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1OpenSSL CHANGES
2===============
3
4This is a high-level summary of the most important changes.
5For a full list of changes, see the [git commit log][log] and
6pick the appropriate release branch.
7
8 [log]: https://github.com/openssl/openssl/commits/
9
10OpenSSL Releases
11----------------
12
13 - [OpenSSL 3.0](#openssl-30)
14 - [OpenSSL 1.1.1](#openssl-111)
15 - [OpenSSL 1.1.0](#openssl-110)
16 - [OpenSSL 1.0.2](#openssl-102)
17 - [OpenSSL 1.0.1](#openssl-101)
18 - [OpenSSL 1.0.0](#openssl-100)
19 - [OpenSSL 0.9.x](#openssl-09x)
20
21OpenSSL 3.0
22-----------
23
24For OpenSSL 3.0 a [Migration guide][] has been added, so the CHANGES entries
25listed here are only a brief description.
26The migration guide contains more detailed information related to new features,
27breaking changes, and mappings for the large list of deprecated functions.
28
29[Migration guide]: https://github.com/openssl/openssl/tree/master/doc/man7/migration_guide.pod
30
31### Changes between 3.0.1 and 3.0.2 [15 Mar 2022]
32
33 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever
34 for non-prime moduli.
35
36 Internally this function is used when parsing certificates that contain
37 elliptic curve public keys in compressed form or explicit elliptic curve
38 parameters with a base point encoded in compressed form.
39
40 It is possible to trigger the infinite loop by crafting a certificate that
41 has invalid explicit curve parameters.
42
43 Since certificate parsing happens prior to verification of the certificate
44 signature, any process that parses an externally supplied certificate may thus
45 be subject to a denial of service attack. The infinite loop can also be
46 reached when parsing crafted private keys as they can contain explicit
47 elliptic curve parameters.
48
49 Thus vulnerable situations include:
50
51 - TLS clients consuming server certificates
52 - TLS servers consuming client certificates
53 - Hosting providers taking certificates or private keys from customers
54 - Certificate authorities parsing certification requests from subscribers
55 - Anything else which parses ASN.1 elliptic curve parameters
56
57 Also any other applications that use the BN_mod_sqrt() where the attacker
58 can control the parameter values are vulnerable to this DoS issue.
59 ([CVE-2022-0778])
60
61 *Tomáš Mráz*
62
63 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489)
64 to the list of ciphersuites providing Perfect Forward Secrecy as
65 required by SECLEVEL >= 3.
66
67 *Dmitry Belyavskiy, Nicola Tuveri*
68
69 * Made the AES constant time code for no-asm configurations
70 optional due to the resulting 95% performance degradation.
71 The AES constant time code can be enabled, for no assembly
72 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME
73
74 *Paul Dale*
75
76 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty
77 passphrase strings.
78
79 *Darshan Sen*
80
81 * The negative return value handling of the certificate verification callback
82 was reverted. The replacement is to set the verification retry state with
83 the SSL_set_retry_verify() function.
84
85 *Tomáš Mráz*
86
87### Changes between 3.0.0 and 3.0.1 [14 Dec 2021]
88
89 * Fixed invalid handling of X509_verify_cert() internal errors in libssl
90 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to
91 verify a certificate supplied by a server. That function may return a
92 negative return value to indicate an internal error (for example out of
93 memory). Such a negative return value is mishandled by OpenSSL and will cause
94 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate
95 success and a subsequent call to SSL_get_error() to return the value
96 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be
97 returned by OpenSSL if the application has previously called
98 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this
99 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be
100 totally unexpected and applications may not behave correctly as a result. The
101 exact behaviour will depend on the application but it could result in
102 crashes, infinite loops or other similar incorrect responses.
103
104 This issue is made more serious in combination with a separate bug in OpenSSL
105 3.0 that will cause X509_verify_cert() to indicate an internal error when
106 processing a certificate chain. This will occur where a certificate does not
107 include the Subject Alternative Name extension but where a Certificate
108 Authority has enforced name constraints. This issue can occur even with valid
109 chains.
110 ([CVE-2021-4044])
111
112 *Matt Caswell*
113
114 * Corrected a few file name and file reference bugs in the build,
115 installation and setup scripts, which lead to installation verification
116 failures. Slightly enhanced the installation verification script.
117
118 *Richard Levitte*
119
120 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private
121 keys.
122
123 *Richard Levitte*
124
125 * Fixed PVK encoder to properly query for the passphrase.
126
127 *Tomáš Mráz*
128
129 * Multiple fixes in the OSSL_HTTP API functions.
130
131 *David von Oheimb*
132
133 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the
134 OSSL_PARAM_INTEGER data type and return error on negative numbers
135 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make
136 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers.
137
138 *Richard Levitte*
139
140 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex.
141
142 *Tomáš Mráz*
143
144 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD.
145
146 *Allan Jude*
147
148 * Multiple threading fixes.
149
150 *Matt Caswell*
151
152 * Added NULL digest implementation to keep compatibility with 1.1.1 version.
153
154 *Tomáš Mráz*
155
156 * Allow fetching an operation from the provider that owns an unexportable key
157 as a fallback if that is still allowed by the property query.
158
159 *Richard Levitte*
160
161### Changes between 1.1.1 and 3.0.0 [7 sep 2021]
162
163 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now
164 deprecated.
165
166 *Matt Caswell*
167
168 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the
169 S390X capability vector to zero. This simplifies testing of different code
170 paths on S390X architecture.
171
172 *Patrick Steuer*
173
174 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed
175 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from
176 SP 800-38D". The communication will fail at this point.
177
178 *Paul Dale*
179
180 * The EC_GROUP_clear_free() function is deprecated as there is nothing
181 confidential in EC_GROUP data.
182
183 *Nicola Tuveri*
184
185 * The byte order mark (BOM) character is ignored if encountered at the
186 beginning of a PEM-formatted file.
187
188 *Dmitry Belyavskiy*
189
190 * Added CMS support for the Russian GOST algorithms.
191
192 *Dmitry Belyavskiy*
193
194 * Due to move of the implementation of cryptographic operations
195 to the providers, validation of various operation parameters can
196 be postponed until the actual operation is executed where previously
197 it happened immediately when an operation parameter was set.
198
199 For example when setting an unsupported curve with
200 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not
201 fail but later keygen operations with the EVP_PKEY_CTX will fail.
202
203 *OpenSSL team members and many third party contributors*
204
205 * The EVP_get_cipherbyname() function will return NULL for algorithms such as
206 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were
207 previously only accessible via low level interfaces. Use EVP_CIPHER_fetch()
208 instead to retrieve these algorithms from a provider.
209
210 *Shane Lontis*
211
212 * On build targets where the multilib postfix is set in the build
213 configuration the libdir directory was changing based on whether
214 the lib directory with the multilib postfix exists on the system
215 or not. This unpredictable behavior was removed and eventual
216 multilib postfix is now always added to the default libdir. Use
217 `--libdir=lib` to override the libdir if adding the postfix is
218 undesirable.
219
220 *Jan Lána*
221
222 * The triple DES key wrap functionality now conforms to RFC 3217 but is
223 no longer interoperable with OpenSSL 1.1.1.
224
225 *Paul Dale*
226
227 * The ERR_GET_FUNC() function was removed. With the loss of meaningful
228 function codes, this function can only cause problems for calling
229 applications.
230
231 *Paul Dale*
232
233 * Add a configurable flag to output date formats as ISO 8601. Does not
234 change the default date format.
235
236 *William Edmisten*
237
238 * Version of MSVC earlier than 1300 could get link warnings, which could
239 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set.
240 Support for this flag has been removed.
241
242 *Rich Salz*
243
244 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG,
245 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for
246 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG
247 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set
248 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency.
249
250 *Rich Salz*
251
252 * The signatures of the functions to get and set options on SSL and
253 SSL_CTX objects changed from "unsigned long" to "uint64_t" type.
254 Some source code changes may be required.
255
256 *Rich Salz*
257
258 * The public definitions of conf_method_st and conf_st have been
259 deprecated. They will be made opaque in a future release.
260
261 *Rich Salz and Tomáš Mráz*
262
263 * Client-initiated renegotiation is disabled by default. To allow it, use
264 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION
265 flag, or the "ClientRenegotiation" config parameter as appropriate.
266
267 *Rich Salz*
268
269 * Add "abspath" and "includedir" pragma's to config files, to prevent,
270 or modify relative pathname inclusion.
271
272 *Rich Salz*
273
274 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2
275 validated. Please consult the README-FIPS and
276 README-PROVIDERS files, as well as the migration guide.
277
278 *OpenSSL team members and many third party contributors*
279
280 * For the key types DH and DHX the allowed settable parameters are now different.
281
282 *Shane Lontis*
283
284 * The openssl commands that read keys, certificates, and CRLs now
285 automatically detect the PEM or DER format of the input files.
286
287 *David von Oheimb, Richard Levitte, and Tomáš Mráz*
288
289 * Added enhanced PKCS#12 APIs which accept a library context.
290
291 *Jon Spillett*
292
293 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl"
294
295 *Matt Caswell*
296
297 * Added support for Kernel TLS (KTLS).
298
299 *Boris Pismenny, John Baldwin and Andrew Gallatin*
300
301 * Support for RFC 5746 secure renegotiation is now required by default for
302 SSL or TLS connections to succeed.
303
304 *Benjamin Kaduk*
305
306 * The signature of the `copy` functional parameter of the
307 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is
308 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly
309 the signature of the `pub_decode` functional parameter of the
310 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is
311 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`.
312
313 *David von Oheimb*
314
315 * The error return values from some control calls (ctrl) have changed.
316
317 *Paul Dale*
318
319 * A public key check is now performed during EVP_PKEY_derive_set_peer().
320
321 *Shane Lontis*
322
323 * Many functions in the EVP_ namespace that are getters of values from
324 implementations or contexts were renamed to include get or get0 in their
325 names. Old names are provided as macro aliases for compatibility and
326 are not deprecated.
327
328 *Tomáš Mráz*
329
330 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT,
331 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT,
332 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations
333 are deprecated.
334
335 *Tomáš Mráz*
336
337 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for
338 more key types.
339
340 * The output from the command line applications may have minor
341 changes.
342
343 *Paul Dale*
344
345 * The output from numerous "printing" may have minor changes.
346
347 *David von Oheimb*
348
349 * Windows thread synchronization uses read/write primitives (SRWLock) when
350 supported by the OS, otherwise CriticalSection continues to be used.
351
352 *Vincent Drake*
353
354 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to
355 work on read only BIO source/sinks that do not support these functions.
356 This allows piping or redirection of a file BIO using stdin to be buffered
357 into memory. This is used internally in OSSL_DECODER_from_bio().
358
359 *Shane Lontis*
360
361 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1
362 this function would return one of the values OSSL_STORE_INFO_NAME,
363 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or
364 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported
365 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now
366 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications
367 using this function should be amended to handle the changed return value.
368
369 *Richard Levitte*
370
371 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035)
372 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations.
373 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present.
374 Correct the semantics of checking the validation chain in case ESSCertID{,v2}
375 contains more than one certificate identifier: This means that all
376 certificates referenced there MUST be part of the validation chain.
377
378 *David von Oheimb*
379
380 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4,
381 RC5, DESX and DES have been moved to the legacy provider.
382
383 *Matt Caswell*
384
385 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and
386 RIPEMD-160 have been moved to the legacy provider.
387
388 *Matt Caswell*
389
390 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a
391 provided key.
392
393 *Dmitry Belyavskiy*
394
395 * The deprecated functions EVP_PKEY_get0_RSA(),
396 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(),
397 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as
398 well as the similarly named "get1" functions behave differently in
399 OpenSSL 3.0.
400
401 *Matt Caswell*
402
403 * A number of functions handling low-level keys or engines were deprecated
404 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(),
405 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and
406 EVP_PKEY_get0_siphash().
407
408 *Matt Caswell*
409
410 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into
411 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF
412 will need to load the legacy crypto provider. This includes these PBE
413 algorithms which use this KDF:
414 - NID_pbeWithMD2AndDES_CBC
415 - NID_pbeWithMD5AndDES_CBC
416 - NID_pbeWithSHA1AndRC2_CBC
417 - NID_pbeWithMD2AndRC2_CBC
418 - NID_pbeWithMD5AndRC2_CBC
419 - NID_pbeWithSHA1AndDES_CBC
420
421 *Jon Spillett*
422
423 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and
424 BIO_debug_callback() functions.
425
426 *Tomáš Mráz*
427
428 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and
429 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions.
430
431 *Tomáš Mráz*
432
433 * The RAND_METHOD APIs have been deprecated.
434
435 *Paul Dale*
436
437 * The SRP APIs have been deprecated.
438
439 *Matt Caswell*
440
441 * Add a compile time option to prevent the caching of provider fetched
442 algorithms. This is enabled by including the no-cached-fetch option
443 at configuration time.
444
445 *Paul Dale*
446
447 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration
448 count of PKCS12_DEFAULT_ITER.
449
450 *Tomáš Mráz and Sahana Prasad*
451
452 * The openssl speed command does not use low-level API calls anymore.
453
454 *Tomáš Mráz*
455
456 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA
457 capable processors.
458
459 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)*
460
461 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3.
462
463 *Matt Caswell*
464
465 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that
466 providers may supply their own group implementations (using either the "key
467 exchange" or the "key encapsulation" methods) which will automatically be
468 detected and used by libssl.
469
470 *Matt Caswell, Nicola Tuveri*
471
472 * The undocumented function X509_certificate_type() has been deprecated;
473
474 *Rich Salz*
475
476 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range().
477
478 *Tomáš Mráz*
479
480 * Removed RSA padding mode for SSLv23 (which was only used for
481 SSLv2). This includes the functions RSA_padding_check_SSLv23() and
482 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated
483 `rsautl` command.
484
485 *Rich Salz*
486
487 * Deprecated the obsolete X9.31 RSA key generation related functions.
488
489 * While a callback function set via `SSL_CTX_set_cert_verify_callback()`
490 is not allowed to return a value > 1, this is no more taken as failure.
491
492 *Viktor Dukhovni and David von Oheimb*
493
494 * Deprecated the obsolete X9.31 RSA key generation related functions
495 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and
496 BN_X931_generate_prime_ex().
497
498 *Tomáš Mráz*
499
500 * The default key generation method for the regular 2-prime RSA keys was
501 changed to the FIPS 186-4 B.3.6 method.
502
503 *Shane Lontis*
504
505 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions.
506
507 *Kurt Roeckx*
508
509 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn().
510
511 *Rich Salz*
512
513 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and
514 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*().
515
516 *Rich Salz, Richard Levitte, and David von Oheimb*
517
518 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`.
519
520 *David von Oheimb*
521
522 * Deprecated `OCSP_parse_url()`.
523
524 *David von Oheimb*
525
526 * Validation of SM2 keys has been separated from the validation of regular EC
527 keys.
528
529 *Nicola Tuveri*
530
531 * Behavior of the `pkey` app is changed, when using the `-check` or `-pubcheck`
532 switches: a validation failure triggers an early exit, returning a failure
533 exit status to the parent process.
534
535 *Nicola Tuveri*
536
537 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites()
538 to ignore unknown ciphers.
539
540 *Otto Hollmann*
541
542 * The `-cipher-commands` and `-digest-commands` options
543 of the command line utility `list` have been deprecated.
544 Instead use the `-cipher-algorithms` and `-digest-algorithms` options.
545
546 *Dmitry Belyavskiy*
547
548 * Added convenience functions for generating asymmetric key pairs:
549 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)>
550 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>.
551
552 *David von Oheimb*
553
554 * All of the low level EC_KEY functions have been deprecated.
555
556 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz*
557
558 * Deprecated all the libcrypto and libssl error string loading
559 functions.
560
561 *Richard Levitte*
562
563 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as
564 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been
565 deprecated.
566
567 *Matt Caswell*
568
569 * The `-crypt` option to the `passwd` command line tool has been removed.
570
571 *Paul Dale*
572
573 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands
574 were removed.
575
576 *Rich Salz*
577
578 * Add support for AES Key Wrap inverse ciphers to the EVP layer.
579
580 *Shane Lontis*
581
582 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and
583 EVP_PKEY_get1_tls_encodedpoint().
584
585 *Matt Caswell*
586
587 * The security callback, which can be customised by application code, supports
588 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter
589 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases.
590
591 *Matt Caswell*
592
593 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public
594 interface. Their functionality remains unchanged.
595
596 *Jordan Montgomery*
597
598 * Added new option for 'openssl list', '-providers', which will display the
599 list of loaded providers, their names, version and status. It optionally
600 displays their gettable parameters.
601
602 *Paul Dale*
603
604 * Removed EVP_PKEY_set_alias_type().
605
606 *Richard Levitte*
607
608 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced
609 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred.
610
611 *Jeremy Walch*
612
613 * Changed all "STACK" functions to be macros instead of inline functions. Macro
614 parameters are still checked for type safety at compile time via helper
615 inline functions.
616
617 *Matt Caswell*
618
619 * Remove the RAND_DRBG API
620
621 *Paul Dale and Matthias St. Pierre*
622
623 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses
624 as well as actual hostnames.
625
626 *David Woodhouse*
627
628 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently
629 ignore TLS protocol version bounds when configuring DTLS-based contexts, and
630 conversely, silently ignore DTLS protocol version bounds when configuring
631 TLS-based contexts. The commands can be repeated to set bounds of both
632 types. The same applies with the corresponding "min_protocol" and
633 "max_protocol" command-line switches, in case some application uses both TLS
634 and DTLS.
635
636 SSL_CTX instances that are created for a fixed protocol version (e.g.
637 `TLSv1_server_method()`) also silently ignore version bounds. Previously
638 attempts to apply bounds to these protocol versions would result in an
639 error. Now only the "version-flexible" SSL_CTX instances are subject to
640 limits in configuration files in command-line options.
641
642 *Viktor Dukhovni*
643
644 * Deprecated the `ENGINE` API. Engines should be replaced with providers
645 going forward.
646
647 *Paul Dale*
648
649 * Reworked the recorded ERR codes to make better space for system errors.
650 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the
651 given code is a system error (true) or an OpenSSL error (false).
652
653 *Richard Levitte*
654
655 * Reworked the test perl framework to better allow parallel testing.
656
657 *Nicola Tuveri and David von Oheimb*
658
659 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and
660 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported.
661
662 *Shane Lontis*
663
664 * 'Configure' has been changed to figure out the configuration target if
665 none is given on the command line. Consequently, the 'config' script is
666 now only a mere wrapper. All documentation is changed to only mention
667 'Configure'.
668
669 *Rich Salz and Richard Levitte*
670
671 * Added a library context `OSSL_LIB_CTX` that applications as well as
672 other libraries can use to form a separate context within which
673 libcrypto operations are performed.
674
675 *Richard Levitte*
676
677 * Added various `_ex` functions to the OpenSSL API that support using
678 a non-default `OSSL_LIB_CTX`.
679
680 *OpenSSL team*
681
682 * Handshake now fails if Extended Master Secret extension is dropped
683 on renegotiation.
684
685 *Tomáš Mráz*
686
687 * Dropped interactive mode from the `openssl` program.
688
689 *Richard Levitte*
690
691 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`.
692
693 *David von Oheimb and Shane Lontis*
694
695 * Deprecated `EC_METHOD_get_field_type()`.
696
697 *Billy Bob Brumley*
698
699 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(),
700 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method()
701 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method().
702
703 *Billy Bob Brumley*
704
705 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of().
706
707 *Billy Bob Brumley*
708
709 * Add CAdES-BES signature verification support, mostly derived
710 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein.
711
712 *Filipe Raimundo da Silva*
713
714 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API.
715
716 *Antonio Iacono*
717
718 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM
719 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS).
720
721 *Jakub Zelenka*
722
723 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine().
724
725 *Billy Bob Brumley*
726
727 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and
728 EC_KEY_precompute_mult().
729
730 *Billy Bob Brumley*
731
732 * Deprecated EC_POINTs_mul().
733
734 *Billy Bob Brumley*
735
736 * Removed FIPS_mode() and FIPS_mode_set().
737
738 *Shane Lontis*
739
740 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced.
741
742 *Dmitry Belyavskiy*
743
744 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and
745 EC_POINT_get_Jprojective_coordinates_GFp().
746
747 *Billy Bob Brumley*
748
749 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM
750 arrays to be more easily constructed via a series of utility functions.
751 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using
752 the various push functions and finally convert to a passable OSSL_PARAM
753 array using OSSL_PARAM_BLD_to_param().
754
755 *Paul Dale*
756
757 * The security strength of SHA1 and MD5 based signatures in TLS has been
758 reduced.
759
760 *Kurt Roeckx*
761
762 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to
763 contain a provider side internal key.
764
765 *Richard Levitte*
766
767 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated.
768
769 *Richard Levitte*
770
771 * Project text documents not yet having a proper file name extension
772 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to
773 `*.md` as far as reasonable, else `*.txt`, for better use with file managers.
774
775 *David von Oheimb*
776
777 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT)
778 have been converted to Markdown with the goal to produce documents
779 which not only look pretty when viewed online in the browser, but
780 remain well readable inside a plain text editor.
781
782 To achieve this goal, a 'minimalistic' Markdown style has been applied
783 which avoids formatting elements that interfere too much with the
784 reading flow in the text file. For example, it
785
786 * avoids [ATX headings][] and uses [setext headings][] instead
787 (which works for `<h1>` and `<h2>` headings only).
788 * avoids [inline links][] and uses [reference links][] instead.
789 * avoids [fenced code blocks][] and uses [indented code blocks][] instead.
790
791 [ATX headings]: https://github.github.com/gfm/#atx-headings
792 [setext headings]: https://github.github.com/gfm/#setext-headings
793 [inline links]: https://github.github.com/gfm/#inline-link
794 [reference links]: https://github.github.com/gfm/#reference-link
795 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks
796 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks
797
798 *Matthias St. Pierre*
799
800 * The test suite is changed to preserve results of each test recipe.
801 A new directory test-runs/ with subdirectories named like the
802 test recipes are created in the build tree for this purpose.
803
804 *Richard Levitte*
805
806 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712).
807 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`.
808 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points.
809
810 *David von Oheimb, Martin Peylo*
811
812 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`.
813 It supports arbitrary request and response content types, GET redirection,
814 TLS, connections via HTTP(S) proxies, connections and exchange via
815 user-defined BIOs (allowing implicit connections), persistent connections,
816 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details.
817 The legacy OCSP-focused (and only partly documented) API
818 is retained for backward compatibility, while most of it is deprecated.
819
820 *David von Oheimb*
821
822 * Added `util/check-format.pl`, a tool for checking adherence to the
823 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>.
824 The checks performed are incomplete and yield some false positives.
825 Still the tool should be useful for detecting most typical glitches.
826
827 *David von Oheimb*
828
829 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended:
830 If domain name resolution yields multiple IP addresses all of them are tried
831 after `connect()` failures.
832
833 *David von Oheimb*
834
835 * All of the low level RSA functions have been deprecated.
836
837 *Paul Dale*
838
839 * X509 certificates signed using SHA1 are no longer allowed at security
840 level 1 and above.
841
842 *Kurt Roeckx*
843
844 * The command line utilities dhparam, dsa, gendsa and dsaparam have been
845 modified to use PKEY APIs. These commands are now in maintenance mode
846 and no new features will be added to them.
847
848 *Paul Dale*
849
850 * The command line utility rsautl has been deprecated.
851
852 *Paul Dale*
853
854 * The command line utilities genrsa and rsa have been modified to use PKEY
855 APIs. They now write PKCS#8 keys by default. These commands are now in
856 maintenance mode and no new features will be added to them.
857
858 *Paul Dale*
859
860 * All of the low level DH functions have been deprecated.
861
862 *Paul Dale and Matt Caswell*
863
864 * All of the low level DSA functions have been deprecated.
865
866 *Paul Dale*
867
868 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to
869 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC.
870
871 *Richard Levitte*
872
873 * Deprecated low level ECDH and ECDSA functions.
874
875 *Paul Dale*
876
877 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old().
878
879 *Richard Levitte*
880
881 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits()
882 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed
883 a new formulation to include all the things it can be used for,
884 as well as words of caution.
885
886 *Richard Levitte*
887
888 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated.
889
890 *Paul Dale*
891
892 * All of the low level HMAC functions have been deprecated.
893
894 *Paul Dale and David von Oheimb*
895
896 * Over two thousand fixes were made to the documentation, including:
897 - Common options (such as -rand/-writerand, TLS version control, etc)
898 were refactored and point to newly-enhanced descriptions in openssl.pod.
899 - Added style conformance for all options (with help from Richard Levitte),
900 documented all reported missing options, added a CI build to check
901 that all options are documented and that no unimplemented options
902 are documented.
903 - Documented some internals, such as all use of environment variables.
904 - Addressed all internal broken L<> references.
905
906 *Rich Salz*
907
908 * All of the low level CMAC functions have been deprecated.
909
910 *Paul Dale*
911
912 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest
913 functions have been deprecated.
914
915 *Paul Dale and David von Oheimb*
916
917 * Corrected the documentation of the return values from the `EVP_DigestSign*`
918 set of functions. The documentation mentioned negative values for some
919 errors, but this was never the case, so the mention of negative values
920 was removed.
921
922 Code that followed the documentation and thereby check with something
923 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed.
924
925 *Richard Levitte*
926
927 * All of the low level cipher functions have been deprecated.
928
929 *Matt Caswell and Paul Dale*
930
931 * Removed include/openssl/opensslconf.h.in and replaced it with
932 include/openssl/configuration.h.in, which differs in not including
933 <openssl/macros.h>. A short header include/openssl/opensslconf.h
934 was added to include both.
935
936 This allows internal hacks where one might need to modify the set
937 of configured macros, for example this if deprecated symbols are
938 still supposed to be available internally:
939
940 #include <openssl/configuration.h>
941
942 #undef OPENSSL_NO_DEPRECATED
943 #define OPENSSL_SUPPRESS_DEPRECATED
944
945 #include <openssl/macros.h>
946
947 This should not be used by applications that use the exported
948 symbols, as that will lead to linking errors.
949
950 *Richard Levitte*
951
952 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure
953 used in exponentiation with 512-bit moduli. No EC algorithms are
954 affected. Analysis suggests that attacks against 2-prime RSA1024,
955 3-prime RSA1536, and DSA1024 as a result of this defect would be very
956 difficult to perform and are not believed likely. Attacks against DH512
957 are considered just feasible. However, for an attack the target would
958 have to re-use the DH512 private key, which is not recommended anyway.
959 Also applications directly using the low-level API BN_mod_exp may be
960 affected if they use BN_FLG_CONSTTIME.
961 ([CVE-2019-1551])
962
963 *Andy Polyakov*
964
965 * Most memory-debug features have been deprecated, and the functionality
966 replaced with no-ops.
967
968 *Rich Salz*
969
970 * Added documentation for the STACK API.
971
972 *Rich Salz*
973
974 * Introduced a new method type and API, OSSL_ENCODER, to represent
975 generic encoders. These do the same sort of job that PEM writers
976 and d2i functions do, but with support for methods supplied by
977 providers, and the possibility for providers to support other
978 formats as well.
979
980 *Richard Levitte*
981
982 * Introduced a new method type and API, OSSL_DECODER, to represent
983 generic decoders. These do the same sort of job that PEM readers
984 and i2d functions do, but with support for methods supplied by
985 providers, and the possibility for providers to support other
986 formats as well.
987
988 *Richard Levitte*
989
990 * Added a .pragma directive to the syntax of configuration files, to
991 allow varying behavior in a supported and predictable manner.
992 Currently added pragma:
993
994 .pragma dollarid:on
995
996 This allows dollar signs to be a keyword character unless it's
997 followed by a opening brace or parenthesis. This is useful for
998 platforms where dollar signs are commonly used in names, such as
999 volume names and system directory names on VMS.
1000
1001 *Richard Levitte*
1002
1003 * Added functionality to create an EVP_PKEY from user data.
1004
1005 *Richard Levitte*
1006
1007 * Change the interpretation of the '--api' configuration option to
1008 mean that this is a desired API compatibility level with no
1009 further meaning. The previous interpretation, that this would
1010 also mean to remove all deprecated symbols up to and including
1011 the given version, no requires that 'no-deprecated' is also used
1012 in the configuration.
1013
1014 When building applications, the desired API compatibility level
1015 can be set with the OPENSSL_API_COMPAT macro like before. For
1016 API compatibility version below 3.0, the old style numerical
1017 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L.
1018 For version 3.0 and on, the value is expected to be the decimal
1019 value calculated from the major and minor version like this:
1020
1021 MAJOR * 10000 + MINOR * 100
1022
1023 Examples:
1024
1025 -DOPENSSL_API_COMPAT=30000 For 3.0
1026 -DOPENSSL_API_COMPAT=30200 For 3.2
1027
1028 To hide declarations that are deprecated up to and including the
1029 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be
1030 given when building the application as well.
1031
1032 *Richard Levitte*
1033
1034 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow
1035 access to certificate and CRL stores via URIs and OSSL_STORE
1036 loaders.
1037
1038 This adds the following functions:
1039
1040 - X509_LOOKUP_store()
1041 - X509_STORE_load_file()
1042 - X509_STORE_load_path()
1043 - X509_STORE_load_store()
1044 - SSL_add_store_cert_subjects_to_stack()
1045 - SSL_CTX_set_default_verify_store()
1046 - SSL_CTX_load_verify_file()
1047 - SSL_CTX_load_verify_dir()
1048 - SSL_CTX_load_verify_store()
1049
1050 *Richard Levitte*
1051
1052 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY.
1053 The presence of this system service is determined at run-time.
1054
1055 *Richard Levitte*
1056
1057 * Added functionality to create an EVP_PKEY context based on data
1058 for methods from providers. This takes an algorithm name and a
1059 property query string and simply stores them, with the intent
1060 that any operation that uses this context will use those strings
1061 to fetch the needed methods implicitly, thereby making the port
1062 of application written for pre-3.0 OpenSSL easier.
1063
1064 *Richard Levitte*
1065
1066 * The undocumented function NCONF_WIN32() has been deprecated; for
1067 conversion details see the HISTORY section of doc/man5/config.pod
1068
1069 *Rich Salz*
1070
1071 * Introduced the new functions EVP_DigestSignInit_ex() and
1072 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and
1073 EVP_DigestVerifyUpdate() have been converted to functions. See the man
1074 pages for further details.
1075
1076 *Matt Caswell*
1077
1078 * Over two thousand fixes were made to the documentation, including:
1079 adding missing command flags, better style conformance, documentation
1080 of internals, etc.
1081
1082 *Rich Salz, Richard Levitte*
1083
1084 * s390x assembly pack: add hardware-support for P-256, P-384, P-521,
1085 X25519, X448, Ed25519 and Ed448.
1086
1087 *Patrick Steuer*
1088
1089 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just
1090 the first value.
1091
1092 *Jon Spillett*
1093
1094 * Deprecated the public definition of `ERR_STATE` as well as the function
1095 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an
1096 opaque type.
1097
1098 *Richard Levitte*
1099
1100 * Added ERR functionality to give callers access to the stored function
1101 names that have replaced the older function code based functions.
1102
1103 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(),
1104 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(),
1105 ERR_peek_error_all() and ERR_peek_last_error_all().
1106
1107 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(),
1108 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and
1109 ERR_func_error_string().
1110
1111 *Richard Levitte*
1112
1113 * Extended testing to be verbose for failing tests only. The make variables
1114 VERBOSE_FAILURE or VF can be used to enable this:
1115
1116 $ make VF=1 test # Unix
1117 $ mms /macro=(VF=1) test ! OpenVMS
1118 $ nmake VF=1 test # Windows
1119
1120 *Richard Levitte*
1121
1122 * Added the `-copy_extensions` option to the `x509` command for use with
1123 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument,
1124 all extensions in the request are copied to the certificate or vice versa.
1125
1126 *David von Oheimb*, *Kirill Stefanenkov <[email protected]>*
1127
1128 * Added the `-copy_extensions` option to the `req` command for use with
1129 `-x509`. When given with the `copy` or `copyall` argument,
1130 all extensions in the certification request are copied to the certificate.
1131
1132 *David von Oheimb*
1133
1134 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates
1135 they generate are by default RFC 5280 compliant in the following sense:
1136 There is a subjectKeyIdentifier extension with a hash value of the public key
1137 and for not self-signed certs there is an authorityKeyIdentifier extension
1138 with a keyIdentifier field or issuer information identifying the signing key.
1139 This is done unless some configuration overrides the new default behavior,
1140 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`.
1141
1142 *David von Oheimb*
1143
1144 * Added several checks to `X509_verify_cert()` according to requirements in
1145 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set
1146 (which may be done by using the CLI option `-x509_strict`):
1147 * The basicConstraints of CA certificates must be marked critical.
1148 * CA certificates must explicitly include the keyUsage extension.
1149 * If a pathlenConstraint is given the key usage keyCertSign must be allowed.
1150 * The issuer name of any certificate must not be empty.
1151 * The subject name of CA certs, certs with keyUsage crlSign,
1152 and certs without subjectAlternativeName must not be empty.
1153 * If a subjectAlternativeName extension is given it must not be empty.
1154 * The signatureAlgorithm field and the cert signature must be consistent.
1155 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier
1156 must not be marked critical.
1157 * The authorityKeyIdentifier must be given for X.509v3 certs
1158 unless they are self-signed.
1159 * The subjectKeyIdentifier must be given for all X.509v3 CA certs.
1160
1161 *David von Oheimb*
1162
1163 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys
1164 with explicit curve parameters (specifiedCurve) as required by RFC 5480.
1165
1166 *Tomáš Mráz*
1167
1168 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
1169 used even when parsing explicit parameters, when loading a encoded key
1170 or calling `EC_GROUP_new_from_ecpkparameters()`/
1171 `EC_GROUP_new_from_ecparameters()`.
1172 This prevents bypass of security hardening and performance gains,
1173 especially for curves with specialized EC_METHODs.
1174 By default, if a key encoded with explicit parameters is loaded and later
1175 encoded, the output is still encoded with explicit parameters, even if
1176 internally a "named" EC_GROUP is used for computation.
1177
1178 *Nicola Tuveri*
1179
1180 * Compute ECC cofactors if not provided during EC_GROUP construction. Before
1181 this change, EC_GROUP_set_generator would accept order and/or cofactor as
1182 NULL. After this change, only the cofactor parameter can be NULL. It also
1183 does some minimal sanity checks on the passed order.
1184 ([CVE-2019-1547])
1185
1186 *Billy Bob Brumley*
1187
1188 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey.
1189 An attack is simple, if the first CMS_recipientInfo is valid but the
1190 second CMS_recipientInfo is chosen ciphertext. If the second
1191 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct
1192 encryption key will be replaced by garbage, and the message cannot be
1193 decoded, but if the RSA decryption fails, the correct encryption key is
1194 used and the recipient will not notice the attack.
1195 As a work around for this potential attack the length of the decrypted
1196 key must be equal to the cipher default key length, in case the
1197 certifiate is not given and all recipientInfo are tried out.
1198 The old behaviour can be re-enabled in the CMS code by setting the
1199 CMS_DEBUG_DECRYPT flag.
1200
1201 *Bernd Edlinger*
1202
1203 * Early start up entropy quality from the DEVRANDOM seed source has been
1204 improved for older Linux systems. The RAND subsystem will wait for
1205 /dev/random to be producing output before seeding from /dev/urandom.
1206 The seeded state is stored for future library initialisations using
1207 a system global shared memory segment. The shared memory identifier
1208 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to
1209 the desired value. The default identifier is 114.
1210
1211 *Paul Dale*
1212
1213 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1
1214 when primes for RSA keys are computed.
1215 Since we previously always generated primes == 2 (mod 3) for RSA keys,
1216 the 2-prime and 3-prime RSA modules were easy to distinguish, since
1217 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore fingerprinting
1218 2-prime vs. 3-prime RSA keys was possible by computing N mod 3.
1219 This avoids possible fingerprinting of newly generated RSA modules.
1220
1221 *Bernd Edlinger*
1222
1223 * Correct the extended master secret constant on EBCDIC systems. Without this
1224 fix TLS connections between an EBCDIC system and a non-EBCDIC system that
1225 negotiate EMS will fail. Unfortunately this also means that TLS connections
1226 between EBCDIC systems with this fix, and EBCDIC systems without this
1227 fix will fail if they negotiate EMS.
1228
1229 *Matt Caswell*
1230
1231 * Changed the library initialisation so that the config file is now loaded
1232 by default. This was already the case for libssl. It now occurs for both
1233 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to
1234 `OPENSSL_init_crypto()` to suppress automatic loading of a config file.
1235
1236 *Matt Caswell*
1237
1238 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`,
1239 where the former acts as a replacement for `ERR_put_error()`, and the
1240 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`.
1241 `ERR_raise_data()` adds more flexibility by taking a format string and
1242 an arbitrary number of arguments following it, to be processed with
1243 `BIO_snprintf()`.
1244
1245 *Richard Levitte*
1246
1247 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used
1248 to check if a named provider is loaded and available. When called, it
1249 will also activate all fallback providers if such are still present.
1250
1251 *Richard Levitte*
1252
1253 * Enforce a minimum DH modulus size of 512 bits.
1254
1255 *Bernd Edlinger*
1256
1257 * Changed DH parameters to generate the order q subgroup instead of 2q.
1258 Previously generated DH parameters are still accepted by DH_check
1259 but DH_generate_key works around that by clearing bit 0 of the
1260 private key for those. This avoids leaking bit 0 of the private key.
1261
1262 *Bernd Edlinger*
1263
1264 * Significantly reduce secure memory usage by the randomness pools.
1265
1266 *Paul Dale*
1267
1268 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been
1269 deprecated.
1270
1271 *Rich Salz*
1272
1273 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange
1274 algorithms. An implementation of a key exchange algorithm can be obtained
1275 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be
1276 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to
1277 the older EVP_PKEY_derive_init() function. See the man pages for the new
1278 functions for further details.
1279
1280 *Matt Caswell*
1281
1282 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function.
1283
1284 *Matt Caswell*
1285
1286 * Removed the function names from error messages and deprecated the
1287 xxx_F_xxx define's.
1288
1289 *Richard Levitte*
1290
1291 * Removed NextStep support and the macro OPENSSL_UNISTD
1292
1293 *Rich Salz*
1294
1295 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL,
1296 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL.
1297 Also removed "export var as function" capability; we do not export
1298 variables, only functions.
1299
1300 *Rich Salz*
1301
1302 * RC5_32_set_key has been changed to return an int type, with 0 indicating
1303 an error and 1 indicating success. In previous versions of OpenSSL this
1304 was a void type. If a key was set longer than the maximum possible this
1305 would crash.
1306
1307 *Matt Caswell*
1308
1309 * Support SM2 signing and verification schemes with X509 certificate.
1310
1311 *Paul Yang*
1312
1313 * Use SHA256 as the default digest for TS query in the `ts` app.
1314
1315 *Tomáš Mráz*
1316
1317 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898.
1318
1319 *Shane Lontis*
1320
1321 * Default cipher lists/suites are now available via a function, the
1322 #defines are deprecated.
1323
1324 *Todd Short*
1325
1326 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and
1327 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries
1328 for Windows Store apps easier. Also, the "no-uplink" option has been added.
1329
1330 *Kenji Mouri*
1331
1332 * Join the directories crypto/x509 and crypto/x509v3
1333
1334 *Richard Levitte*
1335
1336 * Added command 'openssl kdf' that uses the EVP_KDF API.
1337
1338 *Shane Lontis*
1339
1340 * Added command 'openssl mac' that uses the EVP_MAC API.
1341
1342 *Shane Lontis*
1343
1344 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such
1345 as default directories. Also added the command 'openssl info'
1346 for scripting purposes.
1347
1348 *Richard Levitte*
1349
1350 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been
1351 deprecated.
1352
1353 *Matt Caswell*
1354
1355 * Add prediction resistance to the DRBG reseeding process.
1356
1357 *Paul Dale*
1358
1359 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as
1360 mandated by IEEE Std 1619-2018.
1361
1362 *Paul Dale*
1363
1364 * Added newline escaping functionality to a filename when using openssl dgst.
1365 This output format is to replicate the output format found in the `*sum`
1366 checksum programs. This aims to preserve backward compatibility.
1367
1368 *Matt Eaton, Richard Levitte, and Paul Dale*
1369
1370 * Removed the heartbeat message in DTLS feature, as it has very
1371 little usage and doesn't seem to fulfill a valuable purpose.
1372 The configuration option is now deprecated.
1373
1374 *Richard Levitte*
1375
1376 * Changed the output of 'openssl {digestname} < file' to display the
1377 digest name in its output.
1378
1379 *Richard Levitte*
1380
1381 * Added a new generic trace API which provides support for enabling
1382 instrumentation through trace output.
1383
1384 *Richard Levitte & Matthias St. Pierre*
1385
1386 * Added build tests for C++. These are generated files that only do one
1387 thing, to include one public OpenSSL head file each. This tests that
1388 the public header files can be usefully included in a C++ application.
1389
1390 This test isn't enabled by default. It can be enabled with the option
1391 'enable-buildtest-c++'.
1392
1393 *Richard Levitte*
1394
1395 * Added KB KDF (EVP_KDF_KB) to EVP_KDF.
1396
1397 *Robbie Harwood*
1398
1399 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF.
1400
1401 *Simo Sorce*
1402
1403 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF.
1404
1405 *Shane Lontis*
1406
1407 * Added KMAC to EVP_MAC.
1408
1409 *Shane Lontis*
1410
1411 * Added property based algorithm implementation selection framework to
1412 the core.
1413
1414 *Paul Dale*
1415
1416 * Added SCA hardening for modular field inversion in EC_GROUP through
1417 a new dedicated field_inv() pointer in EC_METHOD.
1418 This also addresses a leakage affecting conversions from projective
1419 to affine coordinates.
1420
1421 *Billy Bob Brumley, Nicola Tuveri*
1422
1423 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF
1424 implementations. This includes an EVP_PKEY to EVP_KDF bridge for
1425 those algorithms that were already supported through the EVP_PKEY API
1426 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2
1427 and scrypt are now wrappers that call EVP_KDF.
1428
1429 *David Makepeace*
1430
1431 * Build devcrypto engine as a dynamic engine.
1432
1433 *Eneas U de Queiroz*
1434
1435 * Add keyed BLAKE2 to EVP_MAC.
1436
1437 *Antoine Salon*
1438
1439 * Fix a bug in the computation of the endpoint-pair shared secret used
1440 by DTLS over SCTP. This breaks interoperability with older versions
1441 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime
1442 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling
1443 interoperability with such broken implementations. However, enabling
1444 this switch breaks interoperability with correct implementations.
1445
1446 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a
1447 re-used X509_PUBKEY object if the second PUBKEY is malformed.
1448
1449 *Bernd Edlinger*
1450
1451 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0().
1452
1453 *Richard Levitte*
1454
1455 * Changed the license to the Apache License v2.0.
1456
1457 *Richard Levitte*
1458
1459 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH.
1460
1461 - Major releases (indicated by incrementing the MAJOR release number)
1462 may introduce incompatible API/ABI changes.
1463 - Minor releases (indicated by incrementing the MINOR release number)
1464 may introduce new features but retain API/ABI compatibility.
1465 - Patch releases (indicated by incrementing the PATCH number)
1466 are intended for bug fixes and other improvements of existing
1467 features only (like improving performance or adding documentation)
1468 and retain API/ABI compatibility.
1469
1470 *Richard Levitte*
1471
1472 * Add support for RFC5297 SIV mode (siv128), including AES-SIV.
1473
1474 *Todd Short*
1475
1476 * Remove the 'dist' target and add a tarball building script. The
1477 'dist' target has fallen out of use, and it shouldn't be
1478 necessary to configure just to create a source distribution.
1479
1480 *Richard Levitte*
1481
1482 * Recreate the OS390-Unix config target. It no longer relies on a
1483 special script like it did for OpenSSL pre-1.1.0.
1484
1485 *Richard Levitte*
1486
1487 * Instead of having the source directories listed in Configure, add
1488 a 'build.info' keyword SUBDIRS to indicate what sub-directories to
1489 look into.
1490
1491 *Richard Levitte*
1492
1493 * Add GMAC to EVP_MAC.
1494
1495 *Paul Dale*
1496
1497 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC.
1498
1499 *Richard Levitte*
1500
1501 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC
1502 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge,
1503 to facilitate the continued use of MACs through raw private keys in
1504 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`.
1505
1506 *Richard Levitte*
1507
1508 * Deprecate ECDH_KDF_X9_62().
1509
1510 *Antoine Salon*
1511
1512 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for
1513 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names
1514 are retained for backwards compatibility.
1515
1516 *Antoine Salon*
1517
1518 * AES-XTS mode now enforces that its two keys are different to mitigate
1519 the attacked described in "Efficient Instantiations of Tweakable
1520 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway.
1521 Details of this attack can be obtained from:
1522 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf>
1523
1524 *Paul Dale*
1525
1526 * Rename the object files, i.e. give them other names than in previous
1527 versions. Their names now include the name of the final product, as
1528 well as its type mnemonic (bin, lib, shlib).
1529
1530 *Richard Levitte*
1531
1532 * Added new option for 'openssl list', '-objects', which will display the
1533 list of built in objects, i.e. OIDs with names.
1534
1535 *Richard Levitte*
1536
1537 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`,
1538 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to
1539 be set explicitly.
1540
1541 *Chris Novakovic*
1542
1543 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path
1544 improves application performance by removing data copies and providing
1545 applications with zero-copy system calls such as sendfile and splice.
1546
1547 *Boris Pismenny*
1548
1549 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced.
1550
1551 *Martin Elshuber*
1552
1553 * `PKCS12_parse` now maintains the order of the parsed certificates
1554 when outputting them via `*ca` (rather than reversing it).
1555
1556 *David von Oheimb*
1557
1558 * Deprecated pthread fork support methods.
1559
1560 *Randall S. Becker*
1561
1562 * Added support for FFDHE key exchange in TLS 1.3.
1563
1564 *Raja Ashok*
1565
1566 * Added a new concept for OpenSSL plugability: providers. This
1567 functionality is designed to replace the ENGINE API and ENGINE
1568 implementations, and to be much more dynamic, allowing provider
1569 authors to introduce new algorithms among other things, as long as
1570 there's an API that supports the algorithm type.
1571
1572 With this concept comes a new core API for interaction between
1573 libcrypto and provider implementations. Public libcrypto functions
1574 that want to use providers do so through this core API.
1575
1576 The main documentation for this core API is found in
1577 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn
1578 refer to other manuals describing the API specific for supported
1579 algorithm types (also called operations).
1580
1581 *The OpenSSL team*
1582
1583OpenSSL 1.1.1
1584-------------
1585
1586### Changes between 1.1.1l and 1.1.1m [xx XXX xxxx]
1587
1588 * Avoid loading of a dynamic engine twice.
1589
1590 *Bernd Edlinger*
1591
1592 * Prioritise DANE TLSA issuer certs over peer certs
1593
1594 *Viktor Dukhovni*
1595
1596 * Fixed random API for MacOS prior to 10.12
1597
1598 These MacOS versions don't support the CommonCrypto APIs
1599
1600 *Lenny Primak*
1601
1602### Changes between 1.1.1k and 1.1.1l [24 Aug 2021]
1603
1604 * Fixed an SM2 Decryption Buffer Overflow.
1605
1606 In order to decrypt SM2 encrypted data an application is expected to
1607 call the API function EVP_PKEY_decrypt(). Typically an application will
1608 call this function twice. The first time, on entry, the "out" parameter
1609 can be NULL and, on exit, the "outlen" parameter is populated with the
1610 buffer size required to hold the decrypted plaintext. The application
1611 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt()
1612 again, but this time passing a non-NULL value for the "out" parameter.
1613
1614 A bug in the implementation of the SM2 decryption code means that the
1615 calculation of the buffer size required to hold the plaintext returned
1616 by the first call to EVP_PKEY_decrypt() can be smaller than the actual
1617 size required by the second call. This can lead to a buffer overflow
1618 when EVP_PKEY_decrypt() is called by the application a second time with
1619 a buffer that is too small.
1620
1621 A malicious attacker who is able present SM2 content for decryption to
1622 an application could cause attacker chosen data to overflow the buffer
1623 by up to a maximum of 62 bytes altering the contents of other data held
1624 after the buffer, possibly changing application behaviour or causing
1625 the application to crash. The location of the buffer is application
1626 dependent but is typically heap allocated.
1627 ([CVE-2021-3711])
1628
1629 *Matt Caswell*
1630
1631 * Fixed various read buffer overruns processing ASN.1 strings
1632
1633 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING
1634 structure which contains a buffer holding the string data and a field
1635 holding the buffer length. This contrasts with normal C strings which
1636 are repesented as a buffer for the string data which is terminated
1637 with a NUL (0) byte.
1638
1639 Although not a strict requirement, ASN.1 strings that are parsed using
1640 OpenSSL's own "d2i" functions (and other similar parsing functions) as
1641 well as any string whose value has been set with the ASN1_STRING_set()
1642 function will additionally NUL terminate the byte array in the
1643 ASN1_STRING structure.
1644
1645 However, it is possible for applications to directly construct valid
1646 ASN1_STRING structures which do not NUL terminate the byte array by
1647 directly setting the "data" and "length" fields in the ASN1_STRING
1648 array. This can also happen by using the ASN1_STRING_set0() function.
1649
1650 Numerous OpenSSL functions that print ASN.1 data have been found to
1651 assume that the ASN1_STRING byte array will be NUL terminated, even
1652 though this is not guaranteed for strings that have been directly
1653 constructed. Where an application requests an ASN.1 structure to be
1654 printed, and where that ASN.1 structure contains ASN1_STRINGs that have
1655 been directly constructed by the application without NUL terminating
1656 the "data" field, then a read buffer overrun can occur.
1657
1658 The same thing can also occur during name constraints processing
1659 of certificates (for example if a certificate has been directly
1660 constructed by the application instead of loading it via the OpenSSL
1661 parsing functions, and the certificate contains non NUL terminated
1662 ASN1_STRING structures). It can also occur in the X509_get1_email(),
1663 X509_REQ_get1_email() and X509_get1_ocsp() functions.
1664
1665 If a malicious actor can cause an application to directly construct an
1666 ASN1_STRING and then process it through one of the affected OpenSSL
1667 functions then this issue could be hit. This might result in a crash
1668 (causing a Denial of Service attack). It could also result in the
1669 disclosure of private memory contents (such as private keys, or
1670 sensitive plaintext).
1671 ([CVE-2021-3712])
1672
1673 *Matt Caswell*
1674
1675### Changes between 1.1.1j and 1.1.1k [25 Mar 2021]
1676
1677 * Fixed a problem with verifying a certificate chain when using the
1678 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of
1679 the certificates present in a certificate chain. It is not set by default.
1680
1681 Starting from OpenSSL version 1.1.1h a check to disallow certificates in
1682 the chain that have explicitly encoded elliptic curve parameters was added
1683 as an additional strict check.
1684
1685 An error in the implementation of this check meant that the result of a
1686 previous check to confirm that certificates in the chain are valid CA
1687 certificates was overwritten. This effectively bypasses the check
1688 that non-CA certificates must not be able to issue other certificates.
1689
1690 If a "purpose" has been configured then there is a subsequent opportunity
1691 for checks that the certificate is a valid CA. All of the named "purpose"
1692 values implemented in libcrypto perform this check. Therefore, where
1693 a purpose is set the certificate chain will still be rejected even when the
1694 strict flag has been used. A purpose is set by default in libssl client and
1695 server certificate verification routines, but it can be overridden or
1696 removed by an application.
1697
1698 In order to be affected, an application must explicitly set the
1699 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose
1700 for the certificate verification or, in the case of TLS client or server
1701 applications, override the default purpose.
1702 ([CVE-2021-3450])
1703
1704 *Tomáš Mráz*
1705
1706 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously
1707 crafted renegotiation ClientHello message from a client. If a TLSv1.2
1708 renegotiation ClientHello omits the signature_algorithms extension (where it
1709 was present in the initial ClientHello), but includes a
1710 signature_algorithms_cert extension then a NULL pointer dereference will
1711 result, leading to a crash and a denial of service attack.
1712
1713 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled
1714 (which is the default configuration). OpenSSL TLS clients are not impacted by
1715 this issue.
1716 ([CVE-2021-3449])
1717
1718 *Peter Kästle and Samuel Sapalski*
1719
1720### Changes between 1.1.1i and 1.1.1j [16 Feb 2021]
1721
1722 * Fixed the X509_issuer_and_serial_hash() function. It attempts to
1723 create a unique hash value based on the issuer and serial number data
1724 contained within an X509 certificate. However it was failing to correctly
1725 handle any errors that may occur while parsing the issuer field (which might
1726 occur if the issuer field is maliciously constructed). This may subsequently
1727 result in a NULL pointer deref and a crash leading to a potential denial of
1728 service attack.
1729 ([CVE-2021-23841])
1730
1731 *Matt Caswell*
1732
1733 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING
1734 padding mode to correctly check for rollback attacks. This is considered a
1735 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is
1736 CVE-2021-23839.
1737
1738 *Matt Caswell*
1739
1740 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate
1741 functions. Previously they could overflow the output length argument in some
1742 cases where the input length is close to the maximum permissable length for
1743 an integer on the platform. In such cases the return value from the function
1744 call would be 1 (indicating success), but the output length value would be
1745 negative. This could cause applications to behave incorrectly or crash.
1746 ([CVE-2021-23840])
1747
1748 *Matt Caswell*
1749
1750 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous
1751 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This
1752 could be exploited in a side channel attack to recover the password. Since
1753 the attack is local host only this is outside of the current OpenSSL
1754 threat model and therefore no CVE is assigned.
1755
1756 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this
1757 issue.
1758
1759 *Matt Caswell*
1760
1761### Changes between 1.1.1h and 1.1.1i [8 Dec 2020]
1762
1763 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function
1764 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME.
1765 If an attacker can control both items being compared then this could lead
1766 to a possible denial of service attack. OpenSSL itself uses the
1767 GENERAL_NAME_cmp function for two purposes:
1768 1) Comparing CRL distribution point names between an available CRL and a
1769 CRL distribution point embedded in an X509 certificate
1770 2) When verifying that a timestamp response token signer matches the
1771 timestamp authority name (exposed via the API functions
1772 TS_RESP_verify_response and TS_RESP_verify_token)
1773 ([CVE-2020-1971])
1774
1775 *Matt Caswell*
1776
1777### Changes between 1.1.1g and 1.1.1h [22 Sep 2020]
1778
1779 * Certificates with explicit curve parameters are now disallowed in
1780 verification chains if the X509_V_FLAG_X509_STRICT flag is used.
1781
1782 *Tomáš Mráz*
1783
1784 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently
1785 ignore TLS protocol version bounds when configuring DTLS-based contexts, and
1786 conversely, silently ignore DTLS protocol version bounds when configuring
1787 TLS-based contexts. The commands can be repeated to set bounds of both
1788 types. The same applies with the corresponding "min_protocol" and
1789 "max_protocol" command-line switches, in case some application uses both TLS
1790 and DTLS.
1791
1792 SSL_CTX instances that are created for a fixed protocol version (e.g.
1793 TLSv1_server_method()) also silently ignore version bounds. Previously
1794 attempts to apply bounds to these protocol versions would result in an
1795 error. Now only the "version-flexible" SSL_CTX instances are subject to
1796 limits in configuration files in command-line options.
1797
1798 *Viktor Dukhovni*
1799
1800 * Handshake now fails if Extended Master Secret extension is dropped
1801 on renegotiation.
1802
1803 *Tomáš Mráz*
1804
1805 * The Oracle Developer Studio compiler will start reporting deprecated APIs
1806
1807### Changes between 1.1.1f and 1.1.1g [21 Apr 2020]
1808
1809 * Fixed segmentation fault in SSL_check_chain()
1810 Server or client applications that call the SSL_check_chain() function
1811 during or after a TLS 1.3 handshake may crash due to a NULL pointer
1812 dereference as a result of incorrect handling of the
1813 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid
1814 or unrecognised signature algorithm is received from the peer. This could
1815 be exploited by a malicious peer in a Denial of Service attack.
1816 ([CVE-2020-1967])
1817
1818 *Benjamin Kaduk*
1819
1820 * Added AES consttime code for no-asm configurations
1821 an optional constant time support for AES was added
1822 when building openssl for no-asm.
1823 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME
1824 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME
1825 At this time this feature is by default disabled.
1826 It will be enabled by default in 3.0.
1827
1828 *Bernd Edlinger*
1829
1830### Changes between 1.1.1e and 1.1.1f [31 Mar 2020]
1831
1832 * Revert the change of EOF detection while reading in libssl to avoid
1833 regressions in applications depending on the current way of reporting
1834 the EOF. As the existing method is not fully accurate the change to
1835 reporting the EOF via SSL_ERROR_SSL is kept on the current development
1836 branch and will be present in the 3.0 release.
1837
1838 *Tomáš Mráz*
1839
1840 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1
1841 when primes for RSA keys are computed.
1842 Since we previously always generated primes == 2 (mod 3) for RSA keys,
1843 the 2-prime and 3-prime RSA modules were easy to distinguish, since
1844 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting
1845 2-prime vs. 3-prime RSA keys was possible by computing N mod 3.
1846 This avoids possible fingerprinting of newly generated RSA modules.
1847
1848 *Bernd Edlinger*
1849
1850### Changes between 1.1.1d and 1.1.1e [17 Mar 2020]
1851
1852 * Properly detect EOF while reading in libssl. Previously if we hit an EOF
1853 while reading in libssl then we would report an error back to the
1854 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add
1855 an error to the stack (which means we instead return SSL_ERROR_SSL) and
1856 therefore give a hint as to what went wrong.
1857
1858 *Matt Caswell*
1859
1860 * Check that ed25519 and ed448 are allowed by the security level. Previously
1861 signature algorithms not using an MD were not being checked that they were
1862 allowed by the security level.
1863
1864 *Kurt Roeckx*
1865
1866 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername()
1867 was not quite right. The behaviour was not consistent between resumption
1868 and normal handshakes, and also not quite consistent with historical
1869 behaviour. The behaviour in various scenarios has been clarified and
1870 it has been updated to make it match historical behaviour as closely as
1871 possible.
1872
1873 *Matt Caswell*
1874
1875 * *[VMS only]* The header files that the VMS compilers include automatically,
1876 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas
1877 that the C++ compiler doesn't understand. This is a shortcoming in the
1878 compiler, but can be worked around with `__cplusplus` guards.
1879
1880 C++ applications that use OpenSSL libraries must be compiled using the
1881 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL
1882 functions. Otherwise, only functions with symbols of less than 31
1883 characters can be used, as the linker will not be able to successfully
1884 resolve symbols with longer names.
1885
1886 *Richard Levitte*
1887
1888 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY.
1889 The presence of this system service is determined at run-time.
1890
1891 *Richard Levitte*
1892
1893 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just
1894 the first value.
1895
1896 *Jon Spillett*
1897
1898### Changes between 1.1.1c and 1.1.1d [10 Sep 2019]
1899
1900 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random
1901 number generator (RNG). This was intended to include protection in the
1902 event of a fork() system call in order to ensure that the parent and child
1903 processes did not share the same RNG state. However this protection was not
1904 being used in the default case.
1905
1906 A partial mitigation for this issue is that the output from a high
1907 precision timer is mixed into the RNG state so the likelihood of a parent
1908 and child process sharing state is significantly reduced.
1909
1910 If an application already calls OPENSSL_init_crypto() explicitly using
1911 OPENSSL_INIT_ATFORK then this problem does not occur at all.
1912 ([CVE-2019-1549])
1913
1914 *Matthias St. Pierre*
1915
1916 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
1917 used even when parsing explicit parameters, when loading a encoded key
1918 or calling `EC_GROUP_new_from_ecpkparameters()`/
1919 `EC_GROUP_new_from_ecparameters()`.
1920 This prevents bypass of security hardening and performance gains,
1921 especially for curves with specialized EC_METHODs.
1922 By default, if a key encoded with explicit parameters is loaded and later
1923 encoded, the output is still encoded with explicit parameters, even if
1924 internally a "named" EC_GROUP is used for computation.
1925
1926 *Nicola Tuveri*
1927
1928 * Compute ECC cofactors if not provided during EC_GROUP construction. Before
1929 this change, EC_GROUP_set_generator would accept order and/or cofactor as
1930 NULL. After this change, only the cofactor parameter can be NULL. It also
1931 does some minimal sanity checks on the passed order.
1932 ([CVE-2019-1547])
1933
1934 *Billy Bob Brumley*
1935
1936 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey.
1937 An attack is simple, if the first CMS_recipientInfo is valid but the
1938 second CMS_recipientInfo is chosen ciphertext. If the second
1939 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct
1940 encryption key will be replaced by garbage, and the message cannot be
1941 decoded, but if the RSA decryption fails, the correct encryption key is
1942 used and the recipient will not notice the attack.
1943 As a work around for this potential attack the length of the decrypted
1944 key must be equal to the cipher default key length, in case the
1945 certifiate is not given and all recipientInfo are tried out.
1946 The old behaviour can be re-enabled in the CMS code by setting the
1947 CMS_DEBUG_DECRYPT flag.
1948 ([CVE-2019-1563])
1949
1950 *Bernd Edlinger*
1951
1952 * Early start up entropy quality from the DEVRANDOM seed source has been
1953 improved for older Linux systems. The RAND subsystem will wait for
1954 /dev/random to be producing output before seeding from /dev/urandom.
1955 The seeded state is stored for future library initialisations using
1956 a system global shared memory segment. The shared memory identifier
1957 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to
1958 the desired value. The default identifier is 114.
1959
1960 *Paul Dale*
1961
1962 * Correct the extended master secret constant on EBCDIC systems. Without this
1963 fix TLS connections between an EBCDIC system and a non-EBCDIC system that
1964 negotiate EMS will fail. Unfortunately this also means that TLS connections
1965 between EBCDIC systems with this fix, and EBCDIC systems without this
1966 fix will fail if they negotiate EMS.
1967
1968 *Matt Caswell*
1969
1970 * Use Windows installation paths in the mingw builds
1971
1972 Mingw isn't a POSIX environment per se, which means that Windows
1973 paths should be used for installation.
1974 ([CVE-2019-1552])
1975
1976 *Richard Levitte*
1977
1978 * Changed DH_check to accept parameters with order q and 2q subgroups.
1979 With order 2q subgroups the bit 0 of the private key is not secret
1980 but DH_generate_key works around that by clearing bit 0 of the
1981 private key for those. This avoids leaking bit 0 of the private key.
1982
1983 *Bernd Edlinger*
1984
1985 * Significantly reduce secure memory usage by the randomness pools.
1986
1987 *Paul Dale*
1988
1989 * Revert the DEVRANDOM_WAIT feature for Linux systems
1990
1991 The DEVRANDOM_WAIT feature added a select() call to wait for the
1992 /dev/random device to become readable before reading from the
1993 /dev/urandom device.
1994
1995 It turned out that this change had negative side effects on
1996 performance which were not acceptable. After some discussion it
1997 was decided to revert this feature and leave it up to the OS
1998 resp. the platform maintainer to ensure a proper initialization
1999 during early boot time.
2000
2001 *Matthias St. Pierre*
2002
2003### Changes between 1.1.1b and 1.1.1c [28 May 2019]
2004
2005 * Add build tests for C++. These are generated files that only do one
2006 thing, to include one public OpenSSL head file each. This tests that
2007 the public header files can be usefully included in a C++ application.
2008
2009 This test isn't enabled by default. It can be enabled with the option
2010 'enable-buildtest-c++'.
2011
2012 *Richard Levitte*
2013
2014 * Enable SHA3 pre-hashing for ECDSA and DSA.
2015
2016 *Patrick Steuer*
2017
2018 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024.
2019 This changes the size when using the `genpkey` command when no size is given.
2020 It fixes an omission in earlier changes that changed all RSA, DSA and DH
2021 generation commands to use 2048 bits by default.
2022
2023 *Kurt Roeckx*
2024
2025 * Reorganize the manual pages to consistently have RETURN VALUES,
2026 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust
2027 util/fix-doc-nits accordingly.
2028
2029 *Paul Yang, Joshua Lock*
2030
2031 * Add the missing accessor EVP_PKEY_get0_engine()
2032
2033 *Matt Caswell*
2034
2035 * Have commands like `s_client` and `s_server` output the signature scheme
2036 along with other cipher suite parameters when debugging.
2037
2038 *Lorinczy Zsigmond*
2039
2040 * Make OPENSSL_config() error agnostic again.
2041
2042 *Richard Levitte*
2043
2044 * Do the error handling in RSA decryption constant time.
2045
2046 *Bernd Edlinger*
2047
2048 * Prevent over long nonces in ChaCha20-Poly1305.
2049
2050 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input
2051 for every encryption operation. RFC 7539 specifies that the nonce value
2052 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length
2053 and front pads the nonce with 0 bytes if it is less than 12
2054 bytes. However it also incorrectly allows a nonce to be set of up to 16
2055 bytes. In this case only the last 12 bytes are significant and any
2056 additional leading bytes are ignored.
2057
2058 It is a requirement of using this cipher that nonce values are
2059 unique. Messages encrypted using a reused nonce value are susceptible to
2060 serious confidentiality and integrity attacks. If an application changes
2061 the default nonce length to be longer than 12 bytes and then makes a
2062 change to the leading bytes of the nonce expecting the new value to be a
2063 new unique nonce then such an application could inadvertently encrypt
2064 messages with a reused nonce.
2065
2066 Additionally the ignored bytes in a long nonce are not covered by the
2067 integrity guarantee of this cipher. Any application that relies on the
2068 integrity of these ignored leading bytes of a long nonce may be further
2069 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS,
2070 is safe because no such use sets such a long nonce value. However user
2071 applications that use this cipher directly and set a non-default nonce
2072 length to be longer than 12 bytes may be vulnerable.
2073
2074 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk
2075 Greef of Ronomon.
2076 ([CVE-2019-1543])
2077
2078 *Matt Caswell*
2079
2080 * Add DEVRANDOM_WAIT feature for Linux systems
2081
2082 On older Linux systems where the getrandom() system call is not available,
2083 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG.
2084 Contrary to getrandom(), the /dev/urandom device will not block during
2085 early boot when the kernel CSPRNG has not been seeded yet.
2086
2087 To mitigate this known weakness, use select() to wait for /dev/random to
2088 become readable before reading from /dev/urandom.
2089
2090 * Ensure that SM2 only uses SM3 as digest algorithm
2091
2092 *Paul Yang*
2093
2094### Changes between 1.1.1a and 1.1.1b [26 Feb 2019]
2095
2096 * Change the info callback signals for the start and end of a post-handshake
2097 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START
2098 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get
2099 confused by this and assume that a TLSv1.2 renegotiation has started. This
2100 can break KeyUpdate handling. Instead we no longer signal the start and end
2101 of a post handshake message exchange (although the messages themselves are
2102 still signalled). This could break some applications that were expecting
2103 the old signals. However without this KeyUpdate is not usable for many
2104 applications.
2105
2106 *Matt Caswell*
2107
2108### Changes between 1.1.1 and 1.1.1a [20 Nov 2018]
2109
2110 * Timing vulnerability in DSA signature generation
2111
2112 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a
2113 timing side channel attack. An attacker could use variations in the signing
2114 algorithm to recover the private key.
2115
2116 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser.
2117 ([CVE-2018-0734])
2118
2119 *Paul Dale*
2120
2121 * Timing vulnerability in ECDSA signature generation
2122
2123 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a
2124 timing side channel attack. An attacker could use variations in the signing
2125 algorithm to recover the private key.
2126
2127 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser.
2128 ([CVE-2018-0735])
2129
2130 *Paul Dale*
2131
2132 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input
2133 if its length exceeds 4096 bytes. The limit has been raised to a buffer size
2134 of two gigabytes and the error handling improved.
2135
2136 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been
2137 categorized as a normal bug, not a security issue, because the DRBG reseeds
2138 automatically and is fully functional even without additional randomness
2139 provided by the application.
2140
2141### Changes between 1.1.0i and 1.1.1 [11 Sep 2018]
2142
2143 * Add a new ClientHello callback. Provides a callback interface that gives
2144 the application the ability to adjust the nascent SSL object at the
2145 earliest stage of ClientHello processing, immediately after extensions have
2146 been collected but before they have been processed. In particular, this
2147 callback can adjust the supported TLS versions in response to the contents
2148 of the ClientHello
2149
2150 *Benjamin Kaduk*
2151
2152 * Add SM2 base algorithm support.
2153
2154 *Jack Lloyd*
2155
2156 * s390x assembly pack: add (improved) hardware-support for the following
2157 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb,
2158 aes-cfb/cfb8, aes-ecb.
2159
2160 *Patrick Steuer*
2161
2162 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str
2163 parameter is no longer accepted, as it leads to a corrupt table. NULL
2164 pem_str is reserved for alias entries only.
2165
2166 *Richard Levitte*
2167
2168 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder
2169 step for prime curves. The new implementation is based on formulae from
2170 differential addition-and-doubling in homogeneous projective coordinates
2171 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant
2172 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves
2173 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified
2174 to work in projective coordinates.
2175
2176 *Billy Bob Brumley, Nicola Tuveri*
2177
2178 * Change generating and checking of primes so that the error rate of not
2179 being prime depends on the intended use based on the size of the input.
2180 For larger primes this will result in more rounds of Miller-Rabin.
2181 The maximal error rate for primes with more than 1080 bits is lowered
2182 to 2^-128.
2183
2184 *Kurt Roeckx, Annie Yousar*
2185
2186 * Increase the number of Miller-Rabin rounds for DSA key generating to 64.
2187
2188 *Kurt Roeckx*
2189
2190 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when
2191 moving between systems, and to avoid confusion when a Windows build is
2192 done with mingw vs with MSVC. For POSIX installs, there's still a
2193 symlink or copy named 'tsget' to avoid that confusion as well.
2194
2195 *Richard Levitte*
2196
2197 * Revert blinding in ECDSA sign and instead make problematic addition
2198 length-invariant. Switch even to fixed-length Montgomery multiplication.
2199
2200 *Andy Polyakov*
2201
2202 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder
2203 step for binary curves. The new implementation is based on formulae from
2204 differential addition-and-doubling in mixed Lopez-Dahab projective
2205 coordinates, modified to independently blind the operands.
2206
2207 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri*
2208
2209 * Add a scaffold to optionally enhance the Montgomery ladder implementation
2210 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing
2211 EC_METHODs to implement their own specialized "ladder step", to take
2212 advantage of more favorable coordinate systems or more efficient
2213 differential addition-and-doubling algorithms.
2214
2215 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri*
2216
2217 * Modified the random device based seed sources to keep the relevant
2218 file descriptors open rather than reopening them on each access.
2219 This allows such sources to operate in a chroot() jail without
2220 the associated device nodes being available. This behaviour can be
2221 controlled using RAND_keep_random_devices_open().
2222
2223 *Paul Dale*
2224
2225 * Numerous side-channel attack mitigations have been applied. This may have
2226 performance impacts for some algorithms for the benefit of improved
2227 security. Specific changes are noted in this change log by their respective
2228 authors.
2229
2230 *Matt Caswell*
2231
2232 * AIX shared library support overhaul. Switch to AIX "natural" way of
2233 handling shared libraries, which means collecting shared objects of
2234 different versions and bitnesses in one common archive. This allows to
2235 mitigate conflict between 1.0 and 1.1 side-by-side installations. It
2236 doesn't affect the way 3rd party applications are linked, only how
2237 multi-version installation is managed.
2238
2239 *Andy Polyakov*
2240
2241 * Make ec_group_do_inverse_ord() more robust and available to other
2242 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA
2243 mitigations are applied to the fallback BN_mod_inverse().
2244 When using this function rather than BN_mod_inverse() directly, new
2245 EC cryptosystem implementations are then safer-by-default.
2246
2247 *Billy Bob Brumley*
2248
2249 * Add coordinate blinding for EC_POINT and implement projective
2250 coordinate blinding for generic prime curves as a countermeasure to
2251 chosen point SCA attacks.
2252
2253 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley*
2254
2255 * Add blinding to ECDSA and DSA signatures to protect against side channel
2256 attacks discovered by Keegan Ryan (NCC Group).
2257
2258 *Matt Caswell*
2259
2260 * Enforce checking in the `pkeyutl` command to ensure that the input
2261 length does not exceed the maximum supported digest length when performing
2262 a sign, verify or verifyrecover operation.
2263
2264 *Matt Caswell*
2265
2266 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking
2267 I/O in combination with something like select() or poll() will hang. This
2268 can be turned off again using SSL_CTX_clear_mode().
2269 Many applications do not properly handle non-application data records, and
2270 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works
2271 around the problems in those applications, but can also break some.
2272 It's recommended to read the manpages about SSL_read(), SSL_write(),
2273 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and
2274 SSL_CTX_set_read_ahead() again.
2275
2276 *Kurt Roeckx*
2277
2278 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we
2279 now allow empty (zero character) pass phrases.
2280
2281 *Richard Levitte*
2282
2283 * Apply blinding to binary field modular inversion and remove patent
2284 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation.
2285
2286 *Billy Bob Brumley*
2287
2288 * Deprecate ec2_mult.c and unify scalar multiplication code paths for
2289 binary and prime elliptic curves.
2290
2291 *Billy Bob Brumley*
2292
2293 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for
2294 constant time fixed point multiplication.
2295
2296 *Billy Bob Brumley*
2297
2298 * Revise elliptic curve scalar multiplication with timing attack
2299 defenses: ec_wNAF_mul redirects to a constant time implementation
2300 when computing fixed point and variable point multiplication (which
2301 in OpenSSL are mostly used with secret scalars in keygen, sign,
2302 ECDH derive operations).
2303 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García,
2304 Sohaib ul Hassan*
2305
2306 * Updated CONTRIBUTING
2307
2308 *Rich Salz*
2309
2310 * Updated DRBG / RAND to request nonce and additional low entropy
2311 randomness from the system.
2312
2313 *Matthias St. Pierre*
2314
2315 * Updated 'openssl rehash' to use OpenSSL consistent default.
2316
2317 *Richard Levitte*
2318
2319 * Moved the load of the ssl_conf module to libcrypto, which helps
2320 loading engines that libssl uses before libssl is initialised.
2321
2322 *Matt Caswell*
2323
2324 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA
2325
2326 *Matt Caswell*
2327
2328 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases.
2329
2330 *Ingo Schwarze, Rich Salz*
2331
2332 * Added output of accepting IP address and port for 'openssl s_server'
2333
2334 *Richard Levitte*
2335
2336 * Added a new API for TLSv1.3 ciphersuites:
2337 SSL_CTX_set_ciphersuites()
2338 SSL_set_ciphersuites()
2339
2340 *Matt Caswell*
2341
2342 * Memory allocation failures consistently add an error to the error
2343 stack.
2344
2345 *Rich Salz*
2346
2347 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values
2348 in libcrypto when run as setuid/setgid.
2349
2350 *Bernd Edlinger*
2351
2352 * Load any config file by default when libssl is used.
2353
2354 *Matt Caswell*
2355
2356 * Added new public header file <openssl/rand_drbg.h> and documentation
2357 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview.
2358
2359 *Matthias St. Pierre*
2360
2361 * QNX support removed (cannot find contributors to get their approval
2362 for the license change).
2363
2364 *Rich Salz*
2365
2366 * TLSv1.3 replay protection for early data has been implemented. See the
2367 SSL_read_early_data() man page for further details.
2368
2369 *Matt Caswell*
2370
2371 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite
2372 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and
2373 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3.
2374 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration
2375 would otherwise inadvertently disable all TLSv1.3 ciphersuites the
2376 configuration has been separated out. See the ciphers man page or the
2377 SSL_CTX_set_ciphersuites() man page for more information.
2378
2379 *Matt Caswell*
2380
2381 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running
2382 in responder mode now supports the new "-multi" option, which
2383 spawns the specified number of child processes to handle OCSP
2384 requests. The "-timeout" option now also limits the OCSP
2385 responder's patience to wait to receive the full client request
2386 on a newly accepted connection. Child processes are respawned
2387 as needed, and the CA index file is automatically reloaded
2388 when changed. This makes it possible to run the "ocsp" responder
2389 as a long-running service, making the OpenSSL CA somewhat more
2390 feature-complete. In this mode, most diagnostic messages logged
2391 after entering the event loop are logged via syslog(3) rather than
2392 written to stderr.
2393
2394 *Viktor Dukhovni*
2395
2396 * Added support for X448 and Ed448. Heavily based on original work by
2397 Mike Hamburg.
2398
2399 *Matt Caswell*
2400
2401 * Extend OSSL_STORE with capabilities to search and to narrow the set of
2402 objects loaded. This adds the functions OSSL_STORE_expect() and
2403 OSSL_STORE_find() as well as needed tools to construct searches and
2404 get the search data out of them.
2405
2406 *Richard Levitte*
2407
2408 * Support for TLSv1.3 added. Note that users upgrading from an earlier
2409 version of OpenSSL should review their configuration settings to ensure
2410 that they are still appropriate for TLSv1.3. For further information see:
2411 <https://wiki.openssl.org/index.php/TLS1.3>
2412
2413 *Matt Caswell*
2414
2415 * Grand redesign of the OpenSSL random generator
2416
2417 The default RAND method now utilizes an AES-CTR DRBG according to
2418 NIST standard SP 800-90Ar1. The new random generator is essentially
2419 a port of the default random generator from the OpenSSL FIPS 2.0
2420 object module. It is a hybrid deterministic random bit generator
2421 using an AES-CTR bit stream and which seeds and reseeds itself
2422 automatically using trusted system entropy sources.
2423
2424 Some of its new features are:
2425 - Support for multiple DRBG instances with seed chaining.
2426 - The default RAND method makes use of a DRBG.
2427 - There is a public and private DRBG instance.
2428 - The DRBG instances are fork-safe.
2429 - Keep all global DRBG instances on the secure heap if it is enabled.
2430 - The public and private DRBG instance are per thread for lock free
2431 operation
2432
2433 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre*
2434
2435 * Changed Configure so it only says what it does and doesn't dump
2436 so much data. Instead, ./configdata.pm should be used as a script
2437 to display all sorts of configuration data.
2438
2439 *Richard Levitte*
2440
2441 * Added processing of "make variables" to Configure.
2442
2443 *Richard Levitte*
2444
2445 * Added SHA512/224 and SHA512/256 algorithm support.
2446
2447 *Paul Dale*
2448
2449 * The last traces of Netware support, first removed in 1.1.0, have
2450 now been removed.
2451
2452 *Rich Salz*
2453
2454 * Get rid of Makefile.shared, and in the process, make the processing
2455 of certain files (rc.obj, or the .def/.map/.opt files produced from
2456 the ordinal files) more visible and hopefully easier to trace and
2457 debug (or make silent).
2458
2459 *Richard Levitte*
2460
2461 * Make it possible to have environment variable assignments as
2462 arguments to config / Configure.
2463
2464 *Richard Levitte*
2465
2466 * Add multi-prime RSA (RFC 8017) support.
2467
2468 *Paul Yang*
2469
2470 * Add SM3 implemented according to GB/T 32905-2016
2471 *Jack Lloyd <[email protected]>,*
2472 *Ronald Tse <[email protected]>,*
2473 *Erick Borsboom <[email protected]>*
2474
2475 * Add 'Maximum Fragment Length' TLS extension negotiation and support
2476 as documented in RFC6066.
2477 Based on a patch from Tomasz Moń
2478
2479 *Filipe Raimundo da Silva*
2480
2481 * Add SM4 implemented according to GB/T 32907-2016.
2482 *Jack Lloyd <[email protected]>,*
2483 *Ronald Tse <[email protected]>,*
2484 *Erick Borsboom <[email protected]>*
2485
2486 * Reimplement -newreq-nodes and ERR_error_string_n; the
2487 original author does not agree with the license change.
2488
2489 *Rich Salz*
2490
2491 * Add ARIA AEAD TLS support.
2492
2493 *Jon Spillett*
2494
2495 * Some macro definitions to support VS6 have been removed. Visual
2496 Studio 6 has not worked since 1.1.0
2497
2498 *Rich Salz*
2499
2500 * Add ERR_clear_last_mark(), to allow callers to clear the last mark
2501 without clearing the errors.
2502
2503 *Richard Levitte*
2504
2505 * Add "atfork" functions. If building on a system that without
2506 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application
2507 requirements. The RAND facility now uses/requires this.
2508
2509 *Rich Salz*
2510
2511 * Add SHA3.
2512
2513 *Andy Polyakov*
2514
2515 * The UI API becomes a permanent and integral part of libcrypto, i.e.
2516 not possible to disable entirely. However, it's still possible to
2517 disable the console reading UI method, UI_OpenSSL() (use UI_null()
2518 as a fallback).
2519
2520 To disable, configure with 'no-ui-console'. 'no-ui' is still
2521 possible to use as an alias. Check at compile time with the
2522 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still
2523 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE.
2524
2525 *Richard Levitte*
2526
2527 * Add a STORE module, which implements a uniform and URI based reader of
2528 stores that can contain keys, certificates, CRLs and numerous other
2529 objects. The main API is loosely based on a few stdio functions,
2530 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof,
2531 OSSL_STORE_error and OSSL_STORE_close.
2532 The implementation uses backends called "loaders" to implement arbitrary
2533 URI schemes. There is one built in "loader" for the 'file' scheme.
2534
2535 *Richard Levitte*
2536
2537 * Add devcrypto engine. This has been implemented against cryptodev-linux,
2538 then adjusted to work on FreeBSD 8.4 as well.
2539 Enable by configuring with 'enable-devcryptoeng'. This is done by default
2540 on BSD implementations, as cryptodev.h is assumed to exist on all of them.
2541
2542 *Richard Levitte*
2543
2544 * Module names can prefixed with OSSL_ or OPENSSL_. This affects
2545 util/mkerr.pl, which is adapted to allow those prefixes, leading to
2546 error code calls like this:
2547
2548 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER);
2549
2550 With this change, we claim the namespaces OSSL and OPENSSL in a manner
2551 that can be encoded in C. For the foreseeable future, this will only
2552 affect new modules.
2553
2554 *Richard Levitte and Tim Hudson*
2555
2556 * Removed BSD cryptodev engine.
2557
2558 *Rich Salz*
2559
2560 * Add a build target 'build_all_generated', to build all generated files
2561 and only that. This can be used to prepare everything that requires
2562 things like perl for a system that lacks perl and then move everything
2563 to that system and do the rest of the build there.
2564
2565 *Richard Levitte*
2566
2567 * In the UI interface, make it possible to duplicate the user data. This
2568 can be used by engines that need to retain the data for a longer time
2569 than just the call where this user data is passed.
2570
2571 *Richard Levitte*
2572
2573 * Ignore the '-named_curve auto' value for compatibility of applications
2574 with OpenSSL 1.0.2.
2575
2576 *Tomáš Mráz <[email protected]>*
2577
2578 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2
2579 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such
2580 alerts across multiple records (some of which could be empty). In practice
2581 it make no sense to send an empty alert record, or to fragment one. TLSv1.3
2582 prohibits this altogether and other libraries (BoringSSL, NSS) do not
2583 support this at all. Supporting it adds significant complexity to the
2584 record layer, and its removal is unlikely to cause interoperability
2585 issues.
2586
2587 *Matt Caswell*
2588
2589 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed
2590 with Z. These are meant to replace LONG and ZLONG and to be size safe.
2591 The use of LONG and ZLONG is discouraged and scheduled for deprecation
2592 in OpenSSL 1.2.0.
2593
2594 *Richard Levitte*
2595
2596 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string,
2597 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t.
2598
2599 *Richard Levitte, Andy Polyakov*
2600
2601 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine()
2602 does for RSA, etc.
2603
2604 *Richard Levitte*
2605
2606 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target
2607 platform rather than 'mingw'.
2608
2609 *Richard Levitte*
2610
2611 * The functions X509_STORE_add_cert and X509_STORE_add_crl return
2612 success if they are asked to add an object which already exists
2613 in the store. This change cascades to other functions which load
2614 certificates and CRLs.
2615
2616 *Paul Dale*
2617
2618 * x86_64 assembly pack: annotate code with DWARF CFI directives to
2619 facilitate stack unwinding even from assembly subroutines.
2620
2621 *Andy Polyakov*
2622
2623 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN.
2624 Also remove OPENSSL_GLOBAL entirely, as it became a no-op.
2625
2626 *Richard Levitte*
2627
2628 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c.
2629 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1,
2630 which is the minimum version we support.
2631
2632 *Richard Levitte*
2633
2634 * Certificate time validation (X509_cmp_time) enforces stricter
2635 compliance with RFC 5280. Fractional seconds and timezone offsets
2636 are no longer allowed.
2637
2638 *Emilia Käsper*
2639
2640 * Add support for ARIA
2641
2642 *Paul Dale*
2643
2644 * s_client will now send the Server Name Indication (SNI) extension by
2645 default unless the new "-noservername" option is used. The server name is
2646 based on the host provided to the "-connect" option unless overridden by
2647 using "-servername".
2648
2649 *Matt Caswell*
2650
2651 * Add support for SipHash
2652
2653 *Todd Short*
2654
2655 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0
2656 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to
2657 prevent issues where no progress is being made and the peer continually
2658 sends unrecognised record types, using up resources processing them.
2659
2660 *Matt Caswell*
2661
2662 * 'openssl passwd' can now produce SHA256 and SHA512 based output,
2663 using the algorithm defined in
2664 <https://www.akkadia.org/drepper/SHA-crypt.txt>
2665
2666 *Richard Levitte*
2667
2668 * Heartbeat support has been removed; the ABI is changed for now.
2669
2670 *Richard Levitte, Rich Salz*
2671
2672 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd.
2673
2674 *Emilia Käsper*
2675
2676 * The RSA "null" method, which was partially supported to avoid patent
2677 issues, has been replaced to always returns NULL.
2678
2679 *Rich Salz*
2680
2681OpenSSL 1.1.0
2682-------------
2683
2684### Changes between 1.1.0k and 1.1.0l [10 Sep 2019]
2685
2686 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
2687 used even when parsing explicit parameters, when loading a encoded key
2688 or calling `EC_GROUP_new_from_ecpkparameters()`/
2689 `EC_GROUP_new_from_ecparameters()`.
2690 This prevents bypass of security hardening and performance gains,
2691 especially for curves with specialized EC_METHODs.
2692 By default, if a key encoded with explicit parameters is loaded and later
2693 encoded, the output is still encoded with explicit parameters, even if
2694 internally a "named" EC_GROUP is used for computation.
2695
2696 *Nicola Tuveri*
2697
2698 * Compute ECC cofactors if not provided during EC_GROUP construction. Before
2699 this change, EC_GROUP_set_generator would accept order and/or cofactor as
2700 NULL. After this change, only the cofactor parameter can be NULL. It also
2701 does some minimal sanity checks on the passed order.
2702 ([CVE-2019-1547])
2703
2704 *Billy Bob Brumley*
2705
2706 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey.
2707 An attack is simple, if the first CMS_recipientInfo is valid but the
2708 second CMS_recipientInfo is chosen ciphertext. If the second
2709 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct
2710 encryption key will be replaced by garbage, and the message cannot be
2711 decoded, but if the RSA decryption fails, the correct encryption key is
2712 used and the recipient will not notice the attack.
2713 As a work around for this potential attack the length of the decrypted
2714 key must be equal to the cipher default key length, in case the
2715 certifiate is not given and all recipientInfo are tried out.
2716 The old behaviour can be re-enabled in the CMS code by setting the
2717 CMS_DEBUG_DECRYPT flag.
2718 ([CVE-2019-1563])
2719
2720 *Bernd Edlinger*
2721
2722 * Use Windows installation paths in the mingw builds
2723
2724 Mingw isn't a POSIX environment per se, which means that Windows
2725 paths should be used for installation.
2726 ([CVE-2019-1552])
2727
2728 *Richard Levitte*
2729
2730### Changes between 1.1.0j and 1.1.0k [28 May 2019]
2731
2732 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024.
2733 This changes the size when using the `genpkey` command when no size is given.
2734 It fixes an omission in earlier changes that changed all RSA, DSA and DH
2735 generation commands to use 2048 bits by default.
2736
2737 *Kurt Roeckx*
2738
2739 * Prevent over long nonces in ChaCha20-Poly1305.
2740
2741 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input
2742 for every encryption operation. RFC 7539 specifies that the nonce value
2743 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length
2744 and front pads the nonce with 0 bytes if it is less than 12
2745 bytes. However it also incorrectly allows a nonce to be set of up to 16
2746 bytes. In this case only the last 12 bytes are significant and any
2747 additional leading bytes are ignored.
2748
2749 It is a requirement of using this cipher that nonce values are
2750 unique. Messages encrypted using a reused nonce value are susceptible to
2751 serious confidentiality and integrity attacks. If an application changes
2752 the default nonce length to be longer than 12 bytes and then makes a
2753 change to the leading bytes of the nonce expecting the new value to be a
2754 new unique nonce then such an application could inadvertently encrypt
2755 messages with a reused nonce.
2756
2757 Additionally the ignored bytes in a long nonce are not covered by the
2758 integrity guarantee of this cipher. Any application that relies on the
2759 integrity of these ignored leading bytes of a long nonce may be further
2760 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS,
2761 is safe because no such use sets such a long nonce value. However user
2762 applications that use this cipher directly and set a non-default nonce
2763 length to be longer than 12 bytes may be vulnerable.
2764
2765 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk
2766 Greef of Ronomon.
2767 ([CVE-2019-1543])
2768
2769 *Matt Caswell*
2770
2771 * Added SCA hardening for modular field inversion in EC_GROUP through
2772 a new dedicated field_inv() pointer in EC_METHOD.
2773 This also addresses a leakage affecting conversions from projective
2774 to affine coordinates.
2775
2776 *Billy Bob Brumley, Nicola Tuveri*
2777
2778 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a
2779 re-used X509_PUBKEY object if the second PUBKEY is malformed.
2780
2781 *Bernd Edlinger*
2782
2783 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0().
2784
2785 *Richard Levitte*
2786
2787 * Remove the 'dist' target and add a tarball building script. The
2788 'dist' target has fallen out of use, and it shouldn't be
2789 necessary to configure just to create a source distribution.
2790
2791 *Richard Levitte*
2792
2793### Changes between 1.1.0i and 1.1.0j [20 Nov 2018]
2794
2795 * Timing vulnerability in DSA signature generation
2796
2797 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a
2798 timing side channel attack. An attacker could use variations in the signing
2799 algorithm to recover the private key.
2800
2801 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser.
2802 ([CVE-2018-0734])
2803
2804 *Paul Dale*
2805
2806 * Timing vulnerability in ECDSA signature generation
2807
2808 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a
2809 timing side channel attack. An attacker could use variations in the signing
2810 algorithm to recover the private key.
2811
2812 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser.
2813 ([CVE-2018-0735])
2814
2815 *Paul Dale*
2816
2817 * Add coordinate blinding for EC_POINT and implement projective
2818 coordinate blinding for generic prime curves as a countermeasure to
2819 chosen point SCA attacks.
2820
2821 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley*
2822
2823### Changes between 1.1.0h and 1.1.0i [14 Aug 2018]
2824
2825 * Client DoS due to large DH parameter
2826
2827 During key agreement in a TLS handshake using a DH(E) based ciphersuite a
2828 malicious server can send a very large prime value to the client. This will
2829 cause the client to spend an unreasonably long period of time generating a
2830 key for this prime resulting in a hang until the client has finished. This
2831 could be exploited in a Denial Of Service attack.
2832
2833 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken
2834 ([CVE-2018-0732])
2835
2836 *Guido Vranken*
2837
2838 * Cache timing vulnerability in RSA Key Generation
2839
2840 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to
2841 a cache timing side channel attack. An attacker with sufficient access to
2842 mount cache timing attacks during the RSA key generation process could
2843 recover the private key.
2844
2845 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera
2846 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia.
2847 ([CVE-2018-0737])
2848
2849 *Billy Brumley*
2850
2851 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str
2852 parameter is no longer accepted, as it leads to a corrupt table. NULL
2853 pem_str is reserved for alias entries only.
2854
2855 *Richard Levitte*
2856
2857 * Revert blinding in ECDSA sign and instead make problematic addition
2858 length-invariant. Switch even to fixed-length Montgomery multiplication.
2859
2860 *Andy Polyakov*
2861
2862 * Change generating and checking of primes so that the error rate of not
2863 being prime depends on the intended use based on the size of the input.
2864 For larger primes this will result in more rounds of Miller-Rabin.
2865 The maximal error rate for primes with more than 1080 bits is lowered
2866 to 2^-128.
2867
2868 *Kurt Roeckx, Annie Yousar*
2869
2870 * Increase the number of Miller-Rabin rounds for DSA key generating to 64.
2871
2872 *Kurt Roeckx*
2873
2874 * Add blinding to ECDSA and DSA signatures to protect against side channel
2875 attacks discovered by Keegan Ryan (NCC Group).
2876
2877 *Matt Caswell*
2878
2879 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we
2880 now allow empty (zero character) pass phrases.
2881
2882 *Richard Levitte*
2883
2884 * Certificate time validation (X509_cmp_time) enforces stricter
2885 compliance with RFC 5280. Fractional seconds and timezone offsets
2886 are no longer allowed.
2887
2888 *Emilia Käsper*
2889
2890 * Fixed a text canonicalisation bug in CMS
2891
2892 Where a CMS detached signature is used with text content the text goes
2893 through a canonicalisation process first prior to signing or verifying a
2894 signature. This process strips trailing space at the end of lines, converts
2895 line terminators to CRLF and removes additional trailing line terminators
2896 at the end of a file. A bug in the canonicalisation process meant that
2897 some characters, such as form-feed, were incorrectly treated as whitespace
2898 and removed. This is contrary to the specification (RFC5485). This fix
2899 could mean that detached text data signed with an earlier version of
2900 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data
2901 signed with a fixed OpenSSL may fail to verify with an earlier version of
2902 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data
2903 and use the "-binary" flag (for the "cms" command line application) or set
2904 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()).
2905
2906 *Matt Caswell*
2907
2908### Changes between 1.1.0g and 1.1.0h [27 Mar 2018]
2909
2910 * Constructed ASN.1 types with a recursive definition could exceed the stack
2911
2912 Constructed ASN.1 types with a recursive definition (such as can be found
2913 in PKCS7) could eventually exceed the stack given malicious input with
2914 excessive recursion. This could result in a Denial Of Service attack. There
2915 are no such structures used within SSL/TLS that come from untrusted sources
2916 so this is considered safe.
2917
2918 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz
2919 project.
2920 ([CVE-2018-0739])
2921
2922 *Matt Caswell*
2923
2924 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC
2925
2926 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is
2927 effectively reduced to only comparing the least significant bit of each
2928 byte. This allows an attacker to forge messages that would be considered as
2929 authenticated in an amount of tries lower than that guaranteed by the
2930 security claims of the scheme. The module can only be compiled by the
2931 HP-UX assembler, so that only HP-UX PA-RISC targets are affected.
2932
2933 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg
2934 (IBM).
2935 ([CVE-2018-0733])
2936
2937 *Andy Polyakov*
2938
2939 * Add a build target 'build_all_generated', to build all generated files
2940 and only that. This can be used to prepare everything that requires
2941 things like perl for a system that lacks perl and then move everything
2942 to that system and do the rest of the build there.
2943
2944 *Richard Levitte*
2945
2946 * Backport SSL_OP_NO_RENGOTIATION
2947
2948 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the
2949 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity
2950 changes this is no longer possible in 1.1.0. Therefore the new
2951 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to
2952 1.1.0 to provide equivalent functionality.
2953
2954 Note that if an application built against 1.1.0h headers (or above) is run
2955 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be
2956 accepted but nothing will happen, i.e. renegotiation will not be prevented.
2957
2958 *Matt Caswell*
2959
2960 * Removed the OS390-Unix config target. It relied on a script that doesn't
2961 exist.
2962
2963 *Rich Salz*
2964
2965 * rsaz_1024_mul_avx2 overflow bug on x86_64
2966
2967 There is an overflow bug in the AVX2 Montgomery multiplication procedure
2968 used in exponentiation with 1024-bit moduli. No EC algorithms are affected.
2969 Analysis suggests that attacks against RSA and DSA as a result of this
2970 defect would be very difficult to perform and are not believed likely.
2971 Attacks against DH1024 are considered just feasible, because most of the
2972 work necessary to deduce information about a private key may be performed
2973 offline. The amount of resources required for such an attack would be
2974 significant. However, for an attack on TLS to be meaningful, the server
2975 would have to share the DH1024 private key among multiple clients, which is
2976 no longer an option since CVE-2016-0701.
2977
2978 This only affects processors that support the AVX2 but not ADX extensions
2979 like Intel Haswell (4th generation).
2980
2981 This issue was reported to OpenSSL by David Benjamin (Google). The issue
2982 was originally found via the OSS-Fuzz project.
2983 ([CVE-2017-3738])
2984
2985 *Andy Polyakov*
2986
2987### Changes between 1.1.0f and 1.1.0g [2 Nov 2017]
2988
2989 * bn_sqrx8x_internal carry bug on x86_64
2990
2991 There is a carry propagating bug in the x86_64 Montgomery squaring
2992 procedure. No EC algorithms are affected. Analysis suggests that attacks
2993 against RSA and DSA as a result of this defect would be very difficult to
2994 perform and are not believed likely. Attacks against DH are considered just
2995 feasible (although very difficult) because most of the work necessary to
2996 deduce information about a private key may be performed offline. The amount
2997 of resources required for such an attack would be very significant and
2998 likely only accessible to a limited number of attackers. An attacker would
2999 additionally need online access to an unpatched system using the target
3000 private key in a scenario with persistent DH parameters and a private
3001 key that is shared between multiple clients.
3002
3003 This only affects processors that support the BMI1, BMI2 and ADX extensions
3004 like Intel Broadwell (5th generation) and later or AMD Ryzen.
3005
3006 This issue was reported to OpenSSL by the OSS-Fuzz project.
3007 ([CVE-2017-3736])
3008
3009 *Andy Polyakov*
3010
3011 * Malformed X.509 IPAddressFamily could cause OOB read
3012
3013 If an X.509 certificate has a malformed IPAddressFamily extension,
3014 OpenSSL could do a one-byte buffer overread. The most likely result
3015 would be an erroneous display of the certificate in text format.
3016
3017 This issue was reported to OpenSSL by the OSS-Fuzz project.
3018 ([CVE-2017-3735])
3019
3020 *Rich Salz*
3021
3022### Changes between 1.1.0e and 1.1.0f [25 May 2017]
3023
3024 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target
3025 platform rather than 'mingw'.
3026
3027 *Richard Levitte*
3028
3029 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c.
3030 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1,
3031 which is the minimum version we support.
3032
3033 *Richard Levitte*
3034
3035### Changes between 1.1.0d and 1.1.0e [16 Feb 2017]
3036
3037 * Encrypt-Then-Mac renegotiation crash
3038
3039 During a renegotiation handshake if the Encrypt-Then-Mac extension is
3040 negotiated where it was not in the original handshake (or vice-versa) then
3041 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients
3042 and servers are affected.
3043
3044 This issue was reported to OpenSSL by Joe Orton (Red Hat).
3045 ([CVE-2017-3733])
3046
3047 *Matt Caswell*
3048
3049### Changes between 1.1.0c and 1.1.0d [26 Jan 2017]
3050
3051 * Truncated packet could crash via OOB read
3052
3053 If one side of an SSL/TLS path is running on a 32-bit host and a specific
3054 cipher is being used, then a truncated packet can cause that host to
3055 perform an out-of-bounds read, usually resulting in a crash.
3056
3057 This issue was reported to OpenSSL by Robert Święcki of Google.
3058 ([CVE-2017-3731])
3059
3060 *Andy Polyakov*
3061
3062 * Bad (EC)DHE parameters cause a client crash
3063
3064 If a malicious server supplies bad parameters for a DHE or ECDHE key
3065 exchange then this can result in the client attempting to dereference a
3066 NULL pointer leading to a client crash. This could be exploited in a Denial
3067 of Service attack.
3068
3069 This issue was reported to OpenSSL by Guido Vranken.
3070 ([CVE-2017-3730])
3071
3072 *Matt Caswell*
3073
3074 * BN_mod_exp may produce incorrect results on x86_64
3075
3076 There is a carry propagating bug in the x86_64 Montgomery squaring
3077 procedure. No EC algorithms are affected. Analysis suggests that attacks
3078 against RSA and DSA as a result of this defect would be very difficult to
3079 perform and are not believed likely. Attacks against DH are considered just
3080 feasible (although very difficult) because most of the work necessary to
3081 deduce information about a private key may be performed offline. The amount
3082 of resources required for such an attack would be very significant and
3083 likely only accessible to a limited number of attackers. An attacker would
3084 additionally need online access to an unpatched system using the target
3085 private key in a scenario with persistent DH parameters and a private
3086 key that is shared between multiple clients. For example this can occur by
3087 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very
3088 similar to CVE-2015-3193 but must be treated as a separate problem.
3089
3090 This issue was reported to OpenSSL by the OSS-Fuzz project.
3091 ([CVE-2017-3732])
3092
3093 *Andy Polyakov*
3094
3095### Changes between 1.1.0b and 1.1.0c [10 Nov 2016]
3096
3097 * ChaCha20/Poly1305 heap-buffer-overflow
3098
3099 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to
3100 a DoS attack by corrupting larger payloads. This can result in an OpenSSL
3101 crash. This issue is not considered to be exploitable beyond a DoS.
3102
3103 This issue was reported to OpenSSL by Robert Święcki (Google Security Team)
3104 ([CVE-2016-7054])
3105
3106 *Richard Levitte*
3107
3108 * CMS Null dereference
3109
3110 Applications parsing invalid CMS structures can crash with a NULL pointer
3111 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE
3112 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the
3113 structure callback if an attempt is made to free certain invalid encodings.
3114 Only CHOICE structures using a callback which do not handle NULL value are
3115 affected.
3116
3117 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure.
3118 ([CVE-2016-7053])
3119
3120 *Stephen Henson*
3121
3122 * Montgomery multiplication may produce incorrect results
3123
3124 There is a carry propagating bug in the Broadwell-specific Montgomery
3125 multiplication procedure that handles input lengths divisible by, but
3126 longer than 256 bits. Analysis suggests that attacks against RSA, DSA
3127 and DH private keys are impossible. This is because the subroutine in
3128 question is not used in operations with the private key itself and an input
3129 of the attacker's direct choice. Otherwise the bug can manifest itself as
3130 transient authentication and key negotiation failures or reproducible
3131 erroneous outcome of public-key operations with specially crafted input.
3132 Among EC algorithms only Brainpool P-512 curves are affected and one
3133 presumably can attack ECDH key negotiation. Impact was not analyzed in
3134 detail, because pre-requisites for attack are considered unlikely. Namely
3135 multiple clients have to choose the curve in question and the server has to
3136 share the private key among them, neither of which is default behaviour.
3137 Even then only clients that chose the curve will be affected.
3138
3139 This issue was publicly reported as transient failures and was not
3140 initially recognized as a security issue. Thanks to Richard Morgan for
3141 providing reproducible case.
3142 ([CVE-2016-7055])
3143
3144 *Andy Polyakov*
3145
3146 * Removed automatic addition of RPATH in shared libraries and executables,
3147 as this was a remainder from OpenSSL 1.0.x and isn't needed any more.
3148
3149 *Richard Levitte*
3150
3151### Changes between 1.1.0a and 1.1.0b [26 Sep 2016]
3152
3153 * Fix Use After Free for large message sizes
3154
3155 The patch applied to address CVE-2016-6307 resulted in an issue where if a
3156 message larger than approx 16k is received then the underlying buffer to
3157 store the incoming message is reallocated and moved. Unfortunately a
3158 dangling pointer to the old location is left which results in an attempt to
3159 write to the previously freed location. This is likely to result in a
3160 crash, however it could potentially lead to execution of arbitrary code.
3161
3162 This issue only affects OpenSSL 1.1.0a.
3163
3164 This issue was reported to OpenSSL by Robert Święcki.
3165 ([CVE-2016-6309])
3166
3167 *Matt Caswell*
3168
3169### Changes between 1.1.0 and 1.1.0a [22 Sep 2016]
3170
3171 * OCSP Status Request extension unbounded memory growth
3172
3173 A malicious client can send an excessively large OCSP Status Request
3174 extension. If that client continually requests renegotiation, sending a
3175 large OCSP Status Request extension each time, then there will be unbounded
3176 memory growth on the server. This will eventually lead to a Denial Of
3177 Service attack through memory exhaustion. Servers with a default
3178 configuration are vulnerable even if they do not support OCSP. Builds using
3179 the "no-ocsp" build time option are not affected.
3180
3181 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
3182 ([CVE-2016-6304])
3183
3184 *Matt Caswell*
3185
3186 * SSL_peek() hang on empty record
3187
3188 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer
3189 sends an empty record. This could be exploited by a malicious peer in a
3190 Denial Of Service attack.
3191
3192 This issue was reported to OpenSSL by Alex Gaynor.
3193 ([CVE-2016-6305])
3194
3195 *Matt Caswell*
3196
3197 * Excessive allocation of memory in tls_get_message_header() and
3198 dtls1_preprocess_fragment()
3199
3200 A (D)TLS message includes 3 bytes for its length in the header for the
3201 message. This would allow for messages up to 16Mb in length. Messages of
3202 this length are excessive and OpenSSL includes a check to ensure that a
3203 peer is sending reasonably sized messages in order to avoid too much memory
3204 being consumed to service a connection. A flaw in the logic of version
3205 1.1.0 means that memory for the message is allocated too early, prior to
3206 the excessive message length check. Due to way memory is allocated in
3207 OpenSSL this could mean an attacker could force up to 21Mb to be allocated
3208 to service a connection. This could lead to a Denial of Service through
3209 memory exhaustion. However, the excessive message length check still takes
3210 place, and this would cause the connection to immediately fail. Assuming
3211 that the application calls SSL_free() on the failed connection in a timely
3212 manner then the 21Mb of allocated memory will then be immediately freed
3213 again. Therefore the excessive memory allocation will be transitory in
3214 nature. This then means that there is only a security impact if:
3215
3216 1) The application does not call SSL_free() in a timely manner in the event
3217 that the connection fails
3218 or
3219 2) The application is working in a constrained environment where there is
3220 very little free memory
3221 or
3222 3) The attacker initiates multiple connection attempts such that there are
3223 multiple connections in a state where memory has been allocated for the
3224 connection; SSL_free() has not yet been called; and there is insufficient
3225 memory to service the multiple requests.
3226
3227 Except in the instance of (1) above any Denial Of Service is likely to be
3228 transitory because as soon as the connection fails the memory is
3229 subsequently freed again in the SSL_free() call. However there is an
3230 increased risk during this period of application crashes due to the lack of
3231 memory - which would then mean a more serious Denial of Service.
3232
3233 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
3234 (CVE-2016-6307 and CVE-2016-6308)
3235
3236 *Matt Caswell*
3237
3238 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler,
3239 had to be removed. Primary reason is that vendor assembler can't
3240 assemble our modules with -KPIC flag. As result it, assembly
3241 support, was not even available as option. But its lack means
3242 lack of side-channel resistant code, which is incompatible with
3243 security by todays standards. Fortunately gcc is readily available
3244 prepackaged option, which we firmly point at...
3245
3246 *Andy Polyakov*
3247
3248### Changes between 1.0.2h and 1.1.0 [25 Aug 2016]
3249
3250 * Windows command-line tool supports UTF-8 opt-in option for arguments
3251 and console input. Setting OPENSSL_WIN32_UTF8 environment variable
3252 (to any value) allows Windows user to access PKCS#12 file generated
3253 with Windows CryptoAPI and protected with non-ASCII password, as well
3254 as files generated under UTF-8 locale on Linux also protected with
3255 non-ASCII password.
3256
3257 *Andy Polyakov*
3258
3259 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites
3260 have been disabled by default and removed from DEFAULT, just like RC4.
3261 See the RC4 item below to re-enable both.
3262
3263 *Rich Salz*
3264
3265 * The method for finding the storage location for the Windows RAND seed file
3266 has changed. First we check %RANDFILE%. If that is not set then we check
3267 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If
3268 all else fails we fall back to C:\.
3269
3270 *Matt Caswell*
3271
3272 * The EVP_EncryptUpdate() function has had its return type changed from void
3273 to int. A return of 0 indicates and error while a return of 1 indicates
3274 success.
3275
3276 *Matt Caswell*
3277
3278 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and
3279 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch
3280 off the constant time implementation for RSA, DSA and DH have been made
3281 no-ops and deprecated.
3282
3283 *Matt Caswell*
3284
3285 * Windows RAND implementation was simplified to only get entropy by
3286 calling CryptGenRandom(). Various other RAND-related tickets
3287 were also closed.
3288
3289 *Joseph Wylie Yandle, Rich Salz*
3290
3291 * The stack and lhash API's were renamed to start with `OPENSSL_SK_`
3292 and `OPENSSL_LH_`, respectively. The old names are available
3293 with API compatibility. They new names are now completely documented.
3294
3295 *Rich Salz*
3296
3297 * Unify TYPE_up_ref(obj) methods signature.
3298 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(),
3299 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an
3300 int (instead of void) like all others TYPE_up_ref() methods.
3301 So now these methods also check the return value of CRYPTO_atomic_add(),
3302 and the validity of object reference counter.
3303
3304 *[email protected]*
3305
3306 * With Windows Visual Studio builds, the .pdb files are installed
3307 alongside the installed libraries and executables. For a static
3308 library installation, ossl_static.pdb is the associate compiler
3309 generated .pdb file to be used when linking programs.
3310
3311 *Richard Levitte*
3312
3313 * Remove openssl.spec. Packaging files belong with the packagers.
3314
3315 *Richard Levitte*
3316
3317 * Automatic Darwin/OSX configuration has had a refresh, it will now
3318 recognise x86_64 architectures automatically. You can still decide
3319 to build for a different bitness with the environment variable
3320 KERNEL_BITS (can be 32 or 64), for example:
3321
3322 KERNEL_BITS=32 ./config
3323
3324 *Richard Levitte*
3325
3326 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0,
3327 256 bit AES and HMAC with SHA256.
3328
3329 *Steve Henson*
3330
3331 * Remove support for MIPS o32 ABI on IRIX (and IRIX only).
3332
3333 *Andy Polyakov*
3334
3335 * Triple-DES ciphers have been moved from HIGH to MEDIUM.
3336
3337 *Rich Salz*
3338
3339 * To enable users to have their own config files and build file templates,
3340 Configure looks in the directory indicated by the environment variable
3341 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/
3342 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical
3343 name and is used as is.
3344
3345 *Richard Levitte*
3346
3347 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX,
3348 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type
3349 X509_CERT_FILE_CTX was removed.
3350
3351 *Rich Salz*
3352
3353 * "shared" builds are now the default. To create only static libraries use
3354 the "no-shared" Configure option.
3355
3356 *Matt Caswell*
3357
3358 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options.
3359 All of these option have not worked for some while and are fundamental
3360 algorithms.
3361
3362 *Matt Caswell*
3363
3364 * Make various cleanup routines no-ops and mark them as deprecated. Most
3365 global cleanup functions are no longer required because they are handled
3366 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages).
3367 Explicitly de-initing can cause problems (e.g. where a library that uses
3368 OpenSSL de-inits, but an application is still using it). The affected
3369 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(),
3370 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(),
3371 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and
3372 COMP_zlib_cleanup().
3373
3374 *Matt Caswell*
3375
3376 * --strict-warnings no longer enables runtime debugging options
3377 such as REF_DEBUG. Instead, debug options are automatically
3378 enabled with '--debug' builds.
3379
3380 *Andy Polyakov, Emilia Käsper*
3381
3382 * Made DH and DH_METHOD opaque. The structures for managing DH objects
3383 have been moved out of the public header files. New functions for managing
3384 these have been added.
3385
3386 *Matt Caswell*
3387
3388 * Made RSA and RSA_METHOD opaque. The structures for managing RSA
3389 objects have been moved out of the public header files. New
3390 functions for managing these have been added.
3391
3392 *Richard Levitte*
3393
3394 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects
3395 have been moved out of the public header files. New functions for managing
3396 these have been added.
3397
3398 *Matt Caswell*
3399
3400 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been
3401 moved out of the public header files. New functions for managing these
3402 have been added.
3403
3404 *Matt Caswell*
3405
3406 * Removed no-rijndael as a config option. Rijndael is an old name for AES.
3407
3408 *Matt Caswell*
3409
3410 * Removed the mk1mf build scripts.
3411
3412 *Richard Levitte*
3413
3414 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so
3415 it is always safe to #include a header now.
3416
3417 *Rich Salz*
3418
3419 * Removed the aged BC-32 config and all its supporting scripts
3420
3421 *Richard Levitte*
3422
3423 * Removed support for Ultrix, Netware, and OS/2.
3424
3425 *Rich Salz*
3426
3427 * Add support for HKDF.
3428
3429 *Alessandro Ghedini*
3430
3431 * Add support for blake2b and blake2s
3432
3433 *Bill Cox*
3434
3435 * Added support for "pipelining". Ciphers that have the
3436 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple
3437 encryptions/decryptions simultaneously. There are currently no built-in
3438 ciphers with this property but the expectation is that engines will be able
3439 to offer it to significantly improve throughput. Support has been extended
3440 into libssl so that multiple records for a single connection can be
3441 processed in one go (for >=TLS 1.1).
3442
3443 *Matt Caswell*
3444
3445 * Added the AFALG engine. This is an async capable engine which is able to
3446 offload work to the Linux kernel. In this initial version it only supports
3447 AES128-CBC. The kernel must be version 4.1.0 or greater.
3448
3449 *Catriona Lucey*
3450
3451 * OpenSSL now uses a new threading API. It is no longer necessary to
3452 set locking callbacks to use OpenSSL in a multi-threaded environment. There
3453 are two supported threading models: pthreads and windows threads. It is
3454 also possible to configure OpenSSL at compile time for "no-threads". The
3455 old threading API should no longer be used. The functions have been
3456 replaced with "no-op" compatibility macros.
3457
3458 *Alessandro Ghedini, Matt Caswell*
3459
3460 * Modify behavior of ALPN to invoke callback after SNI/servername
3461 callback, such that updates to the SSL_CTX affect ALPN.
3462
3463 *Todd Short*
3464
3465 * Add SSL_CIPHER queries for authentication and key-exchange.
3466
3467 *Todd Short*
3468
3469 * Changes to the DEFAULT cipherlist:
3470 - Prefer (EC)DHE handshakes over plain RSA.
3471 - Prefer AEAD ciphers over legacy ciphers.
3472 - Prefer ECDSA over RSA when both certificates are available.
3473 - Prefer TLSv1.2 ciphers/PRF.
3474 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the
3475 default cipherlist.
3476
3477 *Emilia Käsper*
3478
3479 * Change the ECC default curve list to be this, in order: x25519,
3480 secp256r1, secp521r1, secp384r1.
3481
3482 *Rich Salz*
3483
3484 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are
3485 disabled by default. They can be re-enabled using the
3486 enable-weak-ssl-ciphers option to Configure.
3487
3488 *Matt Caswell*
3489
3490 * If the server has ALPN configured, but supports no protocols that the
3491 client advertises, send a fatal "no_application_protocol" alert.
3492 This behaviour is SHALL in RFC 7301, though it isn't universally
3493 implemented by other servers.
3494
3495 *Emilia Käsper*
3496
3497 * Add X25519 support.
3498 Add ASN.1 and EVP_PKEY methods for X25519. This includes support
3499 for public and private key encoding using the format documented in
3500 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports
3501 key generation and key derivation.
3502
3503 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses
3504 X25519(29).
3505
3506 *Steve Henson*
3507
3508 * Deprecate SRP_VBASE_get_by_user.
3509 SRP_VBASE_get_by_user had inconsistent memory management behaviour.
3510 In order to fix an unavoidable memory leak ([CVE-2016-0798]),
3511 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP
3512 seed, even if the seed is configured.
3513
3514 Users should use SRP_VBASE_get1_by_user instead. Note that in
3515 SRP_VBASE_get1_by_user, caller must free the returned value. Note
3516 also that even though configuring the SRP seed attempts to hide
3517 invalid usernames by continuing the handshake with fake
3518 credentials, this behaviour is not constant time and no strong
3519 guarantees are made that the handshake is indistinguishable from
3520 that of a valid user.
3521
3522 *Emilia Käsper*
3523
3524 * Configuration change; it's now possible to build dynamic engines
3525 without having to build shared libraries and vice versa. This
3526 only applies to the engines in `engines/`, those in `crypto/engine/`
3527 will always be built into libcrypto (i.e. "static").
3528
3529 Building dynamic engines is enabled by default; to disable, use
3530 the configuration option "disable-dynamic-engine".
3531
3532 The only requirements for building dynamic engines are the
3533 presence of the DSO module and building with position independent
3534 code, so they will also automatically be disabled if configuring
3535 with "disable-dso" or "disable-pic".
3536
3537 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE
3538 are also taken away from openssl/opensslconf.h, as they are
3539 irrelevant.
3540
3541 *Richard Levitte*
3542
3543 * Configuration change; if there is a known flag to compile
3544 position independent code, it will always be applied on the
3545 libcrypto and libssl object files, and never on the application
3546 object files. This means other libraries that use routines from
3547 libcrypto / libssl can be made into shared libraries regardless
3548 of how OpenSSL was configured.
3549
3550 If this isn't desirable, the configuration options "disable-pic"
3551 or "no-pic" can be used to disable the use of PIC. This will
3552 also disable building shared libraries and dynamic engines.
3553
3554 *Richard Levitte*
3555
3556 * Removed JPAKE code. It was experimental and has no wide use.
3557
3558 *Rich Salz*
3559
3560 * The INSTALL_PREFIX Makefile variable has been renamed to
3561 DESTDIR. That makes for less confusion on what this variable
3562 is for. Also, the configuration option --install_prefix is
3563 removed.
3564
3565 *Richard Levitte*
3566
3567 * Heartbeat for TLS has been removed and is disabled by default
3568 for DTLS; configure with enable-heartbeats. Code that uses the
3569 old #define's might need to be updated.
3570
3571 *Emilia Käsper, Rich Salz*
3572
3573 * Rename REF_CHECK to REF_DEBUG.
3574
3575 *Rich Salz*
3576
3577 * New "unified" build system
3578
3579 The "unified" build system is aimed to be a common system for all
3580 platforms we support. With it comes new support for VMS.
3581
3582 This system builds supports building in a different directory tree
3583 than the source tree. It produces one Makefile (for unix family
3584 or lookalikes), or one descrip.mms (for VMS).
3585
3586 The source of information to make the Makefile / descrip.mms is
3587 small files called 'build.info', holding the necessary
3588 information for each directory with source to compile, and a
3589 template in Configurations, like unix-Makefile.tmpl or
3590 descrip.mms.tmpl.
3591
3592 With this change, the library names were also renamed on Windows
3593 and on VMS. They now have names that are closer to the standard
3594 on Unix, and include the major version number, and in certain
3595 cases, the architecture they are built for. See "Notes on shared
3596 libraries" in INSTALL.
3597
3598 We rely heavily on the perl module Text::Template.
3599
3600 *Richard Levitte*
3601
3602 * Added support for auto-initialisation and de-initialisation of the library.
3603 OpenSSL no longer requires explicit init or deinit routines to be called,
3604 except in certain circumstances. See the OPENSSL_init_crypto() and
3605 OPENSSL_init_ssl() man pages for further information.
3606
3607 *Matt Caswell*
3608
3609 * The arguments to the DTLSv1_listen function have changed. Specifically the
3610 "peer" argument is now expected to be a BIO_ADDR object.
3611
3612 * Rewrite of BIO networking library. The BIO library lacked consistent
3613 support of IPv6, and adding it required some more extensive
3614 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types,
3615 which hold all types of addresses and chains of address information.
3616 It also introduces a new API, with functions like BIO_socket,
3617 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept.
3618 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram
3619 have been adapted accordingly.
3620
3621 *Richard Levitte*
3622
3623 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without
3624 the leading 0-byte.
3625
3626 *Emilia Käsper*
3627
3628 * CRIME protection: disable compression by default, even if OpenSSL is
3629 compiled with zlib enabled. Applications can still enable compression
3630 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by
3631 using the SSL_CONF library to configure compression.
3632
3633 *Emilia Käsper*
3634
3635 * The signature of the session callback configured with
3636 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer
3637 was explicitly marked as `const unsigned char*` instead of
3638 `unsigned char*`.
3639
3640 *Emilia Käsper*
3641
3642 * Always DPURIFY. Remove the use of uninitialized memory in the
3643 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op.
3644
3645 *Emilia Käsper*
3646
3647 * Removed many obsolete configuration items, including
3648 DES_PTR, DES_RISC1, DES_RISC2, DES_INT
3649 MD2_CHAR, MD2_INT, MD2_LONG
3650 BF_PTR, BF_PTR2
3651 IDEA_SHORT, IDEA_LONG
3652 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX
3653
3654 *Rich Salz, with advice from Andy Polyakov*
3655
3656 * Many BN internals have been moved to an internal header file.
3657
3658 *Rich Salz with help from Andy Polyakov*
3659
3660 * Configuration and writing out the results from it has changed.
3661 Files such as Makefile include/openssl/opensslconf.h and are now
3662 produced through general templates, such as Makefile.in and
3663 crypto/opensslconf.h.in and some help from the perl module
3664 Text::Template.
3665
3666 Also, the center of configuration information is no longer
3667 Makefile. Instead, Configure produces a perl module in
3668 configdata.pm which holds most of the config data (in the hash
3669 table %config), the target data that comes from the target
3670 configuration in one of the `Configurations/*.conf` files (in
3671 %target).
3672
3673 *Richard Levitte*
3674
3675 * To clarify their intended purposes, the Configure options
3676 --prefix and --openssldir change their semantics, and become more
3677 straightforward and less interdependent.
3678
3679 --prefix shall be used exclusively to give the location INSTALLTOP
3680 where programs, scripts, libraries, include files and manuals are
3681 going to be installed. The default is now /usr/local.
3682
3683 --openssldir shall be used exclusively to give the default
3684 location OPENSSLDIR where certificates, private keys, CRLs are
3685 managed. This is also where the default openssl.cnf gets
3686 installed.
3687 If the directory given with this option is a relative path, the
3688 values of both the --prefix value and the --openssldir value will
3689 be combined to become OPENSSLDIR.
3690 The default for --openssldir is INSTALLTOP/ssl.
3691
3692 Anyone who uses --openssldir to specify where OpenSSL is to be
3693 installed MUST change to use --prefix instead.
3694
3695 *Richard Levitte*
3696
3697 * The GOST engine was out of date and therefore it has been removed. An up
3698 to date GOST engine is now being maintained in an external repository.
3699 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains
3700 support for GOST ciphersuites (these are only activated if a GOST engine
3701 is present).
3702
3703 *Matt Caswell*
3704
3705 * EGD is no longer supported by default; use enable-egd when
3706 configuring.
3707
3708 *Ben Kaduk and Rich Salz*
3709
3710 * The distribution now has Makefile.in files, which are used to
3711 create Makefile's when Configure is run. *Configure must be run
3712 before trying to build now.*
3713
3714 *Rich Salz*
3715
3716 * The return value for SSL_CIPHER_description() for error conditions
3717 has changed.
3718
3719 *Rich Salz*
3720
3721 * Support for RFC6698/RFC7671 DANE TLSA peer authentication.
3722
3723 Obtaining and performing DNSSEC validation of TLSA records is
3724 the application's responsibility. The application provides
3725 the TLSA records of its choice to OpenSSL, and these are then
3726 used to authenticate the peer.
3727
3728 The TLSA records need not even come from DNS. They can, for
3729 example, be used to implement local end-entity certificate or
3730 trust-anchor "pinning", where the "pin" data takes the form
3731 of TLSA records, which can augment or replace verification
3732 based on the usual WebPKI public certification authorities.
3733
3734 *Viktor Dukhovni*
3735
3736 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL
3737 continues to support deprecated interfaces in default builds.
3738 However, applications are strongly advised to compile their
3739 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides
3740 the declarations of all interfaces deprecated in 0.9.8, 1.0.0
3741 or the 1.1.0 releases.
3742
3743 In environments in which all applications have been ported to
3744 not use any deprecated interfaces OpenSSL's Configure script
3745 should be used with the --api=1.1.0 option to entirely remove
3746 support for the deprecated features from the library and
3747 unconditionally disable them in the installed headers.
3748 Essentially the same effect can be achieved with the "no-deprecated"
3749 argument to Configure, except that this will always restrict
3750 the build to just the latest API, rather than a fixed API
3751 version.
3752
3753 As applications are ported to future revisions of the API,
3754 they should update their compile-time OPENSSL_API_COMPAT define
3755 accordingly, but in most cases should be able to continue to
3756 compile with later releases.
3757
3758 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are
3759 0x10000000L and 0x00908000L, respectively. However those
3760 versions did not support the OPENSSL_API_COMPAT feature, and
3761 so applications are not typically tested for explicit support
3762 of just the undeprecated features of either release.
3763
3764 *Viktor Dukhovni*
3765
3766 * Add support for setting the minimum and maximum supported protocol.
3767 It can bet set via the SSL_set_min_proto_version() and
3768 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and
3769 MaxProtocol. It's recommended to use the new APIs to disable
3770 protocols instead of disabling individual protocols using
3771 SSL_set_options() or SSL_CONF's Protocol. This change also
3772 removes support for disabling TLS 1.2 in the OpenSSL TLS
3773 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT.
3774
3775 *Kurt Roeckx*
3776
3777 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl.
3778
3779 *Andy Polyakov*
3780
3781 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD
3782 and integrates ECDSA and ECDH functionality into EC. Implementations can
3783 now redirect key generation and no longer need to convert to or from
3784 ECDSA_SIG format.
3785
3786 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just
3787 include the ec.h header file instead.
3788
3789 *Steve Henson*
3790
3791 * Remove support for all 40 and 56 bit ciphers. This includes all the export
3792 ciphers who are no longer supported and drops support the ephemeral RSA key
3793 exchange. The LOW ciphers currently doesn't have any ciphers in it.
3794
3795 *Kurt Roeckx*
3796
3797 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX
3798 opaque. For HMAC_CTX, the following constructors and destructors
3799 were added:
3800
3801 HMAC_CTX *HMAC_CTX_new(void);
3802 void HMAC_CTX_free(HMAC_CTX *ctx);
3803
3804 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and
3805 destroy such methods has been added. See EVP_MD_meth_new(3) and
3806 EVP_CIPHER_meth_new(3) for documentation.
3807
3808 Additional changes:
3809 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and
3810 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and
3811 `EVP_MD_CTX_reset()` should be called instead to reinitialise
3812 an already created structure.
3813 2) For consistency with the majority of our object creators and
3814 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to
3815 `EVP_MD_CTX_(new|free)`. The old names are retained as macros
3816 for deprecated builds.
3817
3818 *Richard Levitte*
3819
3820 * Added ASYNC support. Libcrypto now includes the async sub-library to enable
3821 cryptographic operations to be performed asynchronously as long as an
3822 asynchronous capable engine is used. See the ASYNC_start_job() man page for
3823 further details. Libssl has also had this capability integrated with the
3824 introduction of the new mode SSL_MODE_ASYNC and associated error
3825 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man
3826 pages. This work was developed in partnership with Intel Corp.
3827
3828 *Matt Caswell*
3829
3830 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is
3831 always enabled now. If you want to disable the support you should
3832 exclude it using the list of supported ciphers. This also means that the
3833 "-no_ecdhe" option has been removed from s_server.
3834
3835 *Kurt Roeckx*
3836
3837 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls
3838 SSL_{CTX_}set1_curves() which can set a list.
3839
3840 *Kurt Roeckx*
3841
3842 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the
3843 curve you want to support using SSL_{CTX_}set1_curves().
3844
3845 *Kurt Roeckx*
3846
3847 * State machine rewrite. The state machine code has been significantly
3848 refactored in order to remove much duplication of code and solve issues
3849 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for
3850 further details). This change does have some associated API changes.
3851 Notably the SSL_state() function has been removed and replaced by
3852 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int.
3853 SSL_set_state() has been removed altogether. The previous handshake states
3854 defined in ssl.h and ssl3.h have also been removed.
3855
3856 *Matt Caswell*
3857
3858 * All instances of the string "ssleay" in the public API were replaced
3859 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's)
3860 Some error codes related to internal RSA_eay API's were renamed.
3861
3862 *Rich Salz*
3863
3864 * The demo files in crypto/threads were moved to demo/threads.
3865
3866 *Rich Salz*
3867
3868 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp,
3869 sureware and ubsec.
3870
3871 *Matt Caswell, Rich Salz*
3872
3873 * New ASN.1 embed macro.
3874
3875 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the
3876 structure is not allocated: it is part of the parent. That is instead of
3877
3878 FOO *x;
3879
3880 it must be:
3881
3882 FOO x;
3883
3884 This reduces memory fragmentation and make it impossible to accidentally
3885 set a mandatory field to NULL.
3886
3887 This currently only works for some fields specifically a SEQUENCE, CHOICE,
3888 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is
3889 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or
3890 SEQUENCE OF.
3891
3892 *Steve Henson*
3893
3894 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled.
3895
3896 *Emilia Käsper*
3897
3898 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although
3899 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also
3900 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add
3901 DES and RC4 ciphersuites.
3902
3903 *Matt Caswell*
3904
3905 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
3906 This changes the decoding behaviour for some invalid messages,
3907 though the change is mostly in the more lenient direction, and
3908 legacy behaviour is preserved as much as possible.
3909
3910 *Emilia Käsper*
3911
3912 * Fix no-stdio build.
3913 *David Woodhouse <[email protected]> and also*
3914 *Ivan Nestlerode <[email protected]>*
3915
3916 * New testing framework
3917 The testing framework has been largely rewritten and is now using
3918 perl and the perl modules Test::Harness and an extended variant of
3919 Test::More called OpenSSL::Test to do its work. All test scripts in
3920 test/ have been rewritten into test recipes, and all direct calls to
3921 executables in test/Makefile have become individual recipes using the
3922 simplified testing OpenSSL::Test::Simple.
3923
3924 For documentation on our testing modules, do:
3925
3926 perldoc test/testlib/OpenSSL/Test/Simple.pm
3927 perldoc test/testlib/OpenSSL/Test.pm
3928
3929 *Richard Levitte*
3930
3931 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT
3932 are used; the latter aborts on memory leaks (usually checked on exit).
3933 Some undocumented "set malloc, etc., hooks" functions were removed
3934 and others were changed. All are now documented.
3935
3936 *Rich Salz*
3937
3938 * In DSA_generate_parameters_ex, if the provided seed is too short,
3939 return an error
3940
3941 *Rich Salz and Ismo Puustinen <[email protected]>*
3942
3943 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites
3944 from RFC4279, RFC4785, RFC5487, RFC5489.
3945
3946 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the
3947 original RSA_PSK patch.
3948
3949 *Steve Henson*
3950
3951 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay
3952 era flag was never set throughout the codebase (only read). Also removed
3953 SSL3_FLAGS_POP_BUFFER which was only used if
3954 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set.
3955
3956 *Matt Caswell*
3957
3958 * Changed the default name options in the "ca", "crl", "req" and "x509"
3959 to be "oneline" instead of "compat".
3960
3961 *Richard Levitte*
3962
3963 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're
3964 not aware of clients that still exhibit this bug, and the workaround
3965 hasn't been working properly for a while.
3966
3967 *Emilia Käsper*
3968
3969 * The return type of BIO_number_read() and BIO_number_written() as well as
3970 the corresponding num_read and num_write members in the BIO structure has
3971 changed from unsigned long to uint64_t. On platforms where an unsigned
3972 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is
3973 transferred.
3974
3975 *Matt Caswell*
3976
3977 * Given the pervasive nature of TLS extensions it is inadvisable to run
3978 OpenSSL without support for them. It also means that maintaining
3979 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably
3980 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed.
3981
3982 *Matt Caswell*
3983
3984 * Removed support for the two export grade static DH ciphersuites
3985 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites
3986 were newly added (along with a number of other static DH ciphersuites) to
3987 1.0.2. However the two export ones have *never* worked since they were
3988 introduced. It seems strange in any case to be adding new export
3989 ciphersuites, and given "logjam" it also does not seem correct to fix them.
3990
3991 *Matt Caswell*
3992
3993 * Version negotiation has been rewritten. In particular SSLv23_method(),
3994 SSLv23_client_method() and SSLv23_server_method() have been deprecated,
3995 and turned into macros which simply call the new preferred function names
3996 TLS_method(), TLS_client_method() and TLS_server_method(). All new code
3997 should use the new names instead. Also as part of this change the ssl23.h
3998 header file has been removed.
3999
4000 *Matt Caswell*
4001
4002 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This
4003 code and the associated standard is no longer considered fit-for-purpose.
4004
4005 *Matt Caswell*
4006
4007 * RT2547 was closed. When generating a private key, try to make the
4008 output file readable only by the owner. This behavior change might
4009 be noticeable when interacting with other software.
4010
4011 * Documented all exdata functions. Added CRYPTO_free_ex_index.
4012 Added a test.
4013
4014 *Rich Salz*
4015
4016 * Added HTTP GET support to the ocsp command.
4017
4018 *Rich Salz*
4019
4020 * Changed default digest for the dgst and enc commands from MD5 to
4021 sha256
4022
4023 *Rich Salz*
4024
4025 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
4026
4027 *Matt Caswell*
4028
4029 * Added support for TLS extended master secret from
4030 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an
4031 initial patch which was a great help during development.
4032
4033 *Steve Henson*
4034
4035 * All libssl internal structures have been removed from the public header
4036 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is
4037 now redundant). Users should not attempt to access internal structures
4038 directly. Instead they should use the provided API functions.
4039
4040 *Matt Caswell*
4041
4042 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
4043 Access to deprecated functions can be re-enabled by running config with
4044 "enable-deprecated". In addition applications wishing to use deprecated
4045 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
4046 will, by default, disable some transitive includes that previously existed
4047 in the header files (e.g. ec.h will no longer, by default, include bn.h)
4048
4049 *Matt Caswell*
4050
4051 * Added support for OCB mode. OpenSSL has been granted a patent license
4052 compatible with the OpenSSL license for use of OCB. Details are available
4053 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support
4054 for OCB can be removed by calling config with no-ocb.
4055
4056 *Matt Caswell*
4057
4058 * SSLv2 support has been removed. It still supports receiving a SSLv2
4059 compatible client hello.
4060
4061 *Kurt Roeckx*
4062
4063 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
4064 done while fixing the error code for the key-too-small case.
4065
4066 *Annie Yousar <[email protected]>*
4067
4068 * CA.sh has been removed; use CA.pl instead.
4069
4070 *Rich Salz*
4071
4072 * Removed old DES API.
4073
4074 *Rich Salz*
4075
4076 * Remove various unsupported platforms:
4077 Sony NEWS4
4078 BEOS and BEOS_R5
4079 NeXT
4080 SUNOS
4081 MPE/iX
4082 Sinix/ReliantUNIX RM400
4083 DGUX
4084 NCR
4085 Tandem
4086 Cray
4087 16-bit platforms such as WIN16
4088
4089 *Rich Salz*
4090
4091 * Clean up OPENSSL_NO_xxx #define's
4092 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF
4093 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx
4094 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC
4095 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160
4096 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO
4097 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY
4098 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP
4099 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK
4100 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY
4101 - Remove MS_STATIC; it's a relic from platforms <32 bits.
4102
4103 *Rich Salz*
4104
4105 * Cleaned up dead code
4106 Remove all but one '#ifdef undef' which is to be looked at.
4107
4108 *Rich Salz*
4109
4110 * Clean up calling of xxx_free routines.
4111 Just like free(), fix most of the xxx_free routines to accept
4112 NULL. Remove the non-null checks from callers. Save much code.
4113
4114 *Rich Salz*
4115
4116 * Add secure heap for storage of private keys (when possible).
4117 Add BIO_s_secmem(), CBIGNUM, etc.
4118 Contributed by Akamai Technologies under our Corporate CLA.
4119
4120 *Rich Salz*
4121
4122 * Experimental support for a new, fast, unbiased prime candidate generator,
4123 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
4124
4125 *Felix Laurie von Massenbach <[email protected]>*
4126
4127 * New output format NSS in the sess_id command line tool. This allows
4128 exporting the session id and the master key in NSS keylog format.
4129
4130 *Martin Kaiser <[email protected]>*
4131
4132 * Harmonize version and its documentation. -f flag is used to display
4133 compilation flags.
4134
4135 *mancha <[email protected]>*
4136
4137 * Fix eckey_priv_encode so it immediately returns an error upon a failure
4138 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue.
4139
4140 *mancha <[email protected]>*
4141
4142 * Fix some double frees. These are not thought to be exploitable.
4143
4144 *mancha <[email protected]>*
4145
4146 * A missing bounds check in the handling of the TLS heartbeat extension
4147 can be used to reveal up to 64k of memory to a connected client or
4148 server.
4149
4150 Thanks for Neel Mehta of Google Security for discovering this bug and to
4151 Adam Langley <[email protected]> and Bodo Moeller <[email protected]> for
4152 preparing the fix ([CVE-2014-0160])
4153
4154 *Adam Langley, Bodo Moeller*
4155
4156 * Fix for the attack described in the paper "Recovering OpenSSL
4157 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
4158 by Yuval Yarom and Naomi Benger. Details can be obtained from:
4159 <http://eprint.iacr.org/2014/140>
4160
4161 Thanks to Yuval Yarom and Naomi Benger for discovering this
4162 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076])
4163
4164 *Yuval Yarom and Naomi Benger*
4165
4166 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
4167 this fixes a limitation in previous versions of OpenSSL.
4168
4169 *Steve Henson*
4170
4171 * Experimental encrypt-then-mac support.
4172
4173 Experimental support for encrypt then mac from
4174 draft-gutmann-tls-encrypt-then-mac-02.txt
4175
4176 To enable it set the appropriate extension number (0x42 for the test
4177 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
4178
4179 For non-compliant peers (i.e. just about everything) this should have no
4180 effect.
4181
4182 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
4183
4184 *Steve Henson*
4185
4186 * Add EVP support for key wrapping algorithms, to avoid problems with
4187 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
4188 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
4189 algorithms and include tests cases.
4190
4191 *Steve Henson*
4192
4193 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
4194 enveloped data.
4195
4196 *Steve Henson*
4197
4198 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
4199 MGF1 digest and OAEP label.
4200
4201 *Steve Henson*
4202
4203 * Make openssl verify return errors.
4204
4205 *Chris Palmer <[email protected]> and Ben Laurie*
4206
4207 * New function ASN1_TIME_diff to calculate the difference between two
4208 ASN1_TIME structures or one structure and the current time.
4209
4210 *Steve Henson*
4211
4212 * Update fips_test_suite to support multiple command line options. New
4213 test to induce all self test errors in sequence and check expected
4214 failures.
4215
4216 *Steve Henson*
4217
4218 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
4219 sign or verify all in one operation.
4220
4221 *Steve Henson*
4222
4223 * Add fips_algvs: a multicall fips utility incorporating all the algorithm
4224 test programs and fips_test_suite. Includes functionality to parse
4225 the minimal script output of fipsalgest.pl directly.
4226
4227 *Steve Henson*
4228
4229 * Add authorisation parameter to FIPS_module_mode_set().
4230
4231 *Steve Henson*
4232
4233 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
4234
4235 *Steve Henson*
4236
4237 * Use separate DRBG fields for internal and external flags. New function
4238 FIPS_drbg_health_check() to perform on demand health checking. Add
4239 generation tests to fips_test_suite with reduced health check interval to
4240 demonstrate periodic health checking. Add "nodh" option to
4241 fips_test_suite to skip very slow DH test.
4242
4243 *Steve Henson*
4244
4245 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
4246 based on NID.
4247
4248 *Steve Henson*
4249
4250 * More extensive health check for DRBG checking many more failure modes.
4251 New function FIPS_selftest_drbg_all() to handle every possible DRBG
4252 combination: call this in fips_test_suite.
4253
4254 *Steve Henson*
4255
4256 * Add support for canonical generation of DSA parameter 'g'. See
4257 FIPS 186-3 A.2.3.
4258
4259 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
4260 POST to handle HMAC cases.
4261
4262 *Steve Henson*
4263
4264 * Add functions FIPS_module_version() and FIPS_module_version_text()
4265 to return numerical and string versions of the FIPS module number.
4266
4267 *Steve Henson*
4268
4269 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
4270 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
4271 outside the validated module in the FIPS capable OpenSSL.
4272
4273 *Steve Henson*
4274
4275 * Minor change to DRBG entropy callback semantics. In some cases
4276 there is no multiple of the block length between min_len and
4277 max_len. Allow the callback to return more than max_len bytes
4278 of entropy but discard any extra: it is the callback's responsibility
4279 to ensure that the extra data discarded does not impact the
4280 requested amount of entropy.
4281
4282 *Steve Henson*
4283
4284 * Add PRNG security strength checks to RSA, DSA and ECDSA using
4285 information in FIPS186-3, SP800-57 and SP800-131A.
4286
4287 *Steve Henson*
4288
4289 * CCM support via EVP. Interface is very similar to GCM case except we
4290 must supply all data in one chunk (i.e. no update, final) and the
4291 message length must be supplied if AAD is used. Add algorithm test
4292 support.
4293
4294 *Steve Henson*
4295
4296 * Initial version of POST overhaul. Add POST callback to allow the status
4297 of POST to be monitored and/or failures induced. Modify fips_test_suite
4298 to use callback. Always run all selftests even if one fails.
4299
4300 *Steve Henson*
4301
4302 * XTS support including algorithm test driver in the fips_gcmtest program.
4303 Note: this does increase the maximum key length from 32 to 64 bytes but
4304 there should be no binary compatibility issues as existing applications
4305 will never use XTS mode.
4306
4307 *Steve Henson*
4308
4309 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
4310 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
4311 performs algorithm blocking for unapproved PRNG types. Also do not
4312 set PRNG type in FIPS_mode_set(): leave this to the application.
4313 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
4314 the standard OpenSSL PRNG: set additional data to a date time vector.
4315
4316 *Steve Henson*
4317
4318 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`.
4319 This shouldn't present any incompatibility problems because applications
4320 shouldn't be using these directly and any that are will need to rethink
4321 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
4322
4323 *Steve Henson*
4324
4325 * Extensive self tests and health checking required by SP800-90 DRBG.
4326 Remove strength parameter from FIPS_drbg_instantiate and always
4327 instantiate at maximum supported strength.
4328
4329 *Steve Henson*
4330
4331 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
4332
4333 *Steve Henson*
4334
4335 * New algorithm test program fips_dhvs to handle DH primitives only testing.
4336
4337 *Steve Henson*
4338
4339 * New function DH_compute_key_padded() to compute a DH key and pad with
4340 leading zeroes if needed: this complies with SP800-56A et al.
4341
4342 *Steve Henson*
4343
4344 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
4345 anything, incomplete, subject to change and largely untested at present.
4346
4347 *Steve Henson*
4348
4349 * Modify fipscanisteronly build option to only build the necessary object
4350 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
4351
4352 *Steve Henson*
4353
4354 * Add experimental option FIPSSYMS to give all symbols in
4355 fipscanister.o and FIPS or fips prefix. This will avoid
4356 conflicts with future versions of OpenSSL. Add perl script
4357 util/fipsas.pl to preprocess assembly language source files
4358 and rename any affected symbols.
4359
4360 *Steve Henson*
4361
4362 * Add selftest checks and algorithm block of non-fips algorithms in
4363 FIPS mode. Remove DES2 from selftests.
4364
4365 *Steve Henson*
4366
4367 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
4368 return internal method without any ENGINE dependencies. Add new
4369 tiny fips sign and verify functions.
4370
4371 *Steve Henson*
4372
4373 * New build option no-ec2m to disable characteristic 2 code.
4374
4375 *Steve Henson*
4376
4377 * New build option "fipscanisteronly". This only builds fipscanister.o
4378 and (currently) associated fips utilities. Uses the file Makefile.fips
4379 instead of Makefile.org as the prototype.
4380
4381 *Steve Henson*
4382
4383 * Add some FIPS mode restrictions to GCM. Add internal IV generator.
4384 Update fips_gcmtest to use IV generator.
4385
4386 *Steve Henson*
4387
4388 * Initial, experimental EVP support for AES-GCM. AAD can be input by
4389 setting output buffer to NULL. The `*Final` function must be
4390 called although it will not retrieve any additional data. The tag
4391 can be set or retrieved with a ctrl. The IV length is by default 12
4392 bytes (96 bits) but can be set to an alternative value. If the IV
4393 length exceeds the maximum IV length (currently 16 bytes) it cannot be
4394 set before the key.
4395
4396 *Steve Henson*
4397
4398 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
4399 underlying do_cipher function handles all cipher semantics itself
4400 including padding and finalisation. This is useful if (for example)
4401 an ENGINE cipher handles block padding itself. The behaviour of
4402 do_cipher is subtly changed if this flag is set: the return value
4403 is the number of characters written to the output buffer (zero is
4404 no longer an error code) or a negative error code. Also if the
4405 input buffer is NULL and length 0 finalisation should be performed.
4406
4407 *Steve Henson*
4408
4409 * If a candidate issuer certificate is already part of the constructed
4410 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
4411
4412 *Steve Henson*
4413
4414 * Improve forward-security support: add functions
4415
4416 void SSL_CTX_set_not_resumable_session_callback(
4417 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
4418 void SSL_set_not_resumable_session_callback(
4419 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
4420
4421 for use by SSL/TLS servers; the callback function will be called whenever a
4422 new session is created, and gets to decide whether the session may be
4423 cached to make it resumable (return 0) or not (return 1). (As by the
4424 SSL/TLS protocol specifications, the session_id sent by the server will be
4425 empty to indicate that the session is not resumable; also, the server will
4426 not generate RFC 4507 (RFC 5077) session tickets.)
4427
4428 A simple reasonable callback implementation is to return is_forward_secure.
4429 This parameter will be set to 1 or 0 depending on the ciphersuite selected
4430 by the SSL/TLS server library, indicating whether it can provide forward
4431 security.
4432
4433 *Emilia Käsper <[email protected]> (Google)*
4434
4435 * New -verify_name option in command line utilities to set verification
4436 parameters by name.
4437
4438 *Steve Henson*
4439
4440 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
4441 Add CMAC pkey methods.
4442
4443 *Steve Henson*
4444
4445 * Experimental renegotiation in s_server -www mode. If the client
4446 browses /reneg connection is renegotiated. If /renegcert it is
4447 renegotiated requesting a certificate.
4448
4449 *Steve Henson*
4450
4451 * Add an "external" session cache for debugging purposes to s_server. This
4452 should help trace issues which normally are only apparent in deployed
4453 multi-process servers.
4454
4455 *Steve Henson*
4456
4457 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
4458 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
4459 BIO_set_cipher() and some obscure PEM functions were changed so they
4460 can now return an error. The RAND changes required a change to the
4461 RAND_METHOD structure.
4462
4463 *Steve Henson*
4464
4465 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of
4466 a gcc attribute to warn if the result of a function is ignored. This
4467 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
4468 whose return value is often ignored.
4469
4470 *Steve Henson*
4471
4472 * New -noct, -requestct, -requirect and -ctlogfile options for s_client.
4473 These allow SCTs (signed certificate timestamps) to be requested and
4474 validated when establishing a connection.
4475
4476 *Rob Percival <[email protected]>*
4477
4478OpenSSL 1.0.2
4479-------------
4480
4481### Changes between 1.0.2s and 1.0.2t [10 Sep 2019]
4482
4483 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
4484 used even when parsing explicit parameters, when loading a encoded key
4485 or calling `EC_GROUP_new_from_ecpkparameters()`/
4486 `EC_GROUP_new_from_ecparameters()`.
4487 This prevents bypass of security hardening and performance gains,
4488 especially for curves with specialized EC_METHODs.
4489 By default, if a key encoded with explicit parameters is loaded and later
4490 encoded, the output is still encoded with explicit parameters, even if
4491 internally a "named" EC_GROUP is used for computation.
4492
4493 *Nicola Tuveri*
4494
4495 * Compute ECC cofactors if not provided during EC_GROUP construction. Before
4496 this change, EC_GROUP_set_generator would accept order and/or cofactor as
4497 NULL. After this change, only the cofactor parameter can be NULL. It also
4498 does some minimal sanity checks on the passed order.
4499 ([CVE-2019-1547])
4500
4501 *Billy Bob Brumley*
4502
4503 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey.
4504 An attack is simple, if the first CMS_recipientInfo is valid but the
4505 second CMS_recipientInfo is chosen ciphertext. If the second
4506 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct
4507 encryption key will be replaced by garbage, and the message cannot be
4508 decoded, but if the RSA decryption fails, the correct encryption key is
4509 used and the recipient will not notice the attack.
4510 As a work around for this potential attack the length of the decrypted
4511 key must be equal to the cipher default key length, in case the
4512 certifiate is not given and all recipientInfo are tried out.
4513 The old behaviour can be re-enabled in the CMS code by setting the
4514 CMS_DEBUG_DECRYPT flag.
4515 ([CVE-2019-1563])
4516
4517 *Bernd Edlinger*
4518
4519 * Document issue with installation paths in diverse Windows builds
4520
4521 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL
4522 binaries and run-time config file.
4523 ([CVE-2019-1552])
4524
4525 *Richard Levitte*
4526
4527### Changes between 1.0.2r and 1.0.2s [28 May 2019]
4528
4529 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024.
4530 This changes the size when using the `genpkey` command when no size is given.
4531 It fixes an omission in earlier changes that changed all RSA, DSA and DH
4532 generation commands to use 2048 bits by default.
4533
4534 *Kurt Roeckx*
4535
4536 * Add FIPS support for Android Arm 64-bit
4537
4538 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object
4539 Module in Version 2.0.10. For some reason, the corresponding target
4540 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be
4541 built with FIPS support on Android Arm 64-bit. This omission has been
4542 fixed.
4543
4544 *Matthias St. Pierre*
4545
4546### Changes between 1.0.2q and 1.0.2r [26 Feb 2019]
4547
4548 * 0-byte record padding oracle
4549
4550 If an application encounters a fatal protocol error and then calls
4551 SSL_shutdown() twice (once to send a close_notify, and once to receive one)
4552 then OpenSSL can respond differently to the calling application if a 0 byte
4553 record is received with invalid padding compared to if a 0 byte record is
4554 received with an invalid MAC. If the application then behaves differently
4555 based on that in a way that is detectable to the remote peer, then this
4556 amounts to a padding oracle that could be used to decrypt data.
4557
4558 In order for this to be exploitable "non-stitched" ciphersuites must be in
4559 use. Stitched ciphersuites are optimised implementations of certain
4560 commonly used ciphersuites. Also the application must call SSL_shutdown()
4561 twice even if a protocol error has occurred (applications should not do
4562 this but some do anyway).
4563
4564 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod
4565 Aviram, with additional investigation by Steven Collison and Andrew
4566 Hourselt. It was reported to OpenSSL on 10th December 2018.
4567 ([CVE-2019-1559])
4568
4569 *Matt Caswell*
4570
4571 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0().
4572
4573 *Richard Levitte*
4574
4575### Changes between 1.0.2p and 1.0.2q [20 Nov 2018]
4576
4577 * Microarchitecture timing vulnerability in ECC scalar multiplication
4578
4579 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been
4580 shown to be vulnerable to a microarchitecture timing side channel attack.
4581 An attacker with sufficient access to mount local timing attacks during
4582 ECDSA signature generation could recover the private key.
4583
4584 This issue was reported to OpenSSL on 26th October 2018 by Alejandro
4585 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and
4586 Nicola Tuveri.
4587 ([CVE-2018-5407])
4588
4589 *Billy Brumley*
4590
4591 * Timing vulnerability in DSA signature generation
4592
4593 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a
4594 timing side channel attack. An attacker could use variations in the signing
4595 algorithm to recover the private key.
4596
4597 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser.
4598 ([CVE-2018-0734])
4599
4600 *Paul Dale*
4601
4602 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object
4603 Module, accidentally introduced while backporting security fixes from the
4604 development branch and hindering the use of ECC in FIPS mode.
4605
4606 *Nicola Tuveri*
4607
4608### Changes between 1.0.2o and 1.0.2p [14 Aug 2018]
4609
4610 * Client DoS due to large DH parameter
4611
4612 During key agreement in a TLS handshake using a DH(E) based ciphersuite a
4613 malicious server can send a very large prime value to the client. This will
4614 cause the client to spend an unreasonably long period of time generating a
4615 key for this prime resulting in a hang until the client has finished. This
4616 could be exploited in a Denial Of Service attack.
4617
4618 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken
4619 ([CVE-2018-0732])
4620
4621 *Guido Vranken*
4622
4623 * Cache timing vulnerability in RSA Key Generation
4624
4625 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to
4626 a cache timing side channel attack. An attacker with sufficient access to
4627 mount cache timing attacks during the RSA key generation process could
4628 recover the private key.
4629
4630 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera
4631 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia.
4632 ([CVE-2018-0737])
4633
4634 *Billy Brumley*
4635
4636 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str
4637 parameter is no longer accepted, as it leads to a corrupt table. NULL
4638 pem_str is reserved for alias entries only.
4639
4640 *Richard Levitte*
4641
4642 * Revert blinding in ECDSA sign and instead make problematic addition
4643 length-invariant. Switch even to fixed-length Montgomery multiplication.
4644
4645 *Andy Polyakov*
4646
4647 * Change generating and checking of primes so that the error rate of not
4648 being prime depends on the intended use based on the size of the input.
4649 For larger primes this will result in more rounds of Miller-Rabin.
4650 The maximal error rate for primes with more than 1080 bits is lowered
4651 to 2^-128.
4652
4653 *Kurt Roeckx, Annie Yousar*
4654
4655 * Increase the number of Miller-Rabin rounds for DSA key generating to 64.
4656
4657 *Kurt Roeckx*
4658
4659 * Add blinding to ECDSA and DSA signatures to protect against side channel
4660 attacks discovered by Keegan Ryan (NCC Group).
4661
4662 *Matt Caswell*
4663
4664 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we
4665 now allow empty (zero character) pass phrases.
4666
4667 *Richard Levitte*
4668
4669 * Certificate time validation (X509_cmp_time) enforces stricter
4670 compliance with RFC 5280. Fractional seconds and timezone offsets
4671 are no longer allowed.
4672
4673 *Emilia Käsper*
4674
4675### Changes between 1.0.2n and 1.0.2o [27 Mar 2018]
4676
4677 * Constructed ASN.1 types with a recursive definition could exceed the stack
4678
4679 Constructed ASN.1 types with a recursive definition (such as can be found
4680 in PKCS7) could eventually exceed the stack given malicious input with
4681 excessive recursion. This could result in a Denial Of Service attack. There
4682 are no such structures used within SSL/TLS that come from untrusted sources
4683 so this is considered safe.
4684
4685 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz
4686 project.
4687 ([CVE-2018-0739])
4688
4689 *Matt Caswell*
4690
4691### Changes between 1.0.2m and 1.0.2n [7 Dec 2017]
4692
4693 * Read/write after SSL object in error state
4694
4695 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state"
4696 mechanism. The intent was that if a fatal error occurred during a handshake
4697 then OpenSSL would move into the error state and would immediately fail if
4698 you attempted to continue the handshake. This works as designed for the
4699 explicit handshake functions (SSL_do_handshake(), SSL_accept() and
4700 SSL_connect()), however due to a bug it does not work correctly if
4701 SSL_read() or SSL_write() is called directly. In that scenario, if the
4702 handshake fails then a fatal error will be returned in the initial function
4703 call. If SSL_read()/SSL_write() is subsequently called by the application
4704 for the same SSL object then it will succeed and the data is passed without
4705 being decrypted/encrypted directly from the SSL/TLS record layer.
4706
4707 In order to exploit this issue an application bug would have to be present
4708 that resulted in a call to SSL_read()/SSL_write() being issued after having
4709 already received a fatal error.
4710
4711 This issue was reported to OpenSSL by David Benjamin (Google).
4712 ([CVE-2017-3737])
4713
4714 *Matt Caswell*
4715
4716 * rsaz_1024_mul_avx2 overflow bug on x86_64
4717
4718 There is an overflow bug in the AVX2 Montgomery multiplication procedure
4719 used in exponentiation with 1024-bit moduli. No EC algorithms are affected.
4720 Analysis suggests that attacks against RSA and DSA as a result of this
4721 defect would be very difficult to perform and are not believed likely.
4722 Attacks against DH1024 are considered just feasible, because most of the
4723 work necessary to deduce information about a private key may be performed
4724 offline. The amount of resources required for such an attack would be
4725 significant. However, for an attack on TLS to be meaningful, the server
4726 would have to share the DH1024 private key among multiple clients, which is
4727 no longer an option since CVE-2016-0701.
4728
4729 This only affects processors that support the AVX2 but not ADX extensions
4730 like Intel Haswell (4th generation).
4731
4732 This issue was reported to OpenSSL by David Benjamin (Google). The issue
4733 was originally found via the OSS-Fuzz project.
4734 ([CVE-2017-3738])
4735
4736 *Andy Polyakov*
4737
4738### Changes between 1.0.2l and 1.0.2m [2 Nov 2017]
4739
4740 * bn_sqrx8x_internal carry bug on x86_64
4741
4742 There is a carry propagating bug in the x86_64 Montgomery squaring
4743 procedure. No EC algorithms are affected. Analysis suggests that attacks
4744 against RSA and DSA as a result of this defect would be very difficult to
4745 perform and are not believed likely. Attacks against DH are considered just
4746 feasible (although very difficult) because most of the work necessary to
4747 deduce information about a private key may be performed offline. The amount
4748 of resources required for such an attack would be very significant and
4749 likely only accessible to a limited number of attackers. An attacker would
4750 additionally need online access to an unpatched system using the target
4751 private key in a scenario with persistent DH parameters and a private
4752 key that is shared between multiple clients.
4753
4754 This only affects processors that support the BMI1, BMI2 and ADX extensions
4755 like Intel Broadwell (5th generation) and later or AMD Ryzen.
4756
4757 This issue was reported to OpenSSL by the OSS-Fuzz project.
4758 ([CVE-2017-3736])
4759
4760 *Andy Polyakov*
4761
4762 * Malformed X.509 IPAddressFamily could cause OOB read
4763
4764 If an X.509 certificate has a malformed IPAddressFamily extension,
4765 OpenSSL could do a one-byte buffer overread. The most likely result
4766 would be an erroneous display of the certificate in text format.
4767
4768 This issue was reported to OpenSSL by the OSS-Fuzz project.
4769
4770 *Rich Salz*
4771
4772### Changes between 1.0.2k and 1.0.2l [25 May 2017]
4773
4774 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target
4775 platform rather than 'mingw'.
4776
4777 *Richard Levitte*
4778
4779### Changes between 1.0.2j and 1.0.2k [26 Jan 2017]
4780
4781 * Truncated packet could crash via OOB read
4782
4783 If one side of an SSL/TLS path is running on a 32-bit host and a specific
4784 cipher is being used, then a truncated packet can cause that host to
4785 perform an out-of-bounds read, usually resulting in a crash.
4786
4787 This issue was reported to OpenSSL by Robert Święcki of Google.
4788 ([CVE-2017-3731])
4789
4790 *Andy Polyakov*
4791
4792 * BN_mod_exp may produce incorrect results on x86_64
4793
4794 There is a carry propagating bug in the x86_64 Montgomery squaring
4795 procedure. No EC algorithms are affected. Analysis suggests that attacks
4796 against RSA and DSA as a result of this defect would be very difficult to
4797 perform and are not believed likely. Attacks against DH are considered just
4798 feasible (although very difficult) because most of the work necessary to
4799 deduce information about a private key may be performed offline. The amount
4800 of resources required for such an attack would be very significant and
4801 likely only accessible to a limited number of attackers. An attacker would
4802 additionally need online access to an unpatched system using the target
4803 private key in a scenario with persistent DH parameters and a private
4804 key that is shared between multiple clients. For example this can occur by
4805 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very
4806 similar to CVE-2015-3193 but must be treated as a separate problem.
4807
4808 This issue was reported to OpenSSL by the OSS-Fuzz project.
4809 ([CVE-2017-3732])
4810
4811 *Andy Polyakov*
4812
4813 * Montgomery multiplication may produce incorrect results
4814
4815 There is a carry propagating bug in the Broadwell-specific Montgomery
4816 multiplication procedure that handles input lengths divisible by, but
4817 longer than 256 bits. Analysis suggests that attacks against RSA, DSA
4818 and DH private keys are impossible. This is because the subroutine in
4819 question is not used in operations with the private key itself and an input
4820 of the attacker's direct choice. Otherwise the bug can manifest itself as
4821 transient authentication and key negotiation failures or reproducible
4822 erroneous outcome of public-key operations with specially crafted input.
4823 Among EC algorithms only Brainpool P-512 curves are affected and one
4824 presumably can attack ECDH key negotiation. Impact was not analyzed in
4825 detail, because pre-requisites for attack are considered unlikely. Namely
4826 multiple clients have to choose the curve in question and the server has to
4827 share the private key among them, neither of which is default behaviour.
4828 Even then only clients that chose the curve will be affected.
4829
4830 This issue was publicly reported as transient failures and was not
4831 initially recognized as a security issue. Thanks to Richard Morgan for
4832 providing reproducible case.
4833 ([CVE-2016-7055])
4834
4835 *Andy Polyakov*
4836
4837 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0
4838 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to
4839 prevent issues where no progress is being made and the peer continually
4840 sends unrecognised record types, using up resources processing them.
4841
4842 *Matt Caswell*
4843
4844### Changes between 1.0.2i and 1.0.2j [26 Sep 2016]
4845
4846 * Missing CRL sanity check
4847
4848 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0
4849 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use
4850 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception.
4851
4852 This issue only affects the OpenSSL 1.0.2i
4853 ([CVE-2016-7052])
4854
4855 *Matt Caswell*
4856
4857### Changes between 1.0.2h and 1.0.2i [22 Sep 2016]
4858
4859 * OCSP Status Request extension unbounded memory growth
4860
4861 A malicious client can send an excessively large OCSP Status Request
4862 extension. If that client continually requests renegotiation, sending a
4863 large OCSP Status Request extension each time, then there will be unbounded
4864 memory growth on the server. This will eventually lead to a Denial Of
4865 Service attack through memory exhaustion. Servers with a default
4866 configuration are vulnerable even if they do not support OCSP. Builds using
4867 the "no-ocsp" build time option are not affected.
4868
4869 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
4870 ([CVE-2016-6304])
4871
4872 *Matt Caswell*
4873
4874 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from
4875 HIGH to MEDIUM.
4876
4877 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan
4878 Leurent (INRIA)
4879 ([CVE-2016-2183])
4880
4881 *Rich Salz*
4882
4883 * OOB write in MDC2_Update()
4884
4885 An overflow can occur in MDC2_Update() either if called directly or
4886 through the EVP_DigestUpdate() function using MDC2. If an attacker
4887 is able to supply very large amounts of input data after a previous
4888 call to EVP_EncryptUpdate() with a partial block then a length check
4889 can overflow resulting in a heap corruption.
4890
4891 The amount of data needed is comparable to SIZE_MAX which is impractical
4892 on most platforms.
4893
4894 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
4895 ([CVE-2016-6303])
4896
4897 *Stephen Henson*
4898
4899 * Malformed SHA512 ticket DoS
4900
4901 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a
4902 DoS attack where a malformed ticket will result in an OOB read which will
4903 ultimately crash.
4904
4905 The use of SHA512 in TLS session tickets is comparatively rare as it requires
4906 a custom server callback and ticket lookup mechanism.
4907
4908 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
4909 ([CVE-2016-6302])
4910
4911 *Stephen Henson*
4912
4913 * OOB write in BN_bn2dec()
4914
4915 The function BN_bn2dec() does not check the return value of BN_div_word().
4916 This can cause an OOB write if an application uses this function with an
4917 overly large BIGNUM. This could be a problem if an overly large certificate
4918 or CRL is printed out from an untrusted source. TLS is not affected because
4919 record limits will reject an oversized certificate before it is parsed.
4920
4921 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
4922 ([CVE-2016-2182])
4923
4924 *Stephen Henson*
4925
4926 * OOB read in TS_OBJ_print_bio()
4927
4928 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is
4929 the total length the OID text representation would use and not the amount
4930 of data written. This will result in OOB reads when large OIDs are
4931 presented.
4932
4933 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
4934 ([CVE-2016-2180])
4935
4936 *Stephen Henson*
4937
4938 * Pointer arithmetic undefined behaviour
4939
4940 Avoid some undefined pointer arithmetic
4941
4942 A common idiom in the codebase is to check limits in the following manner:
4943 "p + len > limit"
4944
4945 Where "p" points to some malloc'd data of SIZE bytes and
4946 limit == p + SIZE
4947
4948 "len" here could be from some externally supplied data (e.g. from a TLS
4949 message).
4950
4951 The rules of C pointer arithmetic are such that "p + len" is only well
4952 defined where len <= SIZE. Therefore the above idiom is actually
4953 undefined behaviour.
4954
4955 For example this could cause problems if some malloc implementation
4956 provides an address for "p" such that "p + len" actually overflows for
4957 values of len that are too big and therefore p + len < limit.
4958
4959 This issue was reported to OpenSSL by Guido Vranken
4960 ([CVE-2016-2177])
4961
4962 *Matt Caswell*
4963
4964 * Constant time flag not preserved in DSA signing
4965
4966 Operations in the DSA signing algorithm should run in constant time in
4967 order to avoid side channel attacks. A flaw in the OpenSSL DSA
4968 implementation means that a non-constant time codepath is followed for
4969 certain operations. This has been demonstrated through a cache-timing
4970 attack to be sufficient for an attacker to recover the private DSA key.
4971
4972 This issue was reported by César Pereida (Aalto University), Billy Brumley
4973 (Tampere University of Technology), and Yuval Yarom (The University of
4974 Adelaide and NICTA).
4975 ([CVE-2016-2178])
4976
4977 *César Pereida*
4978
4979 * DTLS buffered message DoS
4980
4981 In a DTLS connection where handshake messages are delivered out-of-order
4982 those messages that OpenSSL is not yet ready to process will be buffered
4983 for later use. Under certain circumstances, a flaw in the logic means that
4984 those messages do not get removed from the buffer even though the handshake
4985 has been completed. An attacker could force up to approx. 15 messages to
4986 remain in the buffer when they are no longer required. These messages will
4987 be cleared when the DTLS connection is closed. The default maximum size for
4988 a message is 100k. Therefore the attacker could force an additional 1500k
4989 to be consumed per connection. By opening many simulataneous connections an
4990 attacker could cause a DoS attack through memory exhaustion.
4991
4992 This issue was reported to OpenSSL by Quan Luo.
4993 ([CVE-2016-2179])
4994
4995 *Matt Caswell*
4996
4997 * DTLS replay protection DoS
4998
4999 A flaw in the DTLS replay attack protection mechanism means that records
5000 that arrive for future epochs update the replay protection "window" before
5001 the MAC for the record has been validated. This could be exploited by an
5002 attacker by sending a record for the next epoch (which does not have to
5003 decrypt or have a valid MAC), with a very large sequence number. This means
5004 that all subsequent legitimate packets are dropped causing a denial of
5005 service for a specific DTLS connection.
5006
5007 This issue was reported to OpenSSL by the OCAP audit team.
5008 ([CVE-2016-2181])
5009
5010 *Matt Caswell*
5011
5012 * Certificate message OOB reads
5013
5014 In OpenSSL 1.0.2 and earlier some missing message length checks can result
5015 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a
5016 theoretical DoS risk but this has not been observed in practice on common
5017 platforms.
5018
5019 The messages affected are client certificate, client certificate request
5020 and server certificate. As a result the attack can only be performed
5021 against a client or a server which enables client authentication.
5022
5023 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
5024 ([CVE-2016-6306])
5025
5026 *Stephen Henson*
5027
5028### Changes between 1.0.2g and 1.0.2h [3 May 2016]
5029
5030 * Prevent padding oracle in AES-NI CBC MAC check
5031
5032 A MITM attacker can use a padding oracle attack to decrypt traffic
5033 when the connection uses an AES CBC cipher and the server support
5034 AES-NI.
5035
5036 This issue was introduced as part of the fix for Lucky 13 padding
5037 attack ([CVE-2013-0169]). The padding check was rewritten to be in
5038 constant time by making sure that always the same bytes are read and
5039 compared against either the MAC or padding bytes. But it no longer
5040 checked that there was enough data to have both the MAC and padding
5041 bytes.
5042
5043 This issue was reported by Juraj Somorovsky using TLS-Attacker.
5044
5045 *Kurt Roeckx*
5046
5047 * Fix EVP_EncodeUpdate overflow
5048
5049 An overflow can occur in the EVP_EncodeUpdate() function which is used for
5050 Base64 encoding of binary data. If an attacker is able to supply very large
5051 amounts of input data then a length check can overflow resulting in a heap
5052 corruption.
5053
5054 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by
5055 the `PEM_write_bio*` family of functions. These are mainly used within the
5056 OpenSSL command line applications, so any application which processes data
5057 from an untrusted source and outputs it as a PEM file should be considered
5058 vulnerable to this issue. User applications that call these APIs directly
5059 with large amounts of untrusted data may also be vulnerable.
5060
5061 This issue was reported by Guido Vranken.
5062 ([CVE-2016-2105])
5063
5064 *Matt Caswell*
5065
5066 * Fix EVP_EncryptUpdate overflow
5067
5068 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker
5069 is able to supply very large amounts of input data after a previous call to
5070 EVP_EncryptUpdate() with a partial block then a length check can overflow
5071 resulting in a heap corruption. Following an analysis of all OpenSSL
5072 internal usage of the EVP_EncryptUpdate() function all usage is one of two
5073 forms. The first form is where the EVP_EncryptUpdate() call is known to be
5074 the first called function after an EVP_EncryptInit(), and therefore that
5075 specific call must be safe. The second form is where the length passed to
5076 EVP_EncryptUpdate() can be seen from the code to be some small value and
5077 therefore there is no possibility of an overflow. Since all instances are
5078 one of these two forms, it is believed that there can be no overflows in
5079 internal code due to this problem. It should be noted that
5080 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths.
5081 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances
5082 of these calls have also been analysed too and it is believed there are no
5083 instances in internal usage where an overflow could occur.
5084
5085 This issue was reported by Guido Vranken.
5086 ([CVE-2016-2106])
5087
5088 *Matt Caswell*
5089
5090 * Prevent ASN.1 BIO excessive memory allocation
5091
5092 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio()
5093 a short invalid encoding can cause allocation of large amounts of memory
5094 potentially consuming excessive resources or exhausting memory.
5095
5096 Any application parsing untrusted data through d2i BIO functions is
5097 affected. The memory based functions such as d2i_X509() are *not* affected.
5098 Since the memory based functions are used by the TLS library, TLS
5099 applications are not affected.
5100
5101 This issue was reported by Brian Carpenter.
5102 ([CVE-2016-2109])
5103
5104 *Stephen Henson*
5105
5106 * EBCDIC overread
5107
5108 ASN1 Strings that are over 1024 bytes can cause an overread in applications
5109 using the X509_NAME_oneline() function on EBCDIC systems. This could result
5110 in arbitrary stack data being returned in the buffer.
5111
5112 This issue was reported by Guido Vranken.
5113 ([CVE-2016-2176])
5114
5115 *Matt Caswell*
5116
5117 * Modify behavior of ALPN to invoke callback after SNI/servername
5118 callback, such that updates to the SSL_CTX affect ALPN.
5119
5120 *Todd Short*
5121
5122 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the
5123 default.
5124
5125 *Kurt Roeckx*
5126
5127 * Only remove the SSLv2 methods with the no-ssl2-method option. When the
5128 methods are enabled and ssl2 is disabled the methods return NULL.
5129
5130 *Kurt Roeckx*
5131
5132### Changes between 1.0.2f and 1.0.2g [1 Mar 2016]
5133
5134* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
5135 Builds that are not configured with "enable-weak-ssl-ciphers" will not
5136 provide any "EXPORT" or "LOW" strength ciphers.
5137
5138 *Viktor Dukhovni*
5139
5140* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2
5141 is by default disabled at build-time. Builds that are not configured with
5142 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used,
5143 users who want to negotiate SSLv2 via the version-flexible SSLv23_method()
5144 will need to explicitly call either of:
5145
5146 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2);
5147 or
5148 SSL_clear_options(ssl, SSL_OP_NO_SSLv2);
5149
5150 as appropriate. Even if either of those is used, or the application
5151 explicitly uses the version-specific SSLv2_method() or its client and
5152 server variants, SSLv2 ciphers vulnerable to exhaustive search key
5153 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT
5154 ciphers, and SSLv2 56-bit DES are no longer available.
5155 ([CVE-2016-0800])
5156
5157 *Viktor Dukhovni*
5158
5159 * Fix a double-free in DSA code
5160
5161 A double free bug was discovered when OpenSSL parses malformed DSA private
5162 keys and could lead to a DoS attack or memory corruption for applications
5163 that receive DSA private keys from untrusted sources. This scenario is
5164 considered rare.
5165
5166 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using
5167 libFuzzer.
5168 ([CVE-2016-0705])
5169
5170 *Stephen Henson*
5171
5172 * Disable SRP fake user seed to address a server memory leak.
5173
5174 Add a new method SRP_VBASE_get1_by_user that handles the seed properly.
5175
5176 SRP_VBASE_get_by_user had inconsistent memory management behaviour.
5177 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user
5178 was changed to ignore the "fake user" SRP seed, even if the seed
5179 is configured.
5180
5181 Users should use SRP_VBASE_get1_by_user instead. Note that in
5182 SRP_VBASE_get1_by_user, caller must free the returned value. Note
5183 also that even though configuring the SRP seed attempts to hide
5184 invalid usernames by continuing the handshake with fake
5185 credentials, this behaviour is not constant time and no strong
5186 guarantees are made that the handshake is indistinguishable from
5187 that of a valid user.
5188 ([CVE-2016-0798])
5189
5190 *Emilia Käsper*
5191
5192 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
5193
5194 In the BN_hex2bn function the number of hex digits is calculated using an
5195 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For
5196 large values of `i` this can result in `bn_expand` not allocating any
5197 memory because `i * 4` is negative. This can leave the internal BIGNUM data
5198 field as NULL leading to a subsequent NULL ptr deref. For very large values
5199 of `i`, the calculation `i * 4` could be a positive value smaller than `i`.
5200 In this case memory is allocated to the internal BIGNUM data field, but it
5201 is insufficiently sized leading to heap corruption. A similar issue exists
5202 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn
5203 is ever called by user applications with very large untrusted hex/dec data.
5204 This is anticipated to be a rare occurrence.
5205
5206 All OpenSSL internal usage of these functions use data that is not expected
5207 to be untrusted, e.g. config file data or application command line
5208 arguments. If user developed applications generate config file data based
5209 on untrusted data then it is possible that this could also lead to security
5210 consequences. This is also anticipated to be rare.
5211
5212 This issue was reported to OpenSSL by Guido Vranken.
5213 ([CVE-2016-0797])
5214
5215 *Matt Caswell*
5216
5217 * Fix memory issues in `BIO_*printf` functions
5218
5219 The internal `fmtstr` function used in processing a "%s" format string in
5220 the `BIO_*printf` functions could overflow while calculating the length of a
5221 string and cause an OOB read when printing very long strings.
5222
5223 Additionally the internal `doapr_outch` function can attempt to write to an
5224 OOB memory location (at an offset from the NULL pointer) in the event of a
5225 memory allocation failure. In 1.0.2 and below this could be caused where
5226 the size of a buffer to be allocated is greater than INT_MAX. E.g. this
5227 could be in processing a very long "%s" format string. Memory leaks can
5228 also occur.
5229
5230 The first issue may mask the second issue dependent on compiler behaviour.
5231 These problems could enable attacks where large amounts of untrusted data
5232 is passed to the `BIO_*printf` functions. If applications use these functions
5233 in this way then they could be vulnerable. OpenSSL itself uses these
5234 functions when printing out human-readable dumps of ASN.1 data. Therefore
5235 applications that print this data could be vulnerable if the data is from
5236 untrusted sources. OpenSSL command line applications could also be
5237 vulnerable where they print out ASN.1 data, or if untrusted data is passed
5238 as command line arguments.
5239
5240 Libssl is not considered directly vulnerable. Additionally certificates etc
5241 received via remote connections via libssl are also unlikely to be able to
5242 trigger these issues because of message size limits enforced within libssl.
5243
5244 This issue was reported to OpenSSL Guido Vranken.
5245 ([CVE-2016-0799])
5246
5247 *Matt Caswell*
5248
5249 * Side channel attack on modular exponentiation
5250
5251 A side-channel attack was found which makes use of cache-bank conflicts on
5252 the Intel Sandy-Bridge microarchitecture which could lead to the recovery
5253 of RSA keys. The ability to exploit this issue is limited as it relies on
5254 an attacker who has control of code in a thread running on the same
5255 hyper-threaded core as the victim thread which is performing decryptions.
5256
5257 This issue was reported to OpenSSL by Yuval Yarom, The University of
5258 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and
5259 Nadia Heninger, University of Pennsylvania with more information at
5260 <http://cachebleed.info>.
5261 ([CVE-2016-0702])
5262
5263 *Andy Polyakov*
5264
5265 * Change the `req` command to generate a 2048-bit RSA/DSA key by default,
5266 if no keysize is specified with default_bits. This fixes an
5267 omission in an earlier change that changed all RSA/DSA key generation
5268 commands to use 2048 bits by default.
5269
5270 *Emilia Käsper*
5271
5272### Changes between 1.0.2e and 1.0.2f [28 Jan 2016]
5273
5274 * DH small subgroups
5275
5276 Historically OpenSSL only ever generated DH parameters based on "safe"
5277 primes. More recently (in version 1.0.2) support was provided for
5278 generating X9.42 style parameter files such as those required for RFC 5114
5279 support. The primes used in such files may not be "safe". Where an
5280 application is using DH configured with parameters based on primes that are
5281 not "safe" then an attacker could use this fact to find a peer's private
5282 DH exponent. This attack requires that the attacker complete multiple
5283 handshakes in which the peer uses the same private DH exponent. For example
5284 this could be used to discover a TLS server's private DH exponent if it's
5285 reusing the private DH exponent or it's using a static DH ciphersuite.
5286
5287 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in
5288 TLS. It is not on by default. If the option is not set then the server
5289 reuses the same private DH exponent for the life of the server process and
5290 would be vulnerable to this attack. It is believed that many popular
5291 applications do set this option and would therefore not be at risk.
5292
5293 The fix for this issue adds an additional check where a "q" parameter is
5294 available (as is the case in X9.42 based parameters). This detects the
5295 only known attack, and is the only possible defense for static DH
5296 ciphersuites. This could have some performance impact.
5297
5298 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by
5299 default and cannot be disabled. This could have some performance impact.
5300
5301 This issue was reported to OpenSSL by Antonio Sanso (Adobe).
5302 ([CVE-2016-0701])
5303
5304 *Matt Caswell*
5305
5306 * SSLv2 doesn't block disabled ciphers
5307
5308 A malicious client can negotiate SSLv2 ciphers that have been disabled on
5309 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have
5310 been disabled, provided that the SSLv2 protocol was not also disabled via
5311 SSL_OP_NO_SSLv2.
5312
5313 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram
5314 and Sebastian Schinzel.
5315 ([CVE-2015-3197])
5316
5317 *Viktor Dukhovni*
5318
5319### Changes between 1.0.2d and 1.0.2e [3 Dec 2015]
5320
5321 * BN_mod_exp may produce incorrect results on x86_64
5322
5323 There is a carry propagating bug in the x86_64 Montgomery squaring
5324 procedure. No EC algorithms are affected. Analysis suggests that attacks
5325 against RSA and DSA as a result of this defect would be very difficult to
5326 perform and are not believed likely. Attacks against DH are considered just
5327 feasible (although very difficult) because most of the work necessary to
5328 deduce information about a private key may be performed offline. The amount
5329 of resources required for such an attack would be very significant and
5330 likely only accessible to a limited number of attackers. An attacker would
5331 additionally need online access to an unpatched system using the target
5332 private key in a scenario with persistent DH parameters and a private
5333 key that is shared between multiple clients. For example this can occur by
5334 default in OpenSSL DHE based SSL/TLS ciphersuites.
5335
5336 This issue was reported to OpenSSL by Hanno Böck.
5337 ([CVE-2015-3193])
5338
5339 *Andy Polyakov*
5340
5341 * Certificate verify crash with missing PSS parameter
5342
5343 The signature verification routines will crash with a NULL pointer
5344 dereference if presented with an ASN.1 signature using the RSA PSS
5345 algorithm and absent mask generation function parameter. Since these
5346 routines are used to verify certificate signature algorithms this can be
5347 used to crash any certificate verification operation and exploited in a
5348 DoS attack. Any application which performs certificate verification is
5349 vulnerable including OpenSSL clients and servers which enable client
5350 authentication.
5351
5352 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
5353 ([CVE-2015-3194])
5354
5355 *Stephen Henson*
5356
5357 * X509_ATTRIBUTE memory leak
5358
5359 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
5360 memory. This structure is used by the PKCS#7 and CMS routines so any
5361 application which reads PKCS#7 or CMS data from untrusted sources is
5362 affected. SSL/TLS is not affected.
5363
5364 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
5365 libFuzzer.
5366 ([CVE-2015-3195])
5367
5368 *Stephen Henson*
5369
5370 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
5371 This changes the decoding behaviour for some invalid messages,
5372 though the change is mostly in the more lenient direction, and
5373 legacy behaviour is preserved as much as possible.
5374
5375 *Emilia Käsper*
5376
5377 * In DSA_generate_parameters_ex, if the provided seed is too short,
5378 return an error
5379
5380 *Rich Salz and Ismo Puustinen <[email protected]>*
5381
5382### Changes between 1.0.2c and 1.0.2d [9 Jul 2015]
5383
5384 * Alternate chains certificate forgery
5385
5386 During certificate verification, OpenSSL will attempt to find an
5387 alternative certificate chain if the first attempt to build such a chain
5388 fails. An error in the implementation of this logic can mean that an
5389 attacker could cause certain checks on untrusted certificates to be
5390 bypassed, such as the CA flag, enabling them to use a valid leaf
5391 certificate to act as a CA and "issue" an invalid certificate.
5392
5393 This issue was reported to OpenSSL by Adam Langley/David Benjamin
5394 (Google/BoringSSL).
5395
5396 *Matt Caswell*
5397
5398### Changes between 1.0.2b and 1.0.2c [12 Jun 2015]
5399
5400 * Fix HMAC ABI incompatibility. The previous version introduced an ABI
5401 incompatibility in the handling of HMAC. The previous ABI has now been
5402 restored.
5403
5404 *Matt Caswell*
5405
5406### Changes between 1.0.2a and 1.0.2b [11 Jun 2015]
5407
5408 * Malformed ECParameters causes infinite loop
5409
5410 When processing an ECParameters structure OpenSSL enters an infinite loop
5411 if the curve specified is over a specially malformed binary polynomial
5412 field.
5413
5414 This can be used to perform denial of service against any
5415 system which processes public keys, certificate requests or
5416 certificates. This includes TLS clients and TLS servers with
5417 client authentication enabled.
5418
5419 This issue was reported to OpenSSL by Joseph Barr-Pixton.
5420 ([CVE-2015-1788])
5421
5422 *Andy Polyakov*
5423
5424 * Exploitable out-of-bounds read in X509_cmp_time
5425
5426 X509_cmp_time does not properly check the length of the ASN1_TIME
5427 string and can read a few bytes out of bounds. In addition,
5428 X509_cmp_time accepts an arbitrary number of fractional seconds in the
5429 time string.
5430
5431 An attacker can use this to craft malformed certificates and CRLs of
5432 various sizes and potentially cause a segmentation fault, resulting in
5433 a DoS on applications that verify certificates or CRLs. TLS clients
5434 that verify CRLs are affected. TLS clients and servers with client
5435 authentication enabled may be affected if they use custom verification
5436 callbacks.
5437
5438 This issue was reported to OpenSSL by Robert Swiecki (Google), and
5439 independently by Hanno Böck.
5440 ([CVE-2015-1789])
5441
5442 *Emilia Käsper*
5443
5444 * PKCS7 crash with missing EnvelopedContent
5445
5446 The PKCS#7 parsing code does not handle missing inner EncryptedContent
5447 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
5448 with missing content and trigger a NULL pointer dereference on parsing.
5449
5450 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
5451 structures from untrusted sources are affected. OpenSSL clients and
5452 servers are not affected.
5453
5454 This issue was reported to OpenSSL by Michal Zalewski (Google).
5455 ([CVE-2015-1790])
5456
5457 *Emilia Käsper*
5458
5459 * CMS verify infinite loop with unknown hash function
5460
5461 When verifying a signedData message the CMS code can enter an infinite loop
5462 if presented with an unknown hash function OID. This can be used to perform
5463 denial of service against any system which verifies signedData messages using
5464 the CMS code.
5465 This issue was reported to OpenSSL by Johannes Bauer.
5466 ([CVE-2015-1792])
5467
5468 *Stephen Henson*
5469
5470 * Race condition handling NewSessionTicket
5471
5472 If a NewSessionTicket is received by a multi-threaded client when attempting to
5473 reuse a previous ticket then a race condition can occur potentially leading to
5474 a double free of the ticket data.
5475 ([CVE-2015-1791])
5476
5477 *Matt Caswell*
5478
5479 * Only support 256-bit or stronger elliptic curves with the
5480 'ecdh_auto' setting (server) or by default (client). Of supported
5481 curves, prefer P-256 (both).
5482
5483 *Emilia Kasper*
5484
5485### Changes between 1.0.2 and 1.0.2a [19 Mar 2015]
5486
5487 * ClientHello sigalgs DoS fix
5488
5489 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an
5490 invalid signature algorithms extension a NULL pointer dereference will
5491 occur. This can be exploited in a DoS attack against the server.
5492
5493 This issue was was reported to OpenSSL by David Ramos of Stanford
5494 University.
5495 ([CVE-2015-0291])
5496
5497 *Stephen Henson and Matt Caswell*
5498
5499 * Multiblock corrupted pointer fix
5500
5501 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This
5502 feature only applies on 64 bit x86 architecture platforms that support AES
5503 NI instructions. A defect in the implementation of "multiblock" can cause
5504 OpenSSL's internal write buffer to become incorrectly set to NULL when
5505 using non-blocking IO. Typically, when the user application is using a
5506 socket BIO for writing, this will only result in a failed connection.
5507 However if some other BIO is used then it is likely that a segmentation
5508 fault will be triggered, thus enabling a potential DoS attack.
5509
5510 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller.
5511 ([CVE-2015-0290])
5512
5513 *Matt Caswell*
5514
5515 * Segmentation fault in DTLSv1_listen fix
5516
5517 The DTLSv1_listen function is intended to be stateless and processes the
5518 initial ClientHello from many peers. It is common for user code to loop
5519 over the call to DTLSv1_listen until a valid ClientHello is received with
5520 an associated cookie. A defect in the implementation of DTLSv1_listen means
5521 that state is preserved in the SSL object from one invocation to the next
5522 that can lead to a segmentation fault. Errors processing the initial
5523 ClientHello can trigger this scenario. An example of such an error could be
5524 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only
5525 server.
5526
5527 This issue was reported to OpenSSL by Per Allansson.
5528 ([CVE-2015-0207])
5529
5530 *Matt Caswell*
5531
5532 * Segmentation fault in ASN1_TYPE_cmp fix
5533
5534 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
5535 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
5536 certificate signature algorithm consistency this can be used to crash any
5537 certificate verification operation and exploited in a DoS attack. Any
5538 application which performs certificate verification is vulnerable including
5539 OpenSSL clients and servers which enable client authentication.
5540 ([CVE-2015-0286])
5541
5542 *Stephen Henson*
5543
5544 * Segmentation fault for invalid PSS parameters fix
5545
5546 The signature verification routines will crash with a NULL pointer
5547 dereference if presented with an ASN.1 signature using the RSA PSS
5548 algorithm and invalid parameters. Since these routines are used to verify
5549 certificate signature algorithms this can be used to crash any
5550 certificate verification operation and exploited in a DoS attack. Any
5551 application which performs certificate verification is vulnerable including
5552 OpenSSL clients and servers which enable client authentication.
5553
5554 This issue was was reported to OpenSSL by Brian Carpenter.
5555 ([CVE-2015-0208])
5556
5557 *Stephen Henson*
5558
5559 * ASN.1 structure reuse memory corruption fix
5560
5561 Reusing a structure in ASN.1 parsing may allow an attacker to cause
5562 memory corruption via an invalid write. Such reuse is and has been
5563 strongly discouraged and is believed to be rare.
5564
5565 Applications that parse structures containing CHOICE or ANY DEFINED BY
5566 components may be affected. Certificate parsing (d2i_X509 and related
5567 functions) are however not affected. OpenSSL clients and servers are
5568 not affected.
5569 ([CVE-2015-0287])
5570
5571 *Stephen Henson*
5572
5573 * PKCS7 NULL pointer dereferences fix
5574
5575 The PKCS#7 parsing code does not handle missing outer ContentInfo
5576 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
5577 missing content and trigger a NULL pointer dereference on parsing.
5578
5579 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
5580 otherwise parse PKCS#7 structures from untrusted sources are
5581 affected. OpenSSL clients and servers are not affected.
5582
5583 This issue was reported to OpenSSL by Michal Zalewski (Google).
5584 ([CVE-2015-0289])
5585
5586 *Emilia Käsper*
5587
5588 * DoS via reachable assert in SSLv2 servers fix
5589
5590 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
5591 servers that both support SSLv2 and enable export cipher suites by sending
5592 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
5593
5594 This issue was discovered by Sean Burford (Google) and Emilia Käsper
5595 (OpenSSL development team).
5596 ([CVE-2015-0293])
5597
5598 *Emilia Käsper*
5599
5600 * Empty CKE with client auth and DHE fix
5601
5602 If client auth is used then a server can seg fault in the event of a DHE
5603 ciphersuite being selected and a zero length ClientKeyExchange message
5604 being sent by the client. This could be exploited in a DoS attack.
5605 ([CVE-2015-1787])
5606
5607 *Matt Caswell*
5608
5609 * Handshake with unseeded PRNG fix
5610
5611 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake
5612 with an unseeded PRNG. The conditions are:
5613 - The client is on a platform where the PRNG has not been seeded
5614 automatically, and the user has not seeded manually
5615 - A protocol specific client method version has been used (i.e. not
5616 SSL_client_methodv23)
5617 - A ciphersuite is used that does not require additional random data from
5618 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA).
5619
5620 If the handshake succeeds then the client random that has been used will
5621 have been generated from a PRNG with insufficient entropy and therefore the
5622 output may be predictable.
5623
5624 For example using the following command with an unseeded openssl will
5625 succeed on an unpatched platform:
5626
5627 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA
5628 ([CVE-2015-0285])
5629
5630 *Matt Caswell*
5631
5632 * Use After Free following d2i_ECPrivatekey error fix
5633
5634 A malformed EC private key file consumed via the d2i_ECPrivateKey function
5635 could cause a use after free condition. This, in turn, could cause a double
5636 free in several private key parsing functions (such as d2i_PrivateKey
5637 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
5638 for applications that receive EC private keys from untrusted
5639 sources. This scenario is considered rare.
5640
5641 This issue was discovered by the BoringSSL project and fixed in their
5642 commit 517073cd4b.
5643 ([CVE-2015-0209])
5644
5645 *Matt Caswell*
5646
5647 * X509_to_X509_REQ NULL pointer deref fix
5648
5649 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
5650 the certificate key is invalid. This function is rarely used in practice.
5651
5652 This issue was discovered by Brian Carpenter.
5653 ([CVE-2015-0288])
5654
5655 *Stephen Henson*
5656
5657 * Removed the export ciphers from the DEFAULT ciphers
5658
5659 *Kurt Roeckx*
5660
5661### Changes between 1.0.1l and 1.0.2 [22 Jan 2015]
5662
5663 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g.
5664 ARMv5 through ARMv8, as opposite to "locking" it to single one.
5665 So far those who have to target multiple platforms would compromise
5666 and argue that binary targeting say ARMv5 would still execute on
5667 ARMv8. "Universal" build resolves this compromise by providing
5668 near-optimal performance even on newer platforms.
5669
5670 *Andy Polyakov*
5671
5672 * Accelerated NIST P-256 elliptic curve implementation for x86_64
5673 (other platforms pending).
5674
5675 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov*
5676
5677 * Add support for the SignedCertificateTimestampList certificate and
5678 OCSP response extensions from RFC6962.
5679
5680 *Rob Stradling*
5681
5682 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
5683 for corner cases. (Certain input points at infinity could lead to
5684 bogus results, with non-infinity inputs mapped to infinity too.)
5685
5686 *Bodo Moeller*
5687
5688 * Initial support for PowerISA 2.0.7, first implemented in POWER8.
5689 This covers AES, SHA256/512 and GHASH. "Initial" means that most
5690 common cases are optimized and there still is room for further
5691 improvements. Vector Permutation AES for Altivec is also added.
5692
5693 *Andy Polyakov*
5694
5695 * Add support for little-endian ppc64 Linux target.
5696
5697 *Marcelo Cerri (IBM)*
5698
5699 * Initial support for AMRv8 ISA crypto extensions. This covers AES,
5700 SHA1, SHA256 and GHASH. "Initial" means that most common cases
5701 are optimized and there still is room for further improvements.
5702 Both 32- and 64-bit modes are supported.
5703
5704 *Andy Polyakov, Ard Biesheuvel (Linaro)*
5705
5706 * Improved ARMv7 NEON support.
5707
5708 *Andy Polyakov*
5709
5710 * Support for SPARC Architecture 2011 crypto extensions, first
5711 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
5712 SHA256/512, MD5, GHASH and modular exponentiation.
5713
5714 *Andy Polyakov, David Miller*
5715
5716 * Accelerated modular exponentiation for Intel processors, a.k.a.
5717 RSAZ.
5718
5719 *Shay Gueron & Vlad Krasnov (Intel Corp)*
5720
5721 * Support for new and upcoming Intel processors, including AVX2,
5722 BMI and SHA ISA extensions. This includes additional "stitched"
5723 implementations, AESNI-SHA256 and GCM, and multi-buffer support
5724 for TLS encrypt.
5725
5726 This work was sponsored by Intel Corp.
5727
5728 *Andy Polyakov*
5729
5730 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
5731 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
5732 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
5733
5734 *Steve Henson*
5735
5736 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
5737 this fixes a limitation in previous versions of OpenSSL.
5738
5739 *Steve Henson*
5740
5741 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
5742 MGF1 digest and OAEP label.
5743
5744 *Steve Henson*
5745
5746 * Add EVP support for key wrapping algorithms, to avoid problems with
5747 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
5748 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
5749 algorithms and include tests cases.
5750
5751 *Steve Henson*
5752
5753 * Add functions to allocate and set the fields of an ECDSA_METHOD
5754 structure.
5755
5756 *Douglas E. Engert, Steve Henson*
5757
5758 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
5759 difference in days and seconds between two tm or ASN1_TIME structures.
5760
5761 *Steve Henson*
5762
5763 * Add -rev test option to s_server to just reverse order of characters
5764 received by client and send back to server. Also prints an abbreviated
5765 summary of the connection parameters.
5766
5767 *Steve Henson*
5768
5769 * New option -brief for s_client and s_server to print out a brief summary
5770 of connection parameters.
5771
5772 *Steve Henson*
5773
5774 * Add callbacks for arbitrary TLS extensions.
5775
5776 *Trevor Perrin <[email protected]> and Ben Laurie*
5777
5778 * New option -crl_download in several openssl utilities to download CRLs
5779 from CRLDP extension in certificates.
5780
5781 *Steve Henson*
5782
5783 * New options -CRL and -CRLform for s_client and s_server for CRLs.
5784
5785 *Steve Henson*
5786
5787 * New function X509_CRL_diff to generate a delta CRL from the difference
5788 of two full CRLs. Add support to "crl" utility.
5789
5790 *Steve Henson*
5791
5792 * New functions to set lookup_crls function and to retrieve
5793 X509_STORE from X509_STORE_CTX.
5794
5795 *Steve Henson*
5796
5797 * Print out deprecated issuer and subject unique ID fields in
5798 certificates.
5799
5800 *Steve Henson*
5801
5802 * Extend OCSP I/O functions so they can be used for simple general purpose
5803 HTTP as well as OCSP. New wrapper function which can be used to download
5804 CRLs using the OCSP API.
5805
5806 *Steve Henson*
5807
5808 * Delegate command line handling in s_client/s_server to SSL_CONF APIs.
5809
5810 *Steve Henson*
5811
5812 * `SSL_CONF*` functions. These provide a common framework for application
5813 configuration using configuration files or command lines.
5814
5815 *Steve Henson*
5816
5817 * SSL/TLS tracing code. This parses out SSL/TLS records using the
5818 message callback and prints the results. Needs compile time option
5819 "enable-ssl-trace". New options to s_client and s_server to enable
5820 tracing.
5821
5822 *Steve Henson*
5823
5824 * New ctrl and macro to retrieve supported points extensions.
5825 Print out extension in s_server and s_client.
5826
5827 *Steve Henson*
5828
5829 * New functions to retrieve certificate signature and signature
5830 OID NID.
5831
5832 *Steve Henson*
5833
5834 * Add functions to retrieve and manipulate the raw cipherlist sent by a
5835 client to OpenSSL.
5836
5837 *Steve Henson*
5838
5839 * New Suite B modes for TLS code. These use and enforce the requirements
5840 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
5841 only use Suite B curves. The Suite B modes can be set by using the
5842 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
5843
5844 *Steve Henson*
5845
5846 * New chain verification flags for Suite B levels of security. Check
5847 algorithms are acceptable when flags are set in X509_verify_cert.
5848
5849 *Steve Henson*
5850
5851 * Make tls1_check_chain return a set of flags indicating checks passed
5852 by a certificate chain. Add additional tests to handle client
5853 certificates: checks for matching certificate type and issuer name
5854 comparison.
5855
5856 *Steve Henson*
5857
5858 * If an attempt is made to use a signature algorithm not in the peer
5859 preference list abort the handshake. If client has no suitable
5860 signature algorithms in response to a certificate request do not
5861 use the certificate.
5862
5863 *Steve Henson*
5864
5865 * If server EC tmp key is not in client preference list abort handshake.
5866
5867 *Steve Henson*
5868
5869 * Add support for certificate stores in CERT structure. This makes it
5870 possible to have different stores per SSL structure or one store in
5871 the parent SSL_CTX. Include distinct stores for certificate chain
5872 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
5873 to build and store a certificate chain in CERT structure: returning
5874 an error if the chain cannot be built: this will allow applications
5875 to test if a chain is correctly configured.
5876
5877 Note: if the CERT based stores are not set then the parent SSL_CTX
5878 store is used to retain compatibility with existing behaviour.
5879
5880 *Steve Henson*
5881
5882 * New function ssl_set_client_disabled to set a ciphersuite disabled
5883 mask based on the current session, check mask when sending client
5884 hello and checking the requested ciphersuite.
5885
5886 *Steve Henson*
5887
5888 * New ctrls to retrieve and set certificate types in a certificate
5889 request message. Print out received values in s_client. If certificate
5890 types is not set with custom values set sensible values based on
5891 supported signature algorithms.
5892
5893 *Steve Henson*
5894
5895 * Support for distinct client and server supported signature algorithms.
5896
5897 *Steve Henson*
5898
5899 * Add certificate callback. If set this is called whenever a certificate
5900 is required by client or server. An application can decide which
5901 certificate chain to present based on arbitrary criteria: for example
5902 supported signature algorithms. Add very simple example to s_server.
5903 This fixes many of the problems and restrictions of the existing client
5904 certificate callback: for example you can now clear an existing
5905 certificate and specify the whole chain.
5906
5907 *Steve Henson*
5908
5909 * Add new "valid_flags" field to CERT_PKEY structure which determines what
5910 the certificate can be used for (if anything). Set valid_flags field
5911 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
5912 to have similar checks in it.
5913
5914 Add new "cert_flags" field to CERT structure and include a "strict mode".
5915 This enforces some TLS certificate requirements (such as only permitting
5916 certificate signature algorithms contained in the supported algorithms
5917 extension) which some implementations ignore: this option should be used
5918 with caution as it could cause interoperability issues.
5919
5920 *Steve Henson*
5921
5922 * Update and tidy signature algorithm extension processing. Work out
5923 shared signature algorithms based on preferences and peer algorithms
5924 and print them out in s_client and s_server. Abort handshake if no
5925 shared signature algorithms.
5926
5927 *Steve Henson*
5928
5929 * Add new functions to allow customised supported signature algorithms
5930 for SSL and SSL_CTX structures. Add options to s_client and s_server
5931 to support them.
5932
5933 *Steve Henson*
5934
5935 * New function SSL_certs_clear() to delete all references to certificates
5936 from an SSL structure. Before this once a certificate had been added
5937 it couldn't be removed.
5938
5939 *Steve Henson*
5940
5941 * Integrate hostname, email address and IP address checking with certificate
5942 verification. New verify options supporting checking in openssl utility.
5943
5944 *Steve Henson*
5945
5946 * Fixes and wildcard matching support to hostname and email checking
5947 functions. Add manual page.
5948
5949 *Florian Weimer (Red Hat Product Security Team)*
5950
5951 * New functions to check a hostname email or IP address against a
5952 certificate. Add options x509 utility to print results of checks against
5953 a certificate.
5954
5955 *Steve Henson*
5956
5957 * Fix OCSP checking.
5958
5959 *Rob Stradling <[email protected]> and Ben Laurie*
5960
5961 * Initial experimental support for explicitly trusted non-root CAs.
5962 OpenSSL still tries to build a complete chain to a root but if an
5963 intermediate CA has a trust setting included that is used. The first
5964 setting is used: whether to trust (e.g., -addtrust option to the x509
5965 utility) or reject.
5966
5967 *Steve Henson*
5968
5969 * Add -trusted_first option which attempts to find certificates in the
5970 trusted store even if an untrusted chain is also supplied.
5971
5972 *Steve Henson*
5973
5974 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
5975 platform support for Linux and Android.
5976
5977 *Andy Polyakov*
5978
5979 * Support for linux-x32, ILP32 environment in x86_64 framework.
5980
5981 *Andy Polyakov*
5982
5983 * Experimental multi-implementation support for FIPS capable OpenSSL.
5984 When in FIPS mode the approved implementations are used as normal,
5985 when not in FIPS mode the internal unapproved versions are used instead.
5986 This means that the FIPS capable OpenSSL isn't forced to use the
5987 (often lower performance) FIPS implementations outside FIPS mode.
5988
5989 *Steve Henson*
5990
5991 * Transparently support X9.42 DH parameters when calling
5992 PEM_read_bio_DHparameters. This means existing applications can handle
5993 the new parameter format automatically.
5994
5995 *Steve Henson*
5996
5997 * Initial experimental support for X9.42 DH parameter format: mainly
5998 to support use of 'q' parameter for RFC5114 parameters.
5999
6000 *Steve Henson*
6001
6002 * Add DH parameters from RFC5114 including test data to dhtest.
6003
6004 *Steve Henson*
6005
6006 * Support for automatic EC temporary key parameter selection. If enabled
6007 the most preferred EC parameters are automatically used instead of
6008 hardcoded fixed parameters. Now a server just has to call:
6009 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
6010 support ECDH and use the most appropriate parameters.
6011
6012 *Steve Henson*
6013
6014 * Enhance and tidy EC curve and point format TLS extension code. Use
6015 static structures instead of allocation if default values are used.
6016 New ctrls to set curves we wish to support and to retrieve shared curves.
6017 Print out shared curves in s_server. New options to s_server and s_client
6018 to set list of supported curves.
6019
6020 *Steve Henson*
6021
6022 * New ctrls to retrieve supported signature algorithms and
6023 supported curve values as an array of NIDs. Extend openssl utility
6024 to print out received values.
6025
6026 *Steve Henson*
6027
6028 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
6029 between NIDs and the more common NIST names such as "P-256". Enhance
6030 ecparam utility and ECC method to recognise the NIST names for curves.
6031
6032 *Steve Henson*
6033
6034 * Enhance SSL/TLS certificate chain handling to support different
6035 chains for each certificate instead of one chain in the parent SSL_CTX.
6036
6037 *Steve Henson*
6038
6039 * Support for fixed DH ciphersuite client authentication: where both
6040 server and client use DH certificates with common parameters.
6041
6042 *Steve Henson*
6043
6044 * Support for fixed DH ciphersuites: those requiring DH server
6045 certificates.
6046
6047 *Steve Henson*
6048
6049 * New function i2d_re_X509_tbs for re-encoding the TBS portion of
6050 the certificate.
6051 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
6052 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
6053 X509_CINF_get_signature were reverted post internal team review.
6054
6055OpenSSL 1.0.1
6056-------------
6057
6058### Changes between 1.0.1t and 1.0.1u [22 Sep 2016]
6059
6060 * OCSP Status Request extension unbounded memory growth
6061
6062 A malicious client can send an excessively large OCSP Status Request
6063 extension. If that client continually requests renegotiation, sending a
6064 large OCSP Status Request extension each time, then there will be unbounded
6065 memory growth on the server. This will eventually lead to a Denial Of
6066 Service attack through memory exhaustion. Servers with a default
6067 configuration are vulnerable even if they do not support OCSP. Builds using
6068 the "no-ocsp" build time option are not affected.
6069
6070 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
6071 ([CVE-2016-6304])
6072
6073 *Matt Caswell*
6074
6075 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from
6076 HIGH to MEDIUM.
6077
6078 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan
6079 Leurent (INRIA)
6080 ([CVE-2016-2183])
6081
6082 *Rich Salz*
6083
6084 * OOB write in MDC2_Update()
6085
6086 An overflow can occur in MDC2_Update() either if called directly or
6087 through the EVP_DigestUpdate() function using MDC2. If an attacker
6088 is able to supply very large amounts of input data after a previous
6089 call to EVP_EncryptUpdate() with a partial block then a length check
6090 can overflow resulting in a heap corruption.
6091
6092 The amount of data needed is comparable to SIZE_MAX which is impractical
6093 on most platforms.
6094
6095 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
6096 ([CVE-2016-6303])
6097
6098 *Stephen Henson*
6099
6100 * Malformed SHA512 ticket DoS
6101
6102 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a
6103 DoS attack where a malformed ticket will result in an OOB read which will
6104 ultimately crash.
6105
6106 The use of SHA512 in TLS session tickets is comparatively rare as it requires
6107 a custom server callback and ticket lookup mechanism.
6108
6109 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
6110 ([CVE-2016-6302])
6111
6112 *Stephen Henson*
6113
6114 * OOB write in BN_bn2dec()
6115
6116 The function BN_bn2dec() does not check the return value of BN_div_word().
6117 This can cause an OOB write if an application uses this function with an
6118 overly large BIGNUM. This could be a problem if an overly large certificate
6119 or CRL is printed out from an untrusted source. TLS is not affected because
6120 record limits will reject an oversized certificate before it is parsed.
6121
6122 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
6123 ([CVE-2016-2182])
6124
6125 *Stephen Henson*
6126
6127 * OOB read in TS_OBJ_print_bio()
6128
6129 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is
6130 the total length the OID text representation would use and not the amount
6131 of data written. This will result in OOB reads when large OIDs are
6132 presented.
6133
6134 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
6135 ([CVE-2016-2180])
6136
6137 *Stephen Henson*
6138
6139 * Pointer arithmetic undefined behaviour
6140
6141 Avoid some undefined pointer arithmetic
6142
6143 A common idiom in the codebase is to check limits in the following manner:
6144 "p + len > limit"
6145
6146 Where "p" points to some malloc'd data of SIZE bytes and
6147 limit == p + SIZE
6148
6149 "len" here could be from some externally supplied data (e.g. from a TLS
6150 message).
6151
6152 The rules of C pointer arithmetic are such that "p + len" is only well
6153 defined where len <= SIZE. Therefore the above idiom is actually
6154 undefined behaviour.
6155
6156 For example this could cause problems if some malloc implementation
6157 provides an address for "p" such that "p + len" actually overflows for
6158 values of len that are too big and therefore p + len < limit.
6159
6160 This issue was reported to OpenSSL by Guido Vranken
6161 ([CVE-2016-2177])
6162
6163 *Matt Caswell*
6164
6165 * Constant time flag not preserved in DSA signing
6166
6167 Operations in the DSA signing algorithm should run in constant time in
6168 order to avoid side channel attacks. A flaw in the OpenSSL DSA
6169 implementation means that a non-constant time codepath is followed for
6170 certain operations. This has been demonstrated through a cache-timing
6171 attack to be sufficient for an attacker to recover the private DSA key.
6172
6173 This issue was reported by César Pereida (Aalto University), Billy Brumley
6174 (Tampere University of Technology), and Yuval Yarom (The University of
6175 Adelaide and NICTA).
6176 ([CVE-2016-2178])
6177
6178 *César Pereida*
6179
6180 * DTLS buffered message DoS
6181
6182 In a DTLS connection where handshake messages are delivered out-of-order
6183 those messages that OpenSSL is not yet ready to process will be buffered
6184 for later use. Under certain circumstances, a flaw in the logic means that
6185 those messages do not get removed from the buffer even though the handshake
6186 has been completed. An attacker could force up to approx. 15 messages to
6187 remain in the buffer when they are no longer required. These messages will
6188 be cleared when the DTLS connection is closed. The default maximum size for
6189 a message is 100k. Therefore the attacker could force an additional 1500k
6190 to be consumed per connection. By opening many simulataneous connections an
6191 attacker could cause a DoS attack through memory exhaustion.
6192
6193 This issue was reported to OpenSSL by Quan Luo.
6194 ([CVE-2016-2179])
6195
6196 *Matt Caswell*
6197
6198 * DTLS replay protection DoS
6199
6200 A flaw in the DTLS replay attack protection mechanism means that records
6201 that arrive for future epochs update the replay protection "window" before
6202 the MAC for the record has been validated. This could be exploited by an
6203 attacker by sending a record for the next epoch (which does not have to
6204 decrypt or have a valid MAC), with a very large sequence number. This means
6205 that all subsequent legitimate packets are dropped causing a denial of
6206 service for a specific DTLS connection.
6207
6208 This issue was reported to OpenSSL by the OCAP audit team.
6209 ([CVE-2016-2181])
6210
6211 *Matt Caswell*
6212
6213 * Certificate message OOB reads
6214
6215 In OpenSSL 1.0.2 and earlier some missing message length checks can result
6216 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a
6217 theoretical DoS risk but this has not been observed in practice on common
6218 platforms.
6219
6220 The messages affected are client certificate, client certificate request
6221 and server certificate. As a result the attack can only be performed
6222 against a client or a server which enables client authentication.
6223
6224 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.)
6225 ([CVE-2016-6306])
6226
6227 *Stephen Henson*
6228
6229### Changes between 1.0.1s and 1.0.1t [3 May 2016]
6230
6231 * Prevent padding oracle in AES-NI CBC MAC check
6232
6233 A MITM attacker can use a padding oracle attack to decrypt traffic
6234 when the connection uses an AES CBC cipher and the server support
6235 AES-NI.
6236
6237 This issue was introduced as part of the fix for Lucky 13 padding
6238 attack ([CVE-2013-0169]). The padding check was rewritten to be in
6239 constant time by making sure that always the same bytes are read and
6240 compared against either the MAC or padding bytes. But it no longer
6241 checked that there was enough data to have both the MAC and padding
6242 bytes.
6243
6244 This issue was reported by Juraj Somorovsky using TLS-Attacker.
6245 ([CVE-2016-2107])
6246
6247 *Kurt Roeckx*
6248
6249 * Fix EVP_EncodeUpdate overflow
6250
6251 An overflow can occur in the EVP_EncodeUpdate() function which is used for
6252 Base64 encoding of binary data. If an attacker is able to supply very large
6253 amounts of input data then a length check can overflow resulting in a heap
6254 corruption.
6255
6256 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by
6257 the `PEM_write_bio*` family of functions. These are mainly used within the
6258 OpenSSL command line applications, so any application which processes data
6259 from an untrusted source and outputs it as a PEM file should be considered
6260 vulnerable to this issue. User applications that call these APIs directly
6261 with large amounts of untrusted data may also be vulnerable.
6262
6263 This issue was reported by Guido Vranken.
6264 ([CVE-2016-2105])
6265
6266 *Matt Caswell*
6267
6268 * Fix EVP_EncryptUpdate overflow
6269
6270 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker
6271 is able to supply very large amounts of input data after a previous call to
6272 EVP_EncryptUpdate() with a partial block then a length check can overflow
6273 resulting in a heap corruption. Following an analysis of all OpenSSL
6274 internal usage of the EVP_EncryptUpdate() function all usage is one of two
6275 forms. The first form is where the EVP_EncryptUpdate() call is known to be
6276 the first called function after an EVP_EncryptInit(), and therefore that
6277 specific call must be safe. The second form is where the length passed to
6278 EVP_EncryptUpdate() can be seen from the code to be some small value and
6279 therefore there is no possibility of an overflow. Since all instances are
6280 one of these two forms, it is believed that there can be no overflows in
6281 internal code due to this problem. It should be noted that
6282 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths.
6283 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances
6284 of these calls have also been analysed too and it is believed there are no
6285 instances in internal usage where an overflow could occur.
6286
6287 This issue was reported by Guido Vranken.
6288 ([CVE-2016-2106])
6289
6290 *Matt Caswell*
6291
6292 * Prevent ASN.1 BIO excessive memory allocation
6293
6294 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio()
6295 a short invalid encoding can casuse allocation of large amounts of memory
6296 potentially consuming excessive resources or exhausting memory.
6297
6298 Any application parsing untrusted data through d2i BIO functions is
6299 affected. The memory based functions such as d2i_X509() are *not* affected.
6300 Since the memory based functions are used by the TLS library, TLS
6301 applications are not affected.
6302
6303 This issue was reported by Brian Carpenter.
6304 ([CVE-2016-2109])
6305
6306 *Stephen Henson*
6307
6308 * EBCDIC overread
6309
6310 ASN1 Strings that are over 1024 bytes can cause an overread in applications
6311 using the X509_NAME_oneline() function on EBCDIC systems. This could result
6312 in arbitrary stack data being returned in the buffer.
6313
6314 This issue was reported by Guido Vranken.
6315 ([CVE-2016-2176])
6316
6317 *Matt Caswell*
6318
6319 * Modify behavior of ALPN to invoke callback after SNI/servername
6320 callback, such that updates to the SSL_CTX affect ALPN.
6321
6322 *Todd Short*
6323
6324 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the
6325 default.
6326
6327 *Kurt Roeckx*
6328
6329 * Only remove the SSLv2 methods with the no-ssl2-method option. When the
6330 methods are enabled and ssl2 is disabled the methods return NULL.
6331
6332 *Kurt Roeckx*
6333
6334### Changes between 1.0.1r and 1.0.1s [1 Mar 2016]
6335
6336* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
6337 Builds that are not configured with "enable-weak-ssl-ciphers" will not
6338 provide any "EXPORT" or "LOW" strength ciphers.
6339
6340 *Viktor Dukhovni*
6341
6342* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2
6343 is by default disabled at build-time. Builds that are not configured with
6344 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used,
6345 users who want to negotiate SSLv2 via the version-flexible SSLv23_method()
6346 will need to explicitly call either of:
6347
6348 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2);
6349 or
6350 SSL_clear_options(ssl, SSL_OP_NO_SSLv2);
6351
6352 as appropriate. Even if either of those is used, or the application
6353 explicitly uses the version-specific SSLv2_method() or its client and
6354 server variants, SSLv2 ciphers vulnerable to exhaustive search key
6355 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT
6356 ciphers, and SSLv2 56-bit DES are no longer available.
6357 ([CVE-2016-0800])
6358
6359 *Viktor Dukhovni*
6360
6361 * Fix a double-free in DSA code
6362
6363 A double free bug was discovered when OpenSSL parses malformed DSA private
6364 keys and could lead to a DoS attack or memory corruption for applications
6365 that receive DSA private keys from untrusted sources. This scenario is
6366 considered rare.
6367
6368 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using
6369 libFuzzer.
6370 ([CVE-2016-0705])
6371
6372 *Stephen Henson*
6373
6374 * Disable SRP fake user seed to address a server memory leak.
6375
6376 Add a new method SRP_VBASE_get1_by_user that handles the seed properly.
6377
6378 SRP_VBASE_get_by_user had inconsistent memory management behaviour.
6379 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user
6380 was changed to ignore the "fake user" SRP seed, even if the seed
6381 is configured.
6382
6383 Users should use SRP_VBASE_get1_by_user instead. Note that in
6384 SRP_VBASE_get1_by_user, caller must free the returned value. Note
6385 also that even though configuring the SRP seed attempts to hide
6386 invalid usernames by continuing the handshake with fake
6387 credentials, this behaviour is not constant time and no strong
6388 guarantees are made that the handshake is indistinguishable from
6389 that of a valid user.
6390 ([CVE-2016-0798])
6391
6392 *Emilia Käsper*
6393
6394 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
6395
6396 In the BN_hex2bn function the number of hex digits is calculated using an
6397 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For
6398 large values of `i` this can result in `bn_expand` not allocating any
6399 memory because `i * 4` is negative. This can leave the internal BIGNUM data
6400 field as NULL leading to a subsequent NULL ptr deref. For very large values
6401 of `i`, the calculation `i * 4` could be a positive value smaller than `i`.
6402 In this case memory is allocated to the internal BIGNUM data field, but it
6403 is insufficiently sized leading to heap corruption. A similar issue exists
6404 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn
6405 is ever called by user applications with very large untrusted hex/dec data.
6406 This is anticipated to be a rare occurrence.
6407
6408 All OpenSSL internal usage of these functions use data that is not expected
6409 to be untrusted, e.g. config file data or application command line
6410 arguments. If user developed applications generate config file data based
6411 on untrusted data then it is possible that this could also lead to security
6412 consequences. This is also anticipated to be rare.
6413
6414 This issue was reported to OpenSSL by Guido Vranken.
6415 ([CVE-2016-0797])
6416
6417 *Matt Caswell*
6418
6419 * Fix memory issues in `BIO_*printf` functions
6420
6421 The internal `fmtstr` function used in processing a "%s" format string in
6422 the `BIO_*printf` functions could overflow while calculating the length of a
6423 string and cause an OOB read when printing very long strings.
6424
6425 Additionally the internal `doapr_outch` function can attempt to write to an
6426 OOB memory location (at an offset from the NULL pointer) in the event of a
6427 memory allocation failure. In 1.0.2 and below this could be caused where
6428 the size of a buffer to be allocated is greater than INT_MAX. E.g. this
6429 could be in processing a very long "%s" format string. Memory leaks can
6430 also occur.
6431
6432 The first issue may mask the second issue dependent on compiler behaviour.
6433 These problems could enable attacks where large amounts of untrusted data
6434 is passed to the `BIO_*printf` functions. If applications use these functions
6435 in this way then they could be vulnerable. OpenSSL itself uses these
6436 functions when printing out human-readable dumps of ASN.1 data. Therefore
6437 applications that print this data could be vulnerable if the data is from
6438 untrusted sources. OpenSSL command line applications could also be
6439 vulnerable where they print out ASN.1 data, or if untrusted data is passed
6440 as command line arguments.
6441
6442 Libssl is not considered directly vulnerable. Additionally certificates etc
6443 received via remote connections via libssl are also unlikely to be able to
6444 trigger these issues because of message size limits enforced within libssl.
6445
6446 This issue was reported to OpenSSL Guido Vranken.
6447 ([CVE-2016-0799])
6448
6449 *Matt Caswell*
6450
6451 * Side channel attack on modular exponentiation
6452
6453 A side-channel attack was found which makes use of cache-bank conflicts on
6454 the Intel Sandy-Bridge microarchitecture which could lead to the recovery
6455 of RSA keys. The ability to exploit this issue is limited as it relies on
6456 an attacker who has control of code in a thread running on the same
6457 hyper-threaded core as the victim thread which is performing decryptions.
6458
6459 This issue was reported to OpenSSL by Yuval Yarom, The University of
6460 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and
6461 Nadia Heninger, University of Pennsylvania with more information at
6462 <http://cachebleed.info>.
6463 ([CVE-2016-0702])
6464
6465 *Andy Polyakov*
6466
6467 * Change the req command to generate a 2048-bit RSA/DSA key by default,
6468 if no keysize is specified with default_bits. This fixes an
6469 omission in an earlier change that changed all RSA/DSA key generation
6470 commands to use 2048 bits by default.
6471
6472 *Emilia Käsper*
6473
6474### Changes between 1.0.1q and 1.0.1r [28 Jan 2016]
6475
6476 * Protection for DH small subgroup attacks
6477
6478 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been
6479 switched on by default and cannot be disabled. This could have some
6480 performance impact.
6481
6482 *Matt Caswell*
6483
6484 * SSLv2 doesn't block disabled ciphers
6485
6486 A malicious client can negotiate SSLv2 ciphers that have been disabled on
6487 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have
6488 been disabled, provided that the SSLv2 protocol was not also disabled via
6489 SSL_OP_NO_SSLv2.
6490
6491 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram
6492 and Sebastian Schinzel.
6493 ([CVE-2015-3197])
6494
6495 *Viktor Dukhovni*
6496
6497 * Reject DH handshakes with parameters shorter than 1024 bits.
6498
6499 *Kurt Roeckx*
6500
6501### Changes between 1.0.1p and 1.0.1q [3 Dec 2015]
6502
6503 * Certificate verify crash with missing PSS parameter
6504
6505 The signature verification routines will crash with a NULL pointer
6506 dereference if presented with an ASN.1 signature using the RSA PSS
6507 algorithm and absent mask generation function parameter. Since these
6508 routines are used to verify certificate signature algorithms this can be
6509 used to crash any certificate verification operation and exploited in a
6510 DoS attack. Any application which performs certificate verification is
6511 vulnerable including OpenSSL clients and servers which enable client
6512 authentication.
6513
6514 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
6515 ([CVE-2015-3194])
6516
6517 *Stephen Henson*
6518
6519 * X509_ATTRIBUTE memory leak
6520
6521 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
6522 memory. This structure is used by the PKCS#7 and CMS routines so any
6523 application which reads PKCS#7 or CMS data from untrusted sources is
6524 affected. SSL/TLS is not affected.
6525
6526 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
6527 libFuzzer.
6528 ([CVE-2015-3195])
6529
6530 *Stephen Henson*
6531
6532 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
6533 This changes the decoding behaviour for some invalid messages,
6534 though the change is mostly in the more lenient direction, and
6535 legacy behaviour is preserved as much as possible.
6536
6537 *Emilia Käsper*
6538
6539 * In DSA_generate_parameters_ex, if the provided seed is too short,
6540 use a random seed, as already documented.
6541
6542 *Rich Salz and Ismo Puustinen <[email protected]>*
6543
6544### Changes between 1.0.1o and 1.0.1p [9 Jul 2015]
6545
6546 * Alternate chains certificate forgery
6547
6548 During certificate verfification, OpenSSL will attempt to find an
6549 alternative certificate chain if the first attempt to build such a chain
6550 fails. An error in the implementation of this logic can mean that an
6551 attacker could cause certain checks on untrusted certificates to be
6552 bypassed, such as the CA flag, enabling them to use a valid leaf
6553 certificate to act as a CA and "issue" an invalid certificate.
6554
6555 This issue was reported to OpenSSL by Adam Langley/David Benjamin
6556 (Google/BoringSSL).
6557 ([CVE-2015-1793])
6558
6559 *Matt Caswell*
6560
6561 * Race condition handling PSK identify hint
6562
6563 If PSK identity hints are received by a multi-threaded client then
6564 the values are wrongly updated in the parent SSL_CTX structure. This can
6565 result in a race condition potentially leading to a double free of the
6566 identify hint data.
6567 ([CVE-2015-3196])
6568
6569 *Stephen Henson*
6570
6571### Changes between 1.0.1n and 1.0.1o [12 Jun 2015]
6572
6573 * Fix HMAC ABI incompatibility. The previous version introduced an ABI
6574 incompatibility in the handling of HMAC. The previous ABI has now been
6575 restored.
6576
6577### Changes between 1.0.1m and 1.0.1n [11 Jun 2015]
6578
6579 * Malformed ECParameters causes infinite loop
6580
6581 When processing an ECParameters structure OpenSSL enters an infinite loop
6582 if the curve specified is over a specially malformed binary polynomial
6583 field.
6584
6585 This can be used to perform denial of service against any
6586 system which processes public keys, certificate requests or
6587 certificates. This includes TLS clients and TLS servers with
6588 client authentication enabled.
6589
6590 This issue was reported to OpenSSL by Joseph Barr-Pixton.
6591 ([CVE-2015-1788])
6592
6593 *Andy Polyakov*
6594
6595 * Exploitable out-of-bounds read in X509_cmp_time
6596
6597 X509_cmp_time does not properly check the length of the ASN1_TIME
6598 string and can read a few bytes out of bounds. In addition,
6599 X509_cmp_time accepts an arbitrary number of fractional seconds in the
6600 time string.
6601
6602 An attacker can use this to craft malformed certificates and CRLs of
6603 various sizes and potentially cause a segmentation fault, resulting in
6604 a DoS on applications that verify certificates or CRLs. TLS clients
6605 that verify CRLs are affected. TLS clients and servers with client
6606 authentication enabled may be affected if they use custom verification
6607 callbacks.
6608
6609 This issue was reported to OpenSSL by Robert Swiecki (Google), and
6610 independently by Hanno Böck.
6611 ([CVE-2015-1789])
6612
6613 *Emilia Käsper*
6614
6615 * PKCS7 crash with missing EnvelopedContent
6616
6617 The PKCS#7 parsing code does not handle missing inner EncryptedContent
6618 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
6619 with missing content and trigger a NULL pointer dereference on parsing.
6620
6621 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
6622 structures from untrusted sources are affected. OpenSSL clients and
6623 servers are not affected.
6624
6625 This issue was reported to OpenSSL by Michal Zalewski (Google).
6626 ([CVE-2015-1790])
6627
6628 *Emilia Käsper*
6629
6630 * CMS verify infinite loop with unknown hash function
6631
6632 When verifying a signedData message the CMS code can enter an infinite loop
6633 if presented with an unknown hash function OID. This can be used to perform
6634 denial of service against any system which verifies signedData messages using
6635 the CMS code.
6636 This issue was reported to OpenSSL by Johannes Bauer.
6637 ([CVE-2015-1792])
6638
6639 *Stephen Henson*
6640
6641 * Race condition handling NewSessionTicket
6642
6643 If a NewSessionTicket is received by a multi-threaded client when attempting to
6644 reuse a previous ticket then a race condition can occur potentially leading to
6645 a double free of the ticket data.
6646 ([CVE-2015-1791])
6647
6648 *Matt Caswell*
6649
6650 * Reject DH handshakes with parameters shorter than 768 bits.
6651
6652 *Kurt Roeckx and Emilia Kasper*
6653
6654 * dhparam: generate 2048-bit parameters by default.
6655
6656 *Kurt Roeckx and Emilia Kasper*
6657
6658### Changes between 1.0.1l and 1.0.1m [19 Mar 2015]
6659
6660 * Segmentation fault in ASN1_TYPE_cmp fix
6661
6662 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
6663 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
6664 certificate signature algorithm consistency this can be used to crash any
6665 certificate verification operation and exploited in a DoS attack. Any
6666 application which performs certificate verification is vulnerable including
6667 OpenSSL clients and servers which enable client authentication.
6668 ([CVE-2015-0286])
6669
6670 *Stephen Henson*
6671
6672 * ASN.1 structure reuse memory corruption fix
6673
6674 Reusing a structure in ASN.1 parsing may allow an attacker to cause
6675 memory corruption via an invalid write. Such reuse is and has been
6676 strongly discouraged and is believed to be rare.
6677
6678 Applications that parse structures containing CHOICE or ANY DEFINED BY
6679 components may be affected. Certificate parsing (d2i_X509 and related
6680 functions) are however not affected. OpenSSL clients and servers are
6681 not affected.
6682 ([CVE-2015-0287])
6683
6684 *Stephen Henson*
6685
6686 * PKCS7 NULL pointer dereferences fix
6687
6688 The PKCS#7 parsing code does not handle missing outer ContentInfo
6689 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
6690 missing content and trigger a NULL pointer dereference on parsing.
6691
6692 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
6693 otherwise parse PKCS#7 structures from untrusted sources are
6694 affected. OpenSSL clients and servers are not affected.
6695
6696 This issue was reported to OpenSSL by Michal Zalewski (Google).
6697 ([CVE-2015-0289])
6698
6699 *Emilia Käsper*
6700
6701 * DoS via reachable assert in SSLv2 servers fix
6702
6703 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
6704 servers that both support SSLv2 and enable export cipher suites by sending
6705 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
6706
6707 This issue was discovered by Sean Burford (Google) and Emilia Käsper
6708 (OpenSSL development team).
6709 ([CVE-2015-0293])
6710
6711 *Emilia Käsper*
6712
6713 * Use After Free following d2i_ECPrivatekey error fix
6714
6715 A malformed EC private key file consumed via the d2i_ECPrivateKey function
6716 could cause a use after free condition. This, in turn, could cause a double
6717 free in several private key parsing functions (such as d2i_PrivateKey
6718 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
6719 for applications that receive EC private keys from untrusted
6720 sources. This scenario is considered rare.
6721
6722 This issue was discovered by the BoringSSL project and fixed in their
6723 commit 517073cd4b.
6724 ([CVE-2015-0209])
6725
6726 *Matt Caswell*
6727
6728 * X509_to_X509_REQ NULL pointer deref fix
6729
6730 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
6731 the certificate key is invalid. This function is rarely used in practice.
6732
6733 This issue was discovered by Brian Carpenter.
6734 ([CVE-2015-0288])
6735
6736 *Stephen Henson*
6737
6738 * Removed the export ciphers from the DEFAULT ciphers
6739
6740 *Kurt Roeckx*
6741
6742### Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
6743
6744 * Build fixes for the Windows and OpenVMS platforms
6745
6746 *Matt Caswell and Richard Levitte*
6747
6748### Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
6749
6750 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
6751 message can cause a segmentation fault in OpenSSL due to a NULL pointer
6752 dereference. This could lead to a Denial Of Service attack. Thanks to
6753 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
6754 ([CVE-2014-3571])
6755
6756 *Steve Henson*
6757
6758 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
6759 dtls1_buffer_record function under certain conditions. In particular this
6760 could occur if an attacker sent repeated DTLS records with the same
6761 sequence number but for the next epoch. The memory leak could be exploited
6762 by an attacker in a Denial of Service attack through memory exhaustion.
6763 Thanks to Chris Mueller for reporting this issue.
6764 ([CVE-2015-0206])
6765
6766 *Matt Caswell*
6767
6768 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
6769 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
6770 method would be set to NULL which could later result in a NULL pointer
6771 dereference. Thanks to Frank Schmirler for reporting this issue.
6772 ([CVE-2014-3569])
6773
6774 *Kurt Roeckx*
6775
6776 * Abort handshake if server key exchange message is omitted for ephemeral
6777 ECDH ciphersuites.
6778
6779 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
6780 reporting this issue.
6781 ([CVE-2014-3572])
6782
6783 *Steve Henson*
6784
6785 * Remove non-export ephemeral RSA code on client and server. This code
6786 violated the TLS standard by allowing the use of temporary RSA keys in
6787 non-export ciphersuites and could be used by a server to effectively
6788 downgrade the RSA key length used to a value smaller than the server
6789 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
6790 INRIA or reporting this issue.
6791 ([CVE-2015-0204])
6792
6793 *Steve Henson*
6794
6795 * Fixed issue where DH client certificates are accepted without verification.
6796 An OpenSSL server will accept a DH certificate for client authentication
6797 without the certificate verify message. This effectively allows a client to
6798 authenticate without the use of a private key. This only affects servers
6799 which trust a client certificate authority which issues certificates
6800 containing DH keys: these are extremely rare and hardly ever encountered.
6801 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
6802 this issue.
6803 ([CVE-2015-0205])
6804
6805 *Steve Henson*
6806
6807 * Ensure that the session ID context of an SSL is updated when its
6808 SSL_CTX is updated via SSL_set_SSL_CTX.
6809
6810 The session ID context is typically set from the parent SSL_CTX,
6811 and can vary with the CTX.
6812
6813 *Adam Langley*
6814
6815 * Fix various certificate fingerprint issues.
6816
6817 By using non-DER or invalid encodings outside the signed portion of a
6818 certificate the fingerprint can be changed without breaking the signature.
6819 Although no details of the signed portion of the certificate can be changed
6820 this can cause problems with some applications: e.g. those using the
6821 certificate fingerprint for blacklists.
6822
6823 1. Reject signatures with non zero unused bits.
6824
6825 If the BIT STRING containing the signature has non zero unused bits reject
6826 the signature. All current signature algorithms require zero unused bits.
6827
6828 2. Check certificate algorithm consistency.
6829
6830 Check the AlgorithmIdentifier inside TBS matches the one in the
6831 certificate signature. NB: this will result in signature failure
6832 errors for some broken certificates.
6833
6834 Thanks to Konrad Kraszewski from Google for reporting this issue.
6835
6836 3. Check DSA/ECDSA signatures use DER.
6837
6838 Re-encode DSA/ECDSA signatures and compare with the original received
6839 signature. Return an error if there is a mismatch.
6840
6841 This will reject various cases including garbage after signature
6842 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
6843 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
6844 (negative or with leading zeroes).
6845
6846 Further analysis was conducted and fixes were developed by Stephen Henson
6847 of the OpenSSL core team.
6848
6849 ([CVE-2014-8275])
6850
6851 *Steve Henson*
6852
6853 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
6854 results on some platforms, including x86_64. This bug occurs at random
6855 with a very low probability, and is not known to be exploitable in any
6856 way, though its exact impact is difficult to determine. Thanks to Pieter
6857 Wuille (Blockstream) who reported this issue and also suggested an initial
6858 fix. Further analysis was conducted by the OpenSSL development team and
6859 Adam Langley of Google. The final fix was developed by Andy Polyakov of
6860 the OpenSSL core team.
6861 ([CVE-2014-3570])
6862
6863 *Andy Polyakov*
6864
6865 * Do not resume sessions on the server if the negotiated protocol
6866 version does not match the session's version. Resuming with a different
6867 version, while not strictly forbidden by the RFC, is of questionable
6868 sanity and breaks all known clients.
6869
6870 *David Benjamin, Emilia Käsper*
6871
6872 * Tighten handling of the ChangeCipherSpec (CCS) message: reject
6873 early CCS messages during renegotiation. (Note that because
6874 renegotiation is encrypted, this early CCS was not exploitable.)
6875
6876 *Emilia Käsper*
6877
6878 * Tighten client-side session ticket handling during renegotiation:
6879 ensure that the client only accepts a session ticket if the server sends
6880 the extension anew in the ServerHello. Previously, a TLS client would
6881 reuse the old extension state and thus accept a session ticket if one was
6882 announced in the initial ServerHello.
6883
6884 Similarly, ensure that the client requires a session ticket if one
6885 was advertised in the ServerHello. Previously, a TLS client would
6886 ignore a missing NewSessionTicket message.
6887
6888 *Emilia Käsper*
6889
6890### Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
6891
6892 * SRTP Memory Leak.
6893
6894 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
6895 sends a carefully crafted handshake message, to cause OpenSSL to fail
6896 to free up to 64k of memory causing a memory leak. This could be
6897 exploited in a Denial Of Service attack. This issue affects OpenSSL
6898 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
6899 whether SRTP is used or configured. Implementations of OpenSSL that
6900 have been compiled with OPENSSL_NO_SRTP defined are not affected.
6901
6902 The fix was developed by the OpenSSL team.
6903 ([CVE-2014-3513])
6904
6905 *OpenSSL team*
6906
6907 * Session Ticket Memory Leak.
6908
6909 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
6910 integrity of that ticket is first verified. In the event of a session
6911 ticket integrity check failing, OpenSSL will fail to free memory
6912 causing a memory leak. By sending a large number of invalid session
6913 tickets an attacker could exploit this issue in a Denial Of Service
6914 attack.
6915 ([CVE-2014-3567])
6916
6917 *Steve Henson*
6918
6919 * Build option no-ssl3 is incomplete.
6920
6921 When OpenSSL is configured with "no-ssl3" as a build option, servers
6922 could accept and complete a SSL 3.0 handshake, and clients could be
6923 configured to send them.
6924 ([CVE-2014-3568])
6925
6926 *Akamai and the OpenSSL team*
6927
6928 * Add support for TLS_FALLBACK_SCSV.
6929 Client applications doing fallback retries should call
6930 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
6931 ([CVE-2014-3566])
6932
6933 *Adam Langley, Bodo Moeller*
6934
6935 * Add additional DigestInfo checks.
6936
6937 Re-encode DigestInto in DER and check against the original when
6938 verifying RSA signature: this will reject any improperly encoded
6939 DigestInfo structures.
6940
6941 Note: this is a precautionary measure and no attacks are currently known.
6942
6943 *Steve Henson*
6944
6945### Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
6946
6947 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
6948 SRP code can be overrun an internal buffer. Add sanity check that
6949 g, A, B < N to SRP code.
6950
6951 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
6952 Group for discovering this issue.
6953 ([CVE-2014-3512])
6954
6955 *Steve Henson*
6956
6957 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
6958 TLS 1.0 instead of higher protocol versions when the ClientHello message
6959 is badly fragmented. This allows a man-in-the-middle attacker to force a
6960 downgrade to TLS 1.0 even if both the server and the client support a
6961 higher protocol version, by modifying the client's TLS records.
6962
6963 Thanks to David Benjamin and Adam Langley (Google) for discovering and
6964 researching this issue.
6965 ([CVE-2014-3511])
6966
6967 *David Benjamin*
6968
6969 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
6970 to a denial of service attack. A malicious server can crash the client
6971 with a null pointer dereference (read) by specifying an anonymous (EC)DH
6972 ciphersuite and sending carefully crafted handshake messages.
6973
6974 Thanks to Felix Gröbert (Google) for discovering and researching this
6975 issue.
6976 ([CVE-2014-3510])
6977
6978 *Emilia Käsper*
6979
6980 * By sending carefully crafted DTLS packets an attacker could cause openssl
6981 to leak memory. This can be exploited through a Denial of Service attack.
6982 Thanks to Adam Langley for discovering and researching this issue.
6983 ([CVE-2014-3507])
6984
6985 *Adam Langley*
6986
6987 * An attacker can force openssl to consume large amounts of memory whilst
6988 processing DTLS handshake messages. This can be exploited through a
6989 Denial of Service attack.
6990 Thanks to Adam Langley for discovering and researching this issue.
6991 ([CVE-2014-3506])
6992
6993 *Adam Langley*
6994
6995 * An attacker can force an error condition which causes openssl to crash
6996 whilst processing DTLS packets due to memory being freed twice. This
6997 can be exploited through a Denial of Service attack.
6998 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
6999 this issue.
7000 ([CVE-2014-3505])
7001
7002 *Adam Langley*
7003
7004 * If a multithreaded client connects to a malicious server using a resumed
7005 session and the server sends an ec point format extension it could write
7006 up to 255 bytes to freed memory.
7007
7008 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
7009 issue.
7010 ([CVE-2014-3509])
7011
7012 *Gabor Tyukasz*
7013
7014 * A malicious server can crash an OpenSSL client with a null pointer
7015 dereference (read) by specifying an SRP ciphersuite even though it was not
7016 properly negotiated with the client. This can be exploited through a
7017 Denial of Service attack.
7018
7019 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
7020 discovering and researching this issue.
7021 ([CVE-2014-5139])
7022
7023 *Steve Henson*
7024
7025 * A flaw in OBJ_obj2txt may cause pretty printing functions such as
7026 X509_name_oneline, X509_name_print_ex et al. to leak some information
7027 from the stack. Applications may be affected if they echo pretty printing
7028 output to the attacker.
7029
7030 Thanks to Ivan Fratric (Google) for discovering this issue.
7031 ([CVE-2014-3508])
7032
7033 *Emilia Käsper, and Steve Henson*
7034
7035 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
7036 for corner cases. (Certain input points at infinity could lead to
7037 bogus results, with non-infinity inputs mapped to infinity too.)
7038
7039 *Bodo Moeller*
7040
7041### Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
7042
7043 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
7044 handshake can force the use of weak keying material in OpenSSL
7045 SSL/TLS clients and servers.
7046
7047 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
7048 researching this issue. ([CVE-2014-0224])
7049
7050 *KIKUCHI Masashi, Steve Henson*
7051
7052 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
7053 OpenSSL DTLS client the code can be made to recurse eventually crashing
7054 in a DoS attack.
7055
7056 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
7057 ([CVE-2014-0221])
7058
7059 *Imre Rad, Steve Henson*
7060
7061 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
7062 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
7063 client or server. This is potentially exploitable to run arbitrary
7064 code on a vulnerable client or server.
7065
7066 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195])
7067
7068 *Jüri Aedla, Steve Henson*
7069
7070 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
7071 are subject to a denial of service attack.
7072
7073 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
7074 this issue. ([CVE-2014-3470])
7075
7076 *Felix Gröbert, Ivan Fratric, Steve Henson*
7077
7078 * Harmonize version and its documentation. -f flag is used to display
7079 compilation flags.
7080
7081 *mancha <[email protected]>*
7082
7083 * Fix eckey_priv_encode so it immediately returns an error upon a failure
7084 in i2d_ECPrivateKey.
7085
7086 *mancha <[email protected]>*
7087
7088 * Fix some double frees. These are not thought to be exploitable.
7089
7090 *mancha <[email protected]>*
7091
7092### Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
7093
7094 * A missing bounds check in the handling of the TLS heartbeat extension
7095 can be used to reveal up to 64k of memory to a connected client or
7096 server.
7097
7098 Thanks for Neel Mehta of Google Security for discovering this bug and to
7099 Adam Langley <[email protected]> and Bodo Moeller <[email protected]> for
7100 preparing the fix ([CVE-2014-0160])
7101
7102 *Adam Langley, Bodo Moeller*
7103
7104 * Fix for the attack described in the paper "Recovering OpenSSL
7105 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
7106 by Yuval Yarom and Naomi Benger. Details can be obtained from:
7107 <http://eprint.iacr.org/2014/140>
7108
7109 Thanks to Yuval Yarom and Naomi Benger for discovering this
7110 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076])
7111
7112 *Yuval Yarom and Naomi Benger*
7113
7114 * TLS pad extension: draft-agl-tls-padding-03
7115
7116 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
7117 TLS client Hello record length value would otherwise be > 255 and
7118 less that 512 pad with a dummy extension containing zeroes so it
7119 is at least 512 bytes long.
7120
7121 *Adam Langley, Steve Henson*
7122
7123### Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
7124
7125 * Fix for TLS record tampering bug. A carefully crafted invalid
7126 handshake could crash OpenSSL with a NULL pointer exception.
7127 Thanks to Anton Johansson for reporting this issues.
7128 ([CVE-2013-4353])
7129
7130 * Keep original DTLS digest and encryption contexts in retransmission
7131 structures so we can use the previous session parameters if they need
7132 to be resent. ([CVE-2013-6450])
7133
7134 *Steve Henson*
7135
7136 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
7137 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
7138 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
7139 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
7140 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
7141 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
7142
7143 *Rob Stradling, Adam Langley*
7144
7145### Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
7146
7147 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI
7148 supporting platforms or when small records were transferred.
7149
7150 *Andy Polyakov, Steve Henson*
7151
7152### Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
7153
7154 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
7155
7156 This addresses the flaw in CBC record processing discovered by
7157 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
7158 at: <http://www.isg.rhul.ac.uk/tls/>
7159
7160 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
7161 Security Group at Royal Holloway, University of London
7162 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
7163 Emilia Käsper for the initial patch.
7164 ([CVE-2013-0169])
7165
7166 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson*
7167
7168 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
7169 ciphersuites which can be exploited in a denial of service attack.
7170 Thanks go to and to Adam Langley <[email protected]> for discovering
7171 and detecting this bug and to Wolfgang Ettlinger
7172 <[email protected]> for independently discovering this issue.
7173 ([CVE-2012-2686])
7174
7175 *Adam Langley*
7176
7177 * Return an error when checking OCSP signatures when key is NULL.
7178 This fixes a DoS attack. ([CVE-2013-0166])
7179
7180 *Steve Henson*
7181
7182 * Make openssl verify return errors.
7183
7184 *Chris Palmer <[email protected]> and Ben Laurie*
7185
7186 * Call OCSP Stapling callback after ciphersuite has been chosen, so
7187 the right response is stapled. Also change SSL_get_certificate()
7188 so it returns the certificate actually sent.
7189 See <http://rt.openssl.org/Ticket/Display.html?id=2836>.
7190
7191 *Rob Stradling <[email protected]>*
7192
7193 * Fix possible deadlock when decoding public keys.
7194
7195 *Steve Henson*
7196
7197 * Don't use TLS 1.0 record version number in initial client hello
7198 if renegotiating.
7199
7200 *Steve Henson*
7201
7202### Changes between 1.0.1b and 1.0.1c [10 May 2012]
7203
7204 * Sanity check record length before skipping explicit IV in TLS
7205 1.2, 1.1 and DTLS to fix DoS attack.
7206
7207 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
7208 fuzzing as a service testing platform.
7209 ([CVE-2012-2333])
7210
7211 *Steve Henson*
7212
7213 * Initialise tkeylen properly when encrypting CMS messages.
7214 Thanks to Solar Designer of Openwall for reporting this issue.
7215
7216 *Steve Henson*
7217
7218 * In FIPS mode don't try to use composite ciphers as they are not
7219 approved.
7220
7221 *Steve Henson*
7222
7223### Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
7224
7225 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
7226 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
7227 mean any application compiled against OpenSSL 1.0.0 headers setting
7228 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling
7229 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
7230 0x10000000L Any application which was previously compiled against
7231 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
7232 will need to be recompiled as a result. Letting be results in
7233 inability to disable specifically TLS 1.1 and in client context,
7234 in unlike event, limit maximum offered version to TLS 1.0 [see below].
7235
7236 *Steve Henson*
7237
7238 * In order to ensure interoperability SSL_OP_NO_protocolX does not
7239 disable just protocol X, but all protocols above X *if* there are
7240 protocols *below* X still enabled. In more practical terms it means
7241 that if application wants to disable TLS1.0 in favor of TLS1.1 and
7242 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass
7243 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to
7244 client side.
7245
7246 *Andy Polyakov*
7247
7248### Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
7249
7250 * Check for potentially exploitable overflows in asn1_d2i_read_bio
7251 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
7252 in CRYPTO_realloc_clean.
7253
7254 Thanks to Tavis Ormandy, Google Security Team, for discovering this
7255 issue and to Adam Langley <[email protected]> for fixing it.
7256 ([CVE-2012-2110])
7257
7258 *Adam Langley (Google), Tavis Ormandy, Google Security Team*
7259
7260 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
7261
7262 *Adam Langley*
7263
7264 * Workarounds for some broken servers that "hang" if a client hello
7265 record length exceeds 255 bytes.
7266
7267 1. Do not use record version number > TLS 1.0 in initial client
7268 hello: some (but not all) hanging servers will now work.
7269 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
7270 the number of ciphers sent in the client hello. This should be
7271 set to an even number, such as 50, for example by passing:
7272 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
7273 Most broken servers should now work.
7274 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
7275 TLS 1.2 client support entirely.
7276
7277 *Steve Henson*
7278
7279 * Fix SEGV in Vector Permutation AES module observed in OpenSSH.
7280
7281 *Andy Polyakov*
7282
7283### Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
7284
7285 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET
7286 STRING form instead of a DigestInfo.
7287
7288 *Steve Henson*
7289
7290 * The format used for MDC2 RSA signatures is inconsistent between EVP
7291 and the RSA_sign/RSA_verify functions. This was made more apparent when
7292 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
7293 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
7294 the correct format in RSA_verify so both forms transparently work.
7295
7296 *Steve Henson*
7297
7298 * Some servers which support TLS 1.0 can choke if we initially indicate
7299 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
7300 encrypted premaster secret. As a workaround use the maximum permitted
7301 client version in client hello, this should keep such servers happy
7302 and still work with previous versions of OpenSSL.
7303
7304 *Steve Henson*
7305
7306 * Add support for TLS/DTLS heartbeats.
7307
7308 *Robin Seggelmann <[email protected]>*
7309
7310 * Add support for SCTP.
7311
7312 *Robin Seggelmann <[email protected]>*
7313
7314 * Improved PRNG seeding for VOS.
7315
7316 *Paul Green <[email protected]>*
7317
7318 * Extensive assembler packs updates, most notably:
7319
7320 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
7321 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
7322 - x86_64: bit-sliced AES implementation;
7323 - ARM: NEON support, contemporary platforms optimizations;
7324 - s390x: z196 support;
7325 - `*`: GHASH and GF(2^m) multiplication implementations;
7326
7327 *Andy Polyakov*
7328
7329 * Make TLS-SRP code conformant with RFC 5054 API cleanup
7330 (removal of unnecessary code)
7331
7332 *Peter Sylvester <[email protected]>*
7333
7334 * Add TLS key material exporter from RFC 5705.
7335
7336 *Eric Rescorla*
7337
7338 * Add DTLS-SRTP negotiation from RFC 5764.
7339
7340 *Eric Rescorla*
7341
7342 * Add Next Protocol Negotiation,
7343 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be
7344 disabled with a no-npn flag to config or Configure. Code donated
7345 by Google.
7346
7347 *Adam Langley <[email protected]> and Ben Laurie*
7348
7349 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
7350 NIST-P256, NIST-P521, with constant-time single point multiplication on
7351 typical inputs. Compiler support for the nonstandard type `__uint128_t` is
7352 required to use this (present in gcc 4.4 and later, for 64-bit builds).
7353 Code made available under Apache License version 2.0.
7354
7355 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
7356 line to include this in your build of OpenSSL, and run "make depend" (or
7357 "make update"). This enables the following EC_METHODs:
7358
7359 EC_GFp_nistp224_method()
7360 EC_GFp_nistp256_method()
7361 EC_GFp_nistp521_method()
7362
7363 EC_GROUP_new_by_curve_name() will automatically use these (while
7364 EC_GROUP_new_curve_GFp() currently prefers the more flexible
7365 implementations).
7366
7367 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)*
7368
7369 * Use type ossl_ssize_t instead of ssize_t which isn't available on
7370 all platforms. Move ssize_t definition from e_os.h to the public
7371 header file e_os2.h as it now appears in public header file cms.h
7372
7373 *Steve Henson*
7374
7375 * New -sigopt option to the ca, req and x509 utilities. Additional
7376 signature parameters can be passed using this option and in
7377 particular PSS.
7378
7379 *Steve Henson*
7380
7381 * Add RSA PSS signing function. This will generate and set the
7382 appropriate AlgorithmIdentifiers for PSS based on those in the
7383 corresponding EVP_MD_CTX structure. No application support yet.
7384
7385 *Steve Henson*
7386
7387 * Support for companion algorithm specific ASN1 signing routines.
7388 New function ASN1_item_sign_ctx() signs a pre-initialised
7389 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
7390 the appropriate parameters.
7391
7392 *Steve Henson*
7393
7394 * Add new algorithm specific ASN1 verification initialisation function
7395 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
7396 handling will be the same no matter what EVP_PKEY_METHOD is used.
7397 Add a PSS handler to support verification of PSS signatures: checked
7398 against a number of sample certificates.
7399
7400 *Steve Henson*
7401
7402 * Add signature printing for PSS. Add PSS OIDs.
7403
7404 *Steve Henson, Martin Kaiser <[email protected]>*
7405
7406 * Add algorithm specific signature printing. An individual ASN1 method
7407 can now print out signatures instead of the standard hex dump.
7408
7409 More complex signatures (e.g. PSS) can print out more meaningful
7410 information. Include DSA version that prints out the signature
7411 parameters r, s.
7412
7413 *Steve Henson*
7414
7415 * Password based recipient info support for CMS library: implementing
7416 RFC3211.
7417
7418 *Steve Henson*
7419
7420 * Split password based encryption into PBES2 and PBKDF2 functions. This
7421 neatly separates the code into cipher and PBE sections and is required
7422 for some algorithms that split PBES2 into separate pieces (such as
7423 password based CMS).
7424
7425 *Steve Henson*
7426
7427 * Session-handling fixes:
7428 - Fix handling of connections that are resuming with a session ID,
7429 but also support Session Tickets.
7430 - Fix a bug that suppressed issuing of a new ticket if the client
7431 presented a ticket with an expired session.
7432 - Try to set the ticket lifetime hint to something reasonable.
7433 - Make tickets shorter by excluding irrelevant information.
7434 - On the client side, don't ignore renewed tickets.
7435
7436 *Adam Langley, Bodo Moeller (Google)*
7437
7438 * Fix PSK session representation.
7439
7440 *Bodo Moeller*
7441
7442 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
7443
7444 This work was sponsored by Intel.
7445
7446 *Andy Polyakov*
7447
7448 * Add GCM support to TLS library. Some custom code is needed to split
7449 the IV between the fixed (from PRF) and explicit (from TLS record)
7450 portions. This adds all GCM ciphersuites supported by RFC5288 and
7451 RFC5289. Generalise some `AES*` cipherstrings to include GCM and
7452 add a special AESGCM string for GCM only.
7453
7454 *Steve Henson*
7455
7456 * Expand range of ctrls for AES GCM. Permit setting invocation
7457 field on decrypt and retrieval of invocation field only on encrypt.
7458
7459 *Steve Henson*
7460
7461 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
7462 As required by RFC5289 these ciphersuites cannot be used if for
7463 versions of TLS earlier than 1.2.
7464
7465 *Steve Henson*
7466
7467 * For FIPS capable OpenSSL interpret a NULL default public key method
7468 as unset and return the appropriate default but do *not* set the default.
7469 This means we can return the appropriate method in applications that
7470 switch between FIPS and non-FIPS modes.
7471
7472 *Steve Henson*
7473
7474 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
7475 ENGINE is used then we cannot handle that in the FIPS module so we
7476 keep original code iff non-FIPS operations are allowed.
7477
7478 *Steve Henson*
7479
7480 * Add -attime option to openssl utilities.
7481
7482 *Peter Eckersley <[email protected]>, Ben Laurie and Steve Henson*
7483
7484 * Redirect DSA and DH operations to FIPS module in FIPS mode.
7485
7486 *Steve Henson*
7487
7488 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
7489 FIPS EC methods unconditionally for now.
7490
7491 *Steve Henson*
7492
7493 * New build option no-ec2m to disable characteristic 2 code.
7494
7495 *Steve Henson*
7496
7497 * Backport libcrypto audit of return value checking from 1.1.0-dev; not
7498 all cases can be covered as some introduce binary incompatibilities.
7499
7500 *Steve Henson*
7501
7502 * Redirect RSA operations to FIPS module including keygen,
7503 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
7504
7505 *Steve Henson*
7506
7507 * Add similar low-level API blocking to ciphers.
7508
7509 *Steve Henson*
7510
7511 * low-level digest APIs are not approved in FIPS mode: any attempt
7512 to use these will cause a fatal error. Applications that *really* want
7513 to use them can use the `private_*` version instead.
7514
7515 *Steve Henson*
7516
7517 * Redirect cipher operations to FIPS module for FIPS builds.
7518
7519 *Steve Henson*
7520
7521 * Redirect digest operations to FIPS module for FIPS builds.
7522
7523 *Steve Henson*
7524
7525 * Update build system to add "fips" flag which will link in fipscanister.o
7526 for static and shared library builds embedding a signature if needed.
7527
7528 *Steve Henson*
7529
7530 * Output TLS supported curves in preference order instead of numerical
7531 order. This is currently hardcoded for the highest order curves first.
7532 This should be configurable so applications can judge speed vs strength.
7533
7534 *Steve Henson*
7535
7536 * Add TLS v1.2 server support for client authentication.
7537
7538 *Steve Henson*
7539
7540 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
7541 and enable MD5.
7542
7543 *Steve Henson*
7544
7545 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying
7546 FIPS modules versions.
7547
7548 *Steve Henson*
7549
7550 * Add TLS v1.2 client side support for client authentication. Keep cache
7551 of handshake records longer as we don't know the hash algorithm to use
7552 until after the certificate request message is received.
7553
7554 *Steve Henson*
7555
7556 * Initial TLS v1.2 client support. Add a default signature algorithms
7557 extension including all the algorithms we support. Parse new signature
7558 format in client key exchange. Relax some ECC signing restrictions for
7559 TLS v1.2 as indicated in RFC5246.
7560
7561 *Steve Henson*
7562
7563 * Add server support for TLS v1.2 signature algorithms extension. Switch
7564 to new signature format when needed using client digest preference.
7565 All server ciphersuites should now work correctly in TLS v1.2. No client
7566 support yet and no support for client certificates.
7567
7568 *Steve Henson*
7569
7570 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
7571 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
7572 ciphersuites. At present only RSA key exchange ciphersuites work with
7573 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
7574 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
7575 and version checking.
7576
7577 *Steve Henson*
7578
7579 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
7580 with this defined it will not be affected by any changes to ssl internal
7581 structures. Add several utility functions to allow openssl application
7582 to work with OPENSSL_NO_SSL_INTERN defined.
7583
7584 *Steve Henson*
7585
7586 * A long standing patch to add support for SRP from EdelWeb (Peter
7587 Sylvester and Christophe Renou) was integrated.
7588 *Christophe Renou <[email protected]>, Peter Sylvester
7589 <[email protected]>, Tom Wu <[email protected]>, and
7590 Ben Laurie*
7591
7592 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
7593
7594 *Steve Henson*
7595
7596 * Permit abbreviated handshakes when renegotiating using the function
7597 SSL_renegotiate_abbreviated().
7598
7599 *Robin Seggelmann <[email protected]>*
7600
7601 * Add call to ENGINE_register_all_complete() to
7602 ENGINE_load_builtin_engines(), so some implementations get used
7603 automatically instead of needing explicit application support.
7604
7605 *Steve Henson*
7606
7607 * Add support for TLS key exporter as described in RFC5705.
7608
7609 *Robin Seggelmann <[email protected]>, Steve Henson*
7610
7611 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
7612 a few changes are required:
7613
7614 Add SSL_OP_NO_TLSv1_1 flag.
7615 Add TLSv1_1 methods.
7616 Update version checking logic to handle version 1.1.
7617 Add explicit IV handling (ported from DTLS code).
7618 Add command line options to s_client/s_server.
7619
7620 *Steve Henson*
7621
7622OpenSSL 1.0.0
7623-------------
7624
7625### Changes between 1.0.0s and 1.0.0t [3 Dec 2015]
7626
7627 * X509_ATTRIBUTE memory leak
7628
7629 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
7630 memory. This structure is used by the PKCS#7 and CMS routines so any
7631 application which reads PKCS#7 or CMS data from untrusted sources is
7632 affected. SSL/TLS is not affected.
7633
7634 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
7635 libFuzzer.
7636 ([CVE-2015-3195])
7637
7638 *Stephen Henson*
7639
7640 * Race condition handling PSK identify hint
7641
7642 If PSK identity hints are received by a multi-threaded client then
7643 the values are wrongly updated in the parent SSL_CTX structure. This can
7644 result in a race condition potentially leading to a double free of the
7645 identify hint data.
7646 ([CVE-2015-3196])
7647
7648 *Stephen Henson*
7649
7650### Changes between 1.0.0r and 1.0.0s [11 Jun 2015]
7651
7652 * Malformed ECParameters causes infinite loop
7653
7654 When processing an ECParameters structure OpenSSL enters an infinite loop
7655 if the curve specified is over a specially malformed binary polynomial
7656 field.
7657
7658 This can be used to perform denial of service against any
7659 system which processes public keys, certificate requests or
7660 certificates. This includes TLS clients and TLS servers with
7661 client authentication enabled.
7662
7663 This issue was reported to OpenSSL by Joseph Barr-Pixton.
7664 ([CVE-2015-1788])
7665
7666 *Andy Polyakov*
7667
7668 * Exploitable out-of-bounds read in X509_cmp_time
7669
7670 X509_cmp_time does not properly check the length of the ASN1_TIME
7671 string and can read a few bytes out of bounds. In addition,
7672 X509_cmp_time accepts an arbitrary number of fractional seconds in the
7673 time string.
7674
7675 An attacker can use this to craft malformed certificates and CRLs of
7676 various sizes and potentially cause a segmentation fault, resulting in
7677 a DoS on applications that verify certificates or CRLs. TLS clients
7678 that verify CRLs are affected. TLS clients and servers with client
7679 authentication enabled may be affected if they use custom verification
7680 callbacks.
7681
7682 This issue was reported to OpenSSL by Robert Swiecki (Google), and
7683 independently by Hanno Böck.
7684 ([CVE-2015-1789])
7685
7686 *Emilia Käsper*
7687
7688 * PKCS7 crash with missing EnvelopedContent
7689
7690 The PKCS#7 parsing code does not handle missing inner EncryptedContent
7691 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
7692 with missing content and trigger a NULL pointer dereference on parsing.
7693
7694 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
7695 structures from untrusted sources are affected. OpenSSL clients and
7696 servers are not affected.
7697
7698 This issue was reported to OpenSSL by Michal Zalewski (Google).
7699 ([CVE-2015-1790])
7700
7701 *Emilia Käsper*
7702
7703 * CMS verify infinite loop with unknown hash function
7704
7705 When verifying a signedData message the CMS code can enter an infinite loop
7706 if presented with an unknown hash function OID. This can be used to perform
7707 denial of service against any system which verifies signedData messages using
7708 the CMS code.
7709 This issue was reported to OpenSSL by Johannes Bauer.
7710 ([CVE-2015-1792])
7711
7712 *Stephen Henson*
7713
7714 * Race condition handling NewSessionTicket
7715
7716 If a NewSessionTicket is received by a multi-threaded client when attempting to
7717 reuse a previous ticket then a race condition can occur potentially leading to
7718 a double free of the ticket data.
7719 ([CVE-2015-1791])
7720
7721 *Matt Caswell*
7722
7723### Changes between 1.0.0q and 1.0.0r [19 Mar 2015]
7724
7725 * Segmentation fault in ASN1_TYPE_cmp fix
7726
7727 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
7728 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
7729 certificate signature algorithm consistency this can be used to crash any
7730 certificate verification operation and exploited in a DoS attack. Any
7731 application which performs certificate verification is vulnerable including
7732 OpenSSL clients and servers which enable client authentication.
7733 ([CVE-2015-0286])
7734
7735 *Stephen Henson*
7736
7737 * ASN.1 structure reuse memory corruption fix
7738
7739 Reusing a structure in ASN.1 parsing may allow an attacker to cause
7740 memory corruption via an invalid write. Such reuse is and has been
7741 strongly discouraged and is believed to be rare.
7742
7743 Applications that parse structures containing CHOICE or ANY DEFINED BY
7744 components may be affected. Certificate parsing (d2i_X509 and related
7745 functions) are however not affected. OpenSSL clients and servers are
7746 not affected.
7747 ([CVE-2015-0287])
7748
7749 *Stephen Henson*
7750
7751 * PKCS7 NULL pointer dereferences fix
7752
7753 The PKCS#7 parsing code does not handle missing outer ContentInfo
7754 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
7755 missing content and trigger a NULL pointer dereference on parsing.
7756
7757 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
7758 otherwise parse PKCS#7 structures from untrusted sources are
7759 affected. OpenSSL clients and servers are not affected.
7760
7761 This issue was reported to OpenSSL by Michal Zalewski (Google).
7762 ([CVE-2015-0289])
7763
7764 *Emilia Käsper*
7765
7766 * DoS via reachable assert in SSLv2 servers fix
7767
7768 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
7769 servers that both support SSLv2 and enable export cipher suites by sending
7770 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
7771
7772 This issue was discovered by Sean Burford (Google) and Emilia Käsper
7773 (OpenSSL development team).
7774 ([CVE-2015-0293])
7775
7776 *Emilia Käsper*
7777
7778 * Use After Free following d2i_ECPrivatekey error fix
7779
7780 A malformed EC private key file consumed via the d2i_ECPrivateKey function
7781 could cause a use after free condition. This, in turn, could cause a double
7782 free in several private key parsing functions (such as d2i_PrivateKey
7783 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
7784 for applications that receive EC private keys from untrusted
7785 sources. This scenario is considered rare.
7786
7787 This issue was discovered by the BoringSSL project and fixed in their
7788 commit 517073cd4b.
7789 ([CVE-2015-0209])
7790
7791 *Matt Caswell*
7792
7793 * X509_to_X509_REQ NULL pointer deref fix
7794
7795 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
7796 the certificate key is invalid. This function is rarely used in practice.
7797
7798 This issue was discovered by Brian Carpenter.
7799 ([CVE-2015-0288])
7800
7801 *Stephen Henson*
7802
7803 * Removed the export ciphers from the DEFAULT ciphers
7804
7805 *Kurt Roeckx*
7806
7807### Changes between 1.0.0p and 1.0.0q [15 Jan 2015]
7808
7809 * Build fixes for the Windows and OpenVMS platforms
7810
7811 *Matt Caswell and Richard Levitte*
7812
7813### Changes between 1.0.0o and 1.0.0p [8 Jan 2015]
7814
7815 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
7816 message can cause a segmentation fault in OpenSSL due to a NULL pointer
7817 dereference. This could lead to a Denial Of Service attack. Thanks to
7818 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
7819 ([CVE-2014-3571])
7820
7821 *Steve Henson*
7822
7823 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
7824 dtls1_buffer_record function under certain conditions. In particular this
7825 could occur if an attacker sent repeated DTLS records with the same
7826 sequence number but for the next epoch. The memory leak could be exploited
7827 by an attacker in a Denial of Service attack through memory exhaustion.
7828 Thanks to Chris Mueller for reporting this issue.
7829 ([CVE-2015-0206])
7830
7831 *Matt Caswell*
7832
7833 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
7834 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
7835 method would be set to NULL which could later result in a NULL pointer
7836 dereference. Thanks to Frank Schmirler for reporting this issue.
7837 ([CVE-2014-3569])
7838
7839 *Kurt Roeckx*
7840
7841 * Abort handshake if server key exchange message is omitted for ephemeral
7842 ECDH ciphersuites.
7843
7844 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
7845 reporting this issue.
7846 ([CVE-2014-3572])
7847
7848 *Steve Henson*
7849
7850 * Remove non-export ephemeral RSA code on client and server. This code
7851 violated the TLS standard by allowing the use of temporary RSA keys in
7852 non-export ciphersuites and could be used by a server to effectively
7853 downgrade the RSA key length used to a value smaller than the server
7854 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
7855 INRIA or reporting this issue.
7856 ([CVE-2015-0204])
7857
7858 *Steve Henson*
7859
7860 * Fixed issue where DH client certificates are accepted without verification.
7861 An OpenSSL server will accept a DH certificate for client authentication
7862 without the certificate verify message. This effectively allows a client to
7863 authenticate without the use of a private key. This only affects servers
7864 which trust a client certificate authority which issues certificates
7865 containing DH keys: these are extremely rare and hardly ever encountered.
7866 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
7867 this issue.
7868 ([CVE-2015-0205])
7869
7870 *Steve Henson*
7871
7872 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
7873 results on some platforms, including x86_64. This bug occurs at random
7874 with a very low probability, and is not known to be exploitable in any
7875 way, though its exact impact is difficult to determine. Thanks to Pieter
7876 Wuille (Blockstream) who reported this issue and also suggested an initial
7877 fix. Further analysis was conducted by the OpenSSL development team and
7878 Adam Langley of Google. The final fix was developed by Andy Polyakov of
7879 the OpenSSL core team.
7880 ([CVE-2014-3570])
7881
7882 *Andy Polyakov*
7883
7884 * Fix various certificate fingerprint issues.
7885
7886 By using non-DER or invalid encodings outside the signed portion of a
7887 certificate the fingerprint can be changed without breaking the signature.
7888 Although no details of the signed portion of the certificate can be changed
7889 this can cause problems with some applications: e.g. those using the
7890 certificate fingerprint for blacklists.
7891
7892 1. Reject signatures with non zero unused bits.
7893
7894 If the BIT STRING containing the signature has non zero unused bits reject
7895 the signature. All current signature algorithms require zero unused bits.
7896
7897 2. Check certificate algorithm consistency.
7898
7899 Check the AlgorithmIdentifier inside TBS matches the one in the
7900 certificate signature. NB: this will result in signature failure
7901 errors for some broken certificates.
7902
7903 Thanks to Konrad Kraszewski from Google for reporting this issue.
7904
7905 3. Check DSA/ECDSA signatures use DER.
7906
7907 Reencode DSA/ECDSA signatures and compare with the original received
7908 signature. Return an error if there is a mismatch.
7909
7910 This will reject various cases including garbage after signature
7911 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
7912 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
7913 (negative or with leading zeroes).
7914
7915 Further analysis was conducted and fixes were developed by Stephen Henson
7916 of the OpenSSL core team.
7917
7918 ([CVE-2014-8275])
7919
7920 *Steve Henson*
7921
7922### Changes between 1.0.0n and 1.0.0o [15 Oct 2014]
7923
7924 * Session Ticket Memory Leak.
7925
7926 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
7927 integrity of that ticket is first verified. In the event of a session
7928 ticket integrity check failing, OpenSSL will fail to free memory
7929 causing a memory leak. By sending a large number of invalid session
7930 tickets an attacker could exploit this issue in a Denial Of Service
7931 attack.
7932 ([CVE-2014-3567])
7933
7934 *Steve Henson*
7935
7936 * Build option no-ssl3 is incomplete.
7937
7938 When OpenSSL is configured with "no-ssl3" as a build option, servers
7939 could accept and complete a SSL 3.0 handshake, and clients could be
7940 configured to send them.
7941 ([CVE-2014-3568])
7942
7943 *Akamai and the OpenSSL team*
7944
7945 * Add support for TLS_FALLBACK_SCSV.
7946 Client applications doing fallback retries should call
7947 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
7948 ([CVE-2014-3566])
7949
7950 *Adam Langley, Bodo Moeller*
7951
7952 * Add additional DigestInfo checks.
7953
7954 Reencode DigestInto in DER and check against the original when
7955 verifying RSA signature: this will reject any improperly encoded
7956 DigestInfo structures.
7957
7958 Note: this is a precautionary measure and no attacks are currently known.
7959
7960 *Steve Henson*
7961
7962### Changes between 1.0.0m and 1.0.0n [6 Aug 2014]
7963
7964 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
7965 to a denial of service attack. A malicious server can crash the client
7966 with a null pointer dereference (read) by specifying an anonymous (EC)DH
7967 ciphersuite and sending carefully crafted handshake messages.
7968
7969 Thanks to Felix Gröbert (Google) for discovering and researching this
7970 issue.
7971 ([CVE-2014-3510])
7972
7973 *Emilia Käsper*
7974
7975 * By sending carefully crafted DTLS packets an attacker could cause openssl
7976 to leak memory. This can be exploited through a Denial of Service attack.
7977 Thanks to Adam Langley for discovering and researching this issue.
7978 ([CVE-2014-3507])
7979
7980 *Adam Langley*
7981
7982 * An attacker can force openssl to consume large amounts of memory whilst
7983 processing DTLS handshake messages. This can be exploited through a
7984 Denial of Service attack.
7985 Thanks to Adam Langley for discovering and researching this issue.
7986 ([CVE-2014-3506])
7987
7988 *Adam Langley*
7989
7990 * An attacker can force an error condition which causes openssl to crash
7991 whilst processing DTLS packets due to memory being freed twice. This
7992 can be exploited through a Denial of Service attack.
7993 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
7994 this issue.
7995 ([CVE-2014-3505])
7996
7997 *Adam Langley*
7998
7999 * If a multithreaded client connects to a malicious server using a resumed
8000 session and the server sends an ec point format extension it could write
8001 up to 255 bytes to freed memory.
8002
8003 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
8004 issue.
8005 ([CVE-2014-3509])
8006
8007 *Gabor Tyukasz*
8008
8009 * A flaw in OBJ_obj2txt may cause pretty printing functions such as
8010 X509_name_oneline, X509_name_print_ex et al. to leak some information
8011 from the stack. Applications may be affected if they echo pretty printing
8012 output to the attacker.
8013
8014 Thanks to Ivan Fratric (Google) for discovering this issue.
8015 ([CVE-2014-3508])
8016
8017 *Emilia Käsper, and Steve Henson*
8018
8019 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
8020 for corner cases. (Certain input points at infinity could lead to
8021 bogus results, with non-infinity inputs mapped to infinity too.)
8022
8023 *Bodo Moeller*
8024
8025### Changes between 1.0.0l and 1.0.0m [5 Jun 2014]
8026
8027 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
8028 handshake can force the use of weak keying material in OpenSSL
8029 SSL/TLS clients and servers.
8030
8031 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
8032 researching this issue. ([CVE-2014-0224])
8033
8034 *KIKUCHI Masashi, Steve Henson*
8035
8036 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
8037 OpenSSL DTLS client the code can be made to recurse eventually crashing
8038 in a DoS attack.
8039
8040 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
8041 ([CVE-2014-0221])
8042
8043 *Imre Rad, Steve Henson*
8044
8045 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
8046 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
8047 client or server. This is potentially exploitable to run arbitrary
8048 code on a vulnerable client or server.
8049
8050 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195])
8051
8052 *Jüri Aedla, Steve Henson*
8053
8054 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
8055 are subject to a denial of service attack.
8056
8057 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
8058 this issue. ([CVE-2014-3470])
8059
8060 *Felix Gröbert, Ivan Fratric, Steve Henson*
8061
8062 * Harmonize version and its documentation. -f flag is used to display
8063 compilation flags.
8064
8065 *mancha <[email protected]>*
8066
8067 * Fix eckey_priv_encode so it immediately returns an error upon a failure
8068 in i2d_ECPrivateKey.
8069
8070 *mancha <[email protected]>*
8071
8072 * Fix some double frees. These are not thought to be exploitable.
8073
8074 *mancha <[email protected]>*
8075
8076 * Fix for the attack described in the paper "Recovering OpenSSL
8077 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
8078 by Yuval Yarom and Naomi Benger. Details can be obtained from:
8079 <http://eprint.iacr.org/2014/140>
8080
8081 Thanks to Yuval Yarom and Naomi Benger for discovering this
8082 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076])
8083
8084 *Yuval Yarom and Naomi Benger*
8085
8086### Changes between 1.0.0k and 1.0.0l [6 Jan 2014]
8087
8088 * Keep original DTLS digest and encryption contexts in retransmission
8089 structures so we can use the previous session parameters if they need
8090 to be resent. ([CVE-2013-6450])
8091
8092 *Steve Henson*
8093
8094 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
8095 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
8096 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
8097 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
8098 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
8099 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
8100
8101 *Rob Stradling, Adam Langley*
8102
8103### Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
8104
8105 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
8106
8107 This addresses the flaw in CBC record processing discovered by
8108 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
8109 at: <http://www.isg.rhul.ac.uk/tls/>
8110
8111 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
8112 Security Group at Royal Holloway, University of London
8113 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
8114 Emilia Käsper for the initial patch.
8115 ([CVE-2013-0169])
8116
8117 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson*
8118
8119 * Return an error when checking OCSP signatures when key is NULL.
8120 This fixes a DoS attack. ([CVE-2013-0166])
8121
8122 *Steve Henson*
8123
8124 * Call OCSP Stapling callback after ciphersuite has been chosen, so
8125 the right response is stapled. Also change SSL_get_certificate()
8126 so it returns the certificate actually sent.
8127 See <http://rt.openssl.org/Ticket/Display.html?id=2836>.
8128 (This is a backport)
8129
8130 *Rob Stradling <[email protected]>*
8131
8132 * Fix possible deadlock when decoding public keys.
8133
8134 *Steve Henson*
8135
8136### Changes between 1.0.0i and 1.0.0j [10 May 2012]
8137
8138[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
8139OpenSSL 1.0.1.]
8140
8141 * Sanity check record length before skipping explicit IV in DTLS
8142 to fix DoS attack.
8143
8144 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
8145 fuzzing as a service testing platform.
8146 ([CVE-2012-2333])
8147
8148 *Steve Henson*
8149
8150 * Initialise tkeylen properly when encrypting CMS messages.
8151 Thanks to Solar Designer of Openwall for reporting this issue.
8152
8153 *Steve Henson*
8154
8155### Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
8156
8157 * Check for potentially exploitable overflows in asn1_d2i_read_bio
8158 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
8159 in CRYPTO_realloc_clean.
8160
8161 Thanks to Tavis Ormandy, Google Security Team, for discovering this
8162 issue and to Adam Langley <[email protected]> for fixing it.
8163 ([CVE-2012-2110])
8164
8165 *Adam Langley (Google), Tavis Ormandy, Google Security Team*
8166
8167### Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
8168
8169 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
8170 in CMS and PKCS7 code. When RSA decryption fails use a random key for
8171 content decryption and always return the same error. Note: this attack
8172 needs on average 2^20 messages so it only affects automated senders. The
8173 old behaviour can be re-enabled in the CMS code by setting the
8174 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
8175 an MMA defence is not necessary.
8176 Thanks to Ivan Nestlerode <[email protected]> for discovering
8177 this issue. ([CVE-2012-0884])
8178
8179 *Steve Henson*
8180
8181 * Fix CVE-2011-4619: make sure we really are receiving a
8182 client hello before rejecting multiple SGC restarts. Thanks to
8183 Ivan Nestlerode <[email protected]> for discovering this bug.
8184
8185 *Steve Henson*
8186
8187### Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
8188
8189 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
8190 Thanks to Antonio Martin, Enterprise Secure Access Research and
8191 Development, Cisco Systems, Inc. for discovering this bug and
8192 preparing a fix. ([CVE-2012-0050])
8193
8194 *Antonio Martin*
8195
8196### Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
8197
8198 * Nadhem Alfardan and Kenny Paterson have discovered an extension
8199 of the Vaudenay padding oracle attack on CBC mode encryption
8200 which enables an efficient plaintext recovery attack against
8201 the OpenSSL implementation of DTLS. Their attack exploits timing
8202 differences arising during decryption processing. A research
8203 paper describing this attack can be found at:
8204 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf>
8205 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
8206 Security Group at Royal Holloway, University of London
8207 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
8208 <[email protected]> and Michael Tuexen <[email protected]>
8209 for preparing the fix. ([CVE-2011-4108])
8210
8211 *Robin Seggelmann, Michael Tuexen*
8212
8213 * Clear bytes used for block padding of SSL 3.0 records.
8214 ([CVE-2011-4576])
8215
8216 *Adam Langley (Google)*
8217
8218 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George
8219 Kadianakis <[email protected]> for discovering this issue and
8220 Adam Langley for preparing the fix. ([CVE-2011-4619])
8221
8222 *Adam Langley (Google)*
8223
8224 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027])
8225
8226 *Andrey Kulikov <[email protected]>*
8227
8228 * Prevent malformed RFC3779 data triggering an assertion failure.
8229 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
8230 and Rob Austein <[email protected]> for fixing it. ([CVE-2011-4577])
8231
8232 *Rob Austein <[email protected]>*
8233
8234 * Improved PRNG seeding for VOS.
8235
8236 *Paul Green <[email protected]>*
8237
8238 * Fix ssl_ciph.c set-up race.
8239
8240 *Adam Langley (Google)*
8241
8242 * Fix spurious failures in ecdsatest.c.
8243
8244 *Emilia Käsper (Google)*
8245
8246 * Fix the BIO_f_buffer() implementation (which was mixing different
8247 interpretations of the `..._len` fields).
8248
8249 *Adam Langley (Google)*
8250
8251 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
8252 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
8253 threads won't reuse the same blinding coefficients.
8254
8255 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
8256 lock to call BN_BLINDING_invert_ex, and avoids one use of
8257 BN_BLINDING_update for each BN_BLINDING structure (previously,
8258 the last update always remained unused).
8259
8260 *Emilia Käsper (Google)*
8261
8262 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
8263
8264 *Bob Buckholz (Google)*
8265
8266### Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
8267
8268 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted
8269 by initialising X509_STORE_CTX properly. ([CVE-2011-3207])
8270
8271 *Kaspar Brand <[email protected]>*
8272
8273 * Fix SSL memory handling for (EC)DH ciphersuites, in particular
8274 for multi-threaded use of ECDH. ([CVE-2011-3210])
8275
8276 *Adam Langley (Google)*
8277
8278 * Fix x509_name_ex_d2i memory leak on bad inputs.
8279
8280 *Bodo Moeller*
8281
8282 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
8283 signature public key algorithm by using OID xref utilities instead.
8284 Before this you could only use some ECC ciphersuites with SHA1 only.
8285
8286 *Steve Henson*
8287
8288 * Add protection against ECDSA timing attacks as mentioned in the paper
8289 by Billy Bob Brumley and Nicola Tuveri, see:
8290 <http://eprint.iacr.org/2011/232.pdf>
8291
8292 *Billy Bob Brumley and Nicola Tuveri*
8293
8294### Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
8295
8296 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
8297
8298 *Neel Mehta, Adam Langley, Bodo Moeller (Google)*
8299
8300 * Fix bug in string printing code: if *any* escaping is enabled we must
8301 escape the escape character (backslash) or the resulting string is
8302 ambiguous.
8303
8304 *Steve Henson*
8305
8306### Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
8307
8308 * Disable code workaround for ancient and obsolete Netscape browsers
8309 and servers: an attacker can use it in a ciphersuite downgrade attack.
8310 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
8311
8312 *Steve Henson*
8313
8314 * Fixed J-PAKE implementation error, originally discovered by
8315 Sebastien Martini, further info and confirmation from Stefan
8316 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
8317
8318 *Ben Laurie*
8319
8320### Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
8321
8322 * Fix extension code to avoid race conditions which can result in a buffer
8323 overrun vulnerability: resumed sessions must not be modified as they can
8324 be shared by multiple threads. CVE-2010-3864
8325
8326 *Steve Henson*
8327
8328 * Fix WIN32 build system to correctly link an ENGINE directory into
8329 a DLL.
8330
8331 *Steve Henson*
8332
8333### Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
8334
8335 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover
8336 ([CVE-2010-1633])
8337
8338 *Steve Henson, Peter-Michael Hager <[email protected]>*
8339
8340### Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
8341
8342 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
8343 context. The operation can be customised via the ctrl mechanism in
8344 case ENGINEs want to include additional functionality.
8345
8346 *Steve Henson*
8347
8348 * Tolerate yet another broken PKCS#8 key format: private key value negative.
8349
8350 *Steve Henson*
8351
8352 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
8353 output hashes compatible with older versions of OpenSSL.
8354
8355 *Willy Weisz <[email protected]>*
8356
8357 * Fix compression algorithm handling: if resuming a session use the
8358 compression algorithm of the resumed session instead of determining
8359 it from client hello again. Don't allow server to change algorithm.
8360
8361 *Steve Henson*
8362
8363 * Add load_crls() function to commands tidying load_certs() too. Add option
8364 to verify utility to allow additional CRLs to be included.
8365
8366 *Steve Henson*
8367
8368 * Update OCSP request code to permit adding custom headers to the request:
8369 some responders need this.
8370
8371 *Steve Henson*
8372
8373 * The function EVP_PKEY_sign() returns <=0 on error: check return code
8374 correctly.
8375
8376 *Julia Lawall <[email protected]>*
8377
8378 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it
8379 needlessly dereferenced structures, used obsolete functions and
8380 didn't handle all updated verify codes correctly.
8381
8382 *Steve Henson*
8383
8384 * Disable MD2 in the default configuration.
8385
8386 *Steve Henson*
8387
8388 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
8389 indicate the initial BIO being pushed or popped. This makes it possible
8390 to determine whether the BIO is the one explicitly called or as a result
8391 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
8392 it handles reference counts correctly and doesn't zero out the I/O bio
8393 when it is not being explicitly popped. WARNING: applications which
8394 included workarounds for the old buggy behaviour will need to be modified
8395 or they could free up already freed BIOs.
8396
8397 *Steve Henson*
8398
8399 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
8400 renaming to all platforms (within the 0.9.8 branch, this was
8401 done conditionally on Netware platforms to avoid a name clash).
8402
8403 *Guenter <[email protected]>*
8404
8405 * Add ECDHE and PSK support to DTLS.
8406
8407 *Michael Tuexen <[email protected]>*
8408
8409 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
8410 be used on C++.
8411
8412 *Steve Henson*
8413
8414 * Add "missing" function EVP_MD_flags() (without this the only way to
8415 retrieve a digest flags is by accessing the structure directly. Update
8416 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest
8417 or cipher is registered as in the "from" argument. Print out all
8418 registered digests in the dgst usage message instead of manually
8419 attempting to work them out.
8420
8421 *Steve Henson*
8422
8423 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
8424 this allows the use of compression and extensions. Change default cipher
8425 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
8426 by default unless an application cipher string requests it.
8427
8428 *Steve Henson*
8429
8430 * Alter match criteria in PKCS12_parse(). It used to try to use local
8431 key ids to find matching certificates and keys but some PKCS#12 files
8432 don't follow the (somewhat unwritten) rules and this strategy fails.
8433 Now just gather all certificates together and the first private key
8434 then look for the first certificate that matches the key.
8435
8436 *Steve Henson*
8437
8438 * Support use of registered digest and cipher names for dgst and cipher
8439 commands instead of having to add each one as a special case. So now
8440 you can do:
8441
8442 openssl sha256 foo
8443
8444 as well as:
8445
8446 openssl dgst -sha256 foo
8447
8448 and this works for ENGINE based algorithms too.
8449
8450 *Steve Henson*
8451
8452 * Update Gost ENGINE to support parameter files.
8453
8454 *Victor B. Wagner <[email protected]>*
8455
8456 * Support GeneralizedTime in ca utility.
8457
8458 *Oliver Martin <[email protected]>, Steve Henson*
8459
8460 * Enhance the hash format used for certificate directory links. The new
8461 form uses the canonical encoding (meaning equivalent names will work
8462 even if they aren't identical) and uses SHA1 instead of MD5. This form
8463 is incompatible with the older format and as a result c_rehash should
8464 be used to rebuild symbolic links.
8465
8466 *Steve Henson*
8467
8468 * Make PKCS#8 the default write format for private keys, replacing the
8469 traditional format. This form is standardised, more secure and doesn't
8470 include an implicit MD5 dependency.
8471
8472 *Steve Henson*
8473
8474 * Add a $gcc_devteam_warn option to Configure. The idea is that any code
8475 committed to OpenSSL should pass this lot as a minimum.
8476
8477 *Steve Henson*
8478
8479 * Add session ticket override functionality for use by EAP-FAST.
8480
8481 *Jouni Malinen <[email protected]>*
8482
8483 * Modify HMAC functions to return a value. Since these can be implemented
8484 in an ENGINE errors can occur.
8485
8486 *Steve Henson*
8487
8488 * Type-checked OBJ_bsearch_ex.
8489
8490 *Ben Laurie*
8491
8492 * Type-checked OBJ_bsearch. Also some constification necessitated
8493 by type-checking. Still to come: TXT_DB, bsearch(?),
8494 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
8495 CONF_VALUE.
8496
8497 *Ben Laurie*
8498
8499 * New function OPENSSL_gmtime_adj() to add a specific number of days and
8500 seconds to a tm structure directly, instead of going through OS
8501 specific date routines. This avoids any issues with OS routines such
8502 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures
8503 and X509_time_adj_ex() to cover the extended range. The existing
8504 X509_time_adj() is still usable and will no longer have any date issues.
8505
8506 *Steve Henson*
8507
8508 * Delta CRL support. New use deltas option which will attempt to locate
8509 and search any appropriate delta CRLs available.
8510
8511 This work was sponsored by Google.
8512
8513 *Steve Henson*
8514
8515 * Support for CRLs partitioned by reason code. Reorganise CRL processing
8516 code and add additional score elements. Validate alternate CRL paths
8517 as part of the CRL checking and indicate a new error "CRL path validation
8518 error" in this case. Applications wanting additional details can use
8519 the verify callback and check the new "parent" field. If this is not
8520 NULL CRL path validation is taking place. Existing applications won't
8521 see this because it requires extended CRL support which is off by
8522 default.
8523
8524 This work was sponsored by Google.
8525
8526 *Steve Henson*
8527
8528 * Support for freshest CRL extension.
8529
8530 This work was sponsored by Google.
8531
8532 *Steve Henson*
8533
8534 * Initial indirect CRL support. Currently only supported in the CRLs
8535 passed directly and not via lookup. Process certificate issuer
8536 CRL entry extension and lookup CRL entries by bother issuer name
8537 and serial number. Check and process CRL issuer entry in IDP extension.
8538
8539 This work was sponsored by Google.
8540
8541 *Steve Henson*
8542
8543 * Add support for distinct certificate and CRL paths. The CRL issuer
8544 certificate is validated separately in this case. Only enabled if
8545 an extended CRL support flag is set: this flag will enable additional
8546 CRL functionality in future.
8547
8548 This work was sponsored by Google.
8549
8550 *Steve Henson*
8551
8552 * Add support for policy mappings extension.
8553
8554 This work was sponsored by Google.
8555
8556 *Steve Henson*
8557
8558 * Fixes to pathlength constraint, self issued certificate handling,
8559 policy processing to align with RFC3280 and PKITS tests.
8560
8561 This work was sponsored by Google.
8562
8563 *Steve Henson*
8564
8565 * Support for name constraints certificate extension. DN, email, DNS
8566 and URI types are currently supported.
8567
8568 This work was sponsored by Google.
8569
8570 *Steve Henson*
8571
8572 * To cater for systems that provide a pointer-based thread ID rather
8573 than numeric, deprecate the current numeric thread ID mechanism and
8574 replace it with a structure and associated callback type. This
8575 mechanism allows a numeric "hash" to be extracted from a thread ID in
8576 either case, and on platforms where pointers are larger than 'long',
8577 mixing is done to help ensure the numeric 'hash' is usable even if it
8578 can't be guaranteed unique. The default mechanism is to use "&errno"
8579 as a pointer-based thread ID to distinguish between threads.
8580
8581 Applications that want to provide their own thread IDs should now use
8582 CRYPTO_THREADID_set_callback() to register a callback that will call
8583 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
8584
8585 Note that ERR_remove_state() is now deprecated, because it is tied
8586 to the assumption that thread IDs are numeric. ERR_remove_state(0)
8587 to free the current thread's error state should be replaced by
8588 ERR_remove_thread_state(NULL).
8589
8590 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
8591 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
8592 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
8593 application was previously providing a numeric thread callback that
8594 was inappropriate for distinguishing threads, then uniqueness might
8595 have been obtained with &errno that happened immediately in the
8596 intermediate development versions of OpenSSL; this is no longer the
8597 case, the numeric thread callback will now override the automatic use
8598 of &errno.)
8599
8600 *Geoff Thorpe, with help from Bodo Moeller*
8601
8602 * Initial support for different CRL issuing certificates. This covers a
8603 simple case where the self issued certificates in the chain exist and
8604 the real CRL issuer is higher in the existing chain.
8605
8606 This work was sponsored by Google.
8607
8608 *Steve Henson*
8609
8610 * Removed effectively defunct crypto/store from the build.
8611
8612 *Ben Laurie*
8613
8614 * Revamp of STACK to provide stronger type-checking. Still to come:
8615 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
8616 ASN1_STRING, CONF_VALUE.
8617
8618 *Ben Laurie*
8619
8620 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
8621 RAM on SSL connections. This option can save about 34k per idle SSL.
8622
8623 *Nick Mathewson*
8624
8625 * Revamp of LHASH to provide stronger type-checking. Still to come:
8626 STACK, TXT_DB, bsearch, qsort.
8627
8628 *Ben Laurie*
8629
8630 * Initial support for Cryptographic Message Syntax (aka CMS) based
8631 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
8632 support for data, signedData, compressedData, digestedData and
8633 encryptedData, envelopedData types included. Scripts to check against
8634 RFC4134 examples draft and interop and consistency checks of many
8635 content types and variants.
8636
8637 *Steve Henson*
8638
8639 * Add options to enc utility to support use of zlib compression BIO.
8640
8641 *Steve Henson*
8642
8643 * Extend mk1mf to support importing of options and assembly language
8644 files from Configure script, currently only included in VC-WIN32.
8645 The assembly language rules can now optionally generate the source
8646 files from the associated perl scripts.
8647
8648 *Steve Henson*
8649
8650 * Implement remaining functionality needed to support GOST ciphersuites.
8651 Interop testing has been performed using CryptoPro implementations.
8652
8653 *Victor B. Wagner <[email protected]>*
8654
8655 * s390x assembler pack.
8656
8657 *Andy Polyakov*
8658
8659 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
8660 "family."
8661
8662 *Andy Polyakov*
8663
8664 * Implement Opaque PRF Input TLS extension as specified in
8665 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
8666 official specification yet and no extension type assignment by
8667 IANA exists, this extension (for now) will have to be explicitly
8668 enabled when building OpenSSL by providing the extension number
8669 to use. For example, specify an option
8670
8671 -DTLSEXT_TYPE_opaque_prf_input=0x9527
8672
8673 to the "config" or "Configure" script to enable the extension,
8674 assuming extension number 0x9527 (which is a completely arbitrary
8675 and unofficial assignment based on the MD5 hash of the Internet
8676 Draft). Note that by doing so, you potentially lose
8677 interoperability with other TLS implementations since these might
8678 be using the same extension number for other purposes.
8679
8680 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
8681 opaque PRF input value to use in the handshake. This will create
8682 an internal copy of the length-'len' string at 'src', and will
8683 return non-zero for success.
8684
8685 To get more control and flexibility, provide a callback function
8686 by using
8687
8688 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
8689 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
8690
8691 where
8692
8693 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
8694 void *arg;
8695
8696 Callback function 'cb' will be called in handshakes, and is
8697 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
8698 Argument 'arg' is for application purposes (the value as given to
8699 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
8700 be provided to the callback function). The callback function
8701 has to return non-zero to report success: usually 1 to use opaque
8702 PRF input just if possible, or 2 to enforce use of the opaque PRF
8703 input. In the latter case, the library will abort the handshake
8704 if opaque PRF input is not successfully negotiated.
8705
8706 Arguments 'peerinput' and 'len' given to the callback function
8707 will always be NULL and 0 in the case of a client. A server will
8708 see the client's opaque PRF input through these variables if
8709 available (NULL and 0 otherwise). Note that if the server
8710 provides an opaque PRF input, the length must be the same as the
8711 length of the client's opaque PRF input.
8712
8713 Note that the callback function will only be called when creating
8714 a new session (session resumption can resume whatever was
8715 previously negotiated), and will not be called in SSL 2.0
8716 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
8717 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
8718 for applications that need to enforce opaque PRF input.
8719
8720 *Bodo Moeller*
8721
8722 * Update ssl code to support digests other than SHA1+MD5 for handshake
8723 MAC.
8724
8725 *Victor B. Wagner <[email protected]>*
8726
8727 * Add RFC4507 support to OpenSSL. This includes the corrections in
8728 RFC4507bis. The encrypted ticket format is an encrypted encoded
8729 SSL_SESSION structure, that way new session features are automatically
8730 supported.
8731
8732 If a client application caches session in an SSL_SESSION structure
8733 support is transparent because tickets are now stored in the encoded
8734 SSL_SESSION.
8735
8736 The SSL_CTX structure automatically generates keys for ticket
8737 protection in servers so again support should be possible
8738 with no application modification.
8739
8740 If a client or server wishes to disable RFC4507 support then the option
8741 SSL_OP_NO_TICKET can be set.
8742
8743 Add a TLS extension debugging callback to allow the contents of any client
8744 or server extensions to be examined.
8745
8746 This work was sponsored by Google.
8747
8748 *Steve Henson*
8749
8750 * Final changes to avoid use of pointer pointer casts in OpenSSL.
8751 OpenSSL should now compile cleanly on gcc 4.2
8752
8753 *Peter Hartley <[email protected]>, Steve Henson*
8754
8755 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
8756 support including streaming MAC support: this is required for GOST
8757 ciphersuite support.
8758
8759 *Victor B. Wagner <[email protected]>, Steve Henson*
8760
8761 * Add option -stream to use PKCS#7 streaming in smime utility. New
8762 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
8763 to output in BER and PEM format.
8764
8765 *Steve Henson*
8766
8767 * Experimental support for use of HMAC via EVP_PKEY interface. This
8768 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The
8769 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
8770 ENGINE support for HMAC keys which are unextractable. New -mac and
8771 -macopt options to dgst utility.
8772
8773 *Steve Henson*
8774
8775 * New option -sigopt to dgst utility. Update dgst to use
8776 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use
8777 alternative signing parameters such as X9.31 or PSS in the dgst
8778 utility.
8779
8780 *Steve Henson*
8781
8782 * Change ssl_cipher_apply_rule(), the internal function that does
8783 the work each time a ciphersuite string requests enabling
8784 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
8785 removing ("!foo+bar") a class of ciphersuites: Now it maintains
8786 the order of disabled ciphersuites such that those ciphersuites
8787 that most recently went from enabled to disabled not only stay
8788 in order with respect to each other, but also have higher priority
8789 than other disabled ciphersuites the next time ciphersuites are
8790 enabled again.
8791
8792 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
8793 the same ciphersuites as with "HIGH" alone, but in a specific
8794 order where the PSK ciphersuites come first (since they are the
8795 most recently disabled ciphersuites when "HIGH" is parsed).
8796
8797 Also, change ssl_create_cipher_list() (using this new
8798 functionality) such that between otherwise identical
8799 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in
8800 the default order.
8801
8802 *Bodo Moeller*
8803
8804 * Change ssl_create_cipher_list() so that it automatically
8805 arranges the ciphersuites in reasonable order before starting
8806 to process the rule string. Thus, the definition for "DEFAULT"
8807 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
8808 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`.
8809 This makes it much easier to arrive at a reasonable default order
8810 in applications for which anonymous ciphers are OK (meaning
8811 that you can't actually use DEFAULT).
8812
8813 *Bodo Moeller; suggested by Victor Duchovni*
8814
8815 * Split the SSL/TLS algorithm mask (as used for ciphersuite string
8816 processing) into multiple integers instead of setting
8817 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
8818 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
8819 (These masks as well as the individual bit definitions are hidden
8820 away into the non-exported interface ssl/ssl_locl.h, so this
8821 change to the definition of the SSL_CIPHER structure shouldn't
8822 affect applications.) This give us more bits for each of these
8823 categories, so there is no longer a need to coagulate AES128 and
8824 AES256 into a single algorithm bit, and to coagulate Camellia128
8825 and Camellia256 into a single algorithm bit, which has led to all
8826 kinds of kludges.
8827
8828 Thus, among other things, the kludge introduced in 0.9.7m and
8829 0.9.8e for masking out AES256 independently of AES128 or masking
8830 out Camellia256 independently of AES256 is not needed here in 0.9.9.
8831
8832 With the change, we also introduce new ciphersuite aliases that
8833 so far were missing: "AES128", "AES256", "CAMELLIA128", and
8834 "CAMELLIA256".
8835
8836 *Bodo Moeller*
8837
8838 * Add support for dsa-with-SHA224 and dsa-with-SHA256.
8839 Use the leftmost N bytes of the signature input if the input is
8840 larger than the prime q (with N being the size in bytes of q).
8841
8842 *Nils Larsch*
8843
8844 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
8845 it yet and it is largely untested.
8846
8847 *Steve Henson*
8848
8849 * Add support for the ecdsa-with-SHA224/256/384/512 signature types.
8850
8851 *Nils Larsch*
8852
8853 * Initial incomplete changes to avoid need for function casts in OpenSSL
8854 some compilers (gcc 4.2 and later) reject their use. Safestack is
8855 reimplemented. Update ASN1 to avoid use of legacy functions.
8856
8857 *Steve Henson*
8858
8859 * Win32/64 targets are linked with Winsock2.
8860
8861 *Andy Polyakov*
8862
8863 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
8864 to external functions. This can be used to increase CRL handling
8865 efficiency especially when CRLs are very large by (for example) storing
8866 the CRL revoked certificates in a database.
8867
8868 *Steve Henson*
8869
8870 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so
8871 new CRLs added to a directory can be used. New command line option
8872 -verify_return_error to s_client and s_server. This causes real errors
8873 to be returned by the verify callback instead of carrying on no matter
8874 what. This reflects the way a "real world" verify callback would behave.
8875
8876 *Steve Henson*
8877
8878 * GOST engine, supporting several GOST algorithms and public key formats.
8879 Kindly donated by Cryptocom.
8880
8881 *Cryptocom*
8882
8883 * Partial support for Issuing Distribution Point CRL extension. CRLs
8884 partitioned by DP are handled but no indirect CRL or reason partitioning
8885 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
8886 selected via a scoring technique which handles IDP and AKID in CRLs.
8887
8888 *Steve Henson*
8889
8890 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
8891 will ultimately be used for all verify operations: this will remove the
8892 X509_STORE dependency on certificate verification and allow alternative
8893 lookup methods. X509_STORE based implementations of these two callbacks.
8894
8895 *Steve Henson*
8896
8897 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
8898 Modify get_crl() to find a valid (unexpired) CRL if possible.
8899
8900 *Steve Henson*
8901
8902 * New function X509_CRL_match() to check if two CRLs are identical. Normally
8903 this would be called X509_CRL_cmp() but that name is already used by
8904 a function that just compares CRL issuer names. Cache several CRL
8905 extensions in X509_CRL structure and cache CRLDP in X509.
8906
8907 *Steve Henson*
8908
8909 * Store a "canonical" representation of X509_NAME structure (ASN1 Name)
8910 this maps equivalent X509_NAME structures into a consistent structure.
8911 Name comparison can then be performed rapidly using memcmp().
8912
8913 *Steve Henson*
8914
8915 * Non-blocking OCSP request processing. Add -timeout option to ocsp
8916 utility.
8917
8918 *Steve Henson*
8919
8920 * Allow digests to supply their own micalg string for S/MIME type using
8921 the ctrl EVP_MD_CTRL_MICALG.
8922
8923 *Steve Henson*
8924
8925 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the
8926 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
8927 ctrl. It can then customise the structure before and/or after signing
8928 if necessary.
8929
8930 *Steve Henson*
8931
8932 * New function OBJ_add_sigid() to allow application defined signature OIDs
8933 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
8934 to free up any added signature OIDs.
8935
8936 *Steve Henson*
8937
8938 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
8939 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
8940 digest and cipher tables. New options added to openssl utility:
8941 list-message-digest-algorithms and list-cipher-algorithms.
8942
8943 *Steve Henson*
8944
8945 * Change the array representation of binary polynomials: the list
8946 of degrees of non-zero coefficients is now terminated with -1.
8947 Previously it was terminated with 0, which was also part of the
8948 value; thus, the array representation was not applicable to
8949 polynomials where t^0 has coefficient zero. This change makes
8950 the array representation useful in a more general context.
8951
8952 *Douglas Stebila*
8953
8954 * Various modifications and fixes to SSL/TLS cipher string
8955 handling. For ECC, the code now distinguishes between fixed ECDH
8956 with RSA certificates on the one hand and with ECDSA certificates
8957 on the other hand, since these are separate ciphersuites. The
8958 unused code for Fortezza ciphersuites has been removed.
8959
8960 For consistency with EDH, ephemeral ECDH is now called "EECDH"
8961 (not "ECDHE"). For consistency with the code for DH
8962 certificates, use of ECDH certificates is now considered ECDH
8963 authentication, not RSA or ECDSA authentication (the latter is
8964 merely the CA's signing algorithm and not actively used in the
8965 protocol).
8966
8967 The temporary ciphersuite alias "ECCdraft" is no longer
8968 available, and ECC ciphersuites are no longer excluded from "ALL"
8969 and "DEFAULT". The following aliases now exist for RFC 4492
8970 ciphersuites, most of these by analogy with the DH case:
8971
8972 kECDHr - ECDH cert, signed with RSA
8973 kECDHe - ECDH cert, signed with ECDSA
8974 kECDH - ECDH cert (signed with either RSA or ECDSA)
8975 kEECDH - ephemeral ECDH
8976 ECDH - ECDH cert or ephemeral ECDH
8977
8978 aECDH - ECDH cert
8979 aECDSA - ECDSA cert
8980 ECDSA - ECDSA cert
8981
8982 AECDH - anonymous ECDH
8983 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
8984
8985 *Bodo Moeller*
8986
8987 * Add additional S/MIME capabilities for AES and GOST ciphers if supported.
8988 Use correct micalg parameters depending on digest(s) in signed message.
8989
8990 *Steve Henson*
8991
8992 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
8993 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
8994
8995 *Steve Henson*
8996
8997 * Initial engine support for EVP_PKEY_METHOD. New functions to permit
8998 an engine to register a method. Add ENGINE lookups for methods and
8999 functional reference processing.
9000
9001 *Steve Henson*
9002
9003 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of
9004 `EVP_{Sign,Verify}*` which allow an application to customise the signature
9005 process.
9006
9007 *Steve Henson*
9008
9009 * New -resign option to smime utility. This adds one or more signers
9010 to an existing PKCS#7 signedData structure. Also -md option to use an
9011 alternative message digest algorithm for signing.
9012
9013 *Steve Henson*
9014
9015 * Tidy up PKCS#7 routines and add new functions to make it easier to
9016 create PKCS7 structures containing multiple signers. Update smime
9017 application to support multiple signers.
9018
9019 *Steve Henson*
9020
9021 * New -macalg option to pkcs12 utility to allow setting of an alternative
9022 digest MAC.
9023
9024 *Steve Henson*
9025
9026 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
9027 Reorganize PBE internals to lookup from a static table using NIDs,
9028 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
9029 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
9030 PRF which will be automatically used with PBES2.
9031
9032 *Steve Henson*
9033
9034 * Replace the algorithm specific calls to generate keys in "req" with the
9035 new API.
9036
9037 *Steve Henson*
9038
9039 * Update PKCS#7 enveloped data routines to use new API. This is now
9040 supported by any public key method supporting the encrypt operation. A
9041 ctrl is added to allow the public key algorithm to examine or modify
9042 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
9043 a no op.
9044
9045 *Steve Henson*
9046
9047 * Add a ctrl to asn1 method to allow a public key algorithm to express
9048 a default digest type to use. In most cases this will be SHA1 but some
9049 algorithms (such as GOST) need to specify an alternative digest. The
9050 return value indicates how strong the preference is 1 means optional and
9051 2 is mandatory (that is it is the only supported type). Modify
9052 ASN1_item_sign() to accept a NULL digest argument to indicate it should
9053 use the default md. Update openssl utilities to use the default digest
9054 type for signing if it is not explicitly indicated.
9055
9056 *Steve Henson*
9057
9058 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
9059 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
9060 signing method from the key type. This effectively removes the link
9061 between digests and public key types.
9062
9063 *Steve Henson*
9064
9065 * Add an OID cross reference table and utility functions. Its purpose is to
9066 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
9067 rsaEncryption. This will allow some of the algorithm specific hackery
9068 needed to use the correct OID to be removed.
9069
9070 *Steve Henson*
9071
9072 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
9073 structures for PKCS7_sign(). They are now set up by the relevant public
9074 key ASN1 method.
9075
9076 *Steve Henson*
9077
9078 * Add provisional EC pkey method with support for ECDSA and ECDH.
9079
9080 *Steve Henson*
9081
9082 * Add support for key derivation (agreement) in the API, DH method and
9083 pkeyutl.
9084
9085 *Steve Henson*
9086
9087 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
9088 public and private key formats. As a side effect these add additional
9089 command line functionality not previously available: DSA signatures can be
9090 generated and verified using pkeyutl and DH key support and generation in
9091 pkey, genpkey.
9092
9093 *Steve Henson*
9094
9095 * BeOS support.
9096
9097 *Oliver Tappe <[email protected]>*
9098
9099 * New make target "install_html_docs" installs HTML renditions of the
9100 manual pages.
9101
9102 *Oliver Tappe <[email protected]>*
9103
9104 * New utility "genpkey" this is analogous to "genrsa" etc except it can
9105 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
9106 support key and parameter generation and add initial key generation
9107 functionality for RSA.
9108
9109 *Steve Henson*
9110
9111 * Add functions for main EVP_PKEY_method operations. The undocumented
9112 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to
9113 `EVP_PKEY_{encrypt,decrypt}_old`.
9114
9115 *Steve Henson*
9116
9117 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public
9118 key API, doesn't do much yet.
9119
9120 *Steve Henson*
9121
9122 * New function EVP_PKEY_asn1_get0_info() to retrieve information about
9123 public key algorithms. New option to openssl utility:
9124 "list-public-key-algorithms" to print out info.
9125
9126 *Steve Henson*
9127
9128 * Implement the Supported Elliptic Curves Extension for
9129 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
9130
9131 *Douglas Stebila*
9132
9133 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
9134 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
9135
9136 *Steve Henson*
9137
9138 * New utilities pkey and pkeyparam. These are similar to algorithm specific
9139 utilities such as rsa, dsa, dsaparam etc except they process any key
9140 type.
9141
9142 *Steve Henson*
9143
9144 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
9145 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
9146 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
9147 structure.
9148
9149 *Steve Henson*
9150
9151 * Initial support for pluggable public key ASN1.
9152 De-spaghettify the public key ASN1 handling. Move public and private
9153 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
9154 algorithm specific handling to a single module within the relevant
9155 algorithm directory. Add functions to allow (near) opaque processing
9156 of public and private key structures.
9157
9158 *Steve Henson*
9159
9160 * Implement the Supported Point Formats Extension for
9161 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
9162
9163 *Douglas Stebila*
9164
9165 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
9166 for the psk identity [hint] and the psk callback functions to the
9167 SSL_SESSION, SSL and SSL_CTX structure.
9168
9169 New ciphersuites:
9170 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
9171 PSK-AES256-CBC-SHA
9172
9173 New functions:
9174 SSL_CTX_use_psk_identity_hint
9175 SSL_get_psk_identity_hint
9176 SSL_get_psk_identity
9177 SSL_use_psk_identity_hint
9178
9179 *Mika Kousa and Pasi Eronen of Nokia Corporation*
9180
9181 * Add RFC 3161 compliant time stamp request creation, response generation
9182 and response verification functionality.
9183
9184 *Zoltán Glózik <[email protected]>, The OpenTSA Project*
9185
9186 * Add initial support for TLS extensions, specifically for the server_name
9187 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
9188 have new members for a host name. The SSL data structure has an
9189 additional member `SSL_CTX *initial_ctx` so that new sessions can be
9190 stored in that context to allow for session resumption, even after the
9191 SSL has been switched to a new SSL_CTX in reaction to a client's
9192 server_name extension.
9193
9194 New functions (subject to change):
9195
9196 SSL_get_servername()
9197 SSL_get_servername_type()
9198 SSL_set_SSL_CTX()
9199
9200 New CTRL codes and macros (subject to change):
9201
9202 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
9203 - SSL_CTX_set_tlsext_servername_callback()
9204 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
9205 - SSL_CTX_set_tlsext_servername_arg()
9206 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
9207
9208 openssl s_client has a new '-servername ...' option.
9209
9210 openssl s_server has new options '-servername_host ...', '-cert2 ...',
9211 '-key2 ...', '-servername_fatal' (subject to change). This allows
9212 testing the HostName extension for a specific single host name ('-cert'
9213 and '-key' remain fallbacks for handshakes without HostName
9214 negotiation). If the unrecognized_name alert has to be sent, this by
9215 default is a warning; it becomes fatal with the '-servername_fatal'
9216 option.
9217
9218 *Peter Sylvester, Remy Allais, Christophe Renou*
9219
9220 * Whirlpool hash implementation is added.
9221
9222 *Andy Polyakov*
9223
9224 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
9225 bn(64,32). Because of instruction set limitations it doesn't have
9226 any negative impact on performance. This was done mostly in order
9227 to make it possible to share assembler modules, such as bn_mul_mont
9228 implementations, between 32- and 64-bit builds without hassle.
9229
9230 *Andy Polyakov*
9231
9232 * Move code previously exiled into file crypto/ec/ec2_smpt.c
9233 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
9234 macro.
9235
9236 *Bodo Moeller*
9237
9238 * New candidate for BIGNUM assembler implementation, bn_mul_mont,
9239 dedicated Montgomery multiplication procedure, is introduced.
9240 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
9241 "64-bit" performance on certain 32-bit targets.
9242
9243 *Andy Polyakov*
9244
9245 * New option SSL_OP_NO_COMP to disable use of compression selectively
9246 in SSL structures. New SSL ctrl to set maximum send fragment size.
9247 Save memory by setting the I/O buffer sizes dynamically instead of
9248 using the maximum available value.
9249
9250 *Steve Henson*
9251
9252 * New option -V for 'openssl ciphers'. This prints the ciphersuite code
9253 in addition to the text details.
9254
9255 *Bodo Moeller*
9256
9257 * Very, very preliminary EXPERIMENTAL support for printing of general
9258 ASN1 structures. This currently produces rather ugly output and doesn't
9259 handle several customised structures at all.
9260
9261 *Steve Henson*
9262
9263 * Integrated support for PVK file format and some related formats such
9264 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
9265 these in the 'rsa' and 'dsa' utilities.
9266
9267 *Steve Henson*
9268
9269 * Support for PKCS#1 RSAPublicKey format on rsa utility command line.
9270
9271 *Steve Henson*
9272
9273 * Remove the ancient ASN1_METHOD code. This was only ever used in one
9274 place for the (very old) "NETSCAPE" format certificates which are now
9275 handled using new ASN1 code equivalents.
9276
9277 *Steve Henson*
9278
9279 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
9280 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
9281 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
9282
9283 *Nils Larsch*
9284
9285 * Modify CRL distribution points extension code to print out previously
9286 unsupported fields. Enhance extension setting code to allow setting of
9287 all fields.
9288
9289 *Steve Henson*
9290
9291 * Add print and set support for Issuing Distribution Point CRL extension.
9292
9293 *Steve Henson*
9294
9295 * Change 'Configure' script to enable Camellia by default.
9296
9297 *NTT*
9298
9299OpenSSL 0.9.x
9300-------------
9301
9302### Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
9303
9304 * When rejecting SSL/TLS records due to an incorrect version number, never
9305 update s->server with a new major version number. As of
9306 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
9307 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
9308 the previous behavior could result in a read attempt at NULL when
9309 receiving specific incorrect SSL/TLS records once record payload
9310 protection is active. ([CVE-2010-0740])
9311
9312 *Bodo Moeller, Adam Langley <[email protected]>*
9313
9314 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
9315 could be crashed if the relevant tables were not present (e.g. chrooted).
9316
9317 *Tomas Hoger <[email protected]>*
9318
9319### Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
9320
9321 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245])
9322
9323 *Martin Olsson, Neel Mehta*
9324
9325 * Fix X509_STORE locking: Every 'objs' access requires a lock (to
9326 accommodate for stack sorting, always a write lock!).
9327
9328 *Bodo Moeller*
9329
9330 * On some versions of WIN32 Heap32Next is very slow. This can cause
9331 excessive delays in the RAND_poll(): over a minute. As a workaround
9332 include a time check in the inner Heap32Next loop too.
9333
9334 *Steve Henson*
9335
9336 * The code that handled flushing of data in SSL/TLS originally used the
9337 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
9338 the problem outlined in PR#1949. The fix suggested there however can
9339 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
9340 of Apache). So instead simplify the code to flush unconditionally.
9341 This should be fine since flushing with no data to flush is a no op.
9342
9343 *Steve Henson*
9344
9345 * Handle TLS versions 2.0 and later properly and correctly use the
9346 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
9347 off ancient servers have a habit of sticking around for a while...
9348
9349 *Steve Henson*
9350
9351 * Modify compression code so it frees up structures without using the
9352 ex_data callbacks. This works around a problem where some applications
9353 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
9354 restarting) then use compression (e.g. SSL with compression) later.
9355 This results in significant per-connection memory leaks and
9356 has caused some security issues including CVE-2008-1678 and
9357 CVE-2009-4355.
9358
9359 *Steve Henson*
9360
9361 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
9362 change when encrypting or decrypting.
9363
9364 *Bodo Moeller*
9365
9366 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
9367 connect and renegotiate with servers which do not support RI.
9368 Until RI is more widely deployed this option is enabled by default.
9369
9370 *Steve Henson*
9371
9372 * Add "missing" ssl ctrls to clear options and mode.
9373
9374 *Steve Henson*
9375
9376 * If client attempts to renegotiate and doesn't support RI respond with
9377 a no_renegotiation alert as required by RFC5746. Some renegotiating
9378 TLS clients will continue a connection gracefully when they receive
9379 the alert. Unfortunately OpenSSL mishandled this alert and would hang
9380 waiting for a server hello which it will never receive. Now we treat a
9381 received no_renegotiation alert as a fatal error. This is because
9382 applications requesting a renegotiation might well expect it to succeed
9383 and would have no code in place to handle the server denying it so the
9384 only safe thing to do is to terminate the connection.
9385
9386 *Steve Henson*
9387
9388 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
9389 peer supports secure renegotiation and 0 otherwise. Print out peer
9390 renegotiation support in s_client/s_server.
9391
9392 *Steve Henson*
9393
9394 * Replace the highly broken and deprecated SPKAC certification method with
9395 the updated NID creation version. This should correctly handle UTF8.
9396
9397 *Steve Henson*
9398
9399 * Implement RFC5746. Re-enable renegotiation but require the extension
9400 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
9401 turns out to be a bad idea. It has been replaced by
9402 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
9403 SSL_CTX_set_options(). This is really not recommended unless you
9404 know what you are doing.
9405
9406 *Eric Rescorla <[email protected]>, Ben Laurie, Steve Henson*
9407
9408 * Fixes to stateless session resumption handling. Use initial_ctx when
9409 issuing and attempting to decrypt tickets in case it has changed during
9410 servername handling. Use a non-zero length session ID when attempting
9411 stateless session resumption: this makes it possible to determine if
9412 a resumption has occurred immediately after receiving server hello
9413 (several places in OpenSSL subtly assume this) instead of later in
9414 the handshake.
9415
9416 *Steve Henson*
9417
9418 * The functions ENGINE_ctrl(), OPENSSL_isservice(),
9419 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
9420 fixes for a few places where the return code is not checked
9421 correctly.
9422
9423 *Julia Lawall <[email protected]>*
9424
9425 * Add --strict-warnings option to Configure script to include devteam
9426 warnings in other configurations.
9427
9428 *Steve Henson*
9429
9430 * Add support for --libdir option and LIBDIR variable in makefiles. This
9431 makes it possible to install openssl libraries in locations which
9432 have names other than "lib", for example "/usr/lib64" which some
9433 systems need.
9434
9435 *Steve Henson, based on patch from Jeremy Utley*
9436
9437 * Don't allow the use of leading 0x80 in OIDs. This is a violation of
9438 X690 8.9.12 and can produce some misleading textual output of OIDs.
9439
9440 *Steve Henson, reported by Dan Kaminsky*
9441
9442 * Delete MD2 from algorithm tables. This follows the recommendation in
9443 several standards that it is not used in new applications due to
9444 several cryptographic weaknesses. For binary compatibility reasons
9445 the MD2 API is still compiled in by default.
9446
9447 *Steve Henson*
9448
9449 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
9450 and restored.
9451
9452 *Steve Henson*
9453
9454 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
9455 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
9456 clash.
9457
9458 *Guenter <[email protected]>*
9459
9460 * Fix the server certificate chain building code to use X509_verify_cert(),
9461 it used to have an ad-hoc builder which was unable to cope with anything
9462 other than a simple chain.
9463
9464 *David Woodhouse <[email protected]>, Steve Henson*
9465
9466 * Don't check self signed certificate signatures in X509_verify_cert()
9467 by default (a flag can override this): it just wastes time without
9468 adding any security. As a useful side effect self signed root CAs
9469 with non-FIPS digests are now usable in FIPS mode.
9470
9471 *Steve Henson*
9472
9473 * In dtls1_process_out_of_seq_message() the check if the current message
9474 is already buffered was missing. For every new message was memory
9475 allocated, allowing an attacker to perform an denial of service attack
9476 with sending out of seq handshake messages until there is no memory
9477 left. Additionally every future message was buffered, even if the
9478 sequence number made no sense and would be part of another handshake.
9479 So only messages with sequence numbers less than 10 in advance will be
9480 buffered. ([CVE-2009-1378])
9481
9482 *Robin Seggelmann, discovered by Daniel Mentz*
9483
9484 * Records are buffered if they arrive with a future epoch to be
9485 processed after finishing the corresponding handshake. There is
9486 currently no limitation to this buffer allowing an attacker to perform
9487 a DOS attack with sending records with future epochs until there is no
9488 memory left. This patch adds the pqueue_size() function to determine
9489 the size of a buffer and limits the record buffer to 100 entries.
9490 ([CVE-2009-1377])
9491
9492 *Robin Seggelmann, discovered by Daniel Mentz*
9493
9494 * Keep a copy of frag->msg_header.frag_len so it can be used after the
9495 parent structure is freed. ([CVE-2009-1379])
9496
9497 *Daniel Mentz*
9498
9499 * Handle non-blocking I/O properly in SSL_shutdown() call.
9500
9501 *Darryl Miles <[email protected]>*
9502
9503 * Add `2.5.4.*` OIDs
9504
9505 *Ilya O. <[email protected]>*
9506
9507### Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
9508
9509 * Disable renegotiation completely - this fixes a severe security
9510 problem ([CVE-2009-3555]) at the cost of breaking all
9511 renegotiation. Renegotiation can be re-enabled by setting
9512 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
9513 run-time. This is really not recommended unless you know what
9514 you're doing.
9515
9516 *Ben Laurie*
9517
9518### Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
9519
9520 * Don't set val to NULL when freeing up structures, it is freed up by
9521 underlying code. If `sizeof(void *) > sizeof(long)` this can result in
9522 zeroing past the valid field. ([CVE-2009-0789])
9523
9524 *Paolo Ganci <[email protected]>*
9525
9526 * Fix bug where return value of CMS_SignerInfo_verify_content() was not
9527 checked correctly. This would allow some invalid signed attributes to
9528 appear to verify correctly. ([CVE-2009-0591])
9529
9530 *Ivan Nestlerode <[email protected]>*
9531
9532 * Reject UniversalString and BMPString types with invalid lengths. This
9533 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
9534 a legal length. ([CVE-2009-0590])
9535
9536 *Steve Henson*
9537
9538 * Set S/MIME signing as the default purpose rather than setting it
9539 unconditionally. This allows applications to override it at the store
9540 level.
9541
9542 *Steve Henson*
9543
9544 * Permit restricted recursion of ASN1 strings. This is needed in practice
9545 to handle some structures.
9546
9547 *Steve Henson*
9548
9549 * Improve efficiency of mem_gets: don't search whole buffer each time
9550 for a '\n'
9551
9552 *Jeremy Shapiro <[email protected]>*
9553
9554 * New -hex option for openssl rand.
9555
9556 *Matthieu Herrb*
9557
9558 * Print out UTF8String and NumericString when parsing ASN1.
9559
9560 *Steve Henson*
9561
9562 * Support NumericString type for name components.
9563
9564 *Steve Henson*
9565
9566 * Allow CC in the environment to override the automatically chosen
9567 compiler. Note that nothing is done to ensure flags work with the
9568 chosen compiler.
9569
9570 *Ben Laurie*
9571
9572### Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
9573
9574 * Properly check EVP_VerifyFinal() and similar return values
9575 ([CVE-2008-5077]).
9576
9577 *Ben Laurie, Bodo Moeller, Google Security Team*
9578
9579 * Enable TLS extensions by default.
9580
9581 *Ben Laurie*
9582
9583 * Allow the CHIL engine to be loaded, whether the application is
9584 multithreaded or not. (This does not release the developer from the
9585 obligation to set up the dynamic locking callbacks.)
9586
9587 *Sander Temme <[email protected]>*
9588
9589 * Use correct exit code if there is an error in dgst command.
9590
9591 *Steve Henson; problem pointed out by Roland Dirlewanger*
9592
9593 * Tweak Configure so that you need to say "experimental-jpake" to enable
9594 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
9595
9596 *Bodo Moeller*
9597
9598 * Add experimental JPAKE support, including demo authentication in
9599 s_client and s_server.
9600
9601 *Ben Laurie*
9602
9603 * Set the comparison function in v3_addr_canonize().
9604
9605 *Rob Austein <[email protected]>*
9606
9607 * Add support for XMPP STARTTLS in s_client.
9608
9609 *Philip Paeps <[email protected]>*
9610
9611 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
9612 to ensure that even with this option, only ciphersuites in the
9613 server's preference list will be accepted. (Note that the option
9614 applies only when resuming a session, so the earlier behavior was
9615 just about the algorithm choice for symmetric cryptography.)
9616
9617 *Bodo Moeller*
9618
9619### Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
9620
9621 * Fix NULL pointer dereference if a DTLS server received
9622 ChangeCipherSpec as first record ([CVE-2009-1386]).
9623
9624 *PR #1679*
9625
9626 * Fix a state transition in s3_srvr.c and d1_srvr.c
9627 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`).
9628
9629 *Nagendra Modadugu*
9630
9631 * The fix in 0.9.8c that supposedly got rid of unsafe
9632 double-checked locking was incomplete for RSA blinding,
9633 addressing just one layer of what turns out to have been
9634 doubly unsafe triple-checked locking.
9635
9636 So now fix this for real by retiring the MONT_HELPER macro
9637 in crypto/rsa/rsa_eay.c.
9638
9639 *Bodo Moeller; problem pointed out by Marius Schilder*
9640
9641 * Various precautionary measures:
9642
9643 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
9644
9645 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
9646 (NB: This would require knowledge of the secret session ticket key
9647 to exploit, in which case you'd be SOL either way.)
9648
9649 - Change bn_nist.c so that it will properly handle input BIGNUMs
9650 outside the expected range.
9651
9652 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
9653 builds.
9654
9655 *Neel Mehta, Bodo Moeller*
9656
9657 * Allow engines to be "soft loaded" - i.e. optionally don't die if
9658 the load fails. Useful for distros.
9659
9660 *Ben Laurie and the FreeBSD team*
9661
9662 * Add support for Local Machine Keyset attribute in PKCS#12 files.
9663
9664 *Steve Henson*
9665
9666 * Fix BN_GF2m_mod_arr() top-bit cleanup code.
9667
9668 *Huang Ying*
9669
9670 * Expand ENGINE to support engine supplied SSL client certificate functions.
9671
9672 This work was sponsored by Logica.
9673
9674 *Steve Henson*
9675
9676 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
9677 keystores. Support for SSL/TLS client authentication too.
9678 Not compiled unless enable-capieng specified to Configure.
9679
9680 This work was sponsored by Logica.
9681
9682 *Steve Henson*
9683
9684 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using
9685 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
9686 attribute creation routines such as certificate requests and PKCS#12
9687 files.
9688
9689 *Steve Henson*
9690
9691### Changes between 0.9.8g and 0.9.8h [28 May 2008]
9692
9693 * Fix flaw if 'Server Key exchange message' is omitted from a TLS
9694 handshake which could lead to a client crash as found using the
9695 Codenomicon TLS test suite ([CVE-2008-1672])
9696
9697 *Steve Henson, Mark Cox*
9698
9699 * Fix double free in TLS server name extensions which could lead to
9700 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891])
9701
9702 *Joe Orton*
9703
9704 * Clear error queue in SSL_CTX_use_certificate_chain_file()
9705
9706 Clear the error queue to ensure that error entries left from
9707 older function calls do not interfere with the correct operation.
9708
9709 *Lutz Jaenicke, Erik de Castro Lopo*
9710
9711 * Remove root CA certificates of commercial CAs:
9712
9713 The OpenSSL project does not recommend any specific CA and does not
9714 have any policy with respect to including or excluding any CA.
9715 Therefore it does not make any sense to ship an arbitrary selection
9716 of root CA certificates with the OpenSSL software.
9717
9718 *Lutz Jaenicke*
9719
9720 * RSA OAEP patches to fix two separate invalid memory reads.
9721 The first one involves inputs when 'lzero' is greater than
9722 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
9723 before the beginning of from). The second one involves inputs where
9724 the 'db' section contains nothing but zeroes (there is a one-byte
9725 invalid read after the end of 'db').
9726
9727 *Ivan Nestlerode <[email protected]>*
9728
9729 * Partial backport from 0.9.9-dev:
9730
9731 Introduce bn_mul_mont (dedicated Montgomery multiplication
9732 procedure) as a candidate for BIGNUM assembler implementation.
9733 While 0.9.9-dev uses assembler for various architectures, only
9734 x86_64 is available by default here in the 0.9.8 branch, and
9735 32-bit x86 is available through a compile-time setting.
9736
9737 To try the 32-bit x86 assembler implementation, use Configure
9738 option "enable-montasm" (which exists only for this backport).
9739
9740 As "enable-montasm" for 32-bit x86 disclaims code stability
9741 anyway, in this constellation we activate additional code
9742 backported from 0.9.9-dev for further performance improvements,
9743 namely BN_from_montgomery_word. (To enable this otherwise,
9744 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.)
9745
9746 *Andy Polyakov (backport partially by Bodo Moeller)*
9747
9748 * Add TLS session ticket callback. This allows an application to set
9749 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
9750 values. This is useful for key rollover for example where several key
9751 sets may exist with different names.
9752
9753 *Steve Henson*
9754
9755 * Reverse ENGINE-internal logic for caching default ENGINE handles.
9756 This was broken until now in 0.9.8 releases, such that the only way
9757 a registered ENGINE could be used (assuming it initialises
9758 successfully on the host) was to explicitly set it as the default
9759 for the relevant algorithms. This is in contradiction with 0.9.7
9760 behaviour and the documentation. With this fix, when an ENGINE is
9761 registered into a given algorithm's table of implementations, the
9762 'uptodate' flag is reset so that auto-discovery will be used next
9763 time a new context for that algorithm attempts to select an
9764 implementation.
9765
9766 *Ian Lister (tweaked by Geoff Thorpe)*
9767
9768 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
9769 implementation in the following ways:
9770
9771 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
9772 hard coded.
9773
9774 Lack of BER streaming support means one pass streaming processing is
9775 only supported if data is detached: setting the streaming flag is
9776 ignored for embedded content.
9777
9778 CMS support is disabled by default and must be explicitly enabled
9779 with the enable-cms configuration option.
9780
9781 *Steve Henson*
9782
9783 * Update the GMP engine glue to do direct copies between BIGNUM and
9784 mpz_t when openssl and GMP use the same limb size. Otherwise the
9785 existing "conversion via a text string export" trick is still used.
9786
9787 *Paul Sheer <[email protected]>*
9788
9789 * Zlib compression BIO. This is a filter BIO which compressed and
9790 uncompresses any data passed through it.
9791
9792 *Steve Henson*
9793
9794 * Add AES_wrap_key() and AES_unwrap_key() functions to implement
9795 RFC3394 compatible AES key wrapping.
9796
9797 *Steve Henson*
9798
9799 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
9800 sets string data without copying. X509_ALGOR_set0() and
9801 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
9802 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
9803 from an X509_ATTRIBUTE structure optionally checking it occurs only
9804 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
9805 data.
9806
9807 *Steve Henson*
9808
9809 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
9810 to get the expected BN_FLG_CONSTTIME behavior.
9811
9812 *Bodo Moeller (Google)*
9813
9814 * Netware support:
9815
9816 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
9817 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
9818 - added some more tests to do_tests.pl
9819 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
9820 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
9821 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
9822 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
9823 - various changes to netware.pl to enable gcc-cross builds on Win32
9824 platform
9825 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
9826 - various changes to fix missing prototype warnings
9827 - fixed x86nasm.pl to create correct asm files for NASM COFF output
9828 - added AES, WHIRLPOOL and CPUID assembler code to build files
9829 - added missing AES assembler make rules to mk1mf.pl
9830 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply
9831
9832 *Guenter Knauf <[email protected]>*
9833
9834 * Implement certificate status request TLS extension defined in RFC3546.
9835 A client can set the appropriate parameters and receive the encoded
9836 OCSP response via a callback. A server can query the supplied parameters
9837 and set the encoded OCSP response in the callback. Add simplified examples
9838 to s_client and s_server.
9839
9840 *Steve Henson*
9841
9842### Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
9843
9844 * Fix various bugs:
9845 + Binary incompatibility of ssl_ctx_st structure
9846 + DTLS interoperation with non-compliant servers
9847 + Don't call get_session_cb() without proposed session
9848 + Fix ia64 assembler code
9849
9850 *Andy Polyakov, Steve Henson*
9851
9852### Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
9853
9854 * DTLS Handshake overhaul. There were longstanding issues with
9855 OpenSSL DTLS implementation, which were making it impossible for
9856 RFC 4347 compliant client to communicate with OpenSSL server.
9857 Unfortunately just fixing these incompatibilities would "cut off"
9858 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
9859 server keeps tolerating non RFC compliant syntax. The opposite is
9860 not true, 0.9.8f client can not communicate with earlier server.
9861 This update even addresses CVE-2007-4995.
9862
9863 *Andy Polyakov*
9864
9865 * Changes to avoid need for function casts in OpenSSL: some compilers
9866 (gcc 4.2 and later) reject their use.
9867 *Kurt Roeckx <[email protected]>, Peter Hartley <[email protected]>,
9868 Steve Henson*
9869
9870 * Add RFC4507 support to OpenSSL. This includes the corrections in
9871 RFC4507bis. The encrypted ticket format is an encrypted encoded
9872 SSL_SESSION structure, that way new session features are automatically
9873 supported.
9874
9875 If a client application caches session in an SSL_SESSION structure
9876 support is transparent because tickets are now stored in the encoded
9877 SSL_SESSION.
9878
9879 The SSL_CTX structure automatically generates keys for ticket
9880 protection in servers so again support should be possible
9881 with no application modification.
9882
9883 If a client or server wishes to disable RFC4507 support then the option
9884 SSL_OP_NO_TICKET can be set.
9885
9886 Add a TLS extension debugging callback to allow the contents of any client
9887 or server extensions to be examined.
9888
9889 This work was sponsored by Google.
9890
9891 *Steve Henson*
9892
9893 * Add initial support for TLS extensions, specifically for the server_name
9894 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
9895 have new members for a host name. The SSL data structure has an
9896 additional member `SSL_CTX *initial_ctx` so that new sessions can be
9897 stored in that context to allow for session resumption, even after the
9898 SSL has been switched to a new SSL_CTX in reaction to a client's
9899 server_name extension.
9900
9901 New functions (subject to change):
9902
9903 SSL_get_servername()
9904 SSL_get_servername_type()
9905 SSL_set_SSL_CTX()
9906
9907 New CTRL codes and macros (subject to change):
9908
9909 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
9910 - SSL_CTX_set_tlsext_servername_callback()
9911 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
9912 - SSL_CTX_set_tlsext_servername_arg()
9913 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
9914
9915 openssl s_client has a new '-servername ...' option.
9916
9917 openssl s_server has new options '-servername_host ...', '-cert2 ...',
9918 '-key2 ...', '-servername_fatal' (subject to change). This allows
9919 testing the HostName extension for a specific single host name ('-cert'
9920 and '-key' remain fallbacks for handshakes without HostName
9921 negotiation). If the unrecognized_name alert has to be sent, this by
9922 default is a warning; it becomes fatal with the '-servername_fatal'
9923 option.
9924
9925 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson*
9926
9927 * Add AES and SSE2 assembly language support to VC++ build.
9928
9929 *Steve Henson*
9930
9931 * Mitigate attack on final subtraction in Montgomery reduction.
9932
9933 *Andy Polyakov*
9934
9935 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
9936 (which previously caused an internal error).
9937
9938 *Bodo Moeller*
9939
9940 * Squeeze another 10% out of IGE mode when in != out.
9941
9942 *Ben Laurie*
9943
9944 * AES IGE mode speedup.
9945
9946 *Dean Gaudet (Google)*
9947
9948 * Add the Korean symmetric 128-bit cipher SEED (see
9949 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and
9950 add SEED ciphersuites from RFC 4162:
9951
9952 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
9953 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
9954 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
9955 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
9956
9957 To minimize changes between patchlevels in the OpenSSL 0.9.8
9958 series, SEED remains excluded from compilation unless OpenSSL
9959 is configured with 'enable-seed'.
9960
9961 *KISA, Bodo Moeller*
9962
9963 * Mitigate branch prediction attacks, which can be practical if a
9964 single processor is shared, allowing a spy process to extract
9965 information. For detailed background information, see
9966 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron,
9967 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
9968 and Necessary Software Countermeasures"). The core of the change
9969 are new versions BN_div_no_branch() and
9970 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
9971 respectively, which are slower, but avoid the security-relevant
9972 conditional branches. These are automatically called by BN_div()
9973 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
9974 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
9975 remove a conditional branch.
9976
9977 BN_FLG_CONSTTIME is the new name for the previous
9978 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
9979 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
9980 in the exponent causes BN_mod_exp_mont() to use the alternative
9981 implementation in BN_mod_exp_mont_consttime().) The old name
9982 remains as a deprecated alias.
9983
9984 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
9985 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
9986 constant-time implementations for more than just exponentiation.
9987 Here too the old name is kept as a deprecated alias.
9988
9989 BN_BLINDING_new() will now use BN_dup() for the modulus so that
9990 the BN_BLINDING structure gets an independent copy of the
9991 modulus. This means that the previous `BIGNUM *m` argument to
9992 BN_BLINDING_new() and to BN_BLINDING_create_param() now
9993 essentially becomes `const BIGNUM *m`, although we can't actually
9994 change this in the header file before 0.9.9. It allows
9995 RSA_setup_blinding() to use BN_with_flags() on the modulus to
9996 enable BN_FLG_CONSTTIME.
9997
9998 *Matthew D Wood (Intel Corp)*
9999
10000 * In the SSL/TLS server implementation, be strict about session ID
10001 context matching (which matters if an application uses a single
10002 external cache for different purposes). Previously,
10003 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
10004 set. This did ensure strict client verification, but meant that,
10005 with applications using a single external cache for quite
10006 different requirements, clients could circumvent ciphersuite
10007 restrictions for a given session ID context by starting a session
10008 in a different context.
10009
10010 *Bodo Moeller*
10011
10012 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
10013 a ciphersuite string such as "DEFAULT:RSA" cannot enable
10014 authentication-only ciphersuites.
10015
10016 *Bodo Moeller*
10017
10018 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
10019 not complete and could lead to a possible single byte overflow
10020 ([CVE-2007-5135]) [Ben Laurie]
10021
10022### Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
10023
10024 * Since AES128 and AES256 (and similarly Camellia128 and
10025 Camellia256) share a single mask bit in the logic of
10026 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
10027 kludge to work properly if AES128 is available and AES256 isn't
10028 (or if Camellia128 is available and Camellia256 isn't).
10029
10030 *Victor Duchovni*
10031
10032 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
10033 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
10034 When a point or a seed is encoded in a BIT STRING, we need to
10035 prevent the removal of trailing zero bits to get the proper DER
10036 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
10037 of a NamedBitList, for which trailing 0 bits need to be removed.)
10038
10039 *Bodo Moeller*
10040
10041 * Have SSL/TLS server implementation tolerate "mismatched" record
10042 protocol version while receiving ClientHello even if the
10043 ClientHello is fragmented. (The server can't insist on the
10044 particular protocol version it has chosen before the ServerHello
10045 message has informed the client about his choice.)
10046
10047 *Bodo Moeller*
10048
10049 * Add RFC 3779 support.
10050
10051 *Rob Austein for ARIN, Ben Laurie*
10052
10053 * Load error codes if they are not already present instead of using a
10054 static variable. This allows them to be cleanly unloaded and reloaded.
10055 Improve header file function name parsing.
10056
10057 *Steve Henson*
10058
10059 * extend SMTP and IMAP protocol emulation in s_client to use EHLO
10060 or CAPABILITY handshake as required by RFCs.
10061
10062 *Goetz Babin-Ebell*
10063
10064### Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
10065
10066 * Introduce limits to prevent malicious keys being able to
10067 cause a denial of service. ([CVE-2006-2940])
10068
10069 *Steve Henson, Bodo Moeller*
10070
10071 * Fix ASN.1 parsing of certain invalid structures that can result
10072 in a denial of service. ([CVE-2006-2937]) [Steve Henson]
10073
10074 * Fix buffer overflow in SSL_get_shared_ciphers() function.
10075 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team]
10076
10077 * Fix SSL client code which could crash if connecting to a
10078 malicious SSLv2 server. ([CVE-2006-4343])
10079
10080 *Tavis Ormandy and Will Drewry, Google Security Team*
10081
10082 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
10083 match only those. Before that, "AES256-SHA" would be interpreted
10084 as a pattern and match "AES128-SHA" too (since AES128-SHA got
10085 the same strength classification in 0.9.7h) as we currently only
10086 have a single AES bit in the ciphersuite description bitmap.
10087 That change, however, also applied to ciphersuite strings such as
10088 "RC4-MD5" that intentionally matched multiple ciphersuites --
10089 namely, SSL 2.0 ciphersuites in addition to the more common ones
10090 from SSL 3.0/TLS 1.0.
10091
10092 So we change the selection algorithm again: Naming an explicit
10093 ciphersuite selects this one ciphersuite, and any other similar
10094 ciphersuite (same bitmap) from *other* protocol versions.
10095 Thus, "RC4-MD5" again will properly select both the SSL 2.0
10096 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
10097
10098 Since SSL 2.0 does not have any ciphersuites for which the
10099 128/256 bit distinction would be relevant, this works for now.
10100 The proper fix will be to use different bits for AES128 and
10101 AES256, which would have avoided the problems from the beginning;
10102 however, bits are scarce, so we can only do this in a new release
10103 (not just a patchlevel) when we can change the SSL_CIPHER
10104 definition to split the single 'unsigned long mask' bitmap into
10105 multiple values to extend the available space.
10106
10107 *Bodo Moeller*
10108
10109### Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
10110
10111 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
10112 ([CVE-2006-4339]) [Ben Laurie and Google Security Team]
10113
10114 * Add AES IGE and biIGE modes.
10115
10116 *Ben Laurie*
10117
10118 * Change the Unix randomness entropy gathering to use poll() when
10119 possible instead of select(), since the latter has some
10120 undesirable limitations.
10121
10122 *Darryl Miles via Richard Levitte and Bodo Moeller*
10123
10124 * Disable "ECCdraft" ciphersuites more thoroughly. Now special
10125 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
10126 cannot be implicitly activated as part of, e.g., the "AES" alias.
10127 However, please upgrade to OpenSSL 0.9.9[-dev] for
10128 non-experimental use of the ECC ciphersuites to get TLS extension
10129 support, which is required for curve and point format negotiation
10130 to avoid potential handshake problems.
10131
10132 *Bodo Moeller*
10133
10134 * Disable rogue ciphersuites:
10135
10136 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
10137 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
10138 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
10139
10140 The latter two were purportedly from
10141 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
10142 appear there.
10143
10144 Also deactivate the remaining ciphersuites from
10145 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
10146 unofficial, and the ID has long expired.
10147
10148 *Bodo Moeller*
10149
10150 * Fix RSA blinding Heisenbug (problems sometimes occurred on
10151 dual-core machines) and other potential thread-safety issues.
10152
10153 *Bodo Moeller*
10154
10155 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
10156 versions), which is now available for royalty-free use
10157 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>).
10158 Also, add Camellia TLS ciphersuites from RFC 4132.
10159
10160 To minimize changes between patchlevels in the OpenSSL 0.9.8
10161 series, Camellia remains excluded from compilation unless OpenSSL
10162 is configured with 'enable-camellia'.
10163
10164 *NTT*
10165
10166 * Disable the padding bug check when compression is in use. The padding
10167 bug check assumes the first packet is of even length, this is not
10168 necessarily true if compression is enabled and can result in false
10169 positives causing handshake failure. The actual bug test is ancient
10170 code so it is hoped that implementations will either have fixed it by
10171 now or any which still have the bug do not support compression.
10172
10173 *Steve Henson*
10174
10175### Changes between 0.9.8a and 0.9.8b [04 May 2006]
10176
10177 * When applying a cipher rule check to see if string match is an explicit
10178 cipher suite and only match that one cipher suite if it is.
10179
10180 *Steve Henson*
10181
10182 * Link in manifests for VC++ if needed.
10183
10184 *Austin Ziegler <[email protected]>*
10185
10186 * Update support for ECC-based TLS ciphersuites according to
10187 draft-ietf-tls-ecc-12.txt with proposed changes (but without
10188 TLS extensions, which are supported starting with the 0.9.9
10189 branch, not in the OpenSSL 0.9.8 branch).
10190
10191 *Douglas Stebila*
10192
10193 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
10194 opaque EVP_CIPHER_CTX handling.
10195
10196 *Steve Henson*
10197
10198 * Fixes and enhancements to zlib compression code. We now only use
10199 "zlib1.dll" and use the default `__cdecl` calling convention on Win32
10200 to conform with the standards mentioned here:
10201 <http://www.zlib.net/DLL_FAQ.txt>
10202 Static zlib linking now works on Windows and the new --with-zlib-include
10203 --with-zlib-lib options to Configure can be used to supply the location
10204 of the headers and library. Gracefully handle case where zlib library
10205 can't be loaded.
10206
10207 *Steve Henson*
10208
10209 * Several fixes and enhancements to the OID generation code. The old code
10210 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
10211 handle numbers larger than ULONG_MAX, truncated printing and had a
10212 non standard OBJ_obj2txt() behaviour.
10213
10214 *Steve Henson*
10215
10216 * Add support for building of engines under engine/ as shared libraries
10217 under VC++ build system.
10218
10219 *Steve Henson*
10220
10221 * Corrected the numerous bugs in the Win32 path splitter in DSO.
10222 Hopefully, we will not see any false combination of paths any more.
10223
10224 *Richard Levitte*
10225
10226### Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
10227
10228 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
10229 (part of SSL_OP_ALL). This option used to disable the
10230 countermeasure against man-in-the-middle protocol-version
10231 rollback in the SSL 2.0 server implementation, which is a bad
10232 idea. ([CVE-2005-2969])
10233
10234 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
10235 for Information Security, National Institute of Advanced Industrial
10236 Science and Technology [AIST], Japan)*
10237
10238 * Add two function to clear and return the verify parameter flags.
10239
10240 *Steve Henson*
10241
10242 * Keep cipherlists sorted in the source instead of sorting them at
10243 runtime, thus removing the need for a lock.
10244
10245 *Nils Larsch*
10246
10247 * Avoid some small subgroup attacks in Diffie-Hellman.
10248
10249 *Nick Mathewson and Ben Laurie*
10250
10251 * Add functions for well-known primes.
10252
10253 *Nick Mathewson*
10254
10255 * Extended Windows CE support.
10256
10257 *Satoshi Nakamura and Andy Polyakov*
10258
10259 * Initialize SSL_METHOD structures at compile time instead of during
10260 runtime, thus removing the need for a lock.
10261
10262 *Steve Henson*
10263
10264 * Make PKCS7_decrypt() work even if no certificate is supplied by
10265 attempting to decrypt each encrypted key in turn. Add support to
10266 smime utility.
10267
10268 *Steve Henson*
10269
10270### Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
10271
10272[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
10273OpenSSL 0.9.8.]
10274
10275 * Add libcrypto.pc and libssl.pc for those who feel they need them.
10276
10277 *Richard Levitte*
10278
10279 * Change CA.sh and CA.pl so they don't bundle the CSR and the private
10280 key into the same file any more.
10281
10282 *Richard Levitte*
10283
10284 * Add initial support for Win64, both IA64 and AMD64/x64 flavors.
10285
10286 *Andy Polyakov*
10287
10288 * Add -utf8 command line and config file option to 'ca'.
10289
10290 *Stefan <[email protected]*
10291
10292 * Removed the macro des_crypt(), as it seems to conflict with some
10293 libraries. Use DES_crypt().
10294
10295 *Richard Levitte*
10296
10297 * Correct naming of the 'chil' and '4758cca' ENGINEs. This
10298 involves renaming the source and generated shared-libs for
10299 both. The engines will accept the corrected or legacy ids
10300 ('ncipher' and '4758_cca' respectively) when binding. NB,
10301 this only applies when building 'shared'.
10302
10303 *Corinna Vinschen <[email protected]> and Geoff Thorpe*
10304
10305 * Add attribute functions to EVP_PKEY structure. Modify
10306 PKCS12_create() to recognize a CSP name attribute and
10307 use it. Make -CSP option work again in pkcs12 utility.
10308
10309 *Steve Henson*
10310
10311 * Add new functionality to the bn blinding code:
10312 - automatic re-creation of the BN_BLINDING parameters after
10313 a fixed number of uses (currently 32)
10314 - add new function for parameter creation
10315 - introduce flags to control the update behaviour of the
10316 BN_BLINDING parameters
10317 - hide BN_BLINDING structure
10318 Add a second BN_BLINDING slot to the RSA structure to improve
10319 performance when a single RSA object is shared among several
10320 threads.
10321
10322 *Nils Larsch*
10323
10324 * Add support for DTLS.
10325
10326 *Nagendra Modadugu <[email protected]> and Ben Laurie*
10327
10328 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
10329 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
10330
10331 *Walter Goulet*
10332
10333 * Remove buggy and incomplete DH cert support from
10334 ssl/ssl_rsa.c and ssl/s3_both.c
10335
10336 *Nils Larsch*
10337
10338 * Use SHA-1 instead of MD5 as the default digest algorithm for
10339 the `apps/openssl` commands.
10340
10341 *Nils Larsch*
10342
10343 * Compile clean with "-Wall -Wmissing-prototypes
10344 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
10345 DEBUG_SAFESTACK must also be set.
10346
10347 *Ben Laurie*
10348
10349 * Change ./Configure so that certain algorithms can be disabled by default.
10350 The new counterpiece to "no-xxx" is "enable-xxx".
10351
10352 The patented RC5 and MDC2 algorithms will now be disabled unless
10353 "enable-rc5" and "enable-mdc2", respectively, are specified.
10354
10355 (IDEA remains enabled despite being patented. This is because IDEA
10356 is frequently required for interoperability, and there is no license
10357 fee for non-commercial use. As before, "no-idea" can be used to
10358 avoid this algorithm.)
10359
10360 *Bodo Moeller*
10361
10362 * Add processing of proxy certificates (see RFC 3820). This work was
10363 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
10364 EGEE (Enabling Grids for E-science in Europe).
10365
10366 *Richard Levitte*
10367
10368 * RC4 performance overhaul on modern architectures/implementations, such
10369 as Intel P4, IA-64 and AMD64.
10370
10371 *Andy Polyakov*
10372
10373 * New utility extract-section.pl. This can be used specify an alternative
10374 section number in a pod file instead of having to treat each file as
10375 a separate case in Makefile. This can be done by adding two lines to the
10376 pod file:
10377
10378 =for comment openssl_section:XXX
10379
10380 The blank line is mandatory.
10381
10382 *Steve Henson*
10383
10384 * New arguments -certform, -keyform and -pass for s_client and s_server
10385 to allow alternative format key and certificate files and passphrase
10386 sources.
10387
10388 *Steve Henson*
10389
10390 * New structure X509_VERIFY_PARAM which combines current verify parameters,
10391 update associated structures and add various utility functions.
10392
10393 Add new policy related verify parameters, include policy checking in
10394 standard verify code. Enhance 'smime' application with extra parameters
10395 to support policy checking and print out.
10396
10397 *Steve Henson*
10398
10399 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3
10400 Nehemiah processors. These extensions support AES encryption in hardware
10401 as well as RNG (though RNG support is currently disabled).
10402
10403 *Michal Ludvig <[email protected]>, with help from Andy Polyakov*
10404
10405 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally).
10406
10407 *Geoff Thorpe*
10408
10409 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
10410
10411 *Andy Polyakov and a number of other people*
10412
10413 * Improved PowerPC platform support. Most notably BIGNUM assembler
10414 implementation contributed by IBM.
10415
10416 *Suresh Chari, Peter Waltenberg, Andy Polyakov*
10417
10418 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
10419 exponent rather than 'unsigned long'. There is a corresponding change to
10420 the new 'rsa_keygen' element of the RSA_METHOD structure.
10421
10422 *Jelte Jansen, Geoff Thorpe*
10423
10424 * Functionality for creating the initial serial number file is now
10425 moved from CA.pl to the 'ca' utility with a new option -create_serial.
10426
10427 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
10428 number file to 1, which is bound to cause problems. To avoid
10429 the problems while respecting compatibility between different 0.9.7
10430 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
10431 CA.pl for serial number initialization. With the new release 0.9.8,
10432 we can fix the problem directly in the 'ca' utility.)
10433
10434 *Steve Henson*
10435
10436 * Reduced header interdependencies by declaring more opaque objects in
10437 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
10438 give fewer recursive includes, which could break lazy source code - so
10439 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
10440 developers should define this symbol when building and using openssl to
10441 ensure they track the recommended behaviour, interfaces, [etc], but
10442 backwards-compatible behaviour prevails when this isn't defined.
10443
10444 *Geoff Thorpe*
10445
10446 * New function X509_POLICY_NODE_print() which prints out policy nodes.
10447
10448 *Steve Henson*
10449
10450 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
10451 This will generate a random key of the appropriate length based on the
10452 cipher context. The EVP_CIPHER can provide its own random key generation
10453 routine to support keys of a specific form. This is used in the des and
10454 3des routines to generate a key of the correct parity. Update S/MIME
10455 code to use new functions and hence generate correct parity DES keys.
10456 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
10457 valid (weak or incorrect parity).
10458
10459 *Steve Henson*
10460
10461 * Add a local set of CRLs that can be used by X509_verify_cert() as well
10462 as looking them up. This is useful when the verified structure may contain
10463 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
10464 present unless the new PKCS7_NO_CRL flag is asserted.
10465
10466 *Steve Henson*
10467
10468 * Extend ASN1 oid configuration module. It now additionally accepts the
10469 syntax:
10470
10471 shortName = some long name, 1.2.3.4
10472
10473 *Steve Henson*
10474
10475 * Reimplemented the BN_CTX implementation. There is now no more static
10476 limitation on the number of variables it can handle nor the depth of the
10477 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
10478 information can now expand as required, and rather than having a single
10479 static array of bignums, BN_CTX now uses a linked-list of such arrays
10480 allowing it to expand on demand whilst maintaining the usefulness of
10481 BN_CTX's "bundling".
10482
10483 *Geoff Thorpe*
10484
10485 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
10486 to allow all RSA operations to function using a single BN_CTX.
10487
10488 *Geoff Thorpe*
10489
10490 * Preliminary support for certificate policy evaluation and checking. This
10491 is initially intended to pass the tests outlined in "Conformance Testing
10492 of Relying Party Client Certificate Path Processing Logic" v1.07.
10493
10494 *Steve Henson*
10495
10496 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
10497 remained unused and not that useful. A variety of other little bignum
10498 tweaks and fixes have also been made continuing on from the audit (see
10499 below).
10500
10501 *Geoff Thorpe*
10502
10503 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with
10504 associated ASN1, EVP and SSL functions and old ASN1 macros.
10505
10506 *Richard Levitte*
10507
10508 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
10509 and this should never fail. So the return value from the use of
10510 BN_set_word() (which can fail due to needless expansion) is now deprecated;
10511 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
10512
10513 *Geoff Thorpe*
10514
10515 * BN_CTX_get() should return zero-valued bignums, providing the same
10516 initialised value as BN_new().
10517
10518 *Geoff Thorpe, suggested by Ulf Möller*
10519
10520 * Support for inhibitAnyPolicy certificate extension.
10521
10522 *Steve Henson*
10523
10524 * An audit of the BIGNUM code is underway, for which debugging code is
10525 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
10526 is considered valid when processing BIGNUMs, and causes execution to
10527 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
10528 further steps are taken to deliberately pollute unused data in BIGNUM
10529 structures to try and expose faulty code further on. For now, openssl will
10530 (in its default mode of operation) continue to tolerate the inconsistent
10531 forms that it has tolerated in the past, but authors and packagers should
10532 consider trying openssl and their own applications when compiled with
10533 these debugging symbols defined. It will help highlight potential bugs in
10534 their own code, and will improve the test coverage for OpenSSL itself. At
10535 some point, these tighter rules will become openssl's default to improve
10536 maintainability, though the assert()s and other overheads will remain only
10537 in debugging configurations. See bn.h for more details.
10538
10539 *Geoff Thorpe, Nils Larsch, Ulf Möller*
10540
10541 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
10542 that can only be obtained through BN_CTX_new() (which implicitly
10543 initialises it). The presence of this function only made it possible
10544 to overwrite an existing structure (and cause memory leaks).
10545
10546 *Geoff Thorpe*
10547
10548 * Because of the callback-based approach for implementing LHASH as a
10549 template type, lh_insert() adds opaque objects to hash-tables and
10550 lh_doall() or lh_doall_arg() are typically used with a destructor callback
10551 to clean up those corresponding objects before destroying the hash table
10552 (and losing the object pointers). So some over-zealous constifications in
10553 LHASH have been relaxed so that lh_insert() does not take (nor store) the
10554 objects as "const" and the `lh_doall[_arg]` callback wrappers are not
10555 prototyped to have "const" restrictions on the object pointers they are
10556 given (and so aren't required to cast them away any more).
10557
10558 *Geoff Thorpe*
10559
10560 * The tmdiff.h API was so ugly and minimal that our own timing utility
10561 (speed) prefers to use its own implementation. The two implementations
10562 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
10563 its object type properly exposed (MS_TM) instead of casting to/from
10564 `char *`. This may still change yet if someone realises MS_TM and
10565 `ms_time_***`
10566 aren't necessarily the greatest nomenclatures - but this is what was used
10567 internally to the implementation so I've used that for now.
10568
10569 *Geoff Thorpe*
10570
10571 * Ensure that deprecated functions do not get compiled when
10572 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
10573 the self-tests were still using deprecated key-generation functions so
10574 these have been updated also.
10575
10576 *Geoff Thorpe*
10577
10578 * Reorganise PKCS#7 code to separate the digest location functionality
10579 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
10580 New function PKCS7_set_digest() to set the digest type for PKCS#7
10581 digestedData type. Add additional code to correctly generate the
10582 digestedData type and add support for this type in PKCS7 initialization
10583 functions.
10584
10585 *Steve Henson*
10586
10587 * New function PKCS7_set0_type_other() this initializes a PKCS7
10588 structure of type "other".
10589
10590 *Steve Henson*
10591
10592 * Fix prime generation loop in crypto/bn/bn_prime.pl by making
10593 sure the loop does correctly stop and breaking ("division by zero")
10594 modulus operations are not performed. The (pre-generated) prime
10595 table crypto/bn/bn_prime.h was already correct, but it could not be
10596 re-generated on some platforms because of the "division by zero"
10597 situation in the script.
10598
10599 *Ralf S. Engelschall*
10600
10601 * Update support for ECC-based TLS ciphersuites according to
10602 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
10603 SHA-1 now is only used for "small" curves (where the
10604 representation of a field element takes up to 24 bytes); for
10605 larger curves, the field element resulting from ECDH is directly
10606 used as premaster secret.
10607
10608 *Douglas Stebila (Sun Microsystems Laboratories)*
10609
10610 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
10611 curve secp160r1 to the tests.
10612
10613 *Douglas Stebila (Sun Microsystems Laboratories)*
10614
10615 * Add the possibility to load symbols globally with DSO.
10616
10617 *Götz Babin-Ebell <[email protected]> via Richard Levitte*
10618
10619 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
10620 control of the error stack.
10621
10622 *Richard Levitte*
10623
10624 * Add support for STORE in ENGINE.
10625
10626 *Richard Levitte*
10627
10628 * Add the STORE type. The intention is to provide a common interface
10629 to certificate and key stores, be they simple file-based stores, or
10630 HSM-type store, or LDAP stores, or...
10631 NOTE: The code is currently UNTESTED and isn't really used anywhere.
10632
10633 *Richard Levitte*
10634
10635 * Add a generic structure called OPENSSL_ITEM. This can be used to
10636 pass a list of arguments to any function as well as provide a way
10637 for a function to pass data back to the caller.
10638
10639 *Richard Levitte*
10640
10641 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
10642 works like BUF_strdup() but can be used to duplicate a portion of
10643 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
10644 a memory area.
10645
10646 *Richard Levitte*
10647
10648 * Add the function sk_find_ex() which works like sk_find(), but will
10649 return an index to an element even if an exact match couldn't be
10650 found. The index is guaranteed to point at the element where the
10651 searched-for key would be inserted to preserve sorting order.
10652
10653 *Richard Levitte*
10654
10655 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
10656 takes an extra flags argument for optional functionality. Currently,
10657 the following flags are defined:
10658
10659 OBJ_BSEARCH_VALUE_ON_NOMATCH
10660 This one gets OBJ_bsearch_ex() to return a pointer to the first
10661 element where the comparing function returns a negative or zero
10662 number.
10663
10664 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
10665 This one gets OBJ_bsearch_ex() to return a pointer to the first
10666 element where the comparing function returns zero. This is useful
10667 if there are more than one element where the comparing function
10668 returns zero.
10669
10670 *Richard Levitte*
10671
10672 * Make it possible to create self-signed certificates with 'openssl ca'
10673 in such a way that the self-signed certificate becomes part of the
10674 CA database and uses the same mechanisms for serial number generation
10675 as all other certificate signing. The new flag '-selfsign' enables
10676 this functionality. Adapt CA.sh and CA.pl.in.
10677
10678 *Richard Levitte*
10679
10680 * Add functionality to check the public key of a certificate request
10681 against a given private. This is useful to check that a certificate
10682 request can be signed by that key (self-signing).
10683
10684 *Richard Levitte*
10685
10686 * Make it possible to have multiple active certificates with the same
10687 subject in the CA index file. This is done only if the keyword
10688 'unique_subject' is set to 'no' in the main CA section (default
10689 if 'CA_default') of the configuration file. The value is saved
10690 with the database itself in a separate index attribute file,
10691 named like the index file with '.attr' appended to the name.
10692
10693 *Richard Levitte*
10694
10695 * Generate multi-valued AVAs using '+' notation in config files for
10696 req and dirName.
10697
10698 *Steve Henson*
10699
10700 * Support for nameConstraints certificate extension.
10701
10702 *Steve Henson*
10703
10704 * Support for policyConstraints certificate extension.
10705
10706 *Steve Henson*
10707
10708 * Support for policyMappings certificate extension.
10709
10710 *Steve Henson*
10711
10712 * Make sure the default DSA_METHOD implementation only uses its
10713 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
10714 and change its own handlers to be NULL so as to remove unnecessary
10715 indirection. This lets alternative implementations fallback to the
10716 default implementation more easily.
10717
10718 *Geoff Thorpe*
10719
10720 * Support for directoryName in GeneralName related extensions
10721 in config files.
10722
10723 *Steve Henson*
10724
10725 * Make it possible to link applications using Makefile.shared.
10726 Make that possible even when linking against static libraries!
10727
10728 *Richard Levitte*
10729
10730 * Support for single pass processing for S/MIME signing. This now
10731 means that S/MIME signing can be done from a pipe, in addition
10732 cleartext signing (multipart/signed type) is effectively streaming
10733 and the signed data does not need to be all held in memory.
10734
10735 This is done with a new flag PKCS7_STREAM. When this flag is set
10736 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
10737 is done after the data is output (and digests calculated) in
10738 SMIME_write_PKCS7().
10739
10740 *Steve Henson*
10741
10742 * Add full support for -rpath/-R, both in shared libraries and
10743 applications, at least on the platforms where it's known how
10744 to do it.
10745
10746 *Richard Levitte*
10747
10748 * In crypto/ec/ec_mult.c, implement fast point multiplication with
10749 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
10750 will now compute a table of multiples of the generator that
10751 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
10752 faster (notably in the case of a single point multiplication,
10753 scalar * generator).
10754
10755 *Nils Larsch, Bodo Moeller*
10756
10757 * IPv6 support for certificate extensions. The various extensions
10758 which use the IP:a.b.c.d can now take IPv6 addresses using the
10759 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
10760 correctly.
10761
10762 *Steve Henson*
10763
10764 * Added an ENGINE that implements RSA by performing private key
10765 exponentiations with the GMP library. The conversions to and from
10766 GMP's mpz_t format aren't optimised nor are any montgomery forms
10767 cached, and on x86 it appears OpenSSL's own performance has caught up.
10768 However there are likely to be other architectures where GMP could
10769 provide a boost. This ENGINE is not built in by default, but it can be
10770 specified at Configure time and should be accompanied by the necessary
10771 linker additions, eg;
10772 ./config -DOPENSSL_USE_GMP -lgmp
10773
10774 *Geoff Thorpe*
10775
10776 * "openssl engine" will not display ENGINE/DSO load failure errors when
10777 testing availability of engines with "-t" - the old behaviour is
10778 produced by increasing the feature's verbosity with "-tt".
10779
10780 *Geoff Thorpe*
10781
10782 * ECDSA routines: under certain error conditions uninitialized BN objects
10783 could be freed. Solution: make sure initialization is performed early
10784 enough. (Reported and fix supplied by Nils Larsch <[email protected]>
10785 via PR#459)
10786
10787 *Lutz Jaenicke*
10788
10789 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
10790 and DH_METHOD (eg. by ENGINE implementations) to override the normal
10791 software implementations. For DSA and DH, parameter generation can
10792 also be overridden by providing the appropriate method callbacks.
10793
10794 *Geoff Thorpe*
10795
10796 * Change the "progress" mechanism used in key-generation and
10797 primality testing to functions that take a new BN_GENCB pointer in
10798 place of callback/argument pairs. The new API functions have `_ex`
10799 postfixes and the older functions are reimplemented as wrappers for
10800 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
10801 declarations of the old functions to help (graceful) attempts to
10802 migrate to the new functions. Also, the new key-generation API
10803 functions operate on a caller-supplied key-structure and return
10804 success/failure rather than returning a key or NULL - this is to
10805 help make "keygen" another member function of RSA_METHOD etc.
10806
10807 Example for using the new callback interface:
10808
10809 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
10810 void *my_arg = ...;
10811 BN_GENCB my_cb;
10812
10813 BN_GENCB_set(&my_cb, my_callback, my_arg);
10814
10815 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
10816 /* For the meaning of a, b in calls to my_callback(), see the
10817 * documentation of the function that calls the callback.
10818 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
10819 * my_callback should return 1 if it wants BN_is_prime_ex()
10820 * to continue, or 0 to stop.
10821 */
10822
10823 *Geoff Thorpe*
10824
10825 * Change the ZLIB compression method to be stateful, and make it
10826 available to TLS with the number defined in
10827 draft-ietf-tls-compression-04.txt.
10828
10829 *Richard Levitte*
10830
10831 * Add the ASN.1 structures and functions for CertificatePair, which
10832 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
10833
10834 CertificatePair ::= SEQUENCE {
10835 forward [0] Certificate OPTIONAL,
10836 reverse [1] Certificate OPTIONAL,
10837 -- at least one of the pair shall be present -- }
10838
10839 Also implement the PEM functions to read and write certificate
10840 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
10841
10842 This needed to be defined, mostly for the sake of the LDAP
10843 attribute crossCertificatePair, but may prove useful elsewhere as
10844 well.
10845
10846 *Richard Levitte*
10847
10848 * Make it possible to inhibit symlinking of shared libraries in
10849 Makefile.shared, for Cygwin's sake.
10850
10851 *Richard Levitte*
10852
10853 * Extend the BIGNUM API by creating a function
10854 void BN_set_negative(BIGNUM *a, int neg);
10855 and a macro that behave like
10856 int BN_is_negative(const BIGNUM *a);
10857
10858 to avoid the need to access 'a->neg' directly in applications.
10859
10860 *Nils Larsch*
10861
10862 * Implement fast modular reduction for pseudo-Mersenne primes
10863 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
10864 EC_GROUP_new_curve_GFp() will now automatically use this
10865 if applicable.
10866
10867 *Nils Larsch <[email protected]>*
10868
10869 * Add new lock type (CRYPTO_LOCK_BN).
10870
10871 *Bodo Moeller*
10872
10873 * Change the ENGINE framework to automatically load engines
10874 dynamically from specific directories unless they could be
10875 found to already be built in or loaded. Move all the
10876 current engines except for the cryptodev one to a new
10877 directory engines/.
10878 The engines in engines/ are built as shared libraries if
10879 the "shared" options was given to ./Configure or ./config.
10880 Otherwise, they are inserted in libcrypto.a.
10881 /usr/local/ssl/engines is the default directory for dynamic
10882 engines, but that can be overridden at configure time through
10883 the usual use of --prefix and/or --openssldir, and at run
10884 time with the environment variable OPENSSL_ENGINES.
10885
10886 *Geoff Thorpe and Richard Levitte*
10887
10888 * Add Makefile.shared, a helper makefile to build shared
10889 libraries. Adapt Makefile.org.
10890
10891 *Richard Levitte*
10892
10893 * Add version info to Win32 DLLs.
10894
10895 *Peter 'Luna' Runestig" <[email protected]>*
10896
10897 * Add new 'medium level' PKCS#12 API. Certificates and keys
10898 can be added using this API to created arbitrary PKCS#12
10899 files while avoiding the low-level API.
10900
10901 New options to PKCS12_create(), key or cert can be NULL and
10902 will then be omitted from the output file. The encryption
10903 algorithm NIDs can be set to -1 for no encryption, the mac
10904 iteration count can be set to 0 to omit the mac.
10905
10906 Enhance pkcs12 utility by making the -nokeys and -nocerts
10907 options work when creating a PKCS#12 file. New option -nomac
10908 to omit the mac, NONE can be set for an encryption algorithm.
10909 New code is modified to use the enhanced PKCS12_create()
10910 instead of the low-level API.
10911
10912 *Steve Henson*
10913
10914 * Extend ASN1 encoder to support indefinite length constructed
10915 encoding. This can output sequences tags and octet strings in
10916 this form. Modify pk7_asn1.c to support indefinite length
10917 encoding. This is experimental and needs additional code to
10918 be useful, such as an ASN1 bio and some enhanced streaming
10919 PKCS#7 code.
10920
10921 Extend template encode functionality so that tagging is passed
10922 down to the template encoder.
10923
10924 *Steve Henson*
10925
10926 * Let 'openssl req' fail if an argument to '-newkey' is not
10927 recognized instead of using RSA as a default.
10928
10929 *Bodo Moeller*
10930
10931 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
10932 As these are not official, they are not included in "ALL";
10933 the "ECCdraft" ciphersuite group alias can be used to select them.
10934
10935 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)*
10936
10937 * Add ECDH engine support.
10938
10939 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)*
10940
10941 * Add ECDH in new directory crypto/ecdh/.
10942
10943 *Douglas Stebila (Sun Microsystems Laboratories)*
10944
10945 * Let BN_rand_range() abort with an error after 100 iterations
10946 without success (which indicates a broken PRNG).
10947
10948 *Bodo Moeller*
10949
10950 * Change BN_mod_sqrt() so that it verifies that the input value
10951 is really the square of the return value. (Previously,
10952 BN_mod_sqrt would show GIGO behaviour.)
10953
10954 *Bodo Moeller*
10955
10956 * Add named elliptic curves over binary fields from X9.62, SECG,
10957 and WAP/WTLS; add OIDs that were still missing.
10958
10959 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)*
10960
10961 * Extend the EC library for elliptic curves over binary fields
10962 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
10963 New EC_METHOD:
10964
10965 EC_GF2m_simple_method
10966
10967 New API functions:
10968
10969 EC_GROUP_new_curve_GF2m
10970 EC_GROUP_set_curve_GF2m
10971 EC_GROUP_get_curve_GF2m
10972 EC_POINT_set_affine_coordinates_GF2m
10973 EC_POINT_get_affine_coordinates_GF2m
10974 EC_POINT_set_compressed_coordinates_GF2m
10975
10976 Point compression for binary fields is disabled by default for
10977 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
10978 enable it).
10979
10980 As binary polynomials are represented as BIGNUMs, various members
10981 of the EC_GROUP and EC_POINT data structures can be shared
10982 between the implementations for prime fields and binary fields;
10983 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m)
10984 are essentially identical to their `..._GFp` counterparts.
10985 (For simplicity, the `..._GFp` prefix has been dropped from
10986 various internal method names.)
10987
10988 An internal 'field_div' method (similar to 'field_mul' and
10989 'field_sqr') has been added; this is used only for binary fields.
10990
10991 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)*
10992
10993 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
10994 through methods ('mul', 'precompute_mult').
10995
10996 The generic implementations (now internally called 'ec_wNAF_mul'
10997 and 'ec_wNAF_precomputed_mult') remain the default if these
10998 methods are undefined.
10999
11000 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)*
11001
11002 * New function EC_GROUP_get_degree, which is defined through
11003 EC_METHOD. For curves over prime fields, this returns the bit
11004 length of the modulus.
11005
11006 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)*
11007
11008 * New functions EC_GROUP_dup, EC_POINT_dup.
11009 (These simply call ..._new and ..._copy).
11010
11011 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)*
11012
11013 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
11014 Polynomials are represented as BIGNUMs (where the sign bit is not
11015 used) in the following functions [macros]:
11016
11017 BN_GF2m_add
11018 BN_GF2m_sub [= BN_GF2m_add]
11019 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
11020 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
11021 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
11022 BN_GF2m_mod_inv
11023 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
11024 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
11025 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
11026 BN_GF2m_cmp [= BN_ucmp]
11027
11028 (Note that only the 'mod' functions are actually for fields GF(2^m).
11029 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
11030
11031 For some functions, an the irreducible polynomial defining a
11032 field can be given as an 'unsigned int[]' with strictly
11033 decreasing elements giving the indices of those bits that are set;
11034 i.e., p[] represents the polynomial
11035 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
11036 where
11037 p[0] > p[1] > ... > p[k] = 0.
11038 This applies to the following functions:
11039
11040 BN_GF2m_mod_arr
11041 BN_GF2m_mod_mul_arr
11042 BN_GF2m_mod_sqr_arr
11043 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
11044 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
11045 BN_GF2m_mod_exp_arr
11046 BN_GF2m_mod_sqrt_arr
11047 BN_GF2m_mod_solve_quad_arr
11048 BN_GF2m_poly2arr
11049 BN_GF2m_arr2poly
11050
11051 Conversion can be performed by the following functions:
11052
11053 BN_GF2m_poly2arr
11054 BN_GF2m_arr2poly
11055
11056 bntest.c has additional tests for binary polynomial arithmetic.
11057
11058 Two implementations for BN_GF2m_mod_div() are available.
11059 The default algorithm simply uses BN_GF2m_mod_inv() and
11060 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
11061 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
11062 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
11063
11064 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)*
11065
11066 * Add new error code 'ERR_R_DISABLED' that can be used when some
11067 functionality is disabled at compile-time.
11068
11069 *Douglas Stebila <[email protected]>*
11070
11071 * Change default behaviour of 'openssl asn1parse' so that more
11072 information is visible when viewing, e.g., a certificate:
11073
11074 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
11075 mode the content of non-printable OCTET STRINGs is output in a
11076 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
11077 avoid the appearance of a printable string.
11078
11079 *Nils Larsch <[email protected]>*
11080
11081 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
11082 functions
11083 EC_GROUP_set_asn1_flag()
11084 EC_GROUP_get_asn1_flag()
11085 EC_GROUP_set_point_conversion_form()
11086 EC_GROUP_get_point_conversion_form()
11087 These control ASN1 encoding details:
11088 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
11089 has been set to OPENSSL_EC_NAMED_CURVE.
11090 - Points are encoded in uncompressed form by default; options for
11091 asn1_for are as for point2oct, namely
11092 POINT_CONVERSION_COMPRESSED
11093 POINT_CONVERSION_UNCOMPRESSED
11094 POINT_CONVERSION_HYBRID
11095
11096 Also add 'seed' and 'seed_len' members to EC_GROUP with access
11097 functions
11098 EC_GROUP_set_seed()
11099 EC_GROUP_get0_seed()
11100 EC_GROUP_get_seed_len()
11101 This is used only for ASN1 purposes (so far).
11102
11103 *Nils Larsch <[email protected]>*
11104
11105 * Add 'field_type' member to EC_METHOD, which holds the NID
11106 of the appropriate field type OID. The new function
11107 EC_METHOD_get_field_type() returns this value.
11108
11109 *Nils Larsch <[email protected]>*
11110
11111 * Add functions
11112 EC_POINT_point2bn()
11113 EC_POINT_bn2point()
11114 EC_POINT_point2hex()
11115 EC_POINT_hex2point()
11116 providing useful interfaces to EC_POINT_point2oct() and
11117 EC_POINT_oct2point().
11118
11119 *Nils Larsch <[email protected]>*
11120
11121 * Change internals of the EC library so that the functions
11122 EC_GROUP_set_generator()
11123 EC_GROUP_get_generator()
11124 EC_GROUP_get_order()
11125 EC_GROUP_get_cofactor()
11126 are implemented directly in crypto/ec/ec_lib.c and not dispatched
11127 to methods, which would lead to unnecessary code duplication when
11128 adding different types of curves.
11129
11130 *Nils Larsch <[email protected]> with input by Bodo Moeller*
11131
11132 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
11133 arithmetic, and such that modified wNAFs are generated
11134 (which avoid length expansion in many cases).
11135
11136 *Bodo Moeller*
11137
11138 * Add a function EC_GROUP_check_discriminant() (defined via
11139 EC_METHOD) that verifies that the curve discriminant is non-zero.
11140
11141 Add a function EC_GROUP_check() that makes some sanity tests
11142 on a EC_GROUP, its generator and order. This includes
11143 EC_GROUP_check_discriminant().
11144
11145 *Nils Larsch <[email protected]>*
11146
11147 * Add ECDSA in new directory crypto/ecdsa/.
11148
11149 Add applications 'openssl ecparam' and 'openssl ecdsa'
11150 (these are based on 'openssl dsaparam' and 'openssl dsa').
11151
11152 ECDSA support is also included in various other files across the
11153 library. Most notably,
11154 - 'openssl req' now has a '-newkey ecdsa:file' option;
11155 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
11156 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
11157 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
11158 them suitable for ECDSA where domain parameters must be
11159 extracted before the specific public key;
11160 - ECDSA engine support has been added.
11161
11162 *Nils Larsch <[email protected]>*
11163
11164 * Include some named elliptic curves, and add OIDs from X9.62,
11165 SECG, and WAP/WTLS. Each curve can be obtained from the new
11166 function
11167 EC_GROUP_new_by_curve_name(),
11168 and the list of available named curves can be obtained with
11169 EC_get_builtin_curves().
11170 Also add a 'curve_name' member to EC_GROUP objects, which can be
11171 accessed via
11172 EC_GROUP_set_curve_name()
11173 EC_GROUP_get_curve_name()
11174
11175 *Nils Larsch <[email protected], Bodo Moeller*
11176
11177 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
11178 was actually never needed) and in BN_mul(). The removal in BN_mul()
11179 required a small change in bn_mul_part_recursive() and the addition
11180 of the functions bn_cmp_part_words(), bn_sub_part_words() and
11181 bn_add_part_words(), which do the same thing as bn_cmp_words(),
11182 bn_sub_words() and bn_add_words() except they take arrays with
11183 differing sizes.
11184
11185 *Richard Levitte*
11186
11187### Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
11188
11189 * Cleanse PEM buffers before freeing them since they may contain
11190 sensitive data.
11191
11192 *Benjamin Bennett <[email protected]>*
11193
11194 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
11195 a ciphersuite string such as "DEFAULT:RSA" cannot enable
11196 authentication-only ciphersuites.
11197
11198 *Bodo Moeller*
11199
11200 * Since AES128 and AES256 share a single mask bit in the logic of
11201 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
11202 kludge to work properly if AES128 is available and AES256 isn't.
11203
11204 *Victor Duchovni*
11205
11206 * Expand security boundary to match 1.1.1 module.
11207
11208 *Steve Henson*
11209
11210 * Remove redundant features: hash file source, editing of test vectors
11211 modify fipsld to use external fips_premain.c signature.
11212
11213 *Steve Henson*
11214
11215 * New perl script mkfipsscr.pl to create shell scripts or batch files to
11216 run algorithm test programs.
11217
11218 *Steve Henson*
11219
11220 * Make algorithm test programs more tolerant of whitespace.
11221
11222 *Steve Henson*
11223
11224 * Have SSL/TLS server implementation tolerate "mismatched" record
11225 protocol version while receiving ClientHello even if the
11226 ClientHello is fragmented. (The server can't insist on the
11227 particular protocol version it has chosen before the ServerHello
11228 message has informed the client about his choice.)
11229
11230 *Bodo Moeller*
11231
11232 * Load error codes if they are not already present instead of using a
11233 static variable. This allows them to be cleanly unloaded and reloaded.
11234
11235 *Steve Henson*
11236
11237### Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
11238
11239 * Introduce limits to prevent malicious keys being able to
11240 cause a denial of service. ([CVE-2006-2940])
11241
11242 *Steve Henson, Bodo Moeller*
11243
11244 * Fix ASN.1 parsing of certain invalid structures that can result
11245 in a denial of service. ([CVE-2006-2937]) [Steve Henson]
11246
11247 * Fix buffer overflow in SSL_get_shared_ciphers() function.
11248 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team]
11249
11250 * Fix SSL client code which could crash if connecting to a
11251 malicious SSLv2 server. ([CVE-2006-4343])
11252
11253 *Tavis Ormandy and Will Drewry, Google Security Team*
11254
11255 * Change ciphersuite string processing so that an explicit
11256 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
11257 will no longer include "AES128-SHA"), and any other similar
11258 ciphersuite (same bitmap) from *other* protocol versions (so that
11259 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
11260 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
11261 changes from 0.9.8b and 0.9.8d.
11262
11263 *Bodo Moeller*
11264
11265### Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
11266
11267 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
11268 ([CVE-2006-4339]) [Ben Laurie and Google Security Team]
11269
11270 * Change the Unix randomness entropy gathering to use poll() when
11271 possible instead of select(), since the latter has some
11272 undesirable limitations.
11273
11274 *Darryl Miles via Richard Levitte and Bodo Moeller*
11275
11276 * Disable rogue ciphersuites:
11277
11278 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
11279 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
11280 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
11281
11282 The latter two were purportedly from
11283 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
11284 appear there.
11285
11286 Also deactivate the remaining ciphersuites from
11287 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
11288 unofficial, and the ID has long expired.
11289
11290 *Bodo Moeller*
11291
11292 * Fix RSA blinding Heisenbug (problems sometimes occurred on
11293 dual-core machines) and other potential thread-safety issues.
11294
11295 *Bodo Moeller*
11296
11297### Changes between 0.9.7i and 0.9.7j [04 May 2006]
11298
11299 * Adapt fipsld and the build system to link against the validated FIPS
11300 module in FIPS mode.
11301
11302 *Steve Henson*
11303
11304 * Fixes for VC++ 2005 build under Windows.
11305
11306 *Steve Henson*
11307
11308 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
11309 from a Windows bash shell such as MSYS. It is autodetected from the
11310 "config" script when run from a VC++ environment. Modify standard VC++
11311 build to use fipscanister.o from the GNU make build.
11312
11313 *Steve Henson*
11314
11315### Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
11316
11317 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
11318 The value now differs depending on if you build for FIPS or not.
11319 BEWARE! A program linked with a shared FIPSed libcrypto can't be
11320 safely run with a non-FIPSed libcrypto, as it may crash because of
11321 the difference induced by this change.
11322
11323 *Andy Polyakov*
11324
11325### Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
11326
11327 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
11328 (part of SSL_OP_ALL). This option used to disable the
11329 countermeasure against man-in-the-middle protocol-version
11330 rollback in the SSL 2.0 server implementation, which is a bad
11331 idea. ([CVE-2005-2969])
11332
11333 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
11334 for Information Security, National Institute of Advanced Industrial
11335 Science and Technology [AIST, Japan)]*
11336
11337 * Minimal support for X9.31 signatures and PSS padding modes. This is
11338 mainly for FIPS compliance and not fully integrated at this stage.
11339
11340 *Steve Henson*
11341
11342 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
11343 the exponentiation using a fixed-length exponent. (Otherwise,
11344 the information leaked through timing could expose the secret key
11345 after many signatures; cf. Bleichenbacher's attack on DSA with
11346 biased k.)
11347
11348 *Bodo Moeller*
11349
11350 * Make a new fixed-window mod_exp implementation the default for
11351 RSA, DSA, and DH private-key operations so that the sequence of
11352 squares and multiplies and the memory access pattern are
11353 independent of the particular secret key. This will mitigate
11354 cache-timing and potential related attacks.
11355
11356 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
11357 and this is automatically used by BN_mod_exp_mont() if the new flag
11358 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
11359 will use this BN flag for private exponents unless the flag
11360 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
11361 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
11362
11363 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller*
11364
11365 * Change the client implementation for SSLv23_method() and
11366 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
11367 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
11368 (Previously, the SSL 2.0 backwards compatible Client Hello
11369 message format would be used even with SSL_OP_NO_SSLv2.)
11370
11371 *Bodo Moeller*
11372
11373 * Add support for smime-type MIME parameter in S/MIME messages which some
11374 clients need.
11375
11376 *Steve Henson*
11377
11378 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in
11379 a threadsafe manner. Modify rsa code to use new function and add calls
11380 to dsa and dh code (which had race conditions before).
11381
11382 *Steve Henson*
11383
11384 * Include the fixed error library code in the C error file definitions
11385 instead of fixing them up at runtime. This keeps the error code
11386 structures constant.
11387
11388 *Steve Henson*
11389
11390### Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
11391
11392[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
11393OpenSSL 0.9.8.]
11394
11395 * Fixes for newer kerberos headers. NB: the casts are needed because
11396 the 'length' field is signed on one version and unsigned on another
11397 with no (?) obvious way to tell the difference, without these VC++
11398 complains. Also the "definition" of FAR (blank) is no longer included
11399 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
11400 some needed definitions.
11401
11402 *Steve Henson*
11403
11404 * Undo Cygwin change.
11405
11406 *Ulf Möller*
11407
11408 * Added support for proxy certificates according to RFC 3820.
11409 Because they may be a security thread to unaware applications,
11410 they must be explicitly allowed in run-time. See
11411 docs/HOWTO/proxy_certificates.txt for further information.
11412
11413 *Richard Levitte*
11414
11415### Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
11416
11417 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
11418 server and client random values. Previously
11419 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
11420 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
11421
11422 This change has negligible security impact because:
11423
11424 1. Server and client random values still have 24 bytes of pseudo random
11425 data.
11426
11427 2. Server and client random values are sent in the clear in the initial
11428 handshake.
11429
11430 3. The master secret is derived using the premaster secret (48 bytes in
11431 size for static RSA ciphersuites) as well as client server and random
11432 values.
11433
11434 The OpenSSL team would like to thank the UK NISCC for bringing this issue
11435 to our attention.
11436
11437 *Stephen Henson, reported by UK NISCC*
11438
11439 * Use Windows randomness collection on Cygwin.
11440
11441 *Ulf Möller*
11442
11443 * Fix hang in EGD/PRNGD query when communication socket is closed
11444 prematurely by EGD/PRNGD.
11445
11446 *Darren Tucker <[email protected]> via Lutz Jänicke, resolves #1014*
11447
11448 * Prompt for pass phrases when appropriate for PKCS12 input format.
11449
11450 *Steve Henson*
11451
11452 * Back-port of selected performance improvements from development
11453 branch, as well as improved support for PowerPC platforms.
11454
11455 *Andy Polyakov*
11456
11457 * Add lots of checks for memory allocation failure, error codes to indicate
11458 failure and freeing up memory if a failure occurs.
11459
11460 *Nauticus Networks SSL Team <[email protected]>, Steve Henson*
11461
11462 * Add new -passin argument to dgst.
11463
11464 *Steve Henson*
11465
11466 * Perform some character comparisons of different types in X509_NAME_cmp:
11467 this is needed for some certificates that re-encode DNs into UTF8Strings
11468 (in violation of RFC3280) and can't or won't issue name rollover
11469 certificates.
11470
11471 *Steve Henson*
11472
11473 * Make an explicit check during certificate validation to see that
11474 the CA setting in each certificate on the chain is correct. As a
11475 side effect always do the following basic checks on extensions,
11476 not just when there's an associated purpose to the check:
11477
11478 - if there is an unhandled critical extension (unless the user
11479 has chosen to ignore this fault)
11480 - if the path length has been exceeded (if one is set at all)
11481 - that certain extensions fit the associated purpose (if one has
11482 been given)
11483
11484 *Richard Levitte*
11485
11486### Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
11487
11488 * Avoid a race condition when CRLs are checked in a multi threaded
11489 environment. This would happen due to the reordering of the revoked
11490 entries during signature checking and serial number lookup. Now the
11491 encoding is cached and the serial number sort performed under a lock.
11492 Add new STACK function sk_is_sorted().
11493
11494 *Steve Henson*
11495
11496 * Add Delta CRL to the extension code.
11497
11498 *Steve Henson*
11499
11500 * Various fixes to s3_pkt.c so alerts are sent properly.
11501
11502 *David Holmes <[email protected]>*
11503
11504 * Reduce the chances of duplicate issuer name and serial numbers (in
11505 violation of RFC3280) using the OpenSSL certificate creation utilities.
11506 This is done by creating a random 64 bit value for the initial serial
11507 number when a serial number file is created or when a self signed
11508 certificate is created using 'openssl req -x509'. The initial serial
11509 number file is created using 'openssl x509 -next_serial' in CA.pl
11510 rather than being initialized to 1.
11511
11512 *Steve Henson*
11513
11514### Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
11515
11516 * Fix null-pointer assignment in do_change_cipher_spec() revealed
11517 by using the Codenomicon TLS Test Tool ([CVE-2004-0079])
11518
11519 *Joe Orton, Steve Henson*
11520
11521 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
11522 ([CVE-2004-0112])
11523
11524 *Joe Orton, Steve Henson*
11525
11526 * Make it possible to have multiple active certificates with the same
11527 subject in the CA index file. This is done only if the keyword
11528 'unique_subject' is set to 'no' in the main CA section (default
11529 if 'CA_default') of the configuration file. The value is saved
11530 with the database itself in a separate index attribute file,
11531 named like the index file with '.attr' appended to the name.
11532
11533 *Richard Levitte*
11534
11535 * X509 verify fixes. Disable broken certificate workarounds when
11536 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
11537 keyUsage extension present. Don't accept CRLs with unhandled critical
11538 extensions: since verify currently doesn't process CRL extensions this
11539 rejects a CRL with *any* critical extensions. Add new verify error codes
11540 for these cases.
11541
11542 *Steve Henson*
11543
11544 * When creating an OCSP nonce use an OCTET STRING inside the extnValue.
11545 A clarification of RFC2560 will require the use of OCTET STRINGs and
11546 some implementations cannot handle the current raw format. Since OpenSSL
11547 copies and compares OCSP nonces as opaque blobs without any attempt at
11548 parsing them this should not create any compatibility issues.
11549
11550 *Steve Henson*
11551
11552 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
11553 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
11554 this HMAC (and other) operations are several times slower than OpenSSL
11555 < 0.9.7.
11556
11557 *Steve Henson*
11558
11559 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
11560
11561 *Peter Sylvester <[email protected]>*
11562
11563 * Use the correct content when signing type "other".
11564
11565 *Steve Henson*
11566
11567### Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
11568
11569 * Fix various bugs revealed by running the NISCC test suite:
11570
11571 Stop out of bounds reads in the ASN1 code when presented with
11572 invalid tags (CVE-2003-0543 and CVE-2003-0544).
11573
11574 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]).
11575
11576 If verify callback ignores invalid public key errors don't try to check
11577 certificate signature with the NULL public key.
11578
11579 *Steve Henson*
11580
11581 * New -ignore_err option in ocsp application to stop the server
11582 exiting on the first error in a request.
11583
11584 *Steve Henson*
11585
11586 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
11587 if the server requested one: as stated in TLS 1.0 and SSL 3.0
11588 specifications.
11589
11590 *Steve Henson*
11591
11592 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
11593 extra data after the compression methods not only for TLS 1.0
11594 but also for SSL 3.0 (as required by the specification).
11595
11596 *Bodo Moeller; problem pointed out by Matthias Loepfe*
11597
11598 * Change X509_certificate_type() to mark the key as exported/exportable
11599 when it's 512 *bits* long, not 512 bytes.
11600
11601 *Richard Levitte*
11602
11603 * Change AES_cbc_encrypt() so it outputs exact multiple of
11604 blocks during encryption.
11605
11606 *Richard Levitte*
11607
11608 * Various fixes to base64 BIO and non blocking I/O. On write
11609 flushes were not handled properly if the BIO retried. On read
11610 data was not being buffered properly and had various logic bugs.
11611 This also affects blocking I/O when the data being decoded is a
11612 certain size.
11613
11614 *Steve Henson*
11615
11616 * Various S/MIME bugfixes and compatibility changes:
11617 output correct application/pkcs7 MIME type if
11618 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
11619 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
11620 of files as .eml work). Correctly handle very long lines in MIME
11621 parser.
11622
11623 *Steve Henson*
11624
11625### Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
11626
11627 * Countermeasure against the Klima-Pokorny-Rosa extension of
11628 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
11629 a protocol version number mismatch like a decryption error
11630 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
11631
11632 *Bodo Moeller*
11633
11634 * Turn on RSA blinding by default in the default implementation
11635 to avoid a timing attack. Applications that don't want it can call
11636 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
11637 They would be ill-advised to do so in most cases.
11638
11639 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller*
11640
11641 * Change RSA blinding code so that it works when the PRNG is not
11642 seeded (in this case, the secret RSA exponent is abused as
11643 an unpredictable seed -- if it is not unpredictable, there
11644 is no point in blinding anyway). Make RSA blinding thread-safe
11645 by remembering the creator's thread ID in rsa->blinding and
11646 having all other threads use local one-time blinding factors
11647 (this requires more computation than sharing rsa->blinding, but
11648 avoids excessive locking; and if an RSA object is not shared
11649 between threads, blinding will still be very fast).
11650
11651 *Bodo Moeller*
11652
11653 * Fixed a typo bug that would cause ENGINE_set_default() to set an
11654 ENGINE as defaults for all supported algorithms irrespective of
11655 the 'flags' parameter. 'flags' is now honoured, so applications
11656 should make sure they are passing it correctly.
11657
11658 *Geoff Thorpe*
11659
11660 * Target "mingw" now allows native Windows code to be generated in
11661 the Cygwin environment as well as with the MinGW compiler.
11662
11663 *Ulf Moeller*
11664
11665### Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
11666
11667 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
11668 via timing by performing a MAC computation even if incorrect
11669 block cipher padding has been found. This is a countermeasure
11670 against active attacks where the attacker has to distinguish
11671 between bad padding and a MAC verification error. ([CVE-2003-0078])
11672
11673 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
11674 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
11675 Martin Vuagnoux (EPFL, Ilion)*
11676
11677 * Make the no-err option work as intended. The intention with no-err
11678 is not to have the whole error stack handling routines removed from
11679 libcrypto, it's only intended to remove all the function name and
11680 reason texts, thereby removing some of the footprint that may not
11681 be interesting if those errors aren't displayed anyway.
11682
11683 NOTE: it's still possible for any application or module to have its
11684 own set of error texts inserted. The routines are there, just not
11685 used by default when no-err is given.
11686
11687 *Richard Levitte*
11688
11689 * Add support for FreeBSD on IA64.
11690
11691 *[email protected] via Richard Levitte, resolves #454*
11692
11693 * Adjust DES_cbc_cksum() so it returns the same value as the MIT
11694 Kerberos function mit_des_cbc_cksum(). Before this change,
11695 the value returned by DES_cbc_cksum() was like the one from
11696 mit_des_cbc_cksum(), except the bytes were swapped.
11697
11698 *Kevin Greaney <[email protected]> and Richard Levitte*
11699
11700 * Allow an application to disable the automatic SSL chain building.
11701 Before this a rather primitive chain build was always performed in
11702 ssl3_output_cert_chain(): an application had no way to send the
11703 correct chain if the automatic operation produced an incorrect result.
11704
11705 Now the chain builder is disabled if either:
11706
11707 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
11708
11709 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
11710
11711 The reasoning behind this is that an application would not want the
11712 auto chain building to take place if extra chain certificates are
11713 present and it might also want a means of sending no additional
11714 certificates (for example the chain has two certificates and the
11715 root is omitted).
11716
11717 *Steve Henson*
11718
11719 * Add the possibility to build without the ENGINE framework.
11720
11721 *Steven Reddie <[email protected]> via Richard Levitte*
11722
11723 * Under Win32 gmtime() can return NULL: check return value in
11724 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
11725
11726 *Steve Henson*
11727
11728 * DSA routines: under certain error conditions uninitialized BN objects
11729 could be freed. Solution: make sure initialization is performed early
11730 enough. (Reported and fix supplied by Ivan D Nestlerode <[email protected]>,
11731 Nils Larsch <[email protected]> via PR#459)
11732
11733 *Lutz Jaenicke*
11734
11735 * Another fix for SSLv2 session ID handling: the session ID was incorrectly
11736 checked on reconnect on the client side, therefore session resumption
11737 could still fail with a "ssl session id is different" error. This
11738 behaviour is masked when SSL_OP_ALL is used due to
11739 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
11740 Behaviour observed by Crispin Flowerday <[email protected]> as
11741 followup to PR #377.
11742
11743 *Lutz Jaenicke*
11744
11745 * IA-32 assembler support enhancements: unified ELF targets, support
11746 for SCO/Caldera platforms, fix for Cygwin shared build.
11747
11748 *Andy Polyakov*
11749
11750 * Add support for FreeBSD on sparc64. As a consequence, support for
11751 FreeBSD on non-x86 processors is separate from x86 processors on
11752 the config script, much like the NetBSD support.
11753
11754 *Richard Levitte & Kris Kennaway <[email protected]>*
11755
11756### Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
11757
11758[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
11759OpenSSL 0.9.7.]
11760
11761 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED
11762 code (06) was taken as the first octet of the session ID and the last
11763 octet was ignored consequently. As a result SSLv2 client side session
11764 caching could not have worked due to the session ID mismatch between
11765 client and server.
11766 Behaviour observed by Crispin Flowerday <[email protected]> as
11767 PR #377.
11768
11769 *Lutz Jaenicke*
11770
11771 * Change the declaration of needed Kerberos libraries to use EX_LIBS
11772 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
11773 removed entirely.
11774
11775 *Richard Levitte*
11776
11777 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
11778 seems that in spite of existing for more than a year, many application
11779 author have done nothing to provide the necessary callbacks, which
11780 means that this particular engine will not work properly anywhere.
11781 This is a very unfortunate situation which forces us, in the name
11782 of usability, to give the hw_ncipher.c a static lock, which is part
11783 of libcrypto.
11784 NOTE: This is for the 0.9.7 series ONLY. This hack will never
11785 appear in 0.9.8 or later. We EXPECT application authors to have
11786 dealt properly with this when 0.9.8 is released (unless we actually
11787 make such changes in the libcrypto locking code that changes will
11788 have to be made anyway).
11789
11790 *Richard Levitte*
11791
11792 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
11793 octets have been read, EOF or an error occurs. Without this change
11794 some truncated ASN1 structures will not produce an error.
11795
11796 *Steve Henson*
11797
11798 * Disable Heimdal support, since it hasn't been fully implemented.
11799 Still give the possibility to force the use of Heimdal, but with
11800 warnings and a request that patches get sent to openssl-dev.
11801
11802 *Richard Levitte*
11803
11804 * Add the VC-CE target, introduce the WINCE sysname, and add
11805 INSTALL.WCE and appropriate conditionals to make it build.
11806
11807 *Steven Reddie <[email protected]> via Richard Levitte*
11808
11809 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
11810 cygssl-x.y.z.dll, where x, y and z are the major, minor and
11811 edit numbers of the version.
11812
11813 *Corinna Vinschen <[email protected]> and Richard Levitte*
11814
11815 * Introduce safe string copy and catenation functions
11816 (BUF_strlcpy() and BUF_strlcat()).
11817
11818 *Ben Laurie (CHATS) and Richard Levitte*
11819
11820 * Avoid using fixed-size buffers for one-line DNs.
11821
11822 *Ben Laurie (CHATS)*
11823
11824 * Add BUF_MEM_grow_clean() to avoid information leakage when
11825 resizing buffers containing secrets, and use where appropriate.
11826
11827 *Ben Laurie (CHATS)*
11828
11829 * Avoid using fixed size buffers for configuration file location.
11830
11831 *Ben Laurie (CHATS)*
11832
11833 * Avoid filename truncation for various CA files.
11834
11835 *Ben Laurie (CHATS)*
11836
11837 * Use sizeof in preference to magic numbers.
11838
11839 *Ben Laurie (CHATS)*
11840
11841 * Avoid filename truncation in cert requests.
11842
11843 *Ben Laurie (CHATS)*
11844
11845 * Add assertions to check for (supposedly impossible) buffer
11846 overflows.
11847
11848 *Ben Laurie (CHATS)*
11849
11850 * Don't cache truncated DNS entries in the local cache (this could
11851 potentially lead to a spoofing attack).
11852
11853 *Ben Laurie (CHATS)*
11854
11855 * Fix various buffers to be large enough for hex/decimal
11856 representations in a platform independent manner.
11857
11858 *Ben Laurie (CHATS)*
11859
11860 * Add CRYPTO_realloc_clean() to avoid information leakage when
11861 resizing buffers containing secrets, and use where appropriate.
11862
11863 *Ben Laurie (CHATS)*
11864
11865 * Add BIO_indent() to avoid much slightly worrying code to do
11866 indents.
11867
11868 *Ben Laurie (CHATS)*
11869
11870 * Convert sprintf()/BIO_puts() to BIO_printf().
11871
11872 *Ben Laurie (CHATS)*
11873
11874 * buffer_gets() could terminate with the buffer only half
11875 full. Fixed.
11876
11877 *Ben Laurie (CHATS)*
11878
11879 * Add assertions to prevent user-supplied crypto functions from
11880 overflowing internal buffers by having large block sizes, etc.
11881
11882 *Ben Laurie (CHATS)*
11883
11884 * New OPENSSL_assert() macro (similar to assert(), but enabled
11885 unconditionally).
11886
11887 *Ben Laurie (CHATS)*
11888
11889 * Eliminate unused copy of key in RC4.
11890
11891 *Ben Laurie (CHATS)*
11892
11893 * Eliminate unused and incorrectly sized buffers for IV in pem.h.
11894
11895 *Ben Laurie (CHATS)*
11896
11897 * Fix off-by-one error in EGD path.
11898
11899 *Ben Laurie (CHATS)*
11900
11901 * If RANDFILE path is too long, ignore instead of truncating.
11902
11903 *Ben Laurie (CHATS)*
11904
11905 * Eliminate unused and incorrectly sized X.509 structure
11906 CBCParameter.
11907
11908 *Ben Laurie (CHATS)*
11909
11910 * Eliminate unused and dangerous function knumber().
11911
11912 *Ben Laurie (CHATS)*
11913
11914 * Eliminate unused and dangerous structure, KSSL_ERR.
11915
11916 *Ben Laurie (CHATS)*
11917
11918 * Protect against overlong session ID context length in an encoded
11919 session object. Since these are local, this does not appear to be
11920 exploitable.
11921
11922 *Ben Laurie (CHATS)*
11923
11924 * Change from security patch (see 0.9.6e below) that did not affect
11925 the 0.9.6 release series:
11926
11927 Remote buffer overflow in SSL3 protocol - an attacker could
11928 supply an oversized master key in Kerberos-enabled versions.
11929 ([CVE-2002-0657])
11930
11931 *Ben Laurie (CHATS)*
11932
11933 * Change the SSL kerb5 codes to match RFC 2712.
11934
11935 *Richard Levitte*
11936
11937 * Make -nameopt work fully for req and add -reqopt switch.
11938
11939 *Michael Bell <[email protected]>, Steve Henson*
11940
11941 * The "block size" for block ciphers in CFB and OFB mode should be 1.
11942
11943 *Steve Henson, reported by Yngve Nysaeter Pettersen <[email protected]>*
11944
11945 * Make sure tests can be performed even if the corresponding algorithms
11946 have been removed entirely. This was also the last step to make
11947 OpenSSL compilable with DJGPP under all reasonable conditions.
11948
11949 *Richard Levitte, Doug Kaufman <[email protected]>*
11950
11951 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
11952 to allow version independent disabling of normally unselected ciphers,
11953 which may be activated as a side-effect of selecting a single cipher.
11954
11955 (E.g., cipher list string "RSA" enables ciphersuites that are left
11956 out of "ALL" because they do not provide symmetric encryption.
11957 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
11958
11959 *Lutz Jaenicke, Bodo Moeller*
11960
11961 * Add appropriate support for separate platform-dependent build
11962 directories. The recommended way to make a platform-dependent
11963 build directory is the following (tested on Linux), maybe with
11964 some local tweaks:
11965
11966 # Place yourself outside of the OpenSSL source tree. In
11967 # this example, the environment variable OPENSSL_SOURCE
11968 # is assumed to contain the absolute OpenSSL source directory.
11969 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
11970 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
11971 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
11972 mkdir -p `dirname $F`
11973 ln -s $OPENSSL_SOURCE/$F $F
11974 done
11975
11976 To be absolutely sure not to disturb the source tree, a "make clean"
11977 is a good thing. If it isn't successful, don't worry about it,
11978 it probably means the source directory is very clean.
11979
11980 *Richard Levitte*
11981
11982 * Make sure any ENGINE control commands make local copies of string
11983 pointers passed to them whenever necessary. Otherwise it is possible
11984 the caller may have overwritten (or deallocated) the original string
11985 data when a later ENGINE operation tries to use the stored values.
11986
11987 *Götz Babin-Ebell <[email protected]>*
11988
11989 * Improve diagnostics in file reading and command-line digests.
11990
11991 *Ben Laurie aided and abetted by Solar Designer <[email protected]>*
11992
11993 * Add AES modes CFB and OFB to the object database. Correct an
11994 error in AES-CFB decryption.
11995
11996 *Richard Levitte*
11997
11998 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
11999 allows existing EVP_CIPHER_CTX structures to be reused after
12000 calling `EVP_*Final()`. This behaviour is used by encryption
12001 BIOs and some applications. This has the side effect that
12002 applications must explicitly clean up cipher contexts with
12003 EVP_CIPHER_CTX_cleanup() or they will leak memory.
12004
12005 *Steve Henson*
12006
12007 * Check the values of dna and dnb in bn_mul_recursive before calling
12008 bn_mul_comba (a non zero value means the a or b arrays do not contain
12009 n2 elements) and fallback to bn_mul_normal if either is not zero.
12010
12011 *Steve Henson*
12012
12013 * Fix escaping of non-ASCII characters when using the -subj option
12014 of the "openssl req" command line tool. (Robert Joop <[email protected]>)
12015
12016 *Lutz Jaenicke*
12017
12018 * Make object definitions compliant to LDAP (RFC2256): SN is the short
12019 form for "surname", serialNumber has no short form.
12020 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
12021 therefore remove "mail" short name for "internet 7".
12022 The OID for unique identifiers in X509 certificates is
12023 x500UniqueIdentifier, not uniqueIdentifier.
12024 Some more OID additions. (Michael Bell <[email protected]>)
12025
12026 *Lutz Jaenicke*
12027
12028 * Add an "init" command to the ENGINE config module and auto initialize
12029 ENGINEs. Without any "init" command the ENGINE will be initialized
12030 after all ctrl commands have been executed on it. If init=1 the
12031 ENGINE is initialized at that point (ctrls before that point are run
12032 on the uninitialized ENGINE and after on the initialized one). If
12033 init=0 then the ENGINE will not be initialized at all.
12034
12035 *Steve Henson*
12036
12037 * Fix the 'app_verify_callback' interface so that the user-defined
12038 argument is actually passed to the callback: In the
12039 SSL_CTX_set_cert_verify_callback() prototype, the callback
12040 declaration has been changed from
12041 int (*cb)()
12042 into
12043 int (*cb)(X509_STORE_CTX *,void *);
12044 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
12045 i=s->ctx->app_verify_callback(&ctx)
12046 has been changed into
12047 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
12048
12049 To update applications using SSL_CTX_set_cert_verify_callback(),
12050 a dummy argument can be added to their callback functions.
12051
12052 *D. K. Smetters <[email protected]>*
12053
12054 * Added the '4758cca' ENGINE to support IBM 4758 cards.
12055
12056 *Maurice Gittens <[email protected]>, touchups by Geoff Thorpe*
12057
12058 * Add and OPENSSL_LOAD_CONF define which will cause
12059 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
12060 This allows older applications to transparently support certain
12061 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
12062 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
12063 load the config file and OPENSSL_add_all_algorithms_conf() which will
12064 always load it have also been added.
12065
12066 *Steve Henson*
12067
12068 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
12069 Adjust NIDs and EVP layer.
12070
12071 *Stephen Sprunk <[email protected]> and Richard Levitte*
12072
12073 * Config modules support in openssl utility.
12074
12075 Most commands now load modules from the config file,
12076 though in a few (such as version) this isn't done
12077 because it couldn't be used for anything.
12078
12079 In the case of ca and req the config file used is
12080 the same as the utility itself: that is the -config
12081 command line option can be used to specify an
12082 alternative file.
12083
12084 *Steve Henson*
12085
12086 * Move default behaviour from OPENSSL_config(). If appname is NULL
12087 use "openssl_conf" if filename is NULL use default openssl config file.
12088
12089 *Steve Henson*
12090
12091 * Add an argument to OPENSSL_config() to allow the use of an alternative
12092 config section name. Add a new flag to tolerate a missing config file
12093 and move code to CONF_modules_load_file().
12094
12095 *Steve Henson*
12096
12097 * Support for crypto accelerator cards from Accelerated Encryption
12098 Processing, www.aep.ie. (Use engine 'aep')
12099 The support was copied from 0.9.6c [engine] and adapted/corrected
12100 to work with the new engine framework.
12101
12102 *AEP Inc. and Richard Levitte*
12103
12104 * Support for SureWare crypto accelerator cards from Baltimore
12105 Technologies. (Use engine 'sureware')
12106 The support was copied from 0.9.6c [engine] and adapted
12107 to work with the new engine framework.
12108
12109 *Richard Levitte*
12110
12111 * Have the CHIL engine fork-safe (as defined by nCipher) and actually
12112 make the newer ENGINE framework commands for the CHIL engine work.
12113
12114 *Toomas Kiisk <[email protected]> and Richard Levitte*
12115
12116 * Make it possible to produce shared libraries on ReliantUNIX.
12117
12118 *Robert Dahlem <[email protected]> via Richard Levitte*
12119
12120 * Add the configuration target debug-linux-ppro.
12121 Make 'openssl rsa' use the general key loading routines
12122 implemented in `apps.c`, and make those routines able to
12123 handle the key format FORMAT_NETSCAPE and the variant
12124 FORMAT_IISSGC.
12125
12126 *Toomas Kiisk <[email protected]> via Richard Levitte*
12127
12128 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
12129
12130 *Toomas Kiisk <[email protected]> via Richard Levitte*
12131
12132 * Add -keyform to rsautl, and document -engine.
12133
12134 *Richard Levitte, inspired by Toomas Kiisk <[email protected]>*
12135
12136 * Change BIO_new_file (crypto/bio/bss_file.c) to use new
12137 BIO_R_NO_SUCH_FILE error code rather than the generic
12138 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
12139
12140 *Ben Laurie*
12141
12142 * Add new functions
12143 ERR_peek_last_error
12144 ERR_peek_last_error_line
12145 ERR_peek_last_error_line_data.
12146 These are similar to
12147 ERR_peek_error
12148 ERR_peek_error_line
12149 ERR_peek_error_line_data,
12150 but report on the latest error recorded rather than the first one
12151 still in the error queue.
12152
12153 *Ben Laurie, Bodo Moeller*
12154
12155 * default_algorithms option in ENGINE config module. This allows things
12156 like:
12157 default_algorithms = ALL
12158 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
12159
12160 *Steve Henson*
12161
12162 * Preliminary ENGINE config module.
12163
12164 *Steve Henson*
12165
12166 * New experimental application configuration code.
12167
12168 *Steve Henson*
12169
12170 * Change the AES code to follow the same name structure as all other
12171 symmetric ciphers, and behave the same way. Move everything to
12172 the directory crypto/aes, thereby obsoleting crypto/rijndael.
12173
12174 *Stephen Sprunk <[email protected]> and Richard Levitte*
12175
12176 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
12177
12178 *Ben Laurie and Theo de Raadt*
12179
12180 * Add option to output public keys in req command.
12181
12182 *Massimiliano Pala [email protected]*
12183
12184 * Use wNAFs in EC_POINTs_mul() for improved efficiency
12185 (up to about 10% better than before for P-192 and P-224).
12186
12187 *Bodo Moeller*
12188
12189 * New functions/macros
12190
12191 SSL_CTX_set_msg_callback(ctx, cb)
12192 SSL_CTX_set_msg_callback_arg(ctx, arg)
12193 SSL_set_msg_callback(ssl, cb)
12194 SSL_set_msg_callback_arg(ssl, arg)
12195
12196 to request calling a callback function
12197
12198 void cb(int write_p, int version, int content_type,
12199 const void *buf, size_t len, SSL *ssl, void *arg)
12200
12201 whenever a protocol message has been completely received
12202 (write_p == 0) or sent (write_p == 1). Here 'version' is the
12203 protocol version according to which the SSL library interprets
12204 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
12205 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
12206 the content type as defined in the SSL 3.0/TLS 1.0 protocol
12207 specification (change_cipher_spec(20), alert(21), handshake(22)).
12208 'buf' and 'len' point to the actual message, 'ssl' to the
12209 SSL object, and 'arg' is the application-defined value set by
12210 SSL[_CTX]_set_msg_callback_arg().
12211
12212 'openssl s_client' and 'openssl s_server' have new '-msg' options
12213 to enable a callback that displays all protocol messages.
12214
12215 *Bodo Moeller*
12216
12217 * Change the shared library support so shared libraries are built as
12218 soon as the corresponding static library is finished, and thereby get
12219 openssl and the test programs linked against the shared library.
12220 This still only happens when the keyword "shard" has been given to
12221 the configuration scripts.
12222
12223 NOTE: shared library support is still an experimental thing, and
12224 backward binary compatibility is still not guaranteed.
12225
12226 *"Maciej W. Rozycki" <[email protected]> and Richard Levitte*
12227
12228 * Add support for Subject Information Access extension.
12229
12230 *Peter Sylvester <[email protected]>*
12231
12232 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
12233 additional bytes when new memory had to be allocated, not just
12234 when reusing an existing buffer.
12235
12236 *Bodo Moeller*
12237
12238 * New command line and configuration option 'utf8' for the req command.
12239 This allows field values to be specified as UTF8 strings.
12240
12241 *Steve Henson*
12242
12243 * Add -multi and -mr options to "openssl speed" - giving multiple parallel
12244 runs for the former and machine-readable output for the latter.
12245
12246 *Ben Laurie*
12247
12248 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
12249 of the e-mail address in the DN (i.e., it will go into a certificate
12250 extension only). The new configuration file option 'email_in_dn = no'
12251 has the same effect.
12252
12253 *Massimiliano Pala [email protected]*
12254
12255 * Change all functions with names starting with `des_` to be starting
12256 with `DES_` instead. Add wrappers that are compatible with libdes,
12257 but are named `_ossl_old_des_*`. Finally, add macros that map the
12258 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes
12259 compatibility is desired. If OpenSSL 0.9.6c compatibility is
12260 desired, the `des_*` symbols will be mapped to `DES_*`, with one
12261 exception.
12262
12263 Since we provide two compatibility mappings, the user needs to
12264 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
12265 compatibility is desired. The default (i.e., when that macro
12266 isn't defined) is OpenSSL 0.9.6c compatibility.
12267
12268 There are also macros that enable and disable the support of old
12269 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
12270 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
12271 are defined, the default will apply: to support the old des routines.
12272
12273 In either case, one must include openssl/des.h to get the correct
12274 definitions. Do not try to just include openssl/des_old.h, that
12275 won't work.
12276
12277 NOTE: This is a major break of an old API into a new one. Software
12278 authors are encouraged to switch to the `DES_` style functions. Some
12279 time in the future, des_old.h and the libdes compatibility functions
12280 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
12281 default), and then completely removed.
12282
12283 *Richard Levitte*
12284
12285 * Test for certificates which contain unsupported critical extensions.
12286 If such a certificate is found during a verify operation it is
12287 rejected by default: this behaviour can be overridden by either
12288 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
12289 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
12290 X509_supported_extension() has also been added which returns 1 if a
12291 particular extension is supported.
12292
12293 *Steve Henson*
12294
12295 * Modify the behaviour of EVP cipher functions in similar way to digests
12296 to retain compatibility with existing code.
12297
12298 *Steve Henson*
12299
12300 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
12301 compatibility with existing code. In particular the 'ctx' parameter does
12302 not have to be to be initialized before the call to EVP_DigestInit() and
12303 it is tidied up after a call to EVP_DigestFinal(). New function
12304 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
12305 EVP_MD_CTX_copy() changed to not require the destination to be
12306 initialized valid and new function EVP_MD_CTX_copy_ex() added which
12307 requires the destination to be valid.
12308
12309 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
12310 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
12311
12312 *Steve Henson*
12313
12314 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it
12315 so that complete 'Handshake' protocol structures are kept in memory
12316 instead of overwriting 'msg_type' and 'length' with 'body' data.
12317
12318 *Bodo Moeller*
12319
12320 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
12321
12322 *Massimo Santin via Richard Levitte*
12323
12324 * Major restructuring to the underlying ENGINE code. This includes
12325 reduction of linker bloat, separation of pure "ENGINE" manipulation
12326 (initialisation, etc) from functionality dealing with implementations
12327 of specific crypto interfaces. This change also introduces integrated
12328 support for symmetric ciphers and digest implementations - so ENGINEs
12329 can now accelerate these by providing EVP_CIPHER and EVP_MD
12330 implementations of their own. This is detailed in
12331 [crypto/engine/README.md](crypto/engine/README.md)
12332 as it couldn't be adequately described here. However, there are a few
12333 API changes worth noting - some RSA, DSA, DH, and RAND functions that
12334 were changed in the original introduction of ENGINE code have now
12335 reverted back - the hooking from this code to ENGINE is now a good
12336 deal more passive and at run-time, operations deal directly with
12337 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
12338 dereferencing through an ENGINE pointer any more. Also, the ENGINE
12339 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed -
12340 they were not being used by the framework as there is no concept of a
12341 BIGNUM_METHOD and they could not be generalised to the new
12342 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
12343 ENGINE_cpy() has been removed as it cannot be consistently defined in
12344 the new code.
12345
12346 *Geoff Thorpe*
12347
12348 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
12349
12350 *Steve Henson*
12351
12352 * Change mkdef.pl to sort symbols that get the same entry number,
12353 and make sure the automatically generated functions `ERR_load_*`
12354 become part of libeay.num as well.
12355
12356 *Richard Levitte*
12357
12358 * New function SSL_renegotiate_pending(). This returns true once
12359 renegotiation has been requested (either SSL_renegotiate() call
12360 or HelloRequest/ClientHello received from the peer) and becomes
12361 false once a handshake has been completed.
12362 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
12363 sends a HelloRequest, but does not ensure that a handshake takes
12364 place. SSL_renegotiate_pending() is useful for checking if the
12365 client has followed the request.)
12366
12367 *Bodo Moeller*
12368
12369 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
12370 By default, clients may request session resumption even during
12371 renegotiation (if session ID contexts permit); with this option,
12372 session resumption is possible only in the first handshake.
12373
12374 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
12375 more bits available for options that should not be part of
12376 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
12377
12378 *Bodo Moeller*
12379
12380 * Add some demos for certificate and certificate request creation.
12381
12382 *Steve Henson*
12383
12384 * Make maximum certificate chain size accepted from the peer application
12385 settable (`SSL*_get/set_max_cert_list()`), as proposed by
12386 "Douglas E. Engert" <[email protected]>.
12387
12388 *Lutz Jaenicke*
12389
12390 * Add support for shared libraries for Unixware-7
12391 (Boyd Lynn Gerber <[email protected]>).
12392
12393 *Lutz Jaenicke*
12394
12395 * Add a "destroy" handler to ENGINEs that allows structural cleanup to
12396 be done prior to destruction. Use this to unload error strings from
12397 ENGINEs that load their own error strings. NB: This adds two new API
12398 functions to "get" and "set" this destroy handler in an ENGINE.
12399
12400 *Geoff Thorpe*
12401
12402 * Alter all existing ENGINE implementations (except "openssl" and
12403 "openbsd") to dynamically instantiate their own error strings. This
12404 makes them more flexible to be built both as statically-linked ENGINEs
12405 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
12406 Also, add stub code to each that makes building them as self-contained
12407 shared-libraries easier (see [README-Engine.md](README-Engine.md)).
12408
12409 *Geoff Thorpe*
12410
12411 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
12412 implementations into applications that are completely implemented in
12413 self-contained shared-libraries. The "dynamic" ENGINE exposes control
12414 commands that can be used to configure what shared-library to load and
12415 to control aspects of the way it is handled. Also, made an update to
12416 the [README-Engine.md](README-Engine.md) file
12417 that brings its information up-to-date and
12418 provides some information and instructions on the "dynamic" ENGINE
12419 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
12420
12421 *Geoff Thorpe*
12422
12423 * Make it possible to unload ranges of ERR strings with a new
12424 "ERR_unload_strings" function.
12425
12426 *Geoff Thorpe*
12427
12428 * Add a copy() function to EVP_MD.
12429
12430 *Ben Laurie*
12431
12432 * Make EVP_MD routines take a context pointer instead of just the
12433 md_data void pointer.
12434
12435 *Ben Laurie*
12436
12437 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
12438 that the digest can only process a single chunk of data
12439 (typically because it is provided by a piece of
12440 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
12441 is only going to provide a single chunk of data, and hence the
12442 framework needn't accumulate the data for oneshot drivers.
12443
12444 *Ben Laurie*
12445
12446 * As with "ERR", make it possible to replace the underlying "ex_data"
12447 functions. This change also alters the storage and management of global
12448 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
12449 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
12450 index counters. The API functions that use this state have been changed
12451 to take a "class_index" rather than pointers to the class's local STACK
12452 and counter, and there is now an API function to dynamically create new
12453 classes. This centralisation allows us to (a) plug a lot of the
12454 thread-safety problems that existed, and (b) makes it possible to clean
12455 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
12456 such data would previously have always leaked in application code and
12457 workarounds were in place to make the memory debugging turn a blind eye
12458 to it. Application code that doesn't use this new function will still
12459 leak as before, but their memory debugging output will announce it now
12460 rather than letting it slide.
12461
12462 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
12463 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
12464 has a return value to indicate success or failure.
12465
12466 *Geoff Thorpe*
12467
12468 * Make it possible to replace the underlying "ERR" functions such that the
12469 global state (2 LHASH tables and 2 locks) is only used by the "default"
12470 implementation. This change also adds two functions to "get" and "set"
12471 the implementation prior to it being automatically set the first time
12472 any other ERR function takes place. Ie. an application can call "get",
12473 pass the return value to a module it has just loaded, and that module
12474 can call its own "set" function using that value. This means the
12475 module's "ERR" operations will use (and modify) the error state in the
12476 application and not in its own statically linked copy of OpenSSL code.
12477
12478 *Geoff Thorpe*
12479
12480 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment
12481 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
12482 the operation, and provides a more encapsulated way for external code
12483 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
12484 to use these functions rather than manually incrementing the counts.
12485
12486 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
12487
12488 *Geoff Thorpe*
12489
12490 * Add EVP test program.
12491
12492 *Ben Laurie*
12493
12494 * Add symmetric cipher support to ENGINE. Expect the API to change!
12495
12496 *Ben Laurie*
12497
12498 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
12499 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
12500 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
12501 These allow a CRL to be built without having to access X509_CRL fields
12502 directly. Modify 'ca' application to use new functions.
12503
12504 *Steve Henson*
12505
12506 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
12507 bug workarounds. Rollback attack detection is a security feature.
12508 The problem will only arise on OpenSSL servers when TLSv1 is not
12509 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
12510 Software authors not wanting to support TLSv1 will have special reasons
12511 for their choice and can explicitly enable this option.
12512
12513 *Bodo Moeller, Lutz Jaenicke*
12514
12515 * Rationalise EVP so it can be extended: don't include a union of
12516 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
12517 (similar to those existing for EVP_CIPHER_CTX).
12518 Usage example:
12519
12520 EVP_MD_CTX md;
12521
12522 EVP_MD_CTX_init(&md); /* new function call */
12523 EVP_DigestInit(&md, EVP_sha1());
12524 EVP_DigestUpdate(&md, in, len);
12525 EVP_DigestFinal(&md, out, NULL);
12526 EVP_MD_CTX_cleanup(&md); /* new function call */
12527
12528 *Ben Laurie*
12529
12530 * Make DES key schedule conform to the usual scheme, as well as
12531 correcting its structure. This means that calls to DES functions
12532 now have to pass a pointer to a des_key_schedule instead of a
12533 plain des_key_schedule (which was actually always a pointer
12534 anyway): E.g.,
12535
12536 des_key_schedule ks;
12537
12538 des_set_key_checked(..., &ks);
12539 des_ncbc_encrypt(..., &ks, ...);
12540
12541 (Note that a later change renames 'des_...' into 'DES_...'.)
12542
12543 *Ben Laurie*
12544
12545 * Initial reduction of linker bloat: the use of some functions, such as
12546 PEM causes large amounts of unused functions to be linked in due to
12547 poor organisation. For example pem_all.c contains every PEM function
12548 which has a knock on effect of linking in large amounts of (unused)
12549 ASN1 code. Grouping together similar functions and splitting unrelated
12550 functions prevents this.
12551
12552 *Steve Henson*
12553
12554 * Cleanup of EVP macros.
12555
12556 *Ben Laurie*
12557
12558 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the
12559 correct `_ecb suffix`.
12560
12561 *Ben Laurie*
12562
12563 * Add initial OCSP responder support to ocsp application. The
12564 revocation information is handled using the text based index
12565 use by the ca application. The responder can either handle
12566 requests generated internally, supplied in files (for example
12567 via a CGI script) or using an internal minimal server.
12568
12569 *Steve Henson*
12570
12571 * Add configuration choices to get zlib compression for TLS.
12572
12573 *Richard Levitte*
12574
12575 * Changes to Kerberos SSL for RFC 2712 compliance:
12576 1. Implemented real KerberosWrapper, instead of just using
12577 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <[email protected]>]
12578 2. Implemented optional authenticator field of KerberosWrapper.
12579
12580 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
12581 and authenticator structs; see crypto/krb5/.
12582
12583 Generalized Kerberos calls to support multiple Kerberos libraries.
12584 *Vern Staats <[email protected]>, Jeffrey Altman <[email protected]>
12585 via Richard Levitte*
12586
12587 * Cause 'openssl speed' to use fully hard-coded DSA keys as it
12588 already does with RSA. testdsa.h now has 'priv_key/pub_key'
12589 values for each of the key sizes rather than having just
12590 parameters (and 'speed' generating keys each time).
12591
12592 *Geoff Thorpe*
12593
12594 * Speed up EVP routines.
12595 Before:
12596crypt
12597pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
12598s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
12599s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
12600s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
12601crypt
12602s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
12603s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
12604s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
12605 After:
12606crypt
12607s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
12608crypt
12609s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
12610
12611 *Ben Laurie*
12612
12613 * Added the OS2-EMX target.
12614
12615 *"Brian Havard" <[email protected]> and Richard Levitte*
12616
12617 * Rewrite commands to use `NCONF` routines instead of the old `CONF`.
12618 New functions to support `NCONF` routines in extension code.
12619 New function `CONF_set_nconf()`
12620 to allow functions which take an `NCONF` to also handle the old `LHASH`
12621 structure: this means that the old `CONF` compatible routines can be
12622 retained (in particular w.rt. extensions) without having to duplicate the
12623 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack.
12624
12625 *Steve Henson*
12626
12627 * Enhance the general user interface with mechanisms for inner control
12628 and with possibilities to have yes/no kind of prompts.
12629
12630 *Richard Levitte*
12631
12632 * Change all calls to low-level digest routines in the library and
12633 applications to use EVP. Add missing calls to HMAC_cleanup() and
12634 don't assume HMAC_CTX can be copied using memcpy().
12635
12636 *Verdon Walker <[email protected]>, Steve Henson*
12637
12638 * Add the possibility to control engines through control names but with
12639 arbitrary arguments instead of just a string.
12640 Change the key loaders to take a UI_METHOD instead of a callback
12641 function pointer. NOTE: this breaks binary compatibility with earlier
12642 versions of OpenSSL [engine].
12643 Adapt the nCipher code for these new conditions and add a card insertion
12644 callback.
12645
12646 *Richard Levitte*
12647
12648 * Enhance the general user interface with mechanisms to better support
12649 dialog box interfaces, application-defined prompts, the possibility
12650 to use defaults (for example default passwords from somewhere else)
12651 and interrupts/cancellations.
12652
12653 *Richard Levitte*
12654
12655 * Tidy up PKCS#12 attribute handling. Add support for the CSP name
12656 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
12657
12658 *Steve Henson*
12659
12660 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
12661 tidy up some unnecessarily weird code in 'sk_new()').
12662
12663 *Geoff, reported by Diego Tartara <[email protected]>*
12664
12665 * Change the key loading routines for ENGINEs to use the same kind
12666 callback (pem_password_cb) as all other routines that need this
12667 kind of callback.
12668
12669 *Richard Levitte*
12670
12671 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
12672 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
12673 than this minimum value is recommended.
12674
12675 *Lutz Jaenicke*
12676
12677 * New random seeder for OpenVMS, using the system process statistics
12678 that are easily reachable.
12679
12680 *Richard Levitte*
12681
12682 * Windows apparently can't transparently handle global
12683 variables defined in DLLs. Initialisations such as:
12684
12685 const ASN1_ITEM *it = &ASN1_INTEGER_it;
12686
12687 won't compile. This is used by the any applications that need to
12688 declare their own ASN1 modules. This was fixed by adding the option
12689 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
12690 needed for static libraries under Win32.
12691
12692 *Steve Henson*
12693
12694 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
12695 setting of purpose and trust fields. New X509_STORE trust and
12696 purpose functions and tidy up setting in other SSL functions.
12697
12698 *Steve Henson*
12699
12700 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
12701 structure. These are inherited by X509_STORE_CTX when it is
12702 initialised. This allows various defaults to be set in the
12703 X509_STORE structure (such as flags for CRL checking and custom
12704 purpose or trust settings) for functions which only use X509_STORE_CTX
12705 internally such as S/MIME.
12706
12707 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
12708 trust settings if they are not set in X509_STORE. This allows X509_STORE
12709 purposes and trust (in S/MIME for example) to override any set by default.
12710
12711 Add command line options for CRL checking to smime, s_client and s_server
12712 applications.
12713
12714 *Steve Henson*
12715
12716 * Initial CRL based revocation checking. If the CRL checking flag(s)
12717 are set then the CRL is looked up in the X509_STORE structure and
12718 its validity and signature checked, then if the certificate is found
12719 in the CRL the verify fails with a revoked error.
12720
12721 Various new CRL related callbacks added to X509_STORE_CTX structure.
12722
12723 Command line options added to 'verify' application to support this.
12724
12725 This needs some additional work, such as being able to handle multiple
12726 CRLs with different times, extension based lookup (rather than just
12727 by subject name) and ultimately more complete V2 CRL extension
12728 handling.
12729
12730 *Steve Henson*
12731
12732 * Add a general user interface API (crypto/ui/). This is designed
12733 to replace things like des_read_password and friends (backward
12734 compatibility functions using this new API are provided).
12735 The purpose is to remove prompting functions from the DES code
12736 section as well as provide for prompting through dialog boxes in
12737 a window system and the like.
12738
12739 *Richard Levitte*
12740
12741 * Add "ex_data" support to ENGINE so implementations can add state at a
12742 per-structure level rather than having to store it globally.
12743
12744 *Geoff*
12745
12746 * Make it possible for ENGINE structures to be copied when retrieved by
12747 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
12748 This causes the "original" ENGINE structure to act like a template,
12749 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
12750 operational state can be localised to each ENGINE structure, despite the
12751 fact they all share the same "methods". New ENGINE structures returned in
12752 this case have no functional references and the return value is the single
12753 structural reference. This matches the single structural reference returned
12754 by ENGINE_by_id() normally, when it is incremented on the pre-existing
12755 ENGINE structure.
12756
12757 *Geoff*
12758
12759 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
12760 needs to match any other type at all we need to manually clear the
12761 tag cache.
12762
12763 *Steve Henson*
12764
12765 * Changes to the "openssl engine" utility to include;
12766 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
12767 about an ENGINE's available control commands.
12768 - executing control commands from command line arguments using the
12769 '-pre' and '-post' switches. '-post' is only used if '-t' is
12770 specified and the ENGINE is successfully initialised. The syntax for
12771 the individual commands are colon-separated, for example;
12772 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
12773
12774 *Geoff*
12775
12776 * New dynamic control command support for ENGINEs. ENGINEs can now
12777 declare their own commands (numbers), names (strings), descriptions,
12778 and input types for run-time discovery by calling applications. A
12779 subset of these commands are implicitly classed as "executable"
12780 depending on their input type, and only these can be invoked through
12781 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
12782 can be based on user input, config files, etc). The distinction is
12783 that "executable" commands cannot return anything other than a boolean
12784 result and can only support numeric or string input, whereas some
12785 discoverable commands may only be for direct use through
12786 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
12787 pointers, or other custom uses. The "executable" commands are to
12788 support parameterisations of ENGINE behaviour that can be
12789 unambiguously defined by ENGINEs and used consistently across any
12790 OpenSSL-based application. Commands have been added to all the
12791 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
12792 control over shared-library paths without source code alterations.
12793
12794 *Geoff*
12795
12796 * Changed all ENGINE implementations to dynamically allocate their
12797 ENGINEs rather than declaring them statically. Apart from this being
12798 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
12799 this also allows the implementations to compile without using the
12800 internal engine_int.h header.
12801
12802 *Geoff*
12803
12804 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
12805 'const' value. Any code that should be able to modify a RAND_METHOD
12806 should already have non-const pointers to it (ie. they should only
12807 modify their own ones).
12808
12809 *Geoff*
12810
12811 * Made a variety of little tweaks to the ENGINE code.
12812 - "atalla" and "ubsec" string definitions were moved from header files
12813 to C code. "nuron" string definitions were placed in variables
12814 rather than hard-coded - allowing parameterisation of these values
12815 later on via ctrl() commands.
12816 - Removed unused "#if 0"'d code.
12817 - Fixed engine list iteration code so it uses ENGINE_free() to release
12818 structural references.
12819 - Constified the RAND_METHOD element of ENGINE structures.
12820 - Constified various get/set functions as appropriate and added
12821 missing functions (including a catch-all ENGINE_cpy that duplicates
12822 all ENGINE values onto a new ENGINE except reference counts/state).
12823 - Removed NULL parameter checks in get/set functions. Setting a method
12824 or function to NULL is a way of cancelling out a previously set
12825 value. Passing a NULL ENGINE parameter is just plain stupid anyway
12826 and doesn't justify the extra error symbols and code.
12827 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
12828 flags from engine_int.h to engine.h.
12829 - Changed prototypes for ENGINE handler functions (init(), finish(),
12830 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
12831
12832 *Geoff*
12833
12834 * Implement binary inversion algorithm for BN_mod_inverse in addition
12835 to the algorithm using long division. The binary algorithm can be
12836 used only if the modulus is odd. On 32-bit systems, it is faster
12837 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
12838 roughly 5-15% for 256-bit moduli), so we use it only for moduli
12839 up to 450 bits. In 64-bit environments, the binary algorithm
12840 appears to be advantageous for much longer moduli; here we use it
12841 for moduli up to 2048 bits.
12842
12843 *Bodo Moeller*
12844
12845 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
12846 could not support the combine flag in choice fields.
12847
12848 *Steve Henson*
12849
12850 * Add a 'copy_extensions' option to the 'ca' utility. This copies
12851 extensions from a certificate request to the certificate.
12852
12853 *Steve Henson*
12854
12855 * Allow multiple 'certopt' and 'nameopt' options to be separated
12856 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
12857 file: this allows the display of the certificate about to be
12858 signed to be customised, to allow certain fields to be included
12859 or excluded and extension details. The old system didn't display
12860 multicharacter strings properly, omitted fields not in the policy
12861 and couldn't display additional details such as extensions.
12862
12863 *Steve Henson*
12864
12865 * Function EC_POINTs_mul for multiple scalar multiplication
12866 of an arbitrary number of elliptic curve points
12867 \sum scalars[i]*points[i],
12868 optionally including the generator defined for the EC_GROUP:
12869 scalar*generator + \sum scalars[i]*points[i].
12870
12871 EC_POINT_mul is a simple wrapper function for the typical case
12872 that the point list has just one item (besides the optional
12873 generator).
12874
12875 *Bodo Moeller*
12876
12877 * First EC_METHODs for curves over GF(p):
12878
12879 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
12880 operations and provides various method functions that can also
12881 operate with faster implementations of modular arithmetic.
12882
12883 EC_GFp_mont_method() reuses most functions that are part of
12884 EC_GFp_simple_method, but uses Montgomery arithmetic.
12885
12886 *Bodo Moeller; point addition and point doubling
12887 implementation directly derived from source code provided by
12888 Lenka Fibikova <[email protected]>*
12889
12890 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
12891 crypto/ec/ec_lib.c):
12892
12893 Curves are EC_GROUP objects (with an optional group generator)
12894 based on EC_METHODs that are built into the library.
12895
12896 Points are EC_POINT objects based on EC_GROUP objects.
12897
12898 Most of the framework would be able to handle curves over arbitrary
12899 finite fields, but as there are no obvious types for fields other
12900 than GF(p), some functions are limited to that for now.
12901
12902 *Bodo Moeller*
12903
12904 * Add the -HTTP option to s_server. It is similar to -WWW, but requires
12905 that the file contains a complete HTTP response.
12906
12907 *Richard Levitte*
12908
12909 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
12910 change the def and num file printf format specifier from "%-40sXXX"
12911 to "%-39s XXX". The latter will always guarantee a space after the
12912 field while the former will cause them to run together if the field
12913 is 40 of more characters long.
12914
12915 *Steve Henson*
12916
12917 * Constify the cipher and digest 'method' functions and structures
12918 and modify related functions to take constant EVP_MD and EVP_CIPHER
12919 pointers.
12920
12921 *Steve Henson*
12922
12923 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them
12924 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
12925
12926 *Bodo Moeller*
12927
12928 * Modify `EVP_Digest*()` routines so they now return values. Although the
12929 internal software routines can never fail additional hardware versions
12930 might.
12931
12932 *Steve Henson*
12933
12934 * Clean up crypto/err/err.h and change some error codes to avoid conflicts:
12935
12936 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
12937 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
12938
12939 ASN1 error codes
12940 ERR_R_NESTED_ASN1_ERROR
12941 ...
12942 ERR_R_MISSING_ASN1_EOS
12943 were 4 .. 9, conflicting with
12944 ERR_LIB_RSA (= ERR_R_RSA_LIB)
12945 ...
12946 ERR_LIB_PEM (= ERR_R_PEM_LIB).
12947 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
12948
12949 Add new error code 'ERR_R_INTERNAL_ERROR'.
12950
12951 *Bodo Moeller*
12952
12953 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
12954 suffices.
12955
12956 *Bodo Moeller*
12957
12958 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This
12959 sets the subject name for a new request or supersedes the
12960 subject name in a given request. Formats that can be parsed are
12961 'CN=Some Name, OU=myOU, C=IT'
12962 and
12963 'CN=Some Name/OU=myOU/C=IT'.
12964
12965 Add options '-batch' and '-verbose' to 'openssl req'.
12966
12967 *Massimiliano Pala <[email protected]>*
12968
12969 * Introduce the possibility to access global variables through
12970 functions on platform were that's the best way to handle exporting
12971 global variables in shared libraries. To enable this functionality,
12972 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
12973 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
12974 is normally done by Configure or something similar).
12975
12976 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
12977 in the source file (foo.c) like this:
12978
12979 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
12980 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
12981
12982 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
12983 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
12984
12985 OPENSSL_DECLARE_GLOBAL(int,foo);
12986 #define foo OPENSSL_GLOBAL_REF(foo)
12987 OPENSSL_DECLARE_GLOBAL(double,bar);
12988 #define bar OPENSSL_GLOBAL_REF(bar)
12989
12990 The #defines are very important, and therefore so is including the
12991 header file everywhere where the defined globals are used.
12992
12993 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
12994 of ASN.1 items, but that structure is a bit different.
12995
12996 The largest change is in util/mkdef.pl which has been enhanced with
12997 better and easier to understand logic to choose which symbols should
12998 go into the Windows .def files as well as a number of fixes and code
12999 cleanup (among others, algorithm keywords are now sorted
13000 lexicographically to avoid constant rewrites).
13001
13002 *Richard Levitte*
13003
13004 * In BN_div() keep a copy of the sign of 'num' before writing the
13005 result to 'rm' because if rm==num the value will be overwritten
13006 and produce the wrong result if 'num' is negative: this caused
13007 problems with BN_mod() and BN_nnmod().
13008
13009 *Steve Henson*
13010
13011 * Function OCSP_request_verify(). This checks the signature on an
13012 OCSP request and verifies the signer certificate. The signer
13013 certificate is just checked for a generic purpose and OCSP request
13014 trust settings.
13015
13016 *Steve Henson*
13017
13018 * Add OCSP_check_validity() function to check the validity of OCSP
13019 responses. OCSP responses are prepared in real time and may only
13020 be a few seconds old. Simply checking that the current time lies
13021 between thisUpdate and nextUpdate max reject otherwise valid responses
13022 caused by either OCSP responder or client clock inaccuracy. Instead
13023 we allow thisUpdate and nextUpdate to fall within a certain period of
13024 the current time. The age of the response can also optionally be
13025 checked. Two new options -validity_period and -status_age added to
13026 ocsp utility.
13027
13028 *Steve Henson*
13029
13030 * If signature or public key algorithm is unrecognized print out its
13031 OID rather that just UNKNOWN.
13032
13033 *Steve Henson*
13034
13035 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
13036 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
13037 ID to be generated from the issuer certificate alone which can then be
13038 passed to OCSP_id_issuer_cmp().
13039
13040 *Steve Henson*
13041
13042 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
13043 ASN1 modules to export functions returning ASN1_ITEM pointers
13044 instead of the ASN1_ITEM structures themselves. This adds several
13045 new macros which allow the underlying ASN1 function/structure to
13046 be accessed transparently. As a result code should not use ASN1_ITEM
13047 references directly (such as &X509_it) but instead use the relevant
13048 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
13049 use of the new ASN1 code on platforms where exporting structures
13050 is problematical (for example in shared libraries) but exporting
13051 functions returning pointers to structures is not.
13052
13053 *Steve Henson*
13054
13055 * Add support for overriding the generation of SSL/TLS session IDs.
13056 These callbacks can be registered either in an SSL_CTX or per SSL.
13057 The purpose of this is to allow applications to control, if they wish,
13058 the arbitrary values chosen for use as session IDs, particularly as it
13059 can be useful for session caching in multiple-server environments. A
13060 command-line switch for testing this (and any client code that wishes
13061 to use such a feature) has been added to "s_server".
13062
13063 *Geoff Thorpe, Lutz Jaenicke*
13064
13065 * Modify mkdef.pl to recognise and parse preprocessor conditionals
13066 of the form `#if defined(...) || defined(...) || ...` and
13067 `#if !defined(...) && !defined(...) && ...`. This also avoids
13068 the growing number of special cases it was previously handling.
13069
13070 *Richard Levitte*
13071
13072 * Make all configuration macros available for application by making
13073 sure they are available in opensslconf.h, by giving them names starting
13074 with `OPENSSL_` to avoid conflicts with other packages and by making
13075 sure e_os2.h will cover all platform-specific cases together with
13076 opensslconf.h.
13077 Additionally, it is now possible to define configuration/platform-
13078 specific names (called "system identities"). In the C code, these
13079 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another
13080 macro with the name beginning with `OPENSSL_SYS_`, which is determined
13081 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on
13082 what is available.
13083
13084 *Richard Levitte*
13085
13086 * New option -set_serial to 'req' and 'x509' this allows the serial
13087 number to use to be specified on the command line. Previously self
13088 signed certificates were hard coded with serial number 0 and the
13089 CA options of 'x509' had to use a serial number in a file which was
13090 auto incremented.
13091
13092 *Steve Henson*
13093
13094 * New options to 'ca' utility to support V2 CRL entry extensions.
13095 Currently CRL reason, invalidity date and hold instruction are
13096 supported. Add new CRL extensions to V3 code and some new objects.
13097
13098 *Steve Henson*
13099
13100 * New function EVP_CIPHER_CTX_set_padding() this is used to
13101 disable standard block padding (aka PKCS#5 padding) in the EVP
13102 API, which was previously mandatory. This means that the data is
13103 not padded in any way and so the total length much be a multiple
13104 of the block size, otherwise an error occurs.
13105
13106 *Steve Henson*
13107
13108 * Initial (incomplete) OCSP SSL support.
13109
13110 *Steve Henson*
13111
13112 * New function OCSP_parse_url(). This splits up a URL into its host,
13113 port and path components: primarily to parse OCSP URLs. New -url
13114 option to ocsp utility.
13115
13116 *Steve Henson*
13117
13118 * New nonce behavior. The return value of OCSP_check_nonce() now
13119 reflects the various checks performed. Applications can decide
13120 whether to tolerate certain situations such as an absent nonce
13121 in a response when one was present in a request: the ocsp application
13122 just prints out a warning. New function OCSP_add1_basic_nonce()
13123 this is to allow responders to include a nonce in a response even if
13124 the request is nonce-less.
13125
13126 *Steve Henson*
13127
13128 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are
13129 skipped when using openssl x509 multiple times on a single input file,
13130 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`.
13131
13132 *Bodo Moeller*
13133
13134 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
13135 set string type: to handle setting ASN1_TIME structures. Fix ca
13136 utility to correctly initialize revocation date of CRLs.
13137
13138 *Steve Henson*
13139
13140 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
13141 the clients preferred ciphersuites and rather use its own preferences.
13142 Should help to work around M$ SGC (Server Gated Cryptography) bug in
13143 Internet Explorer by ensuring unchanged hash method during stepup.
13144 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
13145
13146 *Lutz Jaenicke*
13147
13148 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
13149 to aes and add a new 'exist' option to print out symbols that don't
13150 appear to exist.
13151
13152 *Steve Henson*
13153
13154 * Additional options to ocsp utility to allow flags to be set and
13155 additional certificates supplied.
13156
13157 *Steve Henson*
13158
13159 * Add the option -VAfile to 'openssl ocsp', so the user can give the
13160 OCSP client a number of certificate to only verify the response
13161 signature against.
13162
13163 *Richard Levitte*
13164
13165 * Update Rijndael code to version 3.0 and change EVP AES ciphers to
13166 handle the new API. Currently only ECB, CBC modes supported. Add new
13167 AES OIDs.
13168
13169 Add TLS AES ciphersuites as described in RFC3268, "Advanced
13170 Encryption Standard (AES) Ciphersuites for Transport Layer
13171 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
13172 not enabled by default and were not part of the "ALL" ciphersuite
13173 alias because they were not yet official; they could be
13174 explicitly requested by specifying the "AESdraft" ciphersuite
13175 group alias. In the final release of OpenSSL 0.9.7, the group
13176 alias is called "AES" and is part of "ALL".)
13177
13178 *Ben Laurie, Steve Henson, Bodo Moeller*
13179
13180 * New function OCSP_copy_nonce() to copy nonce value (if present) from
13181 request to response.
13182
13183 *Steve Henson*
13184
13185 * Functions for OCSP responders. OCSP_request_onereq_count(),
13186 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
13187 extract information from a certificate request. OCSP_response_create()
13188 creates a response and optionally adds a basic response structure.
13189 OCSP_basic_add1_status() adds a complete single response to a basic
13190 response and returns the OCSP_SINGLERESP structure just added (to allow
13191 extensions to be included for example). OCSP_basic_add1_cert() adds a
13192 certificate to a basic response and OCSP_basic_sign() signs a basic
13193 response with various flags. New helper functions ASN1_TIME_check()
13194 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
13195 (converts ASN1_TIME to GeneralizedTime).
13196
13197 *Steve Henson*
13198
13199 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
13200 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
13201 structure from a certificate. X509_pubkey_digest() digests the public_key
13202 contents: this is used in various key identifiers.
13203
13204 *Steve Henson*
13205
13206 * Make sk_sort() tolerate a NULL argument.
13207
13208 *Steve Henson reported by Massimiliano Pala <[email protected]>*
13209
13210 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
13211 passed by the function are trusted implicitly. If any of them signed the
13212 response then it is assumed to be valid and is not verified.
13213
13214 *Steve Henson*
13215
13216 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
13217 to data. This was previously part of the PKCS7 ASN1 code. This
13218 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
13219 *Steve Henson, reported by Kenneth R. Robinette
13220 <[email protected]>*
13221
13222 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
13223 routines: without these tracing memory leaks is very painful.
13224 Fix leaks in PKCS12 and PKCS7 routines.
13225
13226 *Steve Henson*
13227
13228 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
13229 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
13230 effectively meant GeneralizedTime would never be used. Now it
13231 is initialised to -1 but X509_time_adj() now has to check the value
13232 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
13233 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
13234 *Steve Henson, reported by Kenneth R. Robinette
13235 <[email protected]>*
13236
13237 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
13238 result in a zero length in the ASN1_INTEGER structure which was
13239 not consistent with the structure when d2i_ASN1_INTEGER() was used
13240 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
13241 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
13242 where it did not print out a minus for negative ASN1_INTEGER.
13243
13244 *Steve Henson*
13245
13246 * Add summary printout to ocsp utility. The various functions which
13247 convert status values to strings have been renamed to:
13248 OCSP_response_status_str(), OCSP_cert_status_str() and
13249 OCSP_crl_reason_str() and are no longer static. New options
13250 to verify nonce values and to disable verification. OCSP response
13251 printout format cleaned up.
13252
13253 *Steve Henson*
13254
13255 * Add additional OCSP certificate checks. These are those specified
13256 in RFC2560. This consists of two separate checks: the CA of the
13257 certificate being checked must either be the OCSP signer certificate
13258 or the issuer of the OCSP signer certificate. In the latter case the
13259 OCSP signer certificate must contain the OCSP signing extended key
13260 usage. This check is performed by attempting to match the OCSP
13261 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
13262 in the OCSP_CERTID structures of the response.
13263
13264 *Steve Henson*
13265
13266 * Initial OCSP certificate verification added to OCSP_basic_verify()
13267 and related routines. This uses the standard OpenSSL certificate
13268 verify routines to perform initial checks (just CA validity) and
13269 to obtain the certificate chain. Then additional checks will be
13270 performed on the chain. Currently the root CA is checked to see
13271 if it is explicitly trusted for OCSP signing. This is used to set
13272 a root CA as a global signing root: that is any certificate that
13273 chains to that CA is an acceptable OCSP signing certificate.
13274
13275 *Steve Henson*
13276
13277 * New '-extfile ...' option to 'openssl ca' for reading X.509v3
13278 extensions from a separate configuration file.
13279 As when reading extensions from the main configuration file,
13280 the '-extensions ...' option may be used for specifying the
13281 section to use.
13282
13283 *Massimiliano Pala <[email protected]>*
13284
13285 * New OCSP utility. Allows OCSP requests to be generated or
13286 read. The request can be sent to a responder and the output
13287 parsed, outputted or printed in text form. Not complete yet:
13288 still needs to check the OCSP response validity.
13289
13290 *Steve Henson*
13291
13292 * New subcommands for 'openssl ca':
13293 `openssl ca -status <serial>` prints the status of the cert with
13294 the given serial number (according to the index file).
13295 `openssl ca -updatedb` updates the expiry status of certificates
13296 in the index file.
13297
13298 *Massimiliano Pala <[email protected]>*
13299
13300 * New '-newreq-nodes' command option to CA.pl. This is like
13301 '-newreq', but calls 'openssl req' with the '-nodes' option
13302 so that the resulting key is not encrypted.
13303
13304 *Damien Miller <[email protected]>*
13305
13306 * New configuration for the GNU Hurd.
13307
13308 *Jonathan Bartlett <[email protected]> via Richard Levitte*
13309
13310 * Initial code to implement OCSP basic response verify. This
13311 is currently incomplete. Currently just finds the signer's
13312 certificate and verifies the signature on the response.
13313
13314 *Steve Henson*
13315
13316 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in
13317 value of OPENSSLDIR. This is available via the new '-d' option
13318 to 'openssl version', and is also included in 'openssl version -a'.
13319
13320 *Bodo Moeller*
13321
13322 * Allowing defining memory allocation callbacks that will be given
13323 file name and line number information in additional arguments
13324 (a `const char*` and an int). The basic functionality remains, as
13325 well as the original possibility to just replace malloc(),
13326 realloc() and free() by functions that do not know about these
13327 additional arguments. To register and find out the current
13328 settings for extended allocation functions, the following
13329 functions are provided:
13330
13331 CRYPTO_set_mem_ex_functions
13332 CRYPTO_set_locked_mem_ex_functions
13333 CRYPTO_get_mem_ex_functions
13334 CRYPTO_get_locked_mem_ex_functions
13335
13336 These work the same way as CRYPTO_set_mem_functions and friends.
13337 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an
13338 extended allocation function is enabled.
13339 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where
13340 a conventional allocation function is enabled.
13341
13342 *Richard Levitte, Bodo Moeller*
13343
13344 * Finish off removing the remaining LHASH function pointer casts.
13345 There should no longer be any prototype-casting required when using
13346 the LHASH abstraction, and any casts that remain are "bugs". See
13347 the callback types and macros at the head of lhash.h for details
13348 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
13349
13350 *Geoff Thorpe*
13351
13352 * Add automatic query of EGD sockets in RAND_poll() for the unix variant.
13353 If /dev/[u]random devices are not available or do not return enough
13354 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
13355 be queried.
13356 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
13357 /etc/entropy will be queried once each in this sequence, querying stops
13358 when enough entropy was collected without querying more sockets.
13359
13360 *Lutz Jaenicke*
13361
13362 * Change the Unix RAND_poll() variant to be able to poll several
13363 random devices, as specified by DEVRANDOM, until a sufficient amount
13364 of data has been collected. We spend at most 10 ms on each file
13365 (select timeout) and read in non-blocking mode. DEVRANDOM now
13366 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
13367 (previously it was just the string "/dev/urandom"), so on typical
13368 platforms the 10 ms delay will never occur.
13369 Also separate out the Unix variant to its own file, rand_unix.c.
13370 For VMS, there's a currently-empty rand_vms.c.
13371
13372 *Richard Levitte*
13373
13374 * Move OCSP client related routines to ocsp_cl.c. These
13375 provide utility functions which an application needing
13376 to issue a request to an OCSP responder and analyse the
13377 response will typically need: as opposed to those which an
13378 OCSP responder itself would need which will be added later.
13379
13380 OCSP_request_sign() signs an OCSP request with an API similar
13381 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
13382 response. OCSP_response_get1_basic() extracts basic response
13383 from response. OCSP_resp_find_status(): finds and extracts status
13384 information from an OCSP_CERTID structure (which will be created
13385 when the request structure is built). These are built from lower
13386 level functions which work on OCSP_SINGLERESP structures but
13387 won't normally be used unless the application wishes to examine
13388 extensions in the OCSP response for example.
13389
13390 Replace nonce routines with a pair of functions.
13391 OCSP_request_add1_nonce() adds a nonce value and optionally
13392 generates a random value. OCSP_check_nonce() checks the
13393 validity of the nonce in an OCSP response.
13394
13395 *Steve Henson*
13396
13397 * Change function OCSP_request_add() to OCSP_request_add0_id().
13398 This doesn't copy the supplied OCSP_CERTID and avoids the
13399 need to free up the newly created id. Change return type
13400 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
13401 This can then be used to add extensions to the request.
13402 Deleted OCSP_request_new(), since most of its functionality
13403 is now in OCSP_REQUEST_new() (and the case insensitive name
13404 clash) apart from the ability to set the request name which
13405 will be added elsewhere.
13406
13407 *Steve Henson*
13408
13409 * Update OCSP API. Remove obsolete extensions argument from
13410 various functions. Extensions are now handled using the new
13411 OCSP extension code. New simple OCSP HTTP function which
13412 can be used to send requests and parse the response.
13413
13414 *Steve Henson*
13415
13416 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
13417 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
13418 uses the special reorder version of SET OF to sort the attributes
13419 and reorder them to match the encoded order. This resolves a long
13420 standing problem: a verify on a PKCS7 structure just after signing
13421 it used to fail because the attribute order did not match the
13422 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
13423 it uses the received order. This is necessary to tolerate some broken
13424 software that does not order SET OF. This is handled by encoding
13425 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
13426 to produce the required SET OF.
13427
13428 *Steve Henson*
13429
13430 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
13431 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
13432 files to get correct declarations of the ASN.1 item variables.
13433
13434 *Richard Levitte*
13435
13436 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
13437 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
13438 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
13439 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
13440 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
13441 ASN1_ITEM and no wrapper functions.
13442
13443 *Steve Henson*
13444
13445 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
13446 replace the old function pointer based I/O routines. Change most of
13447 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these.
13448
13449 *Steve Henson*
13450
13451 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor
13452 lines, recognize more "algorithms" that can be deselected, and make
13453 it complain about algorithm deselection that isn't recognised.
13454
13455 *Richard Levitte*
13456
13457 * New ASN1 functions to handle dup, sign, verify, digest, pack and
13458 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
13459 to use new functions. Add NO_ASN1_OLD which can be set to remove
13460 some old style ASN1 functions: this can be used to determine if old
13461 code will still work when these eventually go away.
13462
13463 *Steve Henson*
13464
13465 * New extension functions for OCSP structures, these follow the
13466 same conventions as certificates and CRLs.
13467
13468 *Steve Henson*
13469
13470 * New function X509V3_add1_i2d(). This automatically encodes and
13471 adds an extension. Its behaviour can be customised with various
13472 flags to append, replace or delete. Various wrappers added for
13473 certificates and CRLs.
13474
13475 *Steve Henson*
13476
13477 * Fix to avoid calling the underlying ASN1 print routine when
13478 an extension cannot be parsed. Correct a typo in the
13479 OCSP_SERVICELOC extension. Tidy up print OCSP format.
13480
13481 *Steve Henson*
13482
13483 * Make mkdef.pl parse some of the ASN1 macros and add appropriate
13484 entries for variables.
13485
13486 *Steve Henson*
13487
13488 * Add functionality to `apps/openssl.c` for detecting locking
13489 problems: As the program is single-threaded, all we have
13490 to do is register a locking callback using an array for
13491 storing which locks are currently held by the program.
13492
13493 *Bodo Moeller*
13494
13495 * Use a lock around the call to CRYPTO_get_ex_new_index() in
13496 SSL_get_ex_data_X509_STORE_idx(), which is used in
13497 ssl_verify_cert_chain() and thus can be called at any time
13498 during TLS/SSL handshakes so that thread-safety is essential.
13499 Unfortunately, the ex_data design is not at all suited
13500 for multi-threaded use, so it probably should be abolished.
13501
13502 *Bodo Moeller*
13503
13504 * Added Broadcom "ubsec" ENGINE to OpenSSL.
13505
13506 *Broadcom, tweaked and integrated by Geoff Thorpe*
13507
13508 * Move common extension printing code to new function
13509 X509V3_print_extensions(). Reorganise OCSP print routines and
13510 implement some needed OCSP ASN1 functions. Add OCSP extensions.
13511
13512 *Steve Henson*
13513
13514 * New function X509_signature_print() to remove duplication in some
13515 print routines.
13516
13517 *Steve Henson*
13518
13519 * Add a special meaning when SET OF and SEQUENCE OF flags are both
13520 set (this was treated exactly the same as SET OF previously). This
13521 is used to reorder the STACK representing the structure to match the
13522 encoding. This will be used to get round a problem where a PKCS7
13523 structure which was signed could not be verified because the STACK
13524 order did not reflect the encoded order.
13525
13526 *Steve Henson*
13527
13528 * Reimplement the OCSP ASN1 module using the new code.
13529
13530 *Steve Henson*
13531
13532 * Update the X509V3 code to permit the use of an ASN1_ITEM structure
13533 for its ASN1 operations. The old style function pointers still exist
13534 for now but they will eventually go away.
13535
13536 *Steve Henson*
13537
13538 * Merge in replacement ASN1 code from the ASN1 branch. This almost
13539 completely replaces the old ASN1 functionality with a table driven
13540 encoder and decoder which interprets an ASN1_ITEM structure describing
13541 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
13542 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
13543 has also been converted to the new form.
13544
13545 *Steve Henson*
13546
13547 * Change BN_mod_exp_recp so that negative moduli are tolerated
13548 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
13549 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
13550 for negative moduli.
13551
13552 *Bodo Moeller*
13553
13554 * Fix BN_uadd and BN_usub: Always return non-negative results instead
13555 of not touching the result's sign bit.
13556
13557 *Bodo Moeller*
13558
13559 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be
13560 set.
13561
13562 *Bodo Moeller*
13563
13564 * Changed the LHASH code to use prototypes for callbacks, and created
13565 macros to declare and implement thin (optionally static) functions
13566 that provide type-safety and avoid function pointer casting for the
13567 type-specific callbacks.
13568
13569 *Geoff Thorpe*
13570
13571 * Added Kerberos Cipher Suites to be used with TLS, as written in
13572 RFC 2712.
13573 *Veers Staats <[email protected]>,
13574 Jeffrey Altman <[email protected]>, via Richard Levitte*
13575
13576 * Reformat the FAQ so the different questions and answers can be divided
13577 in sections depending on the subject.
13578
13579 *Richard Levitte*
13580
13581 * Have the zlib compression code load ZLIB.DLL dynamically under
13582 Windows.
13583
13584 *Richard Levitte*
13585
13586 * New function BN_mod_sqrt for computing square roots modulo a prime
13587 (using the probabilistic Tonelli-Shanks algorithm unless
13588 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
13589 be handled deterministically).
13590
13591 *Lenka Fibikova <[email protected]>, Bodo Moeller*
13592
13593 * Make BN_mod_inverse faster by explicitly handling small quotients
13594 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
13595 512 bits], about 30% for larger ones [1024 or 2048 bits].)
13596
13597 *Bodo Moeller*
13598
13599 * New function BN_kronecker.
13600
13601 *Bodo Moeller*
13602
13603 * Fix BN_gcd so that it works on negative inputs; the result is
13604 positive unless both parameters are zero.
13605 Previously something reasonably close to an infinite loop was
13606 possible because numbers could be growing instead of shrinking
13607 in the implementation of Euclid's algorithm.
13608
13609 *Bodo Moeller*
13610
13611 * Fix BN_is_word() and BN_is_one() macros to take into account the
13612 sign of the number in question.
13613
13614 Fix BN_is_word(a,w) to work correctly for w == 0.
13615
13616 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
13617 because its test if the absolute value of 'a' equals 'w'.
13618 Note that BN_abs_is_word does *not* handle w == 0 reliably;
13619 it exists mostly for use in the implementations of BN_is_zero(),
13620 BN_is_one(), and BN_is_word().
13621
13622 *Bodo Moeller*
13623
13624 * New function BN_swap.
13625
13626 *Bodo Moeller*
13627
13628 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
13629 the exponentiation functions are more likely to produce reasonable
13630 results on negative inputs.
13631
13632 *Bodo Moeller*
13633
13634 * Change BN_mod_mul so that the result is always non-negative.
13635 Previously, it could be negative if one of the factors was negative;
13636 I don't think anyone really wanted that behaviour.
13637
13638 *Bodo Moeller*
13639
13640 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c`
13641 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`,
13642 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`)
13643 and add new functions:
13644
13645 BN_nnmod
13646 BN_mod_sqr
13647 BN_mod_add
13648 BN_mod_add_quick
13649 BN_mod_sub
13650 BN_mod_sub_quick
13651 BN_mod_lshift1
13652 BN_mod_lshift1_quick
13653 BN_mod_lshift
13654 BN_mod_lshift_quick
13655
13656 These functions always generate non-negative results.
13657
13658 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r`
13659 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead).
13660
13661 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as
13662 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`]
13663 be reduced modulo `m`.
13664
13665 *Lenka Fibikova <[email protected]>, Bodo Moeller*
13666
13667<!--
13668 The following entry accidentally appeared in the CHANGES file
13669 distributed with OpenSSL 0.9.7. The modifications described in
13670 it do *not* apply to OpenSSL 0.9.7.
13671
13672 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
13673 was actually never needed) and in BN_mul(). The removal in BN_mul()
13674 required a small change in bn_mul_part_recursive() and the addition
13675 of the functions bn_cmp_part_words(), bn_sub_part_words() and
13676 bn_add_part_words(), which do the same thing as bn_cmp_words(),
13677 bn_sub_words() and bn_add_words() except they take arrays with
13678 differing sizes.
13679
13680 *Richard Levitte*
13681-->
13682
13683 * In 'openssl passwd', verify passwords read from the terminal
13684 unless the '-salt' option is used (which usually means that
13685 verification would just waste user's time since the resulting
13686 hash is going to be compared with some given password hash)
13687 or the new '-noverify' option is used.
13688
13689 This is an incompatible change, but it does not affect
13690 non-interactive use of 'openssl passwd' (passwords on the command
13691 line, '-stdin' option, '-in ...' option) and thus should not
13692 cause any problems.
13693
13694 *Bodo Moeller*
13695
13696 * Remove all references to RSAref, since there's no more need for it.
13697
13698 *Richard Levitte*
13699
13700 * Make DSO load along a path given through an environment variable
13701 (SHLIB_PATH) with shl_load().
13702
13703 *Richard Levitte*
13704
13705 * Constify the ENGINE code as a result of BIGNUM constification.
13706 Also constify the RSA code and most things related to it. In a
13707 few places, most notable in the depth of the ASN.1 code, ugly
13708 casts back to non-const were required (to be solved at a later
13709 time)
13710
13711 *Richard Levitte*
13712
13713 * Make it so the openssl application has all engines loaded by default.
13714
13715 *Richard Levitte*
13716
13717 * Constify the BIGNUM routines a little more.
13718
13719 *Richard Levitte*
13720
13721 * Add the following functions:
13722
13723 ENGINE_load_cswift()
13724 ENGINE_load_chil()
13725 ENGINE_load_atalla()
13726 ENGINE_load_nuron()
13727 ENGINE_load_builtin_engines()
13728
13729 That way, an application can itself choose if external engines that
13730 are built-in in OpenSSL shall ever be used or not. The benefit is
13731 that applications won't have to be linked with libdl or other dso
13732 libraries unless it's really needed.
13733
13734 Changed 'openssl engine' to load all engines on demand.
13735 Changed the engine header files to avoid the duplication of some
13736 declarations (they differed!).
13737
13738 *Richard Levitte*
13739
13740 * 'openssl engine' can now list capabilities.
13741
13742 *Richard Levitte*
13743
13744 * Better error reporting in 'openssl engine'.
13745
13746 *Richard Levitte*
13747
13748 * Never call load_dh_param(NULL) in s_server.
13749
13750 *Bodo Moeller*
13751
13752 * Add engine application. It can currently list engines by name and
13753 identity, and test if they are actually available.
13754
13755 *Richard Levitte*
13756
13757 * Improve RPM specification file by forcing symbolic linking and making
13758 sure the installed documentation is also owned by root.root.
13759
13760 *Damien Miller <[email protected]>*
13761
13762 * Give the OpenSSL applications more possibilities to make use of
13763 keys (public as well as private) handled by engines.
13764
13765 *Richard Levitte*
13766
13767 * Add OCSP code that comes from CertCo.
13768
13769 *Richard Levitte*
13770
13771 * Add VMS support for the Rijndael code.
13772
13773 *Richard Levitte*
13774
13775 * Added untested support for Nuron crypto accelerator.
13776
13777 *Ben Laurie*
13778
13779 * Add support for external cryptographic devices. This code was
13780 previously distributed separately as the "engine" branch.
13781
13782 *Geoff Thorpe, Richard Levitte*
13783
13784 * Rework the filename-translation in the DSO code. It is now possible to
13785 have far greater control over how a "name" is turned into a filename
13786 depending on the operating environment and any oddities about the
13787 different shared library filenames on each system.
13788
13789 *Geoff Thorpe*
13790
13791 * Support threads on FreeBSD-elf in Configure.
13792
13793 *Richard Levitte*
13794
13795 * Fix for SHA1 assembly problem with MASM: it produces
13796 warnings about corrupt line number information when assembling
13797 with debugging information. This is caused by the overlapping
13798 of two sections.
13799
13800 *Bernd Matthes <[email protected]>, Steve Henson*
13801
13802 * NCONF changes.
13803 NCONF_get_number() has no error checking at all. As a replacement,
13804 NCONF_get_number_e() is defined (`_e` for "error checking") and is
13805 promoted strongly. The old NCONF_get_number is kept around for
13806 binary backward compatibility.
13807 Make it possible for methods to load from something other than a BIO,
13808 by providing a function pointer that is given a name instead of a BIO.
13809 For example, this could be used to load configuration data from an
13810 LDAP server.
13811
13812 *Richard Levitte*
13813
13814 * Fix for non blocking accept BIOs. Added new I/O special reason
13815 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
13816 with non blocking I/O was not possible because no retry code was
13817 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
13818 this case.
13819
13820 *Steve Henson*
13821
13822 * Added the beginnings of Rijndael support.
13823
13824 *Ben Laurie*
13825
13826 * Fix for bug in DirectoryString mask setting. Add support for
13827 X509_NAME_print_ex() in 'req' and X509_print_ex() function
13828 to allow certificate printing to more controllable, additional
13829 'certopt' option to 'x509' to allow new printing options to be
13830 set.
13831
13832 *Steve Henson*
13833
13834 * Clean old EAY MD5 hack from e_os.h.
13835
13836 *Richard Levitte*
13837
13838### Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
13839
13840 * Fix null-pointer assignment in do_change_cipher_spec() revealed
13841 by using the Codenomicon TLS Test Tool ([CVE-2004-0079])
13842
13843 *Joe Orton, Steve Henson*
13844
13845### Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
13846
13847 * Fix additional bug revealed by the NISCC test suite:
13848
13849 Stop bug triggering large recursion when presented with
13850 certain ASN.1 tags ([CVE-2003-0851])
13851
13852 *Steve Henson*
13853
13854### Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
13855
13856 * Fix various bugs revealed by running the NISCC test suite:
13857
13858 Stop out of bounds reads in the ASN1 code when presented with
13859 invalid tags (CVE-2003-0543 and CVE-2003-0544).
13860
13861 If verify callback ignores invalid public key errors don't try to check
13862 certificate signature with the NULL public key.
13863
13864 *Steve Henson*
13865
13866 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
13867 if the server requested one: as stated in TLS 1.0 and SSL 3.0
13868 specifications.
13869
13870 *Steve Henson*
13871
13872 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
13873 extra data after the compression methods not only for TLS 1.0
13874 but also for SSL 3.0 (as required by the specification).
13875
13876 *Bodo Moeller; problem pointed out by Matthias Loepfe*
13877
13878 * Change X509_certificate_type() to mark the key as exported/exportable
13879 when it's 512 *bits* long, not 512 bytes.
13880
13881 *Richard Levitte*
13882
13883### Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
13884
13885 * Countermeasure against the Klima-Pokorny-Rosa extension of
13886 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
13887 a protocol version number mismatch like a decryption error
13888 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
13889
13890 *Bodo Moeller*
13891
13892 * Turn on RSA blinding by default in the default implementation
13893 to avoid a timing attack. Applications that don't want it can call
13894 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
13895 They would be ill-advised to do so in most cases.
13896
13897 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller*
13898
13899 * Change RSA blinding code so that it works when the PRNG is not
13900 seeded (in this case, the secret RSA exponent is abused as
13901 an unpredictable seed -- if it is not unpredictable, there
13902 is no point in blinding anyway). Make RSA blinding thread-safe
13903 by remembering the creator's thread ID in rsa->blinding and
13904 having all other threads use local one-time blinding factors
13905 (this requires more computation than sharing rsa->blinding, but
13906 avoids excessive locking; and if an RSA object is not shared
13907 between threads, blinding will still be very fast).
13908
13909 *Bodo Moeller*
13910
13911### Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
13912
13913 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
13914 via timing by performing a MAC computation even if incorrect
13915 block cipher padding has been found. This is a countermeasure
13916 against active attacks where the attacker has to distinguish
13917 between bad padding and a MAC verification error. ([CVE-2003-0078])
13918
13919 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
13920 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
13921 Martin Vuagnoux (EPFL, Ilion)*
13922
13923### Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
13924
13925 * New function OPENSSL_cleanse(), which is used to cleanse a section of
13926 memory from its contents. This is done with a counter that will
13927 place alternating values in each byte. This can be used to solve
13928 two issues: 1) the removal of calls to memset() by highly optimizing
13929 compilers, and 2) cleansing with other values than 0, since those can
13930 be read through on certain media, for example a swap space on disk.
13931
13932 *Geoff Thorpe*
13933
13934 * Bugfix: client side session caching did not work with external caching,
13935 because the session->cipher setting was not restored when reloading
13936 from the external cache. This problem was masked, when
13937 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
13938 (Found by Steve Haslam <[email protected]>.)
13939
13940 *Lutz Jaenicke*
13941
13942 * Fix client_certificate (ssl/s2_clnt.c): The permissible total
13943 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
13944
13945 *Zeev Lieber <[email protected]>*
13946
13947 * Undo an undocumented change introduced in 0.9.6e which caused
13948 repeated calls to OpenSSL_add_all_ciphers() and
13949 OpenSSL_add_all_digests() to be ignored, even after calling
13950 EVP_cleanup().
13951
13952 *Richard Levitte*
13953
13954 * Change the default configuration reader to deal with last line not
13955 being properly terminated.
13956
13957 *Richard Levitte*
13958
13959 * Change X509_NAME_cmp() so it applies the special rules on handling
13960 DN values that are of type PrintableString, as well as RDNs of type
13961 emailAddress where the value has the type ia5String.
13962
13963 *[email protected] via Richard Levitte*
13964
13965 * Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
13966 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
13967 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
13968 the bitwise-OR of the two for use by the majority of applications
13969 wanting this behaviour, and update the docs. The documented
13970 behaviour and actual behaviour were inconsistent and had been
13971 changing anyway, so this is more a bug-fix than a behavioural
13972 change.
13973
13974 *Geoff Thorpe, diagnosed by Nadav Har'El*
13975
13976 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
13977 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
13978
13979 *Bodo Moeller*
13980
13981 * Fix initialization code race conditions in
13982 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
13983 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
13984 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
13985 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
13986 ssl2_get_cipher_by_char(),
13987 ssl3_get_cipher_by_char().
13988
13989 *Patrick McCormick <[email protected]>, Bodo Moeller*
13990
13991 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
13992 the cached sessions are flushed, as the remove_cb() might use ex_data
13993 contents. Bug found by Sam Varshavchik <[email protected]>
13994 (see [openssl.org #212]).
13995
13996 *Geoff Thorpe, Lutz Jaenicke*
13997
13998 * Fix typo in OBJ_txt2obj which incorrectly passed the content
13999 length, instead of the encoding length to d2i_ASN1_OBJECT.
14000
14001 *Steve Henson*
14002
14003### Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
14004
14005 * [In 0.9.6g-engine release:]
14006 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`).
14007
14008 *Lynn Gazis <[email protected]>*
14009
14010### Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
14011
14012 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
14013 and get fix the header length calculation.
14014 *Florian Weimer <[email protected]>,
14015 Alon Kantor <[email protected]> (and others), Steve Henson*
14016
14017 * Use proper error handling instead of 'assertions' in buffer
14018 overflow checks added in 0.9.6e. This prevents DoS (the
14019 assertions could call abort()).
14020
14021 *Arne Ansper <[email protected]>, Bodo Moeller*
14022
14023### Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
14024
14025 * Add various sanity checks to asn1_get_length() to reject
14026 the ASN1 length bytes if they exceed sizeof(long), will appear
14027 negative or the content length exceeds the length of the
14028 supplied buffer.
14029
14030 *Steve Henson, Adi Stav <[email protected]>, James Yonan <[email protected]>*
14031
14032 * Fix cipher selection routines: ciphers without encryption had no flags
14033 for the cipher strength set and where therefore not handled correctly
14034 by the selection routines (PR #130).
14035
14036 *Lutz Jaenicke*
14037
14038 * Fix EVP_dsa_sha macro.
14039
14040 *Nils Larsch*
14041
14042 * New option
14043 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
14044 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
14045 that was added in OpenSSL 0.9.6d.
14046
14047 As the countermeasure turned out to be incompatible with some
14048 broken SSL implementations, the new option is part of SSL_OP_ALL.
14049 SSL_OP_ALL is usually employed when compatibility with weird SSL
14050 implementations is desired (e.g. '-bugs' option to 's_client' and
14051 's_server'), so the new option is automatically set in many
14052 applications.
14053
14054 *Bodo Moeller*
14055
14056 * Changes in security patch:
14057
14058 Changes marked "(CHATS)" were sponsored by the Defense Advanced
14059 Research Projects Agency (DARPA) and Air Force Research Laboratory,
14060 Air Force Materiel Command, USAF, under agreement number
14061 F30602-01-2-0537.
14062
14063 * Add various sanity checks to asn1_get_length() to reject
14064 the ASN1 length bytes if they exceed sizeof(long), will appear
14065 negative or the content length exceeds the length of the
14066 supplied buffer. ([CVE-2002-0659])
14067
14068 *Steve Henson, Adi Stav <[email protected]>, James Yonan <[email protected]>*
14069
14070 * Assertions for various potential buffer overflows, not known to
14071 happen in practice.
14072
14073 *Ben Laurie (CHATS)*
14074
14075 * Various temporary buffers to hold ASCII versions of integers were
14076 too small for 64 bit platforms. ([CVE-2002-0655])
14077 *Matthew Byng-Maddick <[email protected]> and Ben Laurie (CHATS)>*
14078
14079 * Remote buffer overflow in SSL3 protocol - an attacker could
14080 supply an oversized session ID to a client. ([CVE-2002-0656])
14081
14082 *Ben Laurie (CHATS)*
14083
14084 * Remote buffer overflow in SSL2 protocol - an attacker could
14085 supply an oversized client master key. ([CVE-2002-0656])
14086
14087 *Ben Laurie (CHATS)*
14088
14089### Changes between 0.9.6c and 0.9.6d [9 May 2002]
14090
14091 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
14092 encoded as NULL) with id-dsa-with-sha1.
14093
14094 *Nils Larsch <[email protected]>; problem pointed out by Bodo Moeller*
14095
14096 * Check various `X509_...()` return values in `apps/req.c`.
14097
14098 *Nils Larsch <[email protected]>*
14099
14100 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
14101 an end-of-file condition would erroneously be flagged, when the CRLF
14102 was just at the end of a processed block. The bug was discovered when
14103 processing data through a buffering memory BIO handing the data to a
14104 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
14105 <[email protected]> and Nedelcho Stanev.
14106
14107 *Lutz Jaenicke*
14108
14109 * Implement a countermeasure against a vulnerability recently found
14110 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
14111 before application data chunks to avoid the use of known IVs
14112 with data potentially chosen by the attacker.
14113
14114 *Bodo Moeller*
14115
14116 * Fix length checks in ssl3_get_client_hello().
14117
14118 *Bodo Moeller*
14119
14120 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently
14121 to prevent ssl3_read_internal() from incorrectly assuming that
14122 ssl3_read_bytes() found application data while handshake
14123 processing was enabled when in fact s->s3->in_read_app_data was
14124 merely automatically cleared during the initial handshake.
14125
14126 *Bodo Moeller; problem pointed out by Arne Ansper <[email protected]>*
14127
14128 * Fix object definitions for Private and Enterprise: they were not
14129 recognized in their shortname (=lowercase) representation. Extend
14130 obj_dat.pl to issue an error when using undefined keywords instead
14131 of silently ignoring the problem (Svenning Sorensen
14132 <[email protected]>).
14133
14134 *Lutz Jaenicke*
14135
14136 * Fix DH_generate_parameters() so that it works for 'non-standard'
14137 generators, i.e. generators other than 2 and 5. (Previously, the
14138 code did not properly initialise the 'add' and 'rem' values to
14139 BN_generate_prime().)
14140
14141 In the new general case, we do not insist that 'generator' is
14142 actually a primitive root: This requirement is rather pointless;
14143 a generator of the order-q subgroup is just as good, if not
14144 better.
14145
14146 *Bodo Moeller*
14147
14148 * Map new X509 verification errors to alerts. Discovered and submitted by
14149 Tom Wu <[email protected]>.
14150
14151 *Lutz Jaenicke*
14152
14153 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
14154 returning non-zero before the data has been completely received
14155 when using non-blocking I/O.
14156
14157 *Bodo Moeller; problem pointed out by John Hughes*
14158
14159 * Some of the ciphers missed the strength entry (SSL_LOW etc).
14160
14161 *Ben Laurie, Lutz Jaenicke*
14162
14163 * Fix bug in SSL_clear(): bad sessions were not removed (found by
14164 Yoram Zahavi <[email protected]>).
14165
14166 *Lutz Jaenicke*
14167
14168 * Add information about CygWin 1.3 and on, and preserve proper
14169 configuration for the versions before that.
14170
14171 *Corinna Vinschen <[email protected]> and Richard Levitte*
14172
14173 * Make removal from session cache (SSL_CTX_remove_session()) more robust:
14174 check whether we deal with a copy of a session and do not delete from
14175 the cache in this case. Problem reported by "Izhar Shoshani Levi"
14176 <[email protected]>.
14177
14178 *Lutz Jaenicke*
14179
14180 * Do not store session data into the internal session cache, if it
14181 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
14182 flag is set). Proposed by Aslam <[email protected]>.
14183
14184 *Lutz Jaenicke*
14185
14186 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
14187 value is 0.
14188
14189 *Richard Levitte*
14190
14191 * [In 0.9.6d-engine release:]
14192 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
14193
14194 *Toomas Kiisk <[email protected]> via Richard Levitte*
14195
14196 * Add the configuration target linux-s390x.
14197
14198 *Neale Ferguson <[email protected]> via Richard Levitte*
14199
14200 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
14201 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
14202 variable as an indication that a ClientHello message has been
14203 received. As the flag value will be lost between multiple
14204 invocations of ssl3_accept when using non-blocking I/O, the
14205 function may not be aware that a handshake has actually taken
14206 place, thus preventing a new session from being added to the
14207 session cache.
14208
14209 To avoid this problem, we now set s->new_session to 2 instead of
14210 using a local variable.
14211
14212 *Lutz Jaenicke, Bodo Moeller*
14213
14214 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
14215 if the SSL_R_LENGTH_MISMATCH error is detected.
14216
14217 *Geoff Thorpe, Bodo Moeller*
14218
14219 * New 'shared_ldflag' column in Configure platform table.
14220
14221 *Richard Levitte*
14222
14223 * Fix EVP_CIPHER_mode macro.
14224
14225 *"Dan S. Camper" <[email protected]>*
14226
14227 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
14228 type, we must throw them away by setting rr->length to 0.
14229
14230 *D P Chang <[email protected]>*
14231
14232### Changes between 0.9.6b and 0.9.6c [21 dec 2001]
14233
14234 * Fix BN_rand_range bug pointed out by Dominikus Scherkl
14235 <[email protected]>. (The previous implementation
14236 worked incorrectly for those cases where range = `10..._2` and
14237 `3*range` is two bits longer than range.)
14238
14239 *Bodo Moeller*
14240
14241 * Only add signing time to PKCS7 structures if it is not already
14242 present.
14243
14244 *Steve Henson*
14245
14246 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
14247 OBJ_ld_ce should be OBJ_id_ce.
14248 Also some ip-pda OIDs in crypto/objects/objects.txt were
14249 incorrect (cf. RFC 3039).
14250
14251 *Matt Cooper, Frederic Giudicelli, Bodo Moeller*
14252
14253 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
14254 returns early because it has nothing to do.
14255
14256 *Andy Schneider <[email protected]>*
14257
14258 * [In 0.9.6c-engine release:]
14259 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
14260
14261 *Andy Schneider <[email protected]>*
14262
14263 * [In 0.9.6c-engine release:]
14264 Add support for Cryptographic Appliance's keyserver technology.
14265 (Use engine 'keyclient')
14266
14267 *Cryptographic Appliances and Geoff Thorpe*
14268
14269 * Add a configuration entry for OS/390 Unix. The C compiler 'c89'
14270 is called via tools/c89.sh because arguments have to be
14271 rearranged (all '-L' options must appear before the first object
14272 modules).
14273
14274 *Richard Shapiro <[email protected]>*
14275
14276 * [In 0.9.6c-engine release:]
14277 Add support for Broadcom crypto accelerator cards, backported
14278 from 0.9.7.
14279
14280 *Broadcom, Nalin Dahyabhai <[email protected]>, Mark Cox*
14281
14282 * [In 0.9.6c-engine release:]
14283 Add support for SureWare crypto accelerator cards from
14284 Baltimore Technologies. (Use engine 'sureware')
14285
14286 *Baltimore Technologies and Mark Cox*
14287
14288 * [In 0.9.6c-engine release:]
14289 Add support for crypto accelerator cards from Accelerated
14290 Encryption Processing, www.aep.ie. (Use engine 'aep')
14291
14292 *AEP Inc. and Mark Cox*
14293
14294 * Add a configuration entry for gcc on UnixWare.
14295
14296 *Gary Benson <[email protected]>*
14297
14298 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
14299 messages are stored in a single piece (fixed-length part and
14300 variable-length part combined) and fix various bugs found on the way.
14301
14302 *Bodo Moeller*
14303
14304 * Disable caching in BIO_gethostbyname(), directly use gethostbyname()
14305 instead. BIO_gethostbyname() does not know what timeouts are
14306 appropriate, so entries would stay in cache even when they have
14307 become invalid.
14308 *Bodo Moeller; problem pointed out by Rich Salz <[email protected]>*
14309
14310 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
14311 faced with a pathologically small ClientHello fragment that does
14312 not contain client_version: Instead of aborting with an error,
14313 simply choose the highest available protocol version (i.e.,
14314 TLS 1.0 unless it is disabled). In practice, ClientHello
14315 messages are never sent like this, but this change gives us
14316 strictly correct behaviour at least for TLS.
14317
14318 *Bodo Moeller*
14319
14320 * Fix SSL handshake functions and SSL_clear() such that SSL_clear()
14321 never resets s->method to s->ctx->method when called from within
14322 one of the SSL handshake functions.
14323
14324 *Bodo Moeller; problem pointed out by Niko Baric*
14325
14326 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
14327 (sent using the client's version number) if client_version is
14328 smaller than the protocol version in use. Also change
14329 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
14330 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
14331 the client will at least see that alert.
14332
14333 *Bodo Moeller*
14334
14335 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
14336 correctly.
14337
14338 *Bodo Moeller*
14339
14340 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
14341 client receives HelloRequest while in a handshake.
14342
14343 *Bodo Moeller; bug noticed by Andy Schneider <[email protected]>*
14344
14345 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
14346 should end in 'break', not 'goto end' which circumvents various
14347 cleanups done in state SSL_ST_OK. But session related stuff
14348 must be disabled for SSL_ST_OK in the case that we just sent a
14349 HelloRequest.
14350
14351 Also avoid some overhead by not calling ssl_init_wbio_buffer()
14352 before just sending a HelloRequest.
14353
14354 *Bodo Moeller, Eric Rescorla <[email protected]>*
14355
14356 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
14357 reveal whether illegal block cipher padding was found or a MAC
14358 verification error occurred. (Neither SSLerr() codes nor alerts
14359 are directly visible to potential attackers, but the information
14360 may leak via logfiles.)
14361
14362 Similar changes are not required for the SSL 2.0 implementation
14363 because the number of padding bytes is sent in clear for SSL 2.0,
14364 and the extra bytes are just ignored. However ssl/s2_pkt.c
14365 failed to verify that the purported number of padding bytes is in
14366 the legal range.
14367
14368 *Bodo Moeller*
14369
14370 * Add OpenUNIX-8 support including shared libraries
14371 (Boyd Lynn Gerber <[email protected]>).
14372
14373 *Lutz Jaenicke*
14374
14375 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
14376 'wristwatch attack' using huge encoding parameters (cf.
14377 James H. Manger's CRYPTO 2001 paper). Note that the
14378 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
14379 encoding parameters and hence was not vulnerable.
14380
14381 *Bodo Moeller*
14382
14383 * BN_sqr() bug fix.
14384
14385 *Ulf Möller, reported by Jim Ellis <[email protected]>*
14386
14387 * Rabin-Miller test analyses assume uniformly distributed witnesses,
14388 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
14389 followed by modular reduction.
14390
14391 *Bodo Moeller; pointed out by Adam Young <[email protected]>*
14392
14393 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
14394 equivalent based on BN_pseudo_rand() instead of BN_rand().
14395
14396 *Bodo Moeller*
14397
14398 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
14399 This function was broken, as the check for a new client hello message
14400 to handle SGC did not allow these large messages.
14401 (Tracked down by "Douglas E. Engert" <[email protected]>.)
14402
14403 *Lutz Jaenicke*
14404
14405 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`.
14406
14407 *Lutz Jaenicke*
14408
14409 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
14410 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <[email protected]>).
14411
14412 *Lutz Jaenicke*
14413
14414 * Rework the configuration and shared library support for Tru64 Unix.
14415 The configuration part makes use of modern compiler features and
14416 still retains old compiler behavior for those that run older versions
14417 of the OS. The shared library support part includes a variant that
14418 uses the RPATH feature, and is available through the special
14419 configuration target "alpha-cc-rpath", which will never be selected
14420 automatically.
14421
14422 *Tim Mooney <[email protected]> via Richard Levitte*
14423
14424 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
14425 with the same message size as in ssl3_get_certificate_request().
14426 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
14427 messages might inadvertently be reject as too long.
14428
14429 *Petr Lampa <[email protected]>*
14430
14431 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
14432
14433 *Andy Polyakov*
14434
14435 * Modified SSL library such that the verify_callback that has been set
14436 specifically for an SSL object with SSL_set_verify() is actually being
14437 used. Before the change, a verify_callback set with this function was
14438 ignored and the verify_callback() set in the SSL_CTX at the time of
14439 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
14440 to allow the necessary settings.
14441
14442 *Lutz Jaenicke*
14443
14444 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
14445 explicitly to NULL, as at least on Solaris 8 this seems not always to be
14446 done automatically (in contradiction to the requirements of the C
14447 standard). This made problems when used from OpenSSH.
14448
14449 *Lutz Jaenicke*
14450
14451 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
14452 dh->length and always used
14453
14454 BN_rand_range(priv_key, dh->p).
14455
14456 BN_rand_range() is not necessary for Diffie-Hellman, and this
14457 specific range makes Diffie-Hellman unnecessarily inefficient if
14458 dh->length (recommended exponent length) is much smaller than the
14459 length of dh->p. We could use BN_rand_range() if the order of
14460 the subgroup was stored in the DH structure, but we only have
14461 dh->length.
14462
14463 So switch back to
14464
14465 BN_rand(priv_key, l, ...)
14466
14467 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
14468 otherwise.
14469
14470 *Bodo Moeller*
14471
14472 * In
14473
14474 RSA_eay_public_encrypt
14475 RSA_eay_private_decrypt
14476 RSA_eay_private_encrypt (signing)
14477 RSA_eay_public_decrypt (signature verification)
14478
14479 (default implementations for RSA_public_encrypt,
14480 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
14481 always reject numbers >= n.
14482
14483 *Bodo Moeller*
14484
14485 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
14486 to synchronize access to 'locking_thread'. This is necessary on
14487 systems where access to 'locking_thread' (an 'unsigned long'
14488 variable) is not atomic.
14489
14490 *Bodo Moeller*
14491
14492 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
14493 *before* setting the 'crypto_lock_rand' flag. The previous code had
14494 a race condition if 0 is a valid thread ID.
14495
14496 *Travis Vitek <[email protected]>*
14497
14498 * Add support for shared libraries under Irix.
14499
14500 *Albert Chin-A-Young <[email protected]>*
14501
14502 * Add configuration option to build on Linux on both big-endian and
14503 little-endian MIPS.
14504
14505 *Ralf Baechle <[email protected]>*
14506
14507 * Add the possibility to create shared libraries on HP-UX.
14508
14509 *Richard Levitte*
14510
14511### Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
14512
14513 * Change ssleay_rand_bytes (crypto/rand/md_rand.c)
14514 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
14515 Markku-Juhani O. Saarinen <[email protected]>:
14516 PRNG state recovery was possible based on the output of
14517 one PRNG request appropriately sized to gain knowledge on
14518 'md' followed by enough consecutive 1-byte PRNG requests
14519 to traverse all of 'state'.
14520
14521 1. When updating 'md_local' (the current thread's copy of 'md')
14522 during PRNG output generation, hash all of the previous
14523 'md_local' value, not just the half used for PRNG output.
14524
14525 2. Make the number of bytes from 'state' included into the hash
14526 independent from the number of PRNG bytes requested.
14527
14528 The first measure alone would be sufficient to avoid
14529 Markku-Juhani's attack. (Actually it had never occurred
14530 to me that the half of 'md_local' used for chaining was the
14531 half from which PRNG output bytes were taken -- I had always
14532 assumed that the secret half would be used.) The second
14533 measure makes sure that additional data from 'state' is never
14534 mixed into 'md_local' in small portions; this heuristically
14535 further strengthens the PRNG.
14536
14537 *Bodo Moeller*
14538
14539 * Fix crypto/bn/asm/mips3.s.
14540
14541 *Andy Polyakov*
14542
14543 * When only the key is given to "enc", the IV is undefined. Print out
14544 an error message in this case.
14545
14546 *Lutz Jaenicke*
14547
14548 * Handle special case when X509_NAME is empty in X509 printing routines.
14549
14550 *Steve Henson*
14551
14552 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
14553 positive and less than q.
14554
14555 *Bodo Moeller*
14556
14557 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is
14558 used: it isn't thread safe and the add_lock_callback should handle
14559 that itself.
14560
14561 *Paul Rose <[email protected]>*
14562
14563 * Verify that incoming data obeys the block size in
14564 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
14565
14566 *Bodo Moeller*
14567
14568 * Fix OAEP check.
14569
14570 *Ulf Möller, Bodo Möller*
14571
14572 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
14573 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
14574 when fixing the server behaviour for backwards-compatible 'client
14575 hello' messages. (Note that the attack is impractical against
14576 SSL 3.0 and TLS 1.0 anyway because length and version checking
14577 means that the probability of guessing a valid ciphertext is
14578 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
14579 paper.)
14580
14581 Before 0.9.5, the countermeasure (hide the error by generating a
14582 random 'decryption result') did not work properly because
14583 ERR_clear_error() was missing, meaning that SSL_get_error() would
14584 detect the supposedly ignored error.
14585
14586 Both problems are now fixed.
14587
14588 *Bodo Moeller*
14589
14590 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
14591 (previously it was 1024).
14592
14593 *Bodo Moeller*
14594
14595 * Fix for compatibility mode trust settings: ignore trust settings
14596 unless some valid trust or reject settings are present.
14597
14598 *Steve Henson*
14599
14600 * Fix for blowfish EVP: its a variable length cipher.
14601
14602 *Steve Henson*
14603
14604 * Fix various bugs related to DSA S/MIME verification. Handle missing
14605 parameters in DSA public key structures and return an error in the
14606 DSA routines if parameters are absent.
14607
14608 *Steve Henson*
14609
14610 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
14611 in the current directory if neither $RANDFILE nor $HOME was set.
14612 RAND_file_name() in 0.9.6a returned NULL in this case. This has
14613 caused some confusion to Windows users who haven't defined $HOME.
14614 Thus RAND_file_name() is changed again: e_os.h can define a
14615 DEFAULT_HOME, which will be used if $HOME is not set.
14616 For Windows, we use "C:"; on other platforms, we still require
14617 environment variables.
14618
14619 * Move 'if (!initialized) RAND_poll()' into regions protected by
14620 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
14621 having multiple threads call RAND_poll() concurrently.
14622
14623 *Bodo Moeller*
14624
14625 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
14626 combination of a flag and a thread ID variable.
14627 Otherwise while one thread is in ssleay_rand_bytes (which sets the
14628 flag), *other* threads can enter ssleay_add_bytes without obeying
14629 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
14630 that they do not hold after the first thread unsets add_do_not_lock).
14631
14632 *Bodo Moeller*
14633
14634 * Change bctest again: '-x' expressions are not available in all
14635 versions of 'test'.
14636
14637 *Bodo Moeller*
14638
14639### Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
14640
14641 * Fix a couple of memory leaks in PKCS7_dataDecode()
14642
14643 *Steve Henson, reported by Heyun Zheng <[email protected]>*
14644
14645 * Change Configure and Makefiles to provide EXE_EXT, which will contain
14646 the default extension for executables, if any. Also, make the perl
14647 scripts that use symlink() to test if it really exists and use "cp"
14648 if it doesn't. All this made OpenSSL compilable and installable in
14649 CygWin.
14650
14651 *Richard Levitte*
14652
14653 * Fix for asn1_GetSequence() for indefinite length constructed data.
14654 If SEQUENCE is length is indefinite just set c->slen to the total
14655 amount of data available.
14656
14657 *Steve Henson, reported by [email protected]*
14658
14659 *This change does not apply to 0.9.7.*
14660
14661 * Change bctest to avoid here-documents inside command substitution
14662 (workaround for FreeBSD /bin/sh bug).
14663 For compatibility with Ultrix, avoid shell functions (introduced
14664 in the bctest version that searches along $PATH).
14665
14666 *Bodo Moeller*
14667
14668 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
14669 with des_encrypt() defined on some operating systems, like Solaris
14670 and UnixWare.
14671
14672 *Richard Levitte*
14673
14674 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
14675 On the Importance of Eliminating Errors in Cryptographic
14676 Computations, J. Cryptology 14 (2001) 2, 101-119,
14677 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>).
14678
14679 *Ulf Moeller*
14680
14681 * MIPS assembler BIGNUM division bug fix.
14682
14683 *Andy Polyakov*
14684
14685 * Disabled incorrect Alpha assembler code.
14686
14687 *Richard Levitte*
14688
14689 * Fix PKCS#7 decode routines so they correctly update the length
14690 after reading an EOC for the EXPLICIT tag.
14691
14692 *Steve Henson*
14693
14694 *This change does not apply to 0.9.7.*
14695
14696 * Fix bug in PKCS#12 key generation routines. This was triggered
14697 if a 3DES key was generated with a 0 initial byte. Include
14698 PKCS12_BROKEN_KEYGEN compilation option to retain the old
14699 (but broken) behaviour.
14700
14701 *Steve Henson*
14702
14703 * Enhance bctest to search for a working bc along $PATH and print
14704 it when found.
14705
14706 *Tim Rice <[email protected]> via Richard Levitte*
14707
14708 * Fix memory leaks in err.c: free err_data string if necessary;
14709 don't write to the wrong index in ERR_set_error_data.
14710
14711 *Bodo Moeller*
14712
14713 * Implement ssl23_peek (analogous to ssl23_read), which previously
14714 did not exist.
14715
14716 *Bodo Moeller*
14717
14718 * Replace rdtsc with `_emit` statements for VC++ version 5.
14719
14720 *Jeremy Cooper <[email protected]>*
14721
14722 * Make it possible to reuse SSLv2 sessions.
14723
14724 *Richard Levitte*
14725
14726 * In copy_email() check for >= 0 as a return value for
14727 X509_NAME_get_index_by_NID() since 0 is a valid index.
14728
14729 *Steve Henson reported by Massimiliano Pala <[email protected]>*
14730
14731 * Avoid coredump with unsupported or invalid public keys by checking if
14732 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
14733 PKCS7_verify() fails with non detached data.
14734
14735 *Steve Henson*
14736
14737 * Don't use getenv in library functions when run as setuid/setgid.
14738 New function OPENSSL_issetugid().
14739
14740 *Ulf Moeller*
14741
14742 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
14743 due to incorrect handling of multi-threading:
14744
14745 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
14746
14747 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
14748
14749 3. Count how many times MemCheck_off() has been called so that
14750 nested use can be treated correctly. This also avoids
14751 inband-signalling in the previous code (which relied on the
14752 assumption that thread ID 0 is impossible).
14753
14754 *Bodo Moeller*
14755
14756 * Add "-rand" option also to s_client and s_server.
14757
14758 *Lutz Jaenicke*
14759
14760 * Fix CPU detection on Irix 6.x.
14761 *Kurt Hockenbury <[email protected]> and
14762 "Bruce W. Forsberg" <[email protected]>*
14763
14764 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME
14765 was empty.
14766
14767 *Steve Henson*
14768
14769 *This change does not apply to 0.9.7.*
14770
14771 * Use the cached encoding of an X509_NAME structure rather than
14772 copying it. This is apparently the reason for the libsafe "errors"
14773 but the code is actually correct.
14774
14775 *Steve Henson*
14776
14777 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
14778 Bleichenbacher's DSA attack.
14779 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
14780 to be set and top=0 forces the highest bit to be set; top=-1 is new
14781 and leaves the highest bit random.
14782
14783 *Ulf Moeller, Bodo Moeller*
14784
14785 * In the `NCONF_...`-based implementations for `CONF_...` queries
14786 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
14787 a temporary CONF structure with the data component set to NULL
14788 (which gives segmentation faults in lh_retrieve).
14789 Instead, use NULL for the CONF pointer in CONF_get_string and
14790 CONF_get_number (which may use environment variables) and directly
14791 return NULL from CONF_get_section.
14792
14793 *Bodo Moeller*
14794
14795 * Fix potential buffer overrun for EBCDIC.
14796
14797 *Ulf Moeller*
14798
14799 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign
14800 keyUsage if basicConstraints absent for a CA.
14801
14802 *Steve Henson*
14803
14804 * Make SMIME_write_PKCS7() write mail header values with a format that
14805 is more generally accepted (no spaces before the semicolon), since
14806 some programs can't parse those values properly otherwise. Also make
14807 sure BIO's that break lines after each write do not create invalid
14808 headers.
14809
14810 *Richard Levitte*
14811
14812 * Make the CRL encoding routines work with empty SEQUENCE OF. The
14813 macros previously used would not encode an empty SEQUENCE OF
14814 and break the signature.
14815
14816 *Steve Henson*
14817
14818 *This change does not apply to 0.9.7.*
14819
14820 * Zero the premaster secret after deriving the master secret in
14821 DH ciphersuites.
14822
14823 *Steve Henson*
14824
14825 * Add some EVP_add_digest_alias registrations (as found in
14826 OpenSSL_add_all_digests()) to SSL_library_init()
14827 aka OpenSSL_add_ssl_algorithms(). This provides improved
14828 compatibility with peers using X.509 certificates
14829 with unconventional AlgorithmIdentifier OIDs.
14830
14831 *Bodo Moeller*
14832
14833 * Fix for Irix with NO_ASM.
14834
14835 *"Bruce W. Forsberg" <[email protected]>*
14836
14837 * ./config script fixes.
14838
14839 *Ulf Moeller, Richard Levitte*
14840
14841 * Fix 'openssl passwd -1'.
14842
14843 *Bodo Moeller*
14844
14845 * Change PKCS12_key_gen_asc() so it can cope with non null
14846 terminated strings whose length is passed in the passlen
14847 parameter, for example from PEM callbacks. This was done
14848 by adding an extra length parameter to asc2uni().
14849
14850 *Steve Henson, reported by <[email protected]>*
14851
14852 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
14853 call failed, free the DSA structure.
14854
14855 *Bodo Moeller*
14856
14857 * Fix to uni2asc() to cope with zero length Unicode strings.
14858 These are present in some PKCS#12 files.
14859
14860 *Steve Henson*
14861
14862 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
14863 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
14864 when writing a 32767 byte record.
14865
14866 *Bodo Moeller; problem reported by Eric Day <[email protected]>*
14867
14868 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c),
14869 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`.
14870
14871 (RSA objects have a reference count access to which is protected
14872 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
14873 so they are meant to be shared between threads.)
14874 *Bodo Moeller, Geoff Thorpe; original patch submitted by
14875 "Reddie, Steven" <[email protected]>*
14876
14877 * Fix a deadlock in CRYPTO_mem_leaks().
14878
14879 *Bodo Moeller*
14880
14881 * Use better test patterns in bntest.
14882
14883 *Ulf Möller*
14884
14885 * rand_win.c fix for Borland C.
14886
14887 *Ulf Möller*
14888
14889 * BN_rshift bugfix for n == 0.
14890
14891 *Bodo Moeller*
14892
14893 * Add a 'bctest' script that checks for some known 'bc' bugs
14894 so that 'make test' does not abort just because 'bc' is broken.
14895
14896 *Bodo Moeller*
14897
14898 * Store verify_result within SSL_SESSION also for client side to
14899 avoid potential security hole. (Re-used sessions on the client side
14900 always resulted in verify_result==X509_V_OK, not using the original
14901 result of the server certificate verification.)
14902
14903 *Lutz Jaenicke*
14904
14905 * Fix ssl3_pending: If the record in s->s3->rrec is not of type
14906 SSL3_RT_APPLICATION_DATA, return 0.
14907 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
14908
14909 *Bodo Moeller*
14910
14911 * Fix SSL_peek:
14912 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
14913 releases, have been re-implemented by renaming the previous
14914 implementations of ssl2_read and ssl3_read to ssl2_read_internal
14915 and ssl3_read_internal, respectively, and adding 'peek' parameters
14916 to them. The new ssl[23]_{read,peek} functions are calls to
14917 ssl[23]_read_internal with the 'peek' flag set appropriately.
14918 A 'peek' parameter has also been added to ssl3_read_bytes, which
14919 does the actual work for ssl3_read_internal.
14920
14921 *Bodo Moeller*
14922
14923 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
14924 the method-specific "init()" handler. Also clean up ex_data after
14925 calling the method-specific "finish()" handler. Previously, this was
14926 happening the other way round.
14927
14928 *Geoff Thorpe*
14929
14930 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
14931 The previous value, 12, was not always sufficient for BN_mod_exp().
14932
14933 *Bodo Moeller*
14934
14935 * Make sure that shared libraries get the internal name engine with
14936 the full version number and not just 0. This should mark the
14937 shared libraries as not backward compatible. Of course, this should
14938 be changed again when we can guarantee backward binary compatibility.
14939
14940 *Richard Levitte*
14941
14942 * Fix typo in get_cert_by_subject() in by_dir.c
14943
14944 *Jean-Marc Desperrier <[email protected]>*
14945
14946 * Rework the system to generate shared libraries:
14947
14948 - Make note of the expected extension for the shared libraries and
14949 if there is a need for symbolic links from for example libcrypto.so.0
14950 to libcrypto.so.0.9.7. There is extended info in Configure for
14951 that.
14952
14953 - Make as few rebuilds of the shared libraries as possible.
14954
14955 - Still avoid linking the OpenSSL programs with the shared libraries.
14956
14957 - When installing, install the shared libraries separately from the
14958 static ones.
14959
14960 *Richard Levitte*
14961
14962 * Fix SSL_CTX_set_read_ahead macro to actually use its argument.
14963
14964 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
14965 and not in SSL_clear because the latter is also used by the
14966 accept/connect functions; previously, the settings made by
14967 SSL_set_read_ahead would be lost during the handshake.
14968
14969 *Bodo Moeller; problems reported by Anders Gertz <[email protected]>*
14970
14971 * Correct util/mkdef.pl to be selective about disabled algorithms.
14972 Previously, it would create entries for disabled algorithms no
14973 matter what.
14974
14975 *Richard Levitte*
14976
14977 * Added several new manual pages for SSL_* function.
14978
14979 *Lutz Jaenicke*
14980
14981### Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
14982
14983 * In ssl23_get_client_hello, generate an error message when faced
14984 with an initial SSL 3.0/TLS record that is too small to contain the
14985 first two bytes of the ClientHello message, i.e. client_version.
14986 (Note that this is a pathologic case that probably has never happened
14987 in real life.) The previous approach was to use the version number
14988 from the record header as a substitute; but our protocol choice
14989 should not depend on that one because it is not authenticated
14990 by the Finished messages.
14991
14992 *Bodo Moeller*
14993
14994 * More robust randomness gathering functions for Windows.
14995
14996 *Jeffrey Altman <[email protected]>*
14997
14998 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
14999 not set then we don't setup the error code for issuer check errors
15000 to avoid possibly overwriting other errors which the callback does
15001 handle. If an application does set the flag then we assume it knows
15002 what it is doing and can handle the new informational codes
15003 appropriately.
15004
15005 *Steve Henson*
15006
15007 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
15008 a general "ANY" type, as such it should be able to decode anything
15009 including tagged types. However it didn't check the class so it would
15010 wrongly interpret tagged types in the same way as their universal
15011 counterpart and unknown types were just rejected. Changed so that the
15012 tagged and unknown types are handled in the same way as a SEQUENCE:
15013 that is the encoding is stored intact. There is also a new type
15014 "V_ASN1_OTHER" which is used when the class is not universal, in this
15015 case we have no idea what the actual type is so we just lump them all
15016 together.
15017
15018 *Steve Henson*
15019
15020 * On VMS, stdout may very well lead to a file that is written to
15021 in a record-oriented fashion. That means that every write() will
15022 write a separate record, which will be read separately by the
15023 programs trying to read from it. This can be very confusing.
15024
15025 The solution is to put a BIO filter in the way that will buffer
15026 text until a linefeed is reached, and then write everything a
15027 line at a time, so every record written will be an actual line,
15028 not chunks of lines and not (usually doesn't happen, but I've
15029 seen it once) several lines in one record. BIO_f_linebuffer() is
15030 the answer.
15031
15032 Currently, it's a VMS-only method, because that's where it has
15033 been tested well enough.
15034
15035 *Richard Levitte*
15036
15037 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
15038 it can return incorrect results.
15039 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
15040 but it was in 0.9.6-beta[12].)
15041
15042 *Bodo Moeller*
15043
15044 * Disable the check for content being present when verifying detached
15045 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
15046 include zero length content when signing messages.
15047
15048 *Steve Henson*
15049
15050 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
15051 BIO_ctrl (for BIO pairs).
15052
15053 *Bodo Möller*
15054
15055 * Add DSO method for VMS.
15056
15057 *Richard Levitte*
15058
15059 * Bug fix: Montgomery multiplication could produce results with the
15060 wrong sign.
15061
15062 *Ulf Möller*
15063
15064 * Add RPM specification openssl.spec and modify it to build three
15065 packages. The default package contains applications, application
15066 documentation and run-time libraries. The devel package contains
15067 include files, static libraries and function documentation. The
15068 doc package contains the contents of the doc directory. The original
15069 openssl.spec was provided by Damien Miller <[email protected]>.
15070
15071 *Richard Levitte*
15072
15073 * Add a large number of documentation files for many SSL routines.
15074
15075 *Lutz Jaenicke <[email protected]>*
15076
15077 * Add a configuration entry for Sony News 4.
15078
15079 *NAKAJI Hiroyuki <[email protected]>*
15080
15081 * Don't set the two most significant bits to one when generating a
15082 random number < q in the DSA library.
15083
15084 *Ulf Möller*
15085
15086 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
15087 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
15088 the underlying transport is blocking) if a handshake took place.
15089 (The default behaviour is needed by applications such as s_client
15090 and s_server that use select() to determine when to use SSL_read;
15091 but for applications that know in advance when to expect data, it
15092 just makes things more complicated.)
15093
15094 *Bodo Moeller*
15095
15096 * Add RAND_egd_bytes(), which gives control over the number of bytes read
15097 from EGD.
15098
15099 *Ben Laurie*
15100
15101 * Add a few more EBCDIC conditionals that make `req` and `x509`
15102 work better on such systems.
15103
15104 *Martin Kraemer <[email protected]>*
15105
15106 * Add two demo programs for PKCS12_parse() and PKCS12_create().
15107 Update PKCS12_parse() so it copies the friendlyName and the
15108 keyid to the certificates aux info.
15109
15110 *Steve Henson*
15111
15112 * Fix bug in PKCS7_verify() which caused an infinite loop
15113 if there was more than one signature.
15114
15115 *Sven Uszpelkat <[email protected]>*
15116
15117 * Major change in util/mkdef.pl to include extra information
15118 about each symbol, as well as presenting variables as well
15119 as functions. This change means that there's n more need
15120 to rebuild the .num files when some algorithms are excluded.
15121
15122 *Richard Levitte*
15123
15124 * Allow the verify time to be set by an application,
15125 rather than always using the current time.
15126
15127 *Steve Henson*
15128
15129 * Phase 2 verify code reorganisation. The certificate
15130 verify code now looks up an issuer certificate by a
15131 number of criteria: subject name, authority key id
15132 and key usage. It also verifies self signed certificates
15133 by the same criteria. The main comparison function is
15134 X509_check_issued() which performs these checks.
15135
15136 Lot of changes were necessary in order to support this
15137 without completely rewriting the lookup code.
15138
15139 Authority and subject key identifier are now cached.
15140
15141 The LHASH 'certs' is X509_STORE has now been replaced
15142 by a STACK_OF(X509_OBJECT). This is mainly because an
15143 LHASH can't store or retrieve multiple objects with
15144 the same hash value.
15145
15146 As a result various functions (which were all internal
15147 use only) have changed to handle the new X509_STORE
15148 structure. This will break anything that messed round
15149 with X509_STORE internally.
15150
15151 The functions X509_STORE_add_cert() now checks for an
15152 exact match, rather than just subject name.
15153
15154 The X509_STORE API doesn't directly support the retrieval
15155 of multiple certificates matching a given criteria, however
15156 this can be worked round by performing a lookup first
15157 (which will fill the cache with candidate certificates)
15158 and then examining the cache for matches. This is probably
15159 the best we can do without throwing out X509_LOOKUP
15160 entirely (maybe later...).
15161
15162 The X509_VERIFY_CTX structure has been enhanced considerably.
15163
15164 All certificate lookup operations now go via a get_issuer()
15165 callback. Although this currently uses an X509_STORE it
15166 can be replaced by custom lookups. This is a simple way
15167 to bypass the X509_STORE hackery necessary to make this
15168 work and makes it possible to use more efficient techniques
15169 in future. A very simple version which uses a simple
15170 STACK for its trusted certificate store is also provided
15171 using X509_STORE_CTX_trusted_stack().
15172
15173 The verify_cb() and verify() callbacks now have equivalents
15174 in the X509_STORE_CTX structure.
15175
15176 X509_STORE_CTX also has a 'flags' field which can be used
15177 to customise the verify behaviour.
15178
15179 *Steve Henson*
15180
15181 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
15182 excludes S/MIME capabilities.
15183
15184 *Steve Henson*
15185
15186 * When a certificate request is read in keep a copy of the
15187 original encoding of the signed data and use it when outputting
15188 again. Signatures then use the original encoding rather than
15189 a decoded, encoded version which may cause problems if the
15190 request is improperly encoded.
15191
15192 *Steve Henson*
15193
15194 * For consistency with other BIO_puts implementations, call
15195 buffer_write(b, ...) directly in buffer_puts instead of calling
15196 BIO_write(b, ...).
15197
15198 In BIO_puts, increment b->num_write as in BIO_write.
15199
15200 *[email protected]*
15201
15202 * Fix BN_mul_word for the case where the word is 0. (We have to use
15203 BN_zero, we may not return a BIGNUM with an array consisting of
15204 words set to zero.)
15205
15206 *Bodo Moeller*
15207
15208 * Avoid calling abort() from within the library when problems are
15209 detected, except if preprocessor symbols have been defined
15210 (such as REF_CHECK, BN_DEBUG etc.).
15211
15212 *Bodo Moeller*
15213
15214 * New openssl application 'rsautl'. This utility can be
15215 used for low-level RSA operations. DER public key
15216 BIO/fp routines also added.
15217
15218 *Steve Henson*
15219
15220 * New Configure entry and patches for compiling on QNX 4.
15221
15222 *Andreas Schneider <[email protected]>*
15223
15224 * A demo state-machine implementation was sponsored by
15225 Nuron (<http://www.nuron.com/>) and is now available in
15226 demos/state_machine.
15227
15228 *Ben Laurie*
15229
15230 * New options added to the 'dgst' utility for signature
15231 generation and verification.
15232
15233 *Steve Henson*
15234
15235 * Unrecognized PKCS#7 content types are now handled via a
15236 catch all ASN1_TYPE structure. This allows unsupported
15237 types to be stored as a "blob" and an application can
15238 encode and decode it manually.
15239
15240 *Steve Henson*
15241
15242 * Fix various signed/unsigned issues to make a_strex.c
15243 compile under VC++.
15244
15245 *Oscar Jacobsson <[email protected]>*
15246
15247 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
15248 length if passed a buffer. ASN1_INTEGER_to_BN failed
15249 if passed a NULL BN and its argument was negative.
15250
15251 *Steve Henson, pointed out by Sven Heiberg <[email protected]>*
15252
15253 * Modification to PKCS#7 encoding routines to output definite
15254 length encoding. Since currently the whole structures are in
15255 memory there's not real point in using indefinite length
15256 constructed encoding. However if OpenSSL is compiled with
15257 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
15258
15259 *Steve Henson*
15260
15261 * Added BIO_vprintf() and BIO_vsnprintf().
15262
15263 *Richard Levitte*
15264
15265 * Added more prefixes to parse for in the strings written
15266 through a logging bio, to cover all the levels that are available
15267 through syslog. The prefixes are now:
15268
15269 PANIC, EMERG, EMR => LOG_EMERG
15270 ALERT, ALR => LOG_ALERT
15271 CRIT, CRI => LOG_CRIT
15272 ERROR, ERR => LOG_ERR
15273 WARNING, WARN, WAR => LOG_WARNING
15274 NOTICE, NOTE, NOT => LOG_NOTICE
15275 INFO, INF => LOG_INFO
15276 DEBUG, DBG => LOG_DEBUG
15277
15278 and as before, if none of those prefixes are present at the
15279 beginning of the string, LOG_ERR is chosen.
15280
15281 On Win32, the `LOG_*` levels are mapped according to this:
15282
15283 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
15284 LOG_WARNING => EVENTLOG_WARNING_TYPE
15285 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
15286
15287 *Richard Levitte*
15288
15289 * Made it possible to reconfigure with just the configuration
15290 argument "reconf" or "reconfigure". The command line arguments
15291 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
15292 and are retrieved from there when reconfiguring.
15293
15294 *Richard Levitte*
15295
15296 * MD4 implemented.
15297
15298 *Assar Westerlund <[email protected]>, Richard Levitte*
15299
15300 * Add the arguments -CAfile and -CApath to the pkcs12 utility.
15301
15302 *Richard Levitte*
15303
15304 * The obj_dat.pl script was messing up the sorting of object
15305 names. The reason was that it compared the quoted version
15306 of strings as a result "OCSP" > "OCSP Signing" because
15307 " > SPACE. Changed script to store unquoted versions of
15308 names and add quotes on output. It was also omitting some
15309 names from the lookup table if they were given a default
15310 value (that is if SN is missing it is given the same
15311 value as LN and vice versa), these are now added on the
15312 grounds that if an object has a name we should be able to
15313 look it up. Finally added warning output when duplicate
15314 short or long names are found.
15315
15316 *Steve Henson*
15317
15318 * Changes needed for Tandem NSK.
15319
15320 *Scott Uroff <[email protected]>*
15321
15322 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in
15323 RSA_padding_check_SSLv23(), special padding was never detected
15324 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
15325 version rollback attacks was not effective.
15326
15327 In s23_clnt.c, don't use special rollback-attack detection padding
15328 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
15329 client; similarly, in s23_srvr.c, don't do the rollback check if
15330 SSL 2.0 is the only protocol enabled in the server.
15331
15332 *Bodo Moeller*
15333
15334 * Make it possible to get hexdumps of unprintable data with 'openssl
15335 asn1parse'. By implication, the functions ASN1_parse_dump() and
15336 BIO_dump_indent() are added.
15337
15338 *Richard Levitte*
15339
15340 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
15341 these print out strings and name structures based on various
15342 flags including RFC2253 support and proper handling of
15343 multibyte characters. Added options to the 'x509' utility
15344 to allow the various flags to be set.
15345
15346 *Steve Henson*
15347
15348 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
15349 Also change the functions X509_cmp_current_time() and
15350 X509_gmtime_adj() work with an ASN1_TIME structure,
15351 this will enable certificates using GeneralizedTime in validity
15352 dates to be checked.
15353
15354 *Steve Henson*
15355
15356 * Make the NEG_PUBKEY_BUG code (which tolerates invalid
15357 negative public key encodings) on by default,
15358 NO_NEG_PUBKEY_BUG can be set to disable it.
15359
15360 *Steve Henson*
15361
15362 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
15363 content octets. An i2c_ASN1_OBJECT is unnecessary because
15364 the encoding can be trivially obtained from the structure.
15365
15366 *Steve Henson*
15367
15368 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`),
15369 not read locks (`CRYPTO_r_[un]lock`).
15370
15371 *Bodo Moeller*
15372
15373 * A first attempt at creating official support for shared
15374 libraries through configuration. I've kept it so the
15375 default is static libraries only, and the OpenSSL programs
15376 are always statically linked for now, but there are
15377 preparations for dynamic linking in place.
15378 This has been tested on Linux and Tru64.
15379
15380 *Richard Levitte*
15381
15382 * Randomness polling function for Win9x, as described in:
15383 Peter Gutmann, Software Generation of Practically Strong
15384 Random Numbers.
15385
15386 *Ulf Möller*
15387
15388 * Fix so PRNG is seeded in req if using an already existing
15389 DSA key.
15390
15391 *Steve Henson*
15392
15393 * New options to smime application. -inform and -outform
15394 allow alternative formats for the S/MIME message including
15395 PEM and DER. The -content option allows the content to be
15396 specified separately. This should allow things like Netscape
15397 form signing output easier to verify.
15398
15399 *Steve Henson*
15400
15401 * Fix the ASN1 encoding of tags using the 'long form'.
15402
15403 *Steve Henson*
15404
15405 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT
15406 STRING types. These convert content octets to and from the
15407 underlying type. The actual tag and length octets are
15408 already assumed to have been read in and checked. These
15409 are needed because all other string types have virtually
15410 identical handling apart from the tag. By having versions
15411 of the ASN1 functions that just operate on content octets
15412 IMPLICIT tagging can be handled properly. It also allows
15413 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
15414 and ASN1_INTEGER are identical apart from the tag.
15415
15416 *Steve Henson*
15417
15418 * Change the handling of OID objects as follows:
15419
15420 - New object identifiers are inserted in objects.txt, following
15421 the syntax given in [crypto/objects/README.md](crypto/objects/README.md).
15422 - objects.pl is used to process obj_mac.num and create a new
15423 obj_mac.h.
15424 - obj_dat.pl is used to create a new obj_dat.h, using the data in
15425 obj_mac.h.
15426
15427 This is currently kind of a hack, and the perl code in objects.pl
15428 isn't very elegant, but it works as I intended. The simplest way
15429 to check that it worked correctly is to look in obj_dat.h and
15430 check the array nid_objs and make sure the objects haven't moved
15431 around (this is important!). Additions are OK, as well as
15432 consistent name changes.
15433
15434 *Richard Levitte*
15435
15436 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
15437
15438 *Bodo Moeller*
15439
15440 * Addition of the command line parameter '-rand file' to 'openssl req'.
15441 The given file adds to whatever has already been seeded into the
15442 random pool through the RANDFILE configuration file option or
15443 environment variable, or the default random state file.
15444
15445 *Richard Levitte*
15446
15447 * mkstack.pl now sorts each macro group into lexical order.
15448 Previously the output order depended on the order the files
15449 appeared in the directory, resulting in needless rewriting
15450 of safestack.h .
15451
15452 *Steve Henson*
15453
15454 * Patches to make OpenSSL compile under Win32 again. Mostly
15455 work arounds for the VC++ problem that it treats func() as
15456 func(void). Also stripped out the parts of mkdef.pl that
15457 added extra typesafe functions: these no longer exist.
15458
15459 *Steve Henson*
15460
15461 * Reorganisation of the stack code. The macros are now all
15462 collected in safestack.h . Each macro is defined in terms of
15463 a "stack macro" of the form `SKM_<name>(type, a, b)`. The
15464 DEBUG_SAFESTACK is now handled in terms of function casts,
15465 this has the advantage of retaining type safety without the
15466 use of additional functions. If DEBUG_SAFESTACK is not defined
15467 then the non typesafe macros are used instead. Also modified the
15468 mkstack.pl script to handle the new form. Needs testing to see
15469 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
15470 the default if no major problems. Similar behaviour for ASN1_SET_OF
15471 and PKCS12_STACK_OF.
15472
15473 *Steve Henson*
15474
15475 * When some versions of IIS use the 'NET' form of private key the
15476 key derivation algorithm is different. Normally MD5(password) is
15477 used as a 128 bit RC4 key. In the modified case
15478 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
15479 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
15480 as the old Netscape_RSA functions except they have an additional
15481 'sgckey' parameter which uses the modified algorithm. Also added
15482 an -sgckey command line option to the rsa utility. Thanks to
15483 Adrian Peck <[email protected]> for posting details of the modified
15484 algorithm to openssl-dev.
15485
15486 *Steve Henson*
15487
15488 * The evp_local.h macros were using 'c.##kname' which resulted in
15489 invalid expansion on some systems (SCO 5.0.5 for example).
15490 Corrected to 'c.kname'.
15491
15492 *Phillip Porch <[email protected]>*
15493
15494 * New X509_get1_email() and X509_REQ_get1_email() functions that return
15495 a STACK of email addresses from a certificate or request, these look
15496 in the subject name and the subject alternative name extensions and
15497 omit any duplicate addresses.
15498
15499 *Steve Henson*
15500
15501 * Re-implement BN_mod_exp2_mont using independent (and larger) windows.
15502 This makes DSA verification about 2 % faster.
15503
15504 *Bodo Moeller*
15505
15506 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5
15507 (meaning that now 2^5 values will be precomputed, which is only 4 KB
15508 plus overhead for 1024 bit moduli).
15509 This makes exponentiations about 0.5 % faster for 1024 bit
15510 exponents (as measured by "openssl speed rsa2048").
15511
15512 *Bodo Moeller*
15513
15514 * Rename memory handling macros to avoid conflicts with other
15515 software:
15516 Malloc => OPENSSL_malloc
15517 Malloc_locked => OPENSSL_malloc_locked
15518 Realloc => OPENSSL_realloc
15519 Free => OPENSSL_free
15520
15521 *Richard Levitte*
15522
15523 * New function BN_mod_exp_mont_word for small bases (roughly 15%
15524 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
15525
15526 *Bodo Moeller*
15527
15528 * CygWin32 support.
15529
15530 *John Jarvie <[email protected]>*
15531
15532 * The type-safe stack code has been rejigged. It is now only compiled
15533 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
15534 by default all type-specific stack functions are "#define"d back to
15535 standard stack functions. This results in more streamlined output
15536 but retains the type-safety checking possibilities of the original
15537 approach.
15538
15539 *Geoff Thorpe*
15540
15541 * The STACK code has been cleaned up, and certain type declarations
15542 that didn't make a lot of sense have been brought in line. This has
15543 also involved a cleanup of sorts in safestack.h to more correctly
15544 map type-safe stack functions onto their plain stack counterparts.
15545 This work has also resulted in a variety of "const"ifications of
15546 lots of the code, especially `_cmp` operations which should normally
15547 be prototyped with "const" parameters anyway.
15548
15549 *Geoff Thorpe*
15550
15551 * When generating bytes for the first time in md_rand.c, 'stir the pool'
15552 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
15553 (The PRNG state consists of two parts, the large pool 'state' and 'md',
15554 where all of 'md' is used each time the PRNG is used, but 'state'
15555 is used only indexed by a cyclic counter. As entropy may not be
15556 well distributed from the beginning, 'md' is important as a
15557 chaining variable. However, the output function chains only half
15558 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
15559 all of 'md', and seeding with STATE_SIZE dummy bytes will result
15560 in all of 'state' being rewritten, with the new values depending
15561 on virtually all of 'md'. This overcomes the 80 bit limitation.)
15562
15563 *Bodo Moeller*
15564
15565 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
15566 the handshake is continued after ssl_verify_cert_chain();
15567 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
15568 can lead to 'unexplainable' connection aborts later.
15569
15570 *Bodo Moeller; problem tracked down by Lutz Jaenicke*
15571
15572 * Major EVP API cipher revision.
15573 Add hooks for extra EVP features. This allows various cipher
15574 parameters to be set in the EVP interface. Support added for variable
15575 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
15576 setting of RC2 and RC5 parameters.
15577
15578 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
15579 ciphers.
15580
15581 Remove lots of duplicated code from the EVP library. For example *every*
15582 cipher init() function handles the 'iv' in the same way according to the
15583 cipher mode. They also all do nothing if the 'key' parameter is NULL and
15584 for CFB and OFB modes they zero ctx->num.
15585
15586 New functionality allows removal of S/MIME code RC2 hack.
15587
15588 Most of the routines have the same form and so can be declared in terms
15589 of macros.
15590
15591 By shifting this to the top level EVP_CipherInit() it can be removed from
15592 all individual ciphers. If the cipher wants to handle IVs or keys
15593 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
15594 flags.
15595
15596 Change lots of functions like EVP_EncryptUpdate() to now return a
15597 value: although software versions of the algorithms cannot fail
15598 any installed hardware versions can.
15599
15600 *Steve Henson*
15601
15602 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
15603 this option is set, tolerate broken clients that send the negotiated
15604 protocol version number instead of the requested protocol version
15605 number.
15606
15607 *Bodo Moeller*
15608
15609 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag;
15610 i.e. non-zero for export ciphersuites, zero otherwise.
15611 Previous versions had this flag inverted, inconsistent with
15612 rsa_tmp_cb (..._TMP_RSA_CB).
15613
15614 *Bodo Moeller; problem reported by Amit Chopra*
15615
15616 * Add missing DSA library text string. Work around for some IIS
15617 key files with invalid SEQUENCE encoding.
15618
15619 *Steve Henson*
15620
15621 * Add a document (doc/standards.txt) that list all kinds of standards
15622 and so on that are implemented in OpenSSL.
15623
15624 *Richard Levitte*
15625
15626 * Enhance c_rehash script. Old version would mishandle certificates
15627 with the same subject name hash and wouldn't handle CRLs at all.
15628 Added -fingerprint option to crl utility, to support new c_rehash
15629 features.
15630
15631 *Steve Henson*
15632
15633 * Eliminate non-ANSI declarations in crypto.h and stack.h.
15634
15635 *Ulf Möller*
15636
15637 * Fix for SSL server purpose checking. Server checking was
15638 rejecting certificates which had extended key usage present
15639 but no ssl client purpose.
15640
15641 *Steve Henson, reported by Rene Grosser <[email protected]>*
15642
15643 * Make PKCS#12 code work with no password. The PKCS#12 spec
15644 is a little unclear about how a blank password is handled.
15645 Since the password in encoded as a BMPString with terminating
15646 double NULL a zero length password would end up as just the
15647 double NULL. However no password at all is different and is
15648 handled differently in the PKCS#12 key generation code. NS
15649 treats a blank password as zero length. MSIE treats it as no
15650 password on export: but it will try both on import. We now do
15651 the same: PKCS12_parse() tries zero length and no password if
15652 the password is set to "" or NULL (NULL is now a valid password:
15653 it wasn't before) as does the pkcs12 application.
15654
15655 *Steve Henson*
15656
15657 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use
15658 perror when PEM_read_bio_X509_REQ fails, the error message must
15659 be obtained from the error queue.
15660
15661 *Bodo Moeller*
15662
15663 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
15664 it in ERR_remove_state if appropriate, and change ERR_get_state
15665 accordingly to avoid race conditions (this is necessary because
15666 thread_hash is no longer constant once set).
15667
15668 *Bodo Moeller*
15669
15670 * Bugfix for linux-elf makefile.one.
15671
15672 *Ulf Möller*
15673
15674 * RSA_get_default_method() will now cause a default
15675 RSA_METHOD to be chosen if one doesn't exist already.
15676 Previously this was only set during a call to RSA_new()
15677 or RSA_new_method(NULL) meaning it was possible for
15678 RSA_get_default_method() to return NULL.
15679
15680 *Geoff Thorpe*
15681
15682 * Added native name translation to the existing DSO code
15683 that will convert (if the flag to do so is set) filenames
15684 that are sufficiently small and have no path information
15685 into a canonical native form. Eg. "blah" converted to
15686 "libblah.so" or "blah.dll" etc.
15687
15688 *Geoff Thorpe*
15689
15690 * New function ERR_error_string_n(e, buf, len) which is like
15691 ERR_error_string(e, buf), but writes at most 'len' bytes
15692 including the 0 terminator. For ERR_error_string_n, 'buf'
15693 may not be NULL.
15694
15695 *Damien Miller <[email protected]>, Bodo Moeller*
15696
15697 * CONF library reworked to become more general. A new CONF
15698 configuration file reader "class" is implemented as well as a
15699 new functions (`NCONF_*`, for "New CONF") to handle it. The now
15700 old `CONF_*` functions are still there, but are reimplemented to
15701 work in terms of the new functions. Also, a set of functions
15702 to handle the internal storage of the configuration data is
15703 provided to make it easier to write new configuration file
15704 reader "classes" (I can definitely see something reading a
15705 configuration file in XML format, for example), called `_CONF_*`,
15706 or "the configuration storage API"...
15707
15708 The new configuration file reading functions are:
15709
15710 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
15711 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
15712
15713 NCONF_default, NCONF_WIN32
15714
15715 NCONF_dump_fp, NCONF_dump_bio
15716
15717 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
15718 NCONF_new creates a new CONF object. This works in the same way
15719 as other interfaces in OpenSSL, like the BIO interface.
15720 `NCONF_dump_*` dump the internal storage of the configuration file,
15721 which is useful for debugging. All other functions take the same
15722 arguments as the old `CONF_*` functions with the exception of the
15723 first that must be a `CONF *` instead of a `LHASH *`.
15724
15725 To make it easier to use the new classes with the old `CONF_*` functions,
15726 the function CONF_set_default_method is provided.
15727
15728 *Richard Levitte*
15729
15730 * Add '-tls1' option to 'openssl ciphers', which was already
15731 mentioned in the documentation but had not been implemented.
15732 (This option is not yet really useful because even the additional
15733 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
15734
15735 *Bodo Moeller*
15736
15737 * Initial DSO code added into libcrypto for letting OpenSSL (and
15738 OpenSSL-based applications) load shared libraries and bind to
15739 them in a portable way.
15740
15741 *Geoff Thorpe, with contributions from Richard Levitte*
15742
15743### Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
15744
15745 * Make sure _lrotl and _lrotr are only used with MSVC.
15746
15747 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
15748 (the default implementation of RAND_status).
15749
15750 * Rename openssl x509 option '-crlext', which was added in 0.9.5,
15751 to '-clrext' (= clear extensions), as intended and documented.
15752 *Bodo Moeller; inconsistency pointed out by Michael Attili
15753 <[email protected]>*
15754
15755 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length
15756 was larger than the MD block size.
15757
15758 *Steve Henson, pointed out by Yost William <[email protected]>*
15759
15760 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
15761 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
15762 using the passed key: if the passed key was a private key the result
15763 of X509_print(), for example, would be to print out all the private key
15764 components.
15765
15766 *Steve Henson*
15767
15768 * des_quad_cksum() byte order bug fix.
15769 *Ulf Möller, using the problem description in krb4-0.9.7, where
15770 the solution is attributed to Derrick J Brashear <[email protected]>*
15771
15772 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
15773 discouraged.
15774
15775 *Steve Henson, pointed out by Brian Korver <[email protected]>*
15776
15777 * For easily testing in shell scripts whether some command
15778 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
15779 returns with exit code 0 iff no command of the given name is available.
15780 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
15781 the output goes to stdout and nothing is printed to stderr.
15782 Additional arguments are always ignored.
15783
15784 Since for each cipher there is a command of the same name,
15785 the 'no-cipher' compilation switches can be tested this way.
15786
15787 ('openssl no-XXX' is not able to detect pseudo-commands such
15788 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
15789
15790 *Bodo Moeller*
15791
15792 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
15793
15794 *Bodo Moeller*
15795
15796 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
15797 is set; it will be thrown away anyway because each handshake creates
15798 its own key.
15799 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
15800 to parameters -- in previous versions (since OpenSSL 0.9.3) the
15801 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
15802 you effectively got SSL_OP_SINGLE_DH_USE when using this macro.
15803
15804 *Bodo Moeller*
15805
15806 * New s_client option -ign_eof: EOF at stdin is ignored, and
15807 'Q' and 'R' lose their special meanings (quit/renegotiate).
15808 This is part of what -quiet does; unlike -quiet, -ign_eof
15809 does not suppress any output.
15810
15811 *Richard Levitte*
15812
15813 * Add compatibility options to the purpose and trust code. The
15814 purpose X509_PURPOSE_ANY is "any purpose" which automatically
15815 accepts a certificate or CA, this was the previous behaviour,
15816 with all the associated security issues.
15817
15818 X509_TRUST_COMPAT is the old trust behaviour: only and
15819 automatically trust self signed roots in certificate store. A
15820 new trust setting X509_TRUST_DEFAULT is used to specify that
15821 a purpose has no associated trust setting and it should instead
15822 use the value in the default purpose.
15823
15824 *Steve Henson*
15825
15826 * Fix the PKCS#8 DSA private key code so it decodes keys again
15827 and fix a memory leak.
15828
15829 *Steve Henson*
15830
15831 * In util/mkerr.pl (which implements 'make errors'), preserve
15832 reason strings from the previous version of the .c file, as
15833 the default to have only downcase letters (and digits) in
15834 automatically generated reasons codes is not always appropriate.
15835
15836 *Bodo Moeller*
15837
15838 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
15839 using strerror. Previously, ERR_reason_error_string() returned
15840 library names as reason strings for SYSerr; but SYSerr is a special
15841 case where small numbers are errno values, not library numbers.
15842
15843 *Bodo Moeller*
15844
15845 * Add '-dsaparam' option to 'openssl dhparam' application. This
15846 converts DSA parameters into DH parameters. (When creating parameters,
15847 DSA_generate_parameters is used.)
15848
15849 *Bodo Moeller*
15850
15851 * Include 'length' (recommended exponent length) in C code generated
15852 by 'openssl dhparam -C'.
15853
15854 *Bodo Moeller*
15855
15856 * The second argument to set_label in perlasm was already being used
15857 so couldn't be used as a "file scope" flag. Moved to third argument
15858 which was free.
15859
15860 *Steve Henson*
15861
15862 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
15863 instead of RAND_bytes for encryption IVs and salts.
15864
15865 *Bodo Moeller*
15866
15867 * Include RAND_status() into RAND_METHOD instead of implementing
15868 it only for md_rand.c Otherwise replacing the PRNG by calling
15869 RAND_set_rand_method would be impossible.
15870
15871 *Bodo Moeller*
15872
15873 * Don't let DSA_generate_key() enter an infinite loop if the random
15874 number generation fails.
15875
15876 *Bodo Moeller*
15877
15878 * New 'rand' application for creating pseudo-random output.
15879
15880 *Bodo Moeller*
15881
15882 * Added configuration support for Linux/IA64
15883
15884 *Rolf Haberrecker <[email protected]>*
15885
15886 * Assembler module support for Mingw32.
15887
15888 *Ulf Möller*
15889
15890 * Shared library support for HPUX (in shlib/).
15891
15892 *Lutz Jaenicke <[email protected]> and Anonymous*
15893
15894 * Shared library support for Solaris gcc.
15895
15896 *Lutz Behnke <[email protected]>*
15897
15898### Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
15899
15900 * PKCS7_encrypt() was adding text MIME headers twice because they
15901 were added manually and by SMIME_crlf_copy().
15902
15903 *Steve Henson*
15904
15905 * In bntest.c don't call BN_rand with zero bits argument.
15906
15907 *Steve Henson, pointed out by Andrew W. Gray <[email protected]>*
15908
15909 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
15910 case was implemented. This caused BN_div_recp() to fail occasionally.
15911
15912 *Ulf Möller*
15913
15914 * Add an optional second argument to the set_label() in the perl
15915 assembly language builder. If this argument exists and is set
15916 to 1 it signals that the assembler should use a symbol whose
15917 scope is the entire file, not just the current function. This
15918 is needed with MASM which uses the format label:: for this scope.
15919
15920 *Steve Henson, pointed out by Peter Runestig <[email protected]>*
15921
15922 * Change the ASN1 types so they are typedefs by default. Before
15923 almost all types were #define'd to ASN1_STRING which was causing
15924 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
15925 for example.
15926
15927 *Steve Henson*
15928
15929 * Change names of new functions to the new get1/get0 naming
15930 convention: After 'get1', the caller owns a reference count
15931 and has to call `..._free`; 'get0' returns a pointer to some
15932 data structure without incrementing reference counters.
15933 (Some of the existing 'get' functions increment a reference
15934 counter, some don't.)
15935 Similarly, 'set1' and 'add1' functions increase reference
15936 counters or duplicate objects.
15937
15938 *Steve Henson*
15939
15940 * Allow for the possibility of temp RSA key generation failure:
15941 the code used to assume it always worked and crashed on failure.
15942
15943 *Steve Henson*
15944
15945 * Fix potential buffer overrun problem in BIO_printf().
15946 *Ulf Möller, using public domain code by Patrick Powell; problem
15947 pointed out by David Sacerdote <[email protected]>*
15948
15949 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions
15950 RAND_egd() and RAND_status(). In the command line application,
15951 the EGD socket can be specified like a seed file using RANDFILE
15952 or -rand.
15953
15954 *Ulf Möller*
15955
15956 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
15957 Some CAs (e.g. Verisign) distribute certificates in this form.
15958
15959 *Steve Henson*
15960
15961 * Remove the SSL_ALLOW_ADH compile option and set the default cipher
15962 list to exclude them. This means that no special compilation option
15963 is needed to use anonymous DH: it just needs to be included in the
15964 cipher list.
15965
15966 *Steve Henson*
15967
15968 * Change the EVP_MD_CTX_type macro so its meaning consistent with
15969 EVP_MD_type. The old functionality is available in a new macro called
15970 EVP_MD_md(). Change code that uses it and update docs.
15971
15972 *Steve Henson*
15973
15974 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions
15975 where the `void *` argument is replaced by a function pointer argument.
15976 Previously `void *` was abused to point to functions, which works on
15977 many platforms, but is not correct. As these functions are usually
15978 called by macros defined in OpenSSL header files, most source code
15979 should work without changes.
15980
15981 *Richard Levitte*
15982
15983 * `<openssl/opensslconf.h>` (which is created by Configure) now contains
15984 sections with information on -D... compiler switches used for
15985 compiling the library so that applications can see them. To enable
15986 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES`
15987 must be defined. E.g.,
15988 #define OPENSSL_ALGORITHM_DEFINES
15989 #include <openssl/opensslconf.h>
15990 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc.
15991
15992 *Richard Levitte, Ulf and Bodo Möller*
15993
15994 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
15995 record layer.
15996
15997 *Bodo Moeller*
15998
15999 * Change the 'other' type in certificate aux info to a STACK_OF
16000 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
16001 the required ASN1 format: arbitrary types determined by an OID.
16002
16003 *Steve Henson*
16004
16005 * Add some PEM_write_X509_REQ_NEW() functions and a command line
16006 argument to 'req'. This is not because the function is newer or
16007 better than others it just uses the work 'NEW' in the certificate
16008 request header lines. Some software needs this.
16009
16010 *Steve Henson*
16011
16012 * Reorganise password command line arguments: now passwords can be
16013 obtained from various sources. Delete the PEM_cb function and make
16014 it the default behaviour: i.e. if the callback is NULL and the
16015 usrdata argument is not NULL interpret it as a null terminated pass
16016 phrase. If usrdata and the callback are NULL then the pass phrase
16017 is prompted for as usual.
16018
16019 *Steve Henson*
16020
16021 * Add support for the Compaq Atalla crypto accelerator. If it is installed,
16022 the support is automatically enabled. The resulting binaries will
16023 autodetect the card and use it if present.
16024
16025 *Ben Laurie and Compaq Inc.*
16026
16027 * Work around for Netscape hang bug. This sends certificate request
16028 and server done in one record. Since this is perfectly legal in the
16029 SSL/TLS protocol it isn't a "bug" option and is on by default. See
16030 the bugs/SSLv3 entry for more info.
16031
16032 *Steve Henson*
16033
16034 * HP-UX tune-up: new unified configs, HP C compiler bug workaround.
16035
16036 *Andy Polyakov*
16037
16038 * Add -rand argument to smime and pkcs12 applications and read/write
16039 of seed file.
16040
16041 *Steve Henson*
16042
16043 * New 'passwd' tool for crypt(3) and apr1 password hashes.
16044
16045 *Bodo Moeller*
16046
16047 * Add command line password options to the remaining applications.
16048
16049 *Steve Henson*
16050
16051 * Bug fix for BN_div_recp() for numerators with an even number of
16052 bits.
16053
16054 *Ulf Möller*
16055
16056 * More tests in bntest.c, and changed test_bn output.
16057
16058 *Ulf Möller*
16059
16060 * ./config recognizes MacOS X now.
16061
16062 *Andy Polyakov*
16063
16064 * Bug fix for BN_div() when the first words of num and divisor are
16065 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`.
16066
16067 *Ulf Möller*
16068
16069 * Add support for various broken PKCS#8 formats, and command line
16070 options to produce them.
16071
16072 *Steve Henson*
16073
16074 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
16075 get temporary BIGNUMs from a BN_CTX.
16076
16077 *Ulf Möller*
16078
16079 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
16080 for p == 0.
16081
16082 *Ulf Möller*
16083
16084 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and
16085 include a #define from the old name to the new. The original intent
16086 was that statically linked binaries could for example just call
16087 SSLeay_add_all_ciphers() to just add ciphers to the table and not
16088 link with digests. This never worked because SSLeay_add_all_digests()
16089 and SSLeay_add_all_ciphers() were in the same source file so calling
16090 one would link with the other. They are now in separate source files.
16091
16092 *Steve Henson*
16093
16094 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
16095
16096 *Steve Henson*
16097
16098 * Use a less unusual form of the Miller-Rabin primality test (it used
16099 a binary algorithm for exponentiation integrated into the Miller-Rabin
16100 loop, our standard modexp algorithms are faster).
16101
16102 *Bodo Moeller*
16103
16104 * Support for the EBCDIC character set completed.
16105
16106 *Martin Kraemer <[email protected]>*
16107
16108 * Source code cleanups: use const where appropriate, eliminate casts,
16109 use `void *` instead of `char *` in lhash.
16110
16111 *Ulf Möller*
16112
16113 * Bugfix: ssl3_send_server_key_exchange was not restartable
16114 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
16115 this the server could overwrite ephemeral keys that the client
16116 has already seen).
16117
16118 *Bodo Moeller*
16119
16120 * Turn DSA_is_prime into a macro that calls BN_is_prime,
16121 using 50 iterations of the Rabin-Miller test.
16122
16123 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
16124 iterations of the Rabin-Miller test as required by the appendix
16125 to FIPS PUB 186[-1]) instead of DSA_is_prime.
16126 As BN_is_prime_fasttest includes trial division, DSA parameter
16127 generation becomes much faster.
16128
16129 This implies a change for the callback functions in DSA_is_prime
16130 and DSA_generate_parameters: The callback function is called once
16131 for each positive witness in the Rabin-Miller test, not just
16132 occasionally in the inner loop; and the parameters to the
16133 callback function now provide an iteration count for the outer
16134 loop rather than for the current invocation of the inner loop.
16135 DSA_generate_parameters additionally can call the callback
16136 function with an 'iteration count' of -1, meaning that a
16137 candidate has passed the trial division test (when q is generated
16138 from an application-provided seed, trial division is skipped).
16139
16140 *Bodo Moeller*
16141
16142 * New function BN_is_prime_fasttest that optionally does trial
16143 division before starting the Rabin-Miller test and has
16144 an additional BN_CTX * argument (whereas BN_is_prime always
16145 has to allocate at least one BN_CTX).
16146 'callback(1, -1, cb_arg)' is called when a number has passed the
16147 trial division stage.
16148
16149 *Bodo Moeller*
16150
16151 * Fix for bug in CRL encoding. The validity dates weren't being handled
16152 as ASN1_TIME.
16153
16154 *Steve Henson*
16155
16156 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
16157
16158 *Steve Henson*
16159
16160 * New function BN_pseudo_rand().
16161
16162 *Ulf Möller*
16163
16164 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
16165 bignum version of BN_from_montgomery() with the working code from
16166 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
16167 the comments.
16168
16169 *Ulf Möller*
16170
16171 * Avoid a race condition in s2_clnt.c (function get_server_hello) that
16172 made it impossible to use the same SSL_SESSION data structure in
16173 SSL2 clients in multiple threads.
16174
16175 *Bodo Moeller*
16176
16177 * The return value of RAND_load_file() no longer counts bytes obtained
16178 by stat(). RAND_load_file(..., -1) is new and uses the complete file
16179 to seed the PRNG (previously an explicit byte count was required).
16180
16181 *Ulf Möller, Bodo Möller*
16182
16183 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
16184 used `char *` instead of `void *` and had casts all over the place.
16185
16186 *Steve Henson*
16187
16188 * Make BN_generate_prime() return NULL on error if ret!=NULL.
16189
16190 *Ulf Möller*
16191
16192 * Retain source code compatibility for BN_prime_checks macro:
16193 BN_is_prime(..., BN_prime_checks, ...) now uses
16194 BN_prime_checks_for_size to determine the appropriate number of
16195 Rabin-Miller iterations.
16196
16197 *Ulf Möller*
16198
16199 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
16200 DH_CHECK_P_NOT_SAFE_PRIME.
16201 (Check if this is true? OpenPGP calls them "strong".)
16202
16203 *Ulf Möller*
16204
16205 * Merge the functionality of "dh" and "gendh" programs into a new program
16206 "dhparam". The old programs are retained for now but will handle DH keys
16207 (instead of parameters) in future.
16208
16209 *Steve Henson*
16210
16211 * Make the ciphers, s_server and s_client programs check the return values
16212 when a new cipher list is set.
16213
16214 *Steve Henson*
16215
16216 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
16217 ciphers. Before when the 56bit ciphers were enabled the sorting was
16218 wrong.
16219
16220 The syntax for the cipher sorting has been extended to support sorting by
16221 cipher-strength (using the strength_bits hard coded in the tables).
16222 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`).
16223
16224 Fix a bug in the cipher-command parser: when supplying a cipher command
16225 string with an "undefined" symbol (neither command nor alphanumeric
16226 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now
16227 an error is flagged.
16228
16229 Due to the strength-sorting extension, the code of the
16230 ssl_create_cipher_list() function was completely rearranged. I hope that
16231 the readability was also increased :-)
16232
16233 *Lutz Jaenicke <[email protected]>*
16234
16235 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1
16236 for the first serial number and places 2 in the serial number file. This
16237 avoids problems when the root CA is created with serial number zero and
16238 the first user certificate has the same issuer name and serial number
16239 as the root CA.
16240
16241 *Steve Henson*
16242
16243 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
16244 the new code. Add documentation for this stuff.
16245
16246 *Steve Henson*
16247
16248 * Changes to X509_ATTRIBUTE utilities. These have been renamed from
16249 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509
16250 structures and behave in an analogous way to the X509v3 functions:
16251 they shouldn't be called directly but wrapper functions should be used
16252 instead.
16253
16254 So we also now have some wrapper functions that call the X509at functions
16255 when passed certificate requests. (TO DO: similar things can be done with
16256 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
16257 things. Some of these need some d2i or i2d and print functionality
16258 because they handle more complex structures.)
16259
16260 *Steve Henson*
16261
16262 * Add missing #ifndefs that caused missing symbols when building libssl
16263 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
16264 NO_RSA in `ssl/s2*.c`.
16265
16266 *Kris Kennaway <[email protected]>, modified by Ulf Möller*
16267
16268 * Precautions against using the PRNG uninitialized: RAND_bytes() now
16269 has a return value which indicates the quality of the random data
16270 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
16271 error queue. New function RAND_pseudo_bytes() generates output that is
16272 guaranteed to be unique but not unpredictable. RAND_add is like
16273 RAND_seed, but takes an extra argument for an entropy estimate
16274 (RAND_seed always assumes full entropy).
16275
16276 *Ulf Möller*
16277
16278 * Do more iterations of Rabin-Miller probable prime test (specifically,
16279 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
16280 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
16281 in crypto/bn/bn_prime.c for the complete table). This guarantees a
16282 false-positive rate of at most 2^-80 for random input.
16283
16284 *Bodo Moeller*
16285
16286 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
16287
16288 *Bodo Moeller*
16289
16290 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
16291 in the 0.9.5 release), this returns the chain
16292 from an X509_CTX structure with a dup of the stack and all
16293 the X509 reference counts upped: so the stack will exist
16294 after X509_CTX_cleanup() has been called. Modify pkcs12.c
16295 to use this.
16296
16297 Also make SSL_SESSION_print() print out the verify return
16298 code.
16299
16300 *Steve Henson*
16301
16302 * Add manpage for the pkcs12 command. Also change the default
16303 behaviour so MAC iteration counts are used unless the new
16304 -nomaciter option is used. This improves file security and
16305 only older versions of MSIE (4.0 for example) need it.
16306
16307 *Steve Henson*
16308
16309 * Honor the no-xxx Configure options when creating .DEF files.
16310
16311 *Ulf Möller*
16312
16313 * Add PKCS#10 attributes to field table: challengePassword,
16314 unstructuredName and unstructuredAddress. These are taken from
16315 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
16316 international characters are used.
16317
16318 More changes to X509_ATTRIBUTE code: allow the setting of types
16319 based on strings. Remove the 'loc' parameter when adding
16320 attributes because these will be a SET OF encoding which is sorted
16321 in ASN1 order.
16322
16323 *Steve Henson*
16324
16325 * Initial changes to the 'req' utility to allow request generation
16326 automation. This will allow an application to just generate a template
16327 file containing all the field values and have req construct the
16328 request.
16329
16330 Initial support for X509_ATTRIBUTE handling. Stacks of these are
16331 used all over the place including certificate requests and PKCS#7
16332 structures. They are currently handled manually where necessary with
16333 some primitive wrappers for PKCS#7. The new functions behave in a
16334 manner analogous to the X509 extension functions: they allow
16335 attributes to be looked up by NID and added.
16336
16337 Later something similar to the X509V3 code would be desirable to
16338 automatically handle the encoding, decoding and printing of the
16339 more complex types. The string types like challengePassword can
16340 be handled by the string table functions.
16341
16342 Also modified the multi byte string table handling. Now there is
16343 a 'global mask' which masks out certain types. The table itself
16344 can use the flag STABLE_NO_MASK to ignore the mask setting: this
16345 is useful when for example there is only one permissible type
16346 (as in countryName) and using the mask might result in no valid
16347 types at all.
16348
16349 *Steve Henson*
16350
16351 * Clean up 'Finished' handling, and add functions SSL_get_finished and
16352 SSL_get_peer_finished to allow applications to obtain the latest
16353 Finished messages sent to the peer or expected from the peer,
16354 respectively. (SSL_get_peer_finished is usually the Finished message
16355 actually received from the peer, otherwise the protocol will be aborted.)
16356
16357 As the Finished message are message digests of the complete handshake
16358 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
16359 be used for external authentication procedures when the authentication
16360 provided by SSL/TLS is not desired or is not enough.
16361
16362 *Bodo Moeller*
16363
16364 * Enhanced support for Alpha Linux is added. Now ./config checks if
16365 the host supports BWX extension and if Compaq C is present on the
16366 $PATH. Just exploiting of the BWX extension results in 20-30%
16367 performance kick for some algorithms, e.g. DES and RC4 to mention
16368 a couple. Compaq C in turn generates ~20% faster code for MD5 and
16369 SHA1.
16370
16371 *Andy Polyakov*
16372
16373 * Add support for MS "fast SGC". This is arguably a violation of the
16374 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
16375 weak crypto and after checking the certificate is SGC a second one
16376 with strong crypto. MS SGC stops the first handshake after receiving
16377 the server certificate message and sends a second client hello. Since
16378 a server will typically do all the time consuming operations before
16379 expecting any further messages from the client (server key exchange
16380 is the most expensive) there is little difference between the two.
16381
16382 To get OpenSSL to support MS SGC we have to permit a second client
16383 hello message after we have sent server done. In addition we have to
16384 reset the MAC if we do get this second client hello.
16385
16386 *Steve Henson*
16387
16388 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide
16389 if a DER encoded private key is RSA or DSA traditional format. Changed
16390 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
16391 format DER encoded private key. Newer code should use PKCS#8 format which
16392 has the key type encoded in the ASN1 structure. Added DER private key
16393 support to pkcs8 application.
16394
16395 *Steve Henson*
16396
16397 * SSL 3/TLS 1 servers now don't request certificates when an anonymous
16398 ciphersuites has been selected (as required by the SSL 3/TLS 1
16399 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
16400 is set, we interpret this as a request to violate the specification
16401 (the worst that can happen is a handshake failure, and 'correct'
16402 behaviour would result in a handshake failure anyway).
16403
16404 *Bodo Moeller*
16405
16406 * In SSL_CTX_add_session, take into account that there might be multiple
16407 SSL_SESSION structures with the same session ID (e.g. when two threads
16408 concurrently obtain them from an external cache).
16409 The internal cache can handle only one SSL_SESSION with a given ID,
16410 so if there's a conflict, we now throw out the old one to achieve
16411 consistency.
16412
16413 *Bodo Moeller*
16414
16415 * Add OIDs for idea and blowfish in CBC mode. This will allow both
16416 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
16417 some routines that use cipher OIDs: some ciphers do not have OIDs
16418 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
16419 example.
16420
16421 *Steve Henson*
16422
16423 * Simplify the trust setting structure and code. Now we just have
16424 two sequences of OIDs for trusted and rejected settings. These will
16425 typically have values the same as the extended key usage extension
16426 and any application specific purposes.
16427
16428 The trust checking code now has a default behaviour: it will just
16429 check for an object with the same NID as the passed id. Functions can
16430 be provided to override either the default behaviour or the behaviour
16431 for a given id. SSL client, server and email already have functions
16432 in place for compatibility: they check the NID and also return "trusted"
16433 if the certificate is self signed.
16434
16435 *Steve Henson*
16436
16437 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the
16438 traditional format into an EVP_PKEY structure.
16439
16440 *Steve Henson*
16441
16442 * Add a password callback function PEM_cb() which either prompts for
16443 a password if usr_data is NULL or otherwise assumes it is a null
16444 terminated password. Allow passwords to be passed on command line
16445 environment or config files in a few more utilities.
16446
16447 *Steve Henson*
16448
16449 * Add a bunch of DER and PEM functions to handle PKCS#8 format private
16450 keys. Add some short names for PKCS#8 PBE algorithms and allow them
16451 to be specified on the command line for the pkcs8 and pkcs12 utilities.
16452 Update documentation.
16453
16454 *Steve Henson*
16455
16456 * Support for ASN1 "NULL" type. This could be handled before by using
16457 ASN1_TYPE but there wasn't any function that would try to read a NULL
16458 and produce an error if it couldn't. For compatibility we also have
16459 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
16460 don't allocate anything because they don't need to.
16461
16462 *Steve Henson*
16463
16464 * Initial support for MacOS is now provided. Examine INSTALL.MacOS
16465 for details.
16466
16467 *Andy Polyakov, Roy Woods <[email protected]>*
16468
16469 * Rebuild of the memory allocation routines used by OpenSSL code and
16470 possibly others as well. The purpose is to make an interface that
16471 provide hooks so anyone can build a separate set of allocation and
16472 deallocation routines to be used by OpenSSL, for example memory
16473 pool implementations, or something else, which was previously hard
16474 since Malloc(), Realloc() and Free() were defined as macros having
16475 the values malloc, realloc and free, respectively (except for Win32
16476 compilations). The same is provided for memory debugging code.
16477 OpenSSL already comes with functionality to find memory leaks, but
16478 this gives people a chance to debug other memory problems.
16479
16480 With these changes, a new set of functions and macros have appeared:
16481
16482 CRYPTO_set_mem_debug_functions() [F]
16483 CRYPTO_get_mem_debug_functions() [F]
16484 CRYPTO_dbg_set_options() [F]
16485 CRYPTO_dbg_get_options() [F]
16486 CRYPTO_malloc_debug_init() [M]
16487
16488 The memory debug functions are NULL by default, unless the library
16489 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
16490 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
16491 gives the standard debugging functions that come with OpenSSL) or
16492 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
16493 provided by the library user) must be used. When the standard
16494 debugging functions are used, CRYPTO_dbg_set_options can be used to
16495 request additional information:
16496 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
16497 the CRYPTO_MDEBUG_xxx macro when compiling the library.
16498
16499 Also, things like CRYPTO_set_mem_functions will always give the
16500 expected result (the new set of functions is used for allocation
16501 and deallocation) at all times, regardless of platform and compiler
16502 options.
16503
16504 To finish it up, some functions that were never use in any other
16505 way than through macros have a new API and new semantic:
16506
16507 CRYPTO_dbg_malloc()
16508 CRYPTO_dbg_realloc()
16509 CRYPTO_dbg_free()
16510
16511 All macros of value have retained their old syntax.
16512
16513 *Richard Levitte and Bodo Moeller*
16514
16515 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
16516 ordering of SMIMECapabilities wasn't in "strength order" and there
16517 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
16518 algorithm.
16519
16520 *Steve Henson*
16521
16522 * Some ASN1 types with illegal zero length encoding (INTEGER,
16523 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
16524
16525 *Frans Heymans <[email protected]>, modified by Steve Henson*
16526
16527 * Merge in my S/MIME library for OpenSSL. This provides a simple
16528 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
16529 functionality to handle multipart/signed properly) and a utility
16530 called 'smime' to call all this stuff. This is based on code I
16531 originally wrote for Celo who have kindly allowed it to be
16532 included in OpenSSL.
16533
16534 *Steve Henson*
16535
16536 * Add variants des_set_key_checked and des_set_key_unchecked of
16537 des_set_key (aka des_key_sched). Global variable des_check_key
16538 decides which of these is called by des_set_key; this way
16539 des_check_key behaves as it always did, but applications and
16540 the library itself, which was buggy for des_check_key == 1,
16541 have a cleaner way to pick the version they need.
16542
16543 *Bodo Moeller*
16544
16545 * New function PKCS12_newpass() which changes the password of a
16546 PKCS12 structure.
16547
16548 *Steve Henson*
16549
16550 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and
16551 dynamic mix. In both cases the ids can be used as an index into the
16552 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
16553 functions so they accept a list of the field values and the
16554 application doesn't need to directly manipulate the X509_TRUST
16555 structure.
16556
16557 *Steve Henson*
16558
16559 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
16560 need initialising.
16561
16562 *Steve Henson*
16563
16564 * Modify the way the V3 extension code looks up extensions. This now
16565 works in a similar way to the object code: we have some "standard"
16566 extensions in a static table which is searched with OBJ_bsearch()
16567 and the application can add dynamic ones if needed. The file
16568 crypto/x509v3/ext_dat.h now has the info: this file needs to be
16569 updated whenever a new extension is added to the core code and kept
16570 in ext_nid order. There is a simple program 'tabtest.c' which checks
16571 this. New extensions are not added too often so this file can readily
16572 be maintained manually.
16573
16574 There are two big advantages in doing things this way. The extensions
16575 can be looked up immediately and no longer need to be "added" using
16576 X509V3_add_standard_extensions(): this function now does nothing.
16577 Side note: I get *lots* of email saying the extension code doesn't
16578 work because people forget to call this function.
16579 Also no dynamic allocation is done unless new extensions are added:
16580 so if we don't add custom extensions there is no need to call
16581 X509V3_EXT_cleanup().
16582
16583 *Steve Henson*
16584
16585 * Modify enc utility's salting as follows: make salting the default. Add a
16586 magic header, so unsalted files fail gracefully instead of just decrypting
16587 to garbage. This is because not salting is a big security hole, so people
16588 should be discouraged from doing it.
16589
16590 *Ben Laurie*
16591
16592 * Fixes and enhancements to the 'x509' utility. It allowed a message
16593 digest to be passed on the command line but it only used this
16594 parameter when signing a certificate. Modified so all relevant
16595 operations are affected by the digest parameter including the
16596 -fingerprint and -x509toreq options. Also -x509toreq choked if a
16597 DSA key was used because it didn't fix the digest.
16598
16599 *Steve Henson*
16600
16601 * Initial certificate chain verify code. Currently tests the untrusted
16602 certificates for consistency with the verify purpose (which is set
16603 when the X509_STORE_CTX structure is set up) and checks the pathlength.
16604
16605 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
16606 this is because it will reject chains with invalid extensions whereas
16607 every previous version of OpenSSL and SSLeay made no checks at all.
16608
16609 Trust code: checks the root CA for the relevant trust settings. Trust
16610 settings have an initial value consistent with the verify purpose: e.g.
16611 if the verify purpose is for SSL client use it expects the CA to be
16612 trusted for SSL client use. However the default value can be changed to
16613 permit custom trust settings: one example of this would be to only trust
16614 certificates from a specific "secure" set of CAs.
16615
16616 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
16617 which should be used for version portability: especially since the
16618 verify structure is likely to change more often now.
16619
16620 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
16621 to set them. If not set then assume SSL clients will verify SSL servers
16622 and vice versa.
16623
16624 Two new options to the verify program: -untrusted allows a set of
16625 untrusted certificates to be passed in and -purpose which sets the
16626 intended purpose of the certificate. If a purpose is set then the
16627 new chain verify code is used to check extension consistency.
16628
16629 *Steve Henson*
16630
16631 * Support for the authority information access extension.
16632
16633 *Steve Henson*
16634
16635 * Modify RSA and DSA PEM read routines to transparently handle
16636 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
16637 public keys in a format compatible with certificate
16638 SubjectPublicKeyInfo structures. Unfortunately there were already
16639 functions called *_PublicKey_* which used various odd formats so
16640 these are retained for compatibility: however the DSA variants were
16641 never in a public release so they have been deleted. Changed dsa/rsa
16642 utilities to handle the new format: note no releases ever handled public
16643 keys so we should be OK.
16644
16645 The primary motivation for this change is to avoid the same fiasco
16646 that dogs private keys: there are several incompatible private key
16647 formats some of which are standard and some OpenSSL specific and
16648 require various evil hacks to allow partial transparent handling and
16649 even then it doesn't work with DER formats. Given the option anything
16650 other than PKCS#8 should be dumped: but the other formats have to
16651 stay in the name of compatibility.
16652
16653 With public keys and the benefit of hindsight one standard format
16654 is used which works with EVP_PKEY, RSA or DSA structures: though
16655 it clearly returns an error if you try to read the wrong kind of key.
16656
16657 Added a -pubkey option to the 'x509' utility to output the public key.
16658 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()`
16659 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add
16660 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`)
16661 that do the same as the `EVP_PKEY_assign_*()` except they up the
16662 reference count of the added key (they don't "swallow" the
16663 supplied key).
16664
16665 *Steve Henson*
16666
16667 * Fixes to crypto/x509/by_file.c the code to read in certificates and
16668 CRLs would fail if the file contained no certificates or no CRLs:
16669 added a new function to read in both types and return the number
16670 read: this means that if none are read it will be an error. The
16671 DER versions of the certificate and CRL reader would always fail
16672 because it isn't possible to mix certificates and CRLs in DER format
16673 without choking one or the other routine. Changed this to just read
16674 a certificate: this is the best we can do. Also modified the code
16675 in `apps/verify.c` to take notice of return codes: it was previously
16676 attempting to read in certificates from NULL pointers and ignoring
16677 any errors: this is one reason why the cert and CRL reader seemed
16678 to work. It doesn't check return codes from the default certificate
16679 routines: these may well fail if the certificates aren't installed.
16680
16681 *Steve Henson*
16682
16683 * Code to support otherName option in GeneralName.
16684
16685 *Steve Henson*
16686
16687 * First update to verify code. Change the verify utility
16688 so it warns if it is passed a self signed certificate:
16689 for consistency with the normal behaviour. X509_verify
16690 has been modified to it will now verify a self signed
16691 certificate if *exactly* the same certificate appears
16692 in the store: it was previously impossible to trust a
16693 single self signed certificate. This means that:
16694 openssl verify ss.pem
16695 now gives a warning about a self signed certificate but
16696 openssl verify -CAfile ss.pem ss.pem
16697 is OK.
16698
16699 *Steve Henson*
16700
16701 * For servers, store verify_result in SSL_SESSION data structure
16702 (and add it to external session representation).
16703 This is needed when client certificate verifications fails,
16704 but an application-provided verification callback (set by
16705 SSL_CTX_set_cert_verify_callback) allows accepting the session
16706 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
16707 but returns 1): When the session is reused, we have to set
16708 ssl->verify_result to the appropriate error code to avoid
16709 security holes.
16710
16711 *Bodo Moeller, problem pointed out by Lutz Jaenicke*
16712
16713 * Fix a bug in the new PKCS#7 code: it didn't consider the
16714 case in PKCS7_dataInit() where the signed PKCS7 structure
16715 didn't contain any existing data because it was being created.
16716
16717 *Po-Cheng Chen <[email protected]>, slightly modified by Steve Henson*
16718
16719 * Add a salt to the key derivation routines in enc.c. This
16720 forms the first 8 bytes of the encrypted file. Also add a
16721 -S option to allow a salt to be input on the command line.
16722
16723 *Steve Henson*
16724
16725 * New function X509_cmp(). Oddly enough there wasn't a function
16726 to compare two certificates. We do this by working out the SHA1
16727 hash and comparing that. X509_cmp() will be needed by the trust
16728 code.
16729
16730 *Steve Henson*
16731
16732 * SSL_get1_session() is like SSL_get_session(), but increments
16733 the reference count in the SSL_SESSION returned.
16734
16735 *Geoff Thorpe <[email protected]>*
16736
16737 * Fix for 'req': it was adding a null to request attributes.
16738 Also change the X509_LOOKUP and X509_INFO code to handle
16739 certificate auxiliary information.
16740
16741 *Steve Henson*
16742
16743 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document
16744 the 'enc' command.
16745
16746 *Steve Henson*
16747
16748 * Add the possibility to add extra information to the memory leak
16749 detecting output, to form tracebacks, showing from where each
16750 allocation was originated: CRYPTO_push_info("constant string") adds
16751 the string plus current file name and line number to a per-thread
16752 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
16753 is like calling CYRPTO_pop_info() until the stack is empty.
16754 Also updated memory leak detection code to be multi-thread-safe.
16755
16756 *Richard Levitte*
16757
16758 * Add options -text and -noout to pkcs7 utility and delete the
16759 encryption options which never did anything. Update docs.
16760
16761 *Steve Henson*
16762
16763 * Add options to some of the utilities to allow the pass phrase
16764 to be included on either the command line (not recommended on
16765 OSes like Unix) or read from the environment. Update the
16766 manpages and fix a few bugs.
16767
16768 *Steve Henson*
16769
16770 * Add a few manpages for some of the openssl commands.
16771
16772 *Steve Henson*
16773
16774 * Fix the -revoke option in ca. It was freeing up memory twice,
16775 leaking and not finding already revoked certificates.
16776
16777 *Steve Henson*
16778
16779 * Extensive changes to support certificate auxiliary information.
16780 This involves the use of X509_CERT_AUX structure and X509_AUX
16781 functions. An X509_AUX function such as PEM_read_X509_AUX()
16782 can still read in a certificate file in the usual way but it
16783 will also read in any additional "auxiliary information". By
16784 doing things this way a fair degree of compatibility can be
16785 retained: existing certificates can have this information added
16786 using the new 'x509' options.
16787
16788 Current auxiliary information includes an "alias" and some trust
16789 settings. The trust settings will ultimately be used in enhanced
16790 certificate chain verification routines: currently a certificate
16791 can only be trusted if it is self signed and then it is trusted
16792 for all purposes.
16793
16794 *Steve Henson*
16795
16796 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`).
16797 The problem was that one of the replacement routines had not been working
16798 since SSLeay releases. For now the offending routine has been replaced
16799 with non-optimised assembler. Even so, this now gives around 95%
16800 performance improvement for 1024 bit RSA signs.
16801
16802 *Mark Cox*
16803
16804 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2
16805 handling. Most clients have the effective key size in bits equal to
16806 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
16807 A few however don't do this and instead use the size of the decrypted key
16808 to determine the RC2 key length and the AlgorithmIdentifier to determine
16809 the effective key length. In this case the effective key length can still
16810 be 40 bits but the key length can be 168 bits for example. This is fixed
16811 by manually forcing an RC2 key into the EVP_PKEY structure because the
16812 EVP code can't currently handle unusual RC2 key sizes: it always assumes
16813 the key length and effective key length are equal.
16814
16815 *Steve Henson*
16816
16817 * Add a bunch of functions that should simplify the creation of
16818 X509_NAME structures. Now you should be able to do:
16819 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
16820 and have it automatically work out the correct field type and fill in
16821 the structures. The more adventurous can try:
16822 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
16823 and it will (hopefully) work out the correct multibyte encoding.
16824
16825 *Steve Henson*
16826
16827 * Change the 'req' utility to use the new field handling and multibyte
16828 copy routines. Before the DN field creation was handled in an ad hoc
16829 way in req, ca, and x509 which was rather broken and didn't support
16830 BMPStrings or UTF8Strings. Since some software doesn't implement
16831 BMPStrings or UTF8Strings yet, they can be enabled using the config file
16832 using the dirstring_type option. See the new comment in the default
16833 openssl.cnf for more info.
16834
16835 *Steve Henson*
16836
16837 * Make crypto/rand/md_rand.c more robust:
16838 - Assure unique random numbers after fork().
16839 - Make sure that concurrent threads access the global counter and
16840 md serializably so that we never lose entropy in them
16841 or use exactly the same state in multiple threads.
16842 Access to the large state is not always serializable because
16843 the additional locking could be a performance killer, and
16844 md should be large enough anyway.
16845
16846 *Bodo Moeller*
16847
16848 * New file `apps/app_rand.c` with commonly needed functionality
16849 for handling the random seed file.
16850
16851 Use the random seed file in some applications that previously did not:
16852 ca,
16853 dsaparam -genkey (which also ignored its '-rand' option),
16854 s_client,
16855 s_server,
16856 x509 (when signing).
16857 Except on systems with /dev/urandom, it is crucial to have a random
16858 seed file at least for key creation, DSA signing, and for DH exchanges;
16859 for RSA signatures we could do without one.
16860
16861 gendh and gendsa (unlike genrsa) used to read only the first byte
16862 of each file listed in the '-rand' option. The function as previously
16863 found in genrsa is now in app_rand.c and is used by all programs
16864 that support '-rand'.
16865
16866 *Bodo Moeller*
16867
16868 * In RAND_write_file, use mode 0600 for creating files;
16869 don't just chmod when it may be too late.
16870
16871 *Bodo Moeller*
16872
16873 * Report an error from X509_STORE_load_locations
16874 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
16875
16876 *Bill Perry*
16877
16878 * New function ASN1_mbstring_copy() this copies a string in either
16879 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
16880 into an ASN1_STRING type. A mask of permissible types is passed
16881 and it chooses the "minimal" type to use or an error if not type
16882 is suitable.
16883
16884 *Steve Henson*
16885
16886 * Add function equivalents to the various macros in asn1.h. The old
16887 macros are retained with an `M_` prefix. Code inside the library can
16888 use the `M_` macros. External code (including the openssl utility)
16889 should *NOT* in order to be "shared library friendly".
16890
16891 *Steve Henson*
16892
16893 * Add various functions that can check a certificate's extensions
16894 to see if it usable for various purposes such as SSL client,
16895 server or S/MIME and CAs of these types. This is currently
16896 VERY EXPERIMENTAL but will ultimately be used for certificate chain
16897 verification. Also added a -purpose flag to x509 utility to
16898 print out all the purposes.
16899
16900 *Steve Henson*
16901
16902 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated
16903 functions.
16904
16905 *Steve Henson*
16906
16907 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search
16908 for, obtain and decode and extension and obtain its critical flag.
16909 This allows all the necessary extension code to be handled in a
16910 single function call.
16911
16912 *Steve Henson*
16913
16914 * RC4 tune-up featuring 30-40% performance improvement on most RISC
16915 platforms. See crypto/rc4/rc4_enc.c for further details.
16916
16917 *Andy Polyakov*
16918
16919 * New -noout option to asn1parse. This causes no output to be produced
16920 its main use is when combined with -strparse and -out to extract data
16921 from a file (which may not be in ASN.1 format).
16922
16923 *Steve Henson*
16924
16925 * Fix for pkcs12 program. It was hashing an invalid certificate pointer
16926 when producing the local key id.
16927
16928 *Richard Levitte <[email protected]>*
16929
16930 * New option -dhparam in s_server. This allows a DH parameter file to be
16931 stated explicitly. If it is not stated then it tries the first server
16932 certificate file. The previous behaviour hard coded the filename
16933 "server.pem".
16934
16935 *Steve Henson*
16936
16937 * Add -pubin and -pubout options to the rsa and dsa commands. These allow
16938 a public key to be input or output. For example:
16939 openssl rsa -in key.pem -pubout -out pubkey.pem
16940 Also added necessary DSA public key functions to handle this.
16941
16942 *Steve Henson*
16943
16944 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
16945 in the message. This was handled by allowing
16946 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
16947
16948 *Steve Henson, reported by Sampo Kellomaki <[email protected]>*
16949
16950 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
16951 to the end of the strings whereas this didn't. This would cause problems
16952 if strings read with d2i_ASN1_bytes() were later modified.
16953
16954 *Steve Henson, reported by Arne Ansper <[email protected]>*
16955
16956 * Fix for base64 decode bug. When a base64 bio reads only one line of
16957 data and it contains EOF it will end up returning an error. This is
16958 caused by input 46 bytes long. The cause is due to the way base64
16959 BIOs find the start of base64 encoded data. They do this by trying a
16960 trial decode on each line until they find one that works. When they
16961 do a flag is set and it starts again knowing it can pass all the
16962 data directly through the decoder. Unfortunately it doesn't reset
16963 the context it uses. This means that if EOF is reached an attempt
16964 is made to pass two EOFs through the context and this causes the
16965 resulting error. This can also cause other problems as well. As is
16966 usual with these problems it takes *ages* to find and the fix is
16967 trivial: move one line.
16968
16969 *Steve Henson, reported by [email protected] (Ivan Nejgebauer)*
16970
16971 * Ugly workaround to get s_client and s_server working under Windows. The
16972 old code wouldn't work because it needed to select() on sockets and the
16973 tty (for keypresses and to see if data could be written). Win32 only
16974 supports select() on sockets so we select() with a 1s timeout on the
16975 sockets and then see if any characters are waiting to be read, if none
16976 are present then we retry, we also assume we can always write data to
16977 the tty. This isn't nice because the code then blocks until we've
16978 received a complete line of data and it is effectively polling the
16979 keyboard at 1s intervals: however it's quite a bit better than not
16980 working at all :-) A dedicated Windows application might handle this
16981 with an event loop for example.
16982
16983 *Steve Henson*
16984
16985 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
16986 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
16987 will be called when RSA_sign() and RSA_verify() are used. This is useful
16988 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
16989 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
16990 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
16991 This necessitated the support of an extra signature type NID_md5_sha1
16992 for SSL signatures and modifications to the SSL library to use it instead
16993 of calling RSA_public_decrypt() and RSA_private_encrypt().
16994
16995 *Steve Henson*
16996
16997 * Add new -verify -CAfile and -CApath options to the crl program, these
16998 will lookup a CRL issuers certificate and verify the signature in a
16999 similar way to the verify program. Tidy up the crl program so it
17000 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
17001 less strict. It will now permit CRL extensions even if it is not
17002 a V2 CRL: this will allow it to tolerate some broken CRLs.
17003
17004 *Steve Henson*
17005
17006 * Initialize all non-automatic variables each time one of the openssl
17007 sub-programs is started (this is necessary as they may be started
17008 multiple times from the "OpenSSL>" prompt).
17009
17010 *Lennart Bang, Bodo Moeller*
17011
17012 * Preliminary compilation option RSA_NULL which disables RSA crypto without
17013 removing all other RSA functionality (this is what NO_RSA does). This
17014 is so (for example) those in the US can disable those operations covered
17015 by the RSA patent while allowing storage and parsing of RSA keys and RSA
17016 key generation.
17017
17018 *Steve Henson*
17019
17020 * Non-copying interface to BIO pairs.
17021 (still largely untested)
17022
17023 *Bodo Moeller*
17024
17025 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive
17026 ASCII string. This was handled independently in various places before.
17027
17028 *Steve Henson*
17029
17030 * New functions UTF8_getc() and UTF8_putc() that parse and generate
17031 UTF8 strings a character at a time.
17032
17033 *Steve Henson*
17034
17035 * Use client_version from client hello to select the protocol
17036 (s23_srvr.c) and for RSA client key exchange verification
17037 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
17038
17039 *Bodo Moeller*
17040
17041 * Add various utility functions to handle SPKACs, these were previously
17042 handled by poking round in the structure internals. Added new function
17043 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
17044 print, verify and generate SPKACs. Based on an original idea from
17045 Massimiliano Pala <[email protected]> but extensively modified.
17046
17047 *Steve Henson*
17048
17049 * RIPEMD160 is operational on all platforms and is back in 'make test'.
17050
17051 *Andy Polyakov*
17052
17053 * Allow the config file extension section to be overwritten on the
17054 command line. Based on an original idea from Massimiliano Pala
17055 <[email protected]>. The new option is called -extensions
17056 and can be applied to ca, req and x509. Also -reqexts to override
17057 the request extensions in req and -crlexts to override the crl extensions
17058 in ca.
17059
17060 *Steve Henson*
17061
17062 * Add new feature to the SPKAC handling in ca. Now you can include
17063 the same field multiple times by preceding it by "XXXX." for example:
17064 1.OU="Unit name 1"
17065 2.OU="Unit name 2"
17066 this is the same syntax as used in the req config file.
17067
17068 *Steve Henson*
17069
17070 * Allow certificate extensions to be added to certificate requests. These
17071 are specified in a 'req_extensions' option of the req section of the
17072 config file. They can be printed out with the -text option to req but
17073 are otherwise ignored at present.
17074
17075 *Steve Henson*
17076
17077 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
17078 data read consists of only the final block it would not decrypted because
17079 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
17080 A misplaced 'break' also meant the decrypted final block might not be
17081 copied until the next read.
17082
17083 *Steve Henson*
17084
17085 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
17086 a few extra parameters to the DH structure: these will be useful if
17087 for example we want the value of 'q' or implement X9.42 DH.
17088
17089 *Steve Henson*
17090
17091 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and
17092 provides hooks that allow the default DSA functions or functions on a
17093 "per key" basis to be replaced. This allows hardware acceleration and
17094 hardware key storage to be handled without major modification to the
17095 library. Also added low-level modexp hooks and CRYPTO_EX structure and
17096 associated functions.
17097
17098 *Steve Henson*
17099
17100 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
17101 as "read only": it can't be written to and the buffer it points to will
17102 not be freed. Reading from a read only BIO is much more efficient than
17103 a normal memory BIO. This was added because there are several times when
17104 an area of memory needs to be read from a BIO. The previous method was
17105 to create a memory BIO and write the data to it, this results in two
17106 copies of the data and an O(n^2) reading algorithm. There is a new
17107 function BIO_new_mem_buf() which creates a read only memory BIO from
17108 an area of memory. Also modified the PKCS#7 routines to use read only
17109 memory BIOs.
17110
17111 *Steve Henson*
17112
17113 * Bugfix: ssl23_get_client_hello did not work properly when called in
17114 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
17115 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
17116 but a retry condition occurred while trying to read the rest.
17117
17118 *Bodo Moeller*
17119
17120 * The PKCS7_ENC_CONTENT_new() function was setting the content type as
17121 NID_pkcs7_encrypted by default: this was wrong since this should almost
17122 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
17123 the encrypted data type: this is a more sensible place to put it and it
17124 allows the PKCS#12 code to be tidied up that duplicated this
17125 functionality.
17126
17127 *Steve Henson*
17128
17129 * Changed obj_dat.pl script so it takes its input and output files on
17130 the command line. This should avoid shell escape redirection problems
17131 under Win32.
17132
17133 *Steve Henson*
17134
17135 * Initial support for certificate extension requests, these are included
17136 in things like Xenroll certificate requests. Included functions to allow
17137 extensions to be obtained and added.
17138
17139 *Steve Henson*
17140
17141 * -crlf option to s_client and s_server for sending newlines as
17142 CRLF (as required by many protocols).
17143
17144 *Bodo Moeller*
17145
17146### Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
17147
17148 * Install libRSAglue.a when OpenSSL is built with RSAref.
17149
17150 *Ralf S. Engelschall*
17151
17152 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency.
17153
17154 *Andrija Antonijevic <[email protected]>*
17155
17156 * Fix -startdate and -enddate (which was missing) arguments to 'ca'
17157 program.
17158
17159 *Steve Henson*
17160
17161 * New function DSA_dup_DH, which duplicates DSA parameters/keys as
17162 DH parameters/keys (q is lost during that conversion, but the resulting
17163 DH parameters contain its length).
17164
17165 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
17166 much faster than DH_generate_parameters (which creates parameters
17167 where `p = 2*q + 1`), and also the smaller q makes DH computations
17168 much more efficient (160-bit exponentiation instead of 1024-bit
17169 exponentiation); so this provides a convenient way to support DHE
17170 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
17171 utter importance to use
17172 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
17173 or
17174 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
17175 when such DH parameters are used, because otherwise small subgroup
17176 attacks may become possible!
17177
17178 *Bodo Moeller*
17179
17180 * Avoid memory leak in i2d_DHparams.
17181
17182 *Bodo Moeller*
17183
17184 * Allow the -k option to be used more than once in the enc program:
17185 this allows the same encrypted message to be read by multiple recipients.
17186
17187 *Steve Henson*
17188
17189 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
17190 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
17191 it will always use the numerical form of the OID, even if it has a short
17192 or long name.
17193
17194 *Steve Henson*
17195
17196 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
17197 method only got called if p,q,dmp1,dmq1,iqmp components were present,
17198 otherwise bn_mod_exp was called. In the case of hardware keys for example
17199 no private key components need be present and it might store extra data
17200 in the RSA structure, which cannot be accessed from bn_mod_exp.
17201 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
17202 private key operations.
17203
17204 *Steve Henson*
17205
17206 * Added support for SPARC Linux.
17207
17208 *Andy Polyakov*
17209
17210 * pem_password_cb function type incompatibly changed from
17211 typedef int pem_password_cb(char *buf, int size, int rwflag);
17212 to
17213 ....(char *buf, int size, int rwflag, void *userdata);
17214 so that applications can pass data to their callbacks:
17215 The `PEM[_ASN1]_{read,write}...` functions and macros now take an
17216 additional void * argument, which is just handed through whenever
17217 the password callback is called.
17218
17219 *Damien Miller <[email protected]>; tiny changes by Bodo Moeller*
17220
17221 New function SSL_CTX_set_default_passwd_cb_userdata.
17222
17223 Compatibility note: As many C implementations push function arguments
17224 onto the stack in reverse order, the new library version is likely to
17225 interoperate with programs that have been compiled with the old
17226 pem_password_cb definition (PEM_whatever takes some data that
17227 happens to be on the stack as its last argument, and the callback
17228 just ignores this garbage); but there is no guarantee whatsoever that
17229 this will work.
17230
17231 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
17232 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
17233 problems not only on Windows, but also on some Unix platforms.
17234 To avoid problematic command lines, these definitions are now in an
17235 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
17236 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
17237
17238 *Bodo Moeller*
17239
17240 * MIPS III/IV assembler module is reimplemented.
17241
17242 *Andy Polyakov*
17243
17244 * More DES library cleanups: remove references to srand/rand and
17245 delete an unused file.
17246
17247 *Ulf Möller*
17248
17249 * Add support for the free Netwide assembler (NASM) under Win32,
17250 since not many people have MASM (ml) and it can be hard to obtain.
17251 This is currently experimental but it seems to work OK and pass all
17252 the tests. Check out INSTALL.W32 for info.
17253
17254 *Steve Henson*
17255
17256 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
17257 without temporary keys kept an extra copy of the server key,
17258 and connections with temporary keys did not free everything in case
17259 of an error.
17260
17261 *Bodo Moeller*
17262
17263 * New function RSA_check_key and new openssl rsa option -check
17264 for verifying the consistency of RSA keys.
17265
17266 *Ulf Moeller, Bodo Moeller*
17267
17268 * Various changes to make Win32 compile work:
17269 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
17270 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
17271 comparison" warnings.
17272 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update.
17273
17274 *Steve Henson*
17275
17276 * Add a debugging option to PKCS#5 v2 key generation function: when
17277 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
17278 derived keys are printed to stderr.
17279
17280 *Steve Henson*
17281
17282 * Copy the flags in ASN1_STRING_dup().
17283
17284 *Roman E. Pavlov <[email protected]>*
17285
17286 * The x509 application mishandled signing requests containing DSA
17287 keys when the signing key was also DSA and the parameters didn't match.
17288
17289 It was supposed to omit the parameters when they matched the signing key:
17290 the verifying software was then supposed to automatically use the CA's
17291 parameters if they were absent from the end user certificate.
17292
17293 Omitting parameters is no longer recommended. The test was also
17294 the wrong way round! This was probably due to unusual behaviour in
17295 EVP_cmp_parameters() which returns 1 if the parameters match.
17296 This meant that parameters were omitted when they *didn't* match and
17297 the certificate was useless. Certificates signed with 'ca' didn't have
17298 this bug.
17299
17300 *Steve Henson, reported by Doug Erickson <[email protected]>*
17301
17302 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
17303 The interface is as follows:
17304 Applications can use
17305 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
17306 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
17307 "off" is now the default.
17308 The library internally uses
17309 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
17310 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
17311 to disable memory-checking temporarily.
17312
17313 Some inconsistent states that previously were possible (and were
17314 even the default) are now avoided.
17315
17316 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
17317 with each memory chunk allocated; this is occasionally more helpful
17318 than just having a counter.
17319
17320 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
17321
17322 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
17323 extensions.
17324
17325 *Bodo Moeller*
17326
17327 * Introduce "mode" for SSL structures (with defaults in SSL_CTX),
17328 which largely parallels "options", but is for changing API behaviour,
17329 whereas "options" are about protocol behaviour.
17330 Initial "mode" flags are:
17331
17332 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
17333 a single record has been written.
17334 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
17335 retries use the same buffer location.
17336 (But all of the contents must be
17337 copied!)
17338
17339 *Bodo Moeller*
17340
17341 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
17342 worked.
17343
17344 * Fix problems with no-hmac etc.
17345
17346 *Ulf Möller, pointed out by Brian Wellington <[email protected]>*
17347
17348 * New functions RSA_get_default_method(), RSA_set_method() and
17349 RSA_get_method(). These allows replacement of RSA_METHODs without having
17350 to mess around with the internals of an RSA structure.
17351
17352 *Steve Henson*
17353
17354 * Fix memory leaks in DSA_do_sign and DSA_is_prime.
17355 Also really enable memory leak checks in openssl.c and in some
17356 test programs.
17357
17358 *Chad C. Mulligan, Bodo Moeller*
17359
17360 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
17361 up the length of negative integers. This has now been simplified to just
17362 store the length when it is first determined and use it later, rather
17363 than trying to keep track of where data is copied and updating it to
17364 point to the end.
17365 *Steve Henson, reported by Brien Wheeler <[email protected]>*
17366
17367 * Add a new function PKCS7_signatureVerify. This allows the verification
17368 of a PKCS#7 signature but with the signing certificate passed to the
17369 function itself. This contrasts with PKCS7_dataVerify which assumes the
17370 certificate is present in the PKCS#7 structure. This isn't always the
17371 case: certificates can be omitted from a PKCS#7 structure and be
17372 distributed by "out of band" means (such as a certificate database).
17373
17374 *Steve Henson*
17375
17376 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the
17377 function prototypes in pem.h, also change util/mkdef.pl to add the
17378 necessary function names.
17379
17380 *Steve Henson*
17381
17382 * mk1mf.pl (used by Windows builds) did not properly read the
17383 options set by Configure in the top level Makefile, and Configure
17384 was not even able to write more than one option correctly.
17385 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
17386
17387 *Bodo Moeller*
17388
17389 * New functions CONF_load_bio() and CONF_load_fp() to allow a config
17390 file to be loaded from a BIO or FILE pointer. The BIO version will
17391 for example allow memory BIOs to contain config info.
17392
17393 *Steve Henson*
17394
17395 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
17396 Whoever hopes to achieve shared-library compatibility across versions
17397 must use this, not the compile-time macro.
17398 (Exercise 0.9.4: Which is the minimum library version required by
17399 such programs?)
17400 Note: All this applies only to multi-threaded programs, others don't
17401 need locks.
17402
17403 *Bodo Moeller*
17404
17405 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests
17406 through a BIO pair triggered the default case, i.e.
17407 SSLerr(...,SSL_R_UNKNOWN_STATE).
17408
17409 *Bodo Moeller*
17410
17411 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
17412 can use the SSL library even if none of the specific BIOs is
17413 appropriate.
17414
17415 *Bodo Moeller*
17416
17417 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
17418 for the encoded length.
17419
17420 *Jeon KyoungHo <[email protected]>*
17421
17422 * Add initial documentation of the X509V3 functions.
17423
17424 *Steve Henson*
17425
17426 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and
17427 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
17428 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
17429 secure PKCS#8 private key format with a high iteration count.
17430
17431 *Steve Henson*
17432
17433 * Fix determination of Perl interpreter: A perl or perl5
17434 *directory* in $PATH was also accepted as the interpreter.
17435
17436 *Ralf S. Engelschall*
17437
17438 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking
17439 wrong with it but it was very old and did things like calling
17440 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
17441 unusual formatting.
17442
17443 *Steve Henson*
17444
17445 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed
17446 to use the new extension code.
17447
17448 *Steve Henson*
17449
17450 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
17451 with macros. This should make it easier to change their form, add extra
17452 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
17453 constant.
17454
17455 *Steve Henson*
17456
17457 * Add to configuration table a new entry that can specify an alternative
17458 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
17459 according to Mark Crispin <[email protected]>.
17460
17461 *Bodo Moeller*
17462
17463 * DES CBC did not update the IV. Weird.
17464
17465 *Ben Laurie*
17466lse
17467 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
17468 Changing the behaviour of the former might break existing programs --
17469 where IV updating is needed, des_ncbc_encrypt can be used.
17470ndif
17471
17472 * When bntest is run from "make test" it drives bc to check its
17473 calculations, as well as internally checking them. If an internal check
17474 fails, it needs to cause bc to give a non-zero result or make test carries
17475 on without noticing the failure. Fixed.
17476
17477 *Ben Laurie*
17478
17479 * DES library cleanups.
17480
17481 *Ulf Möller*
17482
17483 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
17484 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
17485 ciphers. NOTE: although the key derivation function has been verified
17486 against some published test vectors it has not been extensively tested
17487 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
17488 of v2.0.
17489
17490 *Steve Henson*
17491
17492 * Instead of "mkdir -p", which is not fully portable, use new
17493 Perl script "util/mkdir-p.pl".
17494
17495 *Bodo Moeller*
17496
17497 * Rewrite the way password based encryption (PBE) is handled. It used to
17498 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
17499 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
17500 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
17501 the 'parameter' field of the AlgorithmIdentifier is passed to the
17502 underlying key generation function so it must do its own ASN1 parsing.
17503 This has also changed the EVP_PBE_CipherInit() function which now has a
17504 'parameter' argument instead of literal salt and iteration count values
17505 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
17506
17507 *Steve Henson*
17508
17509 * Support for PKCS#5 v1.5 compatible password based encryption algorithms
17510 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
17511 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
17512 KEY" because this clashed with PKCS#8 unencrypted string. Since this
17513 value was just used as a "magic string" and not used directly its
17514 value doesn't matter.
17515
17516 *Steve Henson*
17517
17518 * Introduce some semblance of const correctness to BN. Shame C doesn't
17519 support mutable.
17520
17521 *Ben Laurie*
17522
17523 * "linux-sparc64" configuration (ultrapenguin).
17524
17525 *Ray Miller <[email protected]>*
17526 "linux-sparc" configuration.
17527
17528 *Christian Forster <[email protected]>*
17529
17530 * config now generates no-xxx options for missing ciphers.
17531
17532 *Ulf Möller*
17533
17534 * Support the EBCDIC character set (work in progress).
17535 File ebcdic.c not yet included because it has a different license.
17536
17537 *Martin Kraemer <[email protected]>*
17538
17539 * Support BS2000/OSD-POSIX.
17540
17541 *Martin Kraemer <[email protected]>*
17542
17543 * Make callbacks for key generation use `void *` instead of `char *`.
17544
17545 *Ben Laurie*
17546
17547 * Make S/MIME samples compile (not yet tested).
17548
17549 *Ben Laurie*
17550
17551 * Additional typesafe stacks.
17552
17553 *Ben Laurie*
17554
17555 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
17556
17557 *Bodo Moeller*
17558
17559### Changes between 0.9.3 and 0.9.3a [29 May 1999]
17560
17561 * New configuration variant "sco5-gcc".
17562
17563 * Updated some demos.
17564
17565 *Sean O Riordain, Wade Scholine*
17566
17567 * Add missing BIO_free at exit of pkcs12 application.
17568
17569 *Wu Zhigang*
17570
17571 * Fix memory leak in conf.c.
17572
17573 *Steve Henson*
17574
17575 * Updates for Win32 to assembler version of MD5.
17576
17577 *Steve Henson*
17578
17579 * Set #! path to perl in `apps/der_chop` to where we found it
17580 instead of using a fixed path.
17581
17582 *Bodo Moeller*
17583
17584 * SHA library changes for irix64-mips4-cc.
17585
17586 *Andy Polyakov*
17587
17588 * Improvements for VMS support.
17589
17590 *Richard Levitte*
17591
17592### Changes between 0.9.2b and 0.9.3 [24 May 1999]
17593
17594 * Bignum library bug fix. IRIX 6 passes "make test" now!
17595 This also avoids the problems with SC4.2 and unpatched SC5.
17596
17597 *Andy Polyakov <[email protected]>*
17598
17599 * New functions sk_num, sk_value and sk_set to replace the previous macros.
17600 These are required because of the typesafe stack would otherwise break
17601 existing code. If old code used a structure member which used to be STACK
17602 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
17603 sk_num or sk_value it would produce an error because the num, data members
17604 are not present in STACK_OF. Now it just produces a warning. sk_set
17605 replaces the old method of assigning a value to sk_value
17606 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
17607 that does this will no longer work (and should use sk_set instead) but
17608 this could be regarded as a "questionable" behaviour anyway.
17609
17610 *Steve Henson*
17611
17612 * Fix most of the other PKCS#7 bugs. The "experimental" code can now
17613 correctly handle encrypted S/MIME data.
17614
17615 *Steve Henson*
17616
17617 * Change type of various DES function arguments from des_cblock
17618 (which means, in function argument declarations, pointer to char)
17619 to des_cblock * (meaning pointer to array with 8 char elements),
17620 which allows the compiler to do more typechecking; it was like
17621 that back in SSLeay, but with lots of ugly casts.
17622
17623 Introduce new type const_des_cblock.
17624
17625 *Bodo Moeller*
17626
17627 * Reorganise the PKCS#7 library and get rid of some of the more obvious
17628 problems: find RecipientInfo structure that matches recipient certificate
17629 and initialise the ASN1 structures properly based on passed cipher.
17630
17631 *Steve Henson*
17632
17633 * Belatedly make the BN tests actually check the results.
17634
17635 *Ben Laurie*
17636
17637 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
17638 to and from BNs: it was completely broken. New compilation option
17639 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
17640 key elements as negative integers.
17641
17642 *Steve Henson*
17643
17644 * Reorganize and speed up MD5.
17645
17646 *Andy Polyakov <[email protected]>*
17647
17648 * VMS support.
17649
17650 *Richard Levitte <[email protected]>*
17651
17652 * New option -out to asn1parse to allow the parsed structure to be
17653 output to a file. This is most useful when combined with the -strparse
17654 option to examine the output of things like OCTET STRINGS.
17655
17656 *Steve Henson*
17657
17658 * Make SSL library a little more fool-proof by not requiring any longer
17659 that `SSL_set_{accept,connect}_state` be called before
17660 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted
17661 in many applications because usually everything *appeared* to work as
17662 intended anyway -- now it really works as intended).
17663
17664 *Bodo Moeller*
17665
17666 * Move openssl.cnf out of lib/.
17667
17668 *Ulf Möller*
17669
17670 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall
17671 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
17672 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+
17673
17674 *Ralf S. Engelschall*
17675
17676 * Various fixes to the EVP and PKCS#7 code. It may now be able to
17677 handle PKCS#7 enveloped data properly.
17678
17679 *Sebastian Akerman <[email protected]>, modified by Steve*
17680
17681 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
17682 copying pointers. The cert_st handling is changed by this in
17683 various ways (and thus what used to be known as ctx->default_cert
17684 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert`
17685 any longer when s->cert does not give us what we need).
17686 ssl_cert_instantiate becomes obsolete by this change.
17687 As soon as we've got the new code right (possibly it already is?),
17688 we have solved a couple of bugs of the earlier code where s->cert
17689 was used as if it could not have been shared with other SSL structures.
17690
17691 Note that using the SSL API in certain dirty ways now will result
17692 in different behaviour than observed with earlier library versions:
17693 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx)
17694 does not influence s as it used to.
17695
17696 In order to clean up things more thoroughly, inside SSL_SESSION
17697 we don't use CERT any longer, but a new structure SESS_CERT
17698 that holds per-session data (if available); currently, this is
17699 the peer's certificate chain and, for clients, the server's certificate
17700 and temporary key. CERT holds only those values that can have
17701 meaningful defaults in an SSL_CTX.
17702
17703 *Bodo Moeller*
17704
17705 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
17706 from the internal representation. Various PKCS#7 fixes: remove some
17707 evil casts and set the enc_dig_alg field properly based on the signing
17708 key type.
17709
17710 *Steve Henson*
17711
17712 * Allow PKCS#12 password to be set from the command line or the
17713 environment. Let 'ca' get its config file name from the environment
17714 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
17715 and 'x509').
17716
17717 *Steve Henson*
17718
17719 * Allow certificate policies extension to use an IA5STRING for the
17720 organization field. This is contrary to the PKIX definition but
17721 VeriSign uses it and IE5 only recognises this form. Document 'x509'
17722 extension option.
17723
17724 *Steve Henson*
17725
17726 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
17727 without disallowing inline assembler and the like for non-pedantic builds.
17728
17729 *Ben Laurie*
17730
17731 * Support Borland C++ builder.
17732
17733 *Janez Jere <[email protected]>, modified by Ulf Möller*
17734
17735 * Support Mingw32.
17736
17737 *Ulf Möller*
17738
17739 * SHA-1 cleanups and performance enhancements.
17740
17741 *Andy Polyakov <[email protected]>*
17742
17743 * Sparc v8plus assembler for the bignum library.
17744
17745 *Andy Polyakov <[email protected]>*
17746
17747 * Accept any -xxx and +xxx compiler options in Configure.
17748
17749 *Ulf Möller*
17750
17751 * Update HPUX configuration.
17752
17753 *Anonymous*
17754
17755 * Add missing `sk_<type>_unshift()` function to safestack.h
17756
17757 *Ralf S. Engelschall*
17758
17759 * New function SSL_CTX_use_certificate_chain_file that sets the
17760 "extra_cert"s in addition to the certificate. (This makes sense
17761 only for "PEM" format files, as chains as a whole are not
17762 DER-encoded.)
17763
17764 *Bodo Moeller*
17765
17766 * Support verify_depth from the SSL API.
17767 x509_vfy.c had what can be considered an off-by-one-error:
17768 Its depth (which was not part of the external interface)
17769 was actually counting the number of certificates in a chain;
17770 now it really counts the depth.
17771
17772 *Bodo Moeller*
17773
17774 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
17775 instead of X509err, which often resulted in confusing error
17776 messages since the error codes are not globally unique
17777 (e.g. an alleged error in ssl3_accept when a certificate
17778 didn't match the private key).
17779
17780 * New function SSL_CTX_set_session_id_context that allows to set a default
17781 value (so that you don't need SSL_set_session_id_context for each
17782 connection using the SSL_CTX).
17783
17784 *Bodo Moeller*
17785
17786 * OAEP decoding bug fix.
17787
17788 *Ulf Möller*
17789
17790 * Support INSTALL_PREFIX for package builders, as proposed by
17791 David Harris.
17792
17793 *Bodo Moeller*
17794
17795 * New Configure options "threads" and "no-threads". For systems
17796 where the proper compiler options are known (currently Solaris
17797 and Linux), "threads" is the default.
17798
17799 *Bodo Moeller*
17800
17801 * New script util/mklink.pl as a faster substitute for util/mklink.sh.
17802
17803 *Bodo Moeller*
17804
17805 * Install various scripts to $(OPENSSLDIR)/misc, not to
17806 $(INSTALLTOP)/bin -- they shouldn't clutter directories
17807 such as /usr/local/bin.
17808
17809 *Bodo Moeller*
17810
17811 * "make linux-shared" to build shared libraries.
17812
17813 *Niels Poppe <[email protected]>*
17814
17815 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...).
17816
17817 *Ulf Möller*
17818
17819 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
17820 extension adding in x509 utility.
17821
17822 *Steve Henson*
17823
17824 * Remove NOPROTO sections and error code comments.
17825
17826 *Ulf Möller*
17827
17828 * Partial rewrite of the DEF file generator to now parse the ANSI
17829 prototypes.
17830
17831 *Steve Henson*
17832
17833 * New Configure options --prefix=DIR and --openssldir=DIR.
17834
17835 *Ulf Möller*
17836
17837 * Complete rewrite of the error code script(s). It is all now handled
17838 by one script at the top level which handles error code gathering,
17839 header rewriting and C source file generation. It should be much better
17840 than the old method: it now uses a modified version of Ulf's parser to
17841 read the ANSI prototypes in all header files (thus the old K&R definitions
17842 aren't needed for error creation any more) and do a better job of
17843 translating function codes into names. The old 'ASN1 error code embedded
17844 in a comment' is no longer necessary and it doesn't use .err files which
17845 have now been deleted. Also the error code call doesn't have to appear all
17846 on one line (which resulted in some large lines...).
17847
17848 *Steve Henson*
17849
17850 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`.
17851
17852 *Bodo Moeller*
17853
17854 * Change behaviour of ssl2_read when facing length-0 packets: Don't return
17855 0 (which usually indicates a closed connection), but continue reading.
17856
17857 *Bodo Moeller*
17858
17859 * Fix some race conditions.
17860
17861 *Bodo Moeller*
17862
17863 * Add support for CRL distribution points extension. Add Certificate
17864 Policies and CRL distribution points documentation.
17865
17866 *Steve Henson*
17867
17868 * Move the autogenerated header file parts to crypto/opensslconf.h.
17869
17870 *Ulf Möller*
17871
17872 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
17873 8 of keying material. Merlin has also confirmed interop with this fix
17874 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
17875
17876 *Merlin Hughes <[email protected]>*
17877
17878 * Fix lots of warnings.
17879
17880 *Richard Levitte <[email protected]>*
17881
17882 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
17883 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
17884
17885 *Richard Levitte <[email protected]>*
17886
17887 * Fix problems with sizeof(long) == 8.
17888
17889 *Andy Polyakov <[email protected]>*
17890
17891 * Change functions to ANSI C.
17892
17893 *Ulf Möller*
17894
17895 * Fix typos in error codes.
17896
17897 *Martin Kraemer <[email protected]>, Ulf Möller*
17898
17899 * Remove defunct assembler files from Configure.
17900
17901 *Ulf Möller*
17902
17903 * SPARC v8 assembler BIGNUM implementation.
17904
17905 *Andy Polyakov <[email protected]>*
17906
17907 * Support for Certificate Policies extension: both print and set.
17908 Various additions to support the r2i method this uses.
17909
17910 *Steve Henson*
17911
17912 * A lot of constification, and fix a bug in X509_NAME_oneline() that could
17913 return a const string when you are expecting an allocated buffer.
17914
17915 *Ben Laurie*
17916
17917 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
17918 types DirectoryString and DisplayText.
17919
17920 *Steve Henson*
17921
17922 * Add code to allow r2i extensions to access the configuration database,
17923 add an LHASH database driver and add several ctx helper functions.
17924
17925 *Steve Henson*
17926
17927 * Fix an evil bug in bn_expand2() which caused various BN functions to
17928 fail when they extended the size of a BIGNUM.
17929
17930 *Steve Henson*
17931
17932 * Various utility functions to handle SXNet extension. Modify mkdef.pl to
17933 support typesafe stack.
17934
17935 *Steve Henson*
17936
17937 * Fix typo in SSL_[gs]et_options().
17938
17939 *Nils Frostberg <[email protected]>*
17940
17941 * Delete various functions and files that belonged to the (now obsolete)
17942 old X509V3 handling code.
17943
17944 *Steve Henson*
17945
17946 * New Configure option "rsaref".
17947
17948 *Ulf Möller*
17949
17950 * Don't auto-generate pem.h.
17951
17952 *Bodo Moeller*
17953
17954 * Introduce type-safe ASN.1 SETs.
17955
17956 *Ben Laurie*
17957
17958 * Convert various additional casted stacks to type-safe STACK_OF() variants.
17959
17960 *Ben Laurie, Ralf S. Engelschall, Steve Henson*
17961
17962 * Introduce type-safe STACKs. This will almost certainly break lots of code
17963 that links with OpenSSL (well at least cause lots of warnings), but fear
17964 not: the conversion is trivial, and it eliminates loads of evil casts. A
17965 few STACKed things have been converted already. Feel free to convert more.
17966 In the fullness of time, I'll do away with the STACK type altogether.
17967
17968 *Ben Laurie*
17969
17970 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate
17971 specified in `<certfile>` by updating the entry in the index.txt file.
17972 This way one no longer has to edit the index.txt file manually for
17973 revoking a certificate. The -revoke option does the gory details now.
17974
17975 *Massimiliano Pala <[email protected]>, Ralf S. Engelschall*
17976
17977 * Fix `openssl crl -noout -text` combination where `-noout` killed the
17978 `-text` option at all and this way the `-noout -text` combination was
17979 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`.
17980
17981 *Ralf S. Engelschall*
17982
17983 * Make sure a corresponding plain text error message exists for the
17984 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
17985 verify callback function determined that a certificate was revoked.
17986
17987 *Ralf S. Engelschall*
17988
17989 * Bugfix: In test/testenc, don't test `openssl <cipher>` for
17990 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
17991 all available ciphers including rc5, which was forgotten until now.
17992 In order to let the testing shell script know which algorithms
17993 are available, a new (up to now undocumented) command
17994 `openssl list-cipher-commands` is used.
17995
17996 *Bodo Moeller*
17997
17998 * Bugfix: s_client occasionally would sleep in select() when
17999 it should have checked SSL_pending() first.
18000
18001 *Bodo Moeller*
18002
18003 * New functions DSA_do_sign and DSA_do_verify to provide access to
18004 the raw DSA values prior to ASN.1 encoding.
18005
18006 *Ulf Möller*
18007
18008 * Tweaks to Configure
18009
18010 *Niels Poppe <[email protected]>*
18011
18012 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
18013 yet...
18014
18015 *Steve Henson*
18016
18017 * New variables $(RANLIB) and $(PERL) in the Makefiles.
18018
18019 *Ulf Möller*
18020
18021 * New config option to avoid instructions that are illegal on the 80386.
18022 The default code is faster, but requires at least a 486.
18023
18024 *Ulf Möller*
18025
18026 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
18027 SSL2_SERVER_VERSION (not used at all) macros, which are now the
18028 same as SSL2_VERSION anyway.
18029
18030 *Bodo Moeller*
18031
18032 * New "-showcerts" option for s_client.
18033
18034 *Bodo Moeller*
18035
18036 * Still more PKCS#12 integration. Add pkcs12 application to openssl
18037 application. Various cleanups and fixes.
18038
18039 *Steve Henson*
18040
18041 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
18042 modify error routines to work internally. Add error codes and PBE init
18043 to library startup routines.
18044
18045 *Steve Henson*
18046
18047 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and
18048 packing functions to asn1 and evp. Changed function names and error
18049 codes along the way.
18050
18051 *Steve Henson*
18052
18053 * PKCS12 integration: and so it begins... First of several patches to
18054 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
18055 objects to objects.h
18056
18057 *Steve Henson*
18058
18059 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1
18060 and display support for Thawte strong extranet extension.
18061
18062 *Steve Henson*
18063
18064 * Add LinuxPPC support.
18065
18066 *Jeff Dubrule <[email protected]>*
18067
18068 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
18069 bn_div_words in alpha.s.
18070
18071 *Hannes Reinecke <[email protected]> and Ben Laurie*
18072
18073 * Make sure the RSA OAEP test is skipped under -DRSAref because
18074 OAEP isn't supported when OpenSSL is built with RSAref.
18075
18076 *Ulf Moeller <[email protected]>*
18077
18078 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
18079 so they no longer are missing under -DNOPROTO.
18080
18081 *Soren S. Jorvang <[email protected]>*
18082
18083### Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
18084
18085 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
18086 doesn't work when the session is reused. Coming soon!
18087
18088 *Ben Laurie*
18089
18090 * Fix a security hole, that allows sessions to be reused in the wrong
18091 context thus bypassing client cert protection! All software that uses
18092 client certs and session caches in multiple contexts NEEDS PATCHING to
18093 allow session reuse! A fuller solution is in the works.
18094
18095 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)*
18096
18097 * Some more source tree cleanups (removed obsolete files
18098 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
18099 permission on "config" script to be executable) and a fix for the INSTALL
18100 document.
18101
18102 *Ulf Moeller <[email protected]>*
18103
18104 * Remove some legacy and erroneous uses of malloc, free instead of
18105 Malloc, Free.
18106
18107 *Lennart Bang <[email protected]>, with minor changes by Steve*
18108
18109 * Make rsa_oaep_test return non-zero on error.
18110
18111 *Ulf Moeller <[email protected]>*
18112
18113 * Add support for native Solaris shared libraries. Configure
18114 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
18115 if someone would make that last step automatic.
18116
18117 *Matthias Loepfe <[email protected]>*
18118
18119 * ctx_size was not built with the right compiler during "make links". Fixed.
18120
18121 *Ben Laurie*
18122
18123 * Change the meaning of 'ALL' in the cipher list. It now means "everything
18124 except NULL ciphers". This means the default cipher list will no longer
18125 enable NULL ciphers. They need to be specifically enabled e.g. with
18126 the string "DEFAULT:eNULL".
18127
18128 *Steve Henson*
18129
18130 * Fix to RSA private encryption routines: if p < q then it would
18131 occasionally produce an invalid result. This will only happen with
18132 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
18133
18134 *Steve Henson*
18135
18136 * Be less restrictive and allow also `perl util/perlpath.pl
18137 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`,
18138 because this way one can also use an interpreter named `perl5` (which is
18139 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
18140 installed as `perl`).
18141
18142 *Matthias Loepfe <[email protected]>*
18143
18144 * Let util/clean-depend.pl work also with older Perl 5.00x versions.
18145
18146 *Matthias Loepfe <[email protected]>*
18147
18148 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
18149 advapi32.lib to Win32 build and change the pem test comparison
18150 to fc.exe (thanks to Ulrich Kroener <[email protected]> for the
18151 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
18152 and crypto/des/ede_cbcm_enc.c.
18153
18154 *Steve Henson*
18155
18156 * DES quad checksum was broken on big-endian architectures. Fixed.
18157
18158 *Ben Laurie*
18159
18160 * Comment out two functions in bio.h that aren't implemented. Fix up the
18161 Win32 test batch file so it (might) work again. The Win32 test batch file
18162 is horrible: I feel ill....
18163
18164 *Steve Henson*
18165
18166 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
18167 in e_os.h. Audit of header files to check ANSI and non ANSI
18168 sections: 10 functions were absent from non ANSI section and not exported
18169 from Windows DLLs. Fixed up libeay.num for new functions.
18170
18171 *Steve Henson*
18172
18173 * Make `openssl version` output lines consistent.
18174
18175 *Ralf S. Engelschall*
18176
18177 * Fix Win32 symbol export lists for BIO functions: Added
18178 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
18179 to ms/libeay{16,32}.def.
18180
18181 *Ralf S. Engelschall*
18182
18183 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
18184 fine under Unix and passes some trivial tests I've now added. But the
18185 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
18186 added to make sure no one expects that this stuff really works in the
18187 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
18188 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
18189 openssl_bio.xs.
18190
18191 *Ralf S. Engelschall*
18192
18193 * Fix the generation of two part addresses in perl.
18194
18195 *Kenji Miyake <[email protected]>, integrated by Ben Laurie*
18196
18197 * Add config entry for Linux on MIPS.
18198
18199 *John Tobey <[email protected]>*
18200
18201 * Make links whenever Configure is run, unless we are on Windoze.
18202
18203 *Ben Laurie*
18204
18205 * Permit extensions to be added to CRLs using crl_section in openssl.cnf.
18206 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
18207 in CRLs.
18208
18209 *Steve Henson*
18210
18211 * Add a useful kludge to allow package maintainers to specify compiler and
18212 other platforms details on the command line without having to patch the
18213 Configure script every time: One now can use
18214 `perl Configure <id>:<details>`,
18215 i.e. platform ids are allowed to have details appended
18216 to them (separated by colons). This is treated as there would be a static
18217 pre-configured entry in Configure's %table under key `<id>` with value
18218 `<details>` and `perl Configure <id>` is called. So, when you want to
18219 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
18220 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"`
18221 now, which overrides the FreeBSD-elf entry on-the-fly.
18222
18223 *Ralf S. Engelschall*
18224
18225 * Disable new TLS1 ciphersuites by default: they aren't official yet.
18226
18227 *Ben Laurie*
18228
18229 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
18230 on the `perl Configure ...` command line. This way one can compile
18231 OpenSSL libraries with Position Independent Code (PIC) which is needed
18232 for linking it into DSOs.
18233
18234 *Ralf S. Engelschall*
18235
18236 * Remarkably, export ciphers were totally broken and no-one had noticed!
18237 Fixed.
18238
18239 *Ben Laurie*
18240
18241 * Cleaned up the LICENSE document: The official contact for any license
18242 questions now is the OpenSSL core team under [email protected].
18243 And add a paragraph about the dual-license situation to make sure people
18244 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
18245 to the OpenSSL toolkit.
18246
18247 *Ralf S. Engelschall*
18248
18249 * General source tree makefile cleanups: Made `making xxx in yyy...`
18250 display consistent in the source tree and replaced `/bin/rm` by `rm`.
18251 Additionally cleaned up the `make links` target: Remove unnecessary
18252 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
18253 to speed processing and no longer clutter the display with confusing
18254 stuff. Instead only the actually done links are displayed.
18255
18256 *Ralf S. Engelschall*
18257
18258 * Permit null encryption ciphersuites, used for authentication only. It used
18259 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
18260 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
18261 encryption.
18262
18263 *Ben Laurie*
18264
18265 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
18266 signed attributes when verifying signatures (this would break them),
18267 the detached data encoding was wrong and public keys obtained using
18268 X509_get_pubkey() weren't freed.
18269
18270 *Steve Henson*
18271
18272 * Add text documentation for the BUFFER functions. Also added a work around
18273 to a Win95 console bug. This was triggered by the password read stuff: the
18274 last character typed gets carried over to the next fread(). If you were
18275 generating a new cert request using 'req' for example then the last
18276 character of the passphrase would be CR which would then enter the first
18277 field as blank.
18278
18279 *Steve Henson*
18280
18281 * Added the new 'Includes OpenSSL Cryptography Software' button as
18282 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
18283 button and can be used by applications based on OpenSSL to show the
18284 relationship to the OpenSSL project.
18285
18286 *Ralf S. Engelschall*
18287
18288 * Remove confusing variables in function signatures in files
18289 ssl/ssl_lib.c and ssl/ssl.h.
18290
18291 *Lennart Bong <[email protected]>*
18292
18293 * Don't install bss_file.c under PREFIX/include/
18294
18295 *Lennart Bong <[email protected]>*
18296
18297 * Get the Win32 compile working again. Modify mkdef.pl so it can handle
18298 functions that return function pointers and has support for NT specific
18299 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
18300 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
18301 unsigned to signed types: this was killing the Win32 compile.
18302
18303 *Steve Henson*
18304
18305 * Add new certificate file to stack functions,
18306 SSL_add_dir_cert_subjects_to_stack() and
18307 SSL_add_file_cert_subjects_to_stack(). These largely supplant
18308 SSL_load_client_CA_file(), and can be used to add multiple certs easily
18309 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
18310 This means that Apache-SSL and similar packages don't have to mess around
18311 to add as many CAs as they want to the preferred list.
18312
18313 *Ben Laurie*
18314
18315 * Experiment with doxygen documentation. Currently only partially applied to
18316 ssl/ssl_lib.c.
18317 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with
18318 openssl.doxy as the configuration file.
18319
18320 *Ben Laurie*
18321
18322 * Get rid of remaining C++-style comments which strict C compilers hate.
18323
18324 *Ralf S. Engelschall, pointed out by Carlos Amengual*
18325
18326 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
18327 compiled in by default: it has problems with large keys.
18328
18329 *Steve Henson*
18330
18331 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
18332 DH private keys and/or callback functions which directly correspond to
18333 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
18334 is needed for applications which have to configure certificates on a
18335 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
18336 (e.g. s_server).
18337 For the RSA certificate situation is makes no difference, but
18338 for the DSA certificate situation this fixes the "no shared cipher"
18339 problem where the OpenSSL cipher selection procedure failed because the
18340 temporary keys were not overtaken from the context and the API provided
18341 no way to reconfigure them.
18342 The new functions now let applications reconfigure the stuff and they
18343 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
18344 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
18345 non-public-API function ssl_cert_instantiate() is used as a helper
18346 function and also to reduce code redundancy inside ssl_rsa.c.
18347
18348 *Ralf S. Engelschall*
18349
18350 * Move s_server -dcert and -dkey options out of the undocumented feature
18351 area because they are useful for the DSA situation and should be
18352 recognized by the users.
18353
18354 *Ralf S. Engelschall*
18355
18356 * Fix the cipher decision scheme for export ciphers: the export bits are
18357 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
18358 SSL_EXP_MASK. So, the original variable has to be used instead of the
18359 already masked variable.
18360
18361 *Richard Levitte <[email protected]>*
18362
18363 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c
18364
18365 *Richard Levitte <[email protected]>*
18366
18367 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
18368 from `int` to `unsigned int` because it is a length and initialized by
18369 EVP_DigestFinal() which expects an `unsigned int *`.
18370
18371 *Richard Levitte <[email protected]>*
18372
18373 * Don't hard-code path to Perl interpreter on shebang line of Configure
18374 script. Instead use the usual Shell->Perl transition trick.
18375
18376 *Ralf S. Engelschall*
18377
18378 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates
18379 (in addition to RSA certificates) to match the behaviour of `openssl dsa
18380 -noout -modulus` as it's already the case for `openssl rsa -noout
18381 -modulus`. For RSA the -modulus is the real "modulus" while for DSA
18382 currently the public key is printed (a decision which was already done by
18383 `openssl dsa -modulus` in the past) which serves a similar purpose.
18384 Additionally the NO_RSA no longer completely removes the whole -modulus
18385 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
18386 now, too.
18387
18388 *Ralf S. Engelschall*
18389
18390 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
18391 BIO. See the source (crypto/evp/bio_ok.c) for more info.
18392
18393 *Arne Ansper <[email protected]>*
18394
18395 * Dump the old yucky req code that tried (and failed) to allow raw OIDs
18396 to be added. Now both 'req' and 'ca' can use new objects defined in the
18397 config file.
18398
18399 *Steve Henson*
18400
18401 * Add cool BIO that does syslog (or event log on NT).
18402
18403 *Arne Ansper <[email protected]>, integrated by Ben Laurie*
18404
18405 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
18406 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
18407 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
18408 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
18409
18410 *Ben Laurie*
18411
18412 * Add preliminary config info for new extension code.
18413
18414 *Steve Henson*
18415
18416 * Make RSA_NO_PADDING really use no padding.
18417
18418 *Ulf Moeller <[email protected]>*
18419
18420 * Generate errors when private/public key check is done.
18421
18422 *Ben Laurie*
18423
18424 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
18425 for some CRL extensions and new objects added.
18426
18427 *Steve Henson*
18428
18429 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private
18430 key usage extension and fuller support for authority key id.
18431
18432 *Steve Henson*
18433
18434 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
18435 padding method for RSA, which is recommended for new applications in PKCS
18436 #1 v2.0 (RFC 2437, October 1998).
18437 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
18438 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
18439 against Bleichbacher's attack on RSA.
18440 *Ulf Moeller <[email protected]>, reformatted, corrected and integrated by
18441 Ben Laurie*
18442
18443 * Updates to the new SSL compression code
18444
18445 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)*
18446
18447 * Fix so that the version number in the master secret, when passed
18448 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
18449 (because the server will not accept higher), that the version number
18450 is 0x03,0x01, not 0x03,0x00
18451
18452 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)*
18453
18454 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory
18455 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes
18456 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`.
18457
18458 *Steve Henson*
18459
18460 * Support for RAW extensions where an arbitrary extension can be
18461 created by including its DER encoding. See `apps/openssl.cnf` for
18462 an example.
18463
18464 *Steve Henson*
18465
18466 * Make sure latest Perl versions don't interpret some generated C array
18467 code as Perl array code in the crypto/err/err_genc.pl script.
18468
18469 *Lars Weber <[email protected]>*
18470
18471 * Modify ms/do_ms.bat to not generate assembly language makefiles since
18472 not many people have the assembler. Various Win32 compilation fixes and
18473 update to the INSTALL.W32 file with (hopefully) more accurate Win32
18474 build instructions.
18475
18476 *Steve Henson*
18477
18478 * Modify configure script 'Configure' to automatically create crypto/date.h
18479 file under Win32 and also build pem.h from pem.org. New script
18480 util/mkfiles.pl to create the MINFO file on environments that can't do a
18481 'make files': perl util/mkfiles.pl >MINFO should work.
18482
18483 *Steve Henson*
18484
18485 * Major rework of DES function declarations, in the pursuit of correctness
18486 and purity. As a result, many evil casts evaporated, and some weirdness,
18487 too. You may find this causes warnings in your code. Zapping your evil
18488 casts will probably fix them. Mostly.
18489
18490 *Ben Laurie*
18491
18492 * Fix for a typo in asn1.h. Bug fix to object creation script
18493 obj_dat.pl. It considered a zero in an object definition to mean
18494 "end of object": none of the objects in objects.h have any zeros
18495 so it wasn't spotted.
18496
18497 *Steve Henson, reported by Erwann ABALEA <[email protected]>*
18498
18499 * Add support for Triple DES Cipher Block Chaining with Output Feedback
18500 Masking (CBCM). In the absence of test vectors, the best I have been able
18501 to do is check that the decrypt undoes the encrypt, so far. Send me test
18502 vectors if you have them.
18503
18504 *Ben Laurie*
18505
18506 * Correct calculation of key length for export ciphers (too much space was
18507 allocated for null ciphers). This has not been tested!
18508
18509 *Ben Laurie*
18510
18511 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage
18512 message is now correct (it understands "crypto" and "ssl" on its
18513 command line). There is also now an "update" option. This will update
18514 the util/ssleay.num and util/libeay.num files with any new functions.
18515 If you do a:
18516 perl util/mkdef.pl crypto ssl update
18517 it will update them.
18518
18519 *Steve Henson*
18520
18521 * Overhauled the Perl interface:
18522 - ported BN stuff to OpenSSL's different BN library
18523 - made the perl/ source tree CVS-aware
18524 - renamed the package from SSLeay to OpenSSL (the files still contain
18525 their history because I've copied them in the repository)
18526 - removed obsolete files (the test scripts will be replaced
18527 by better Test::Harness variants in the future)
18528
18529 *Ralf S. Engelschall*
18530
18531 * First cut for a very conservative source tree cleanup:
18532 1. merge various obsolete readme texts into doc/ssleay.txt
18533 where we collect the old documents and readme texts.
18534 2. remove the first part of files where I'm already sure that we no
18535 longer need them because of three reasons: either they are just temporary
18536 files which were left by Eric or they are preserved original files where
18537 I've verified that the diff is also available in the CVS via "cvs diff
18538 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
18539 the crypto/md/ stuff).
18540
18541 *Ralf S. Engelschall*
18542
18543 * More extension code. Incomplete support for subject and issuer alt
18544 name, issuer and authority key id. Change the i2v function parameters
18545 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
18546 what that's for :-) Fix to ASN1 macro which messed up
18547 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
18548
18549 *Steve Henson*
18550
18551 * Preliminary support for ENUMERATED type. This is largely copied from the
18552 INTEGER code.
18553
18554 *Steve Henson*
18555
18556 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
18557
18558 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)*
18559
18560 * Make sure `make rehash` target really finds the `openssl` program.
18561
18562 *Ralf S. Engelschall, Matthias Loepfe <[email protected]>*
18563
18564 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
18565 like to hear about it if this slows down other processors.
18566
18567 *Ben Laurie*
18568
18569 * Add CygWin32 platform information to Configure script.
18570
18571 *Alan Batie <[email protected]>*
18572
18573 * Fixed ms/32all.bat script: `no_asm` -> `no-asm`
18574
18575 *Rainer W. Gerling <[email protected]>*
18576
18577 * New program nseq to manipulate netscape certificate sequences
18578
18579 *Steve Henson*
18580
18581 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
18582 few typos.
18583
18584 *Steve Henson*
18585
18586 * Fixes to BN code. Previously the default was to define BN_RECURSION
18587 but the BN code had some problems that would cause failures when
18588 doing certificate verification and some other functions.
18589
18590 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)*
18591
18592 * Add ASN1 and PEM code to support netscape certificate sequences.
18593
18594 *Steve Henson*
18595
18596 * Add ASN1 and PEM code to support netscape certificate sequences.
18597
18598 *Steve Henson*
18599
18600 * Add several PKIX and private extended key usage OIDs.
18601
18602 *Steve Henson*
18603
18604 * Modify the 'ca' program to handle the new extension code. Modify
18605 openssl.cnf for new extension format, add comments.
18606
18607 *Steve Henson*
18608
18609 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
18610 and add a sample to openssl.cnf so req -x509 now adds appropriate
18611 CA extensions.
18612
18613 *Steve Henson*
18614
18615 * Continued X509 V3 changes. Add to other makefiles, integrate with the
18616 error code, add initial support to X509_print() and x509 application.
18617
18618 *Steve Henson*
18619
18620 * Takes a deep breath and start adding X509 V3 extension support code. Add
18621 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
18622 stuff is currently isolated and isn't even compiled yet.
18623
18624 *Steve Henson*
18625
18626 * Continuing patches for GeneralizedTime. Fix up certificate and CRL
18627 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
18628 Removed the versions check from X509 routines when loading extensions:
18629 this allows certain broken certificates that don't set the version
18630 properly to be processed.
18631
18632 *Steve Henson*
18633
18634 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
18635 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
18636 can still be regenerated with "make depend".
18637
18638 *Ben Laurie*
18639
18640 * Spelling mistake in C version of CAST-128.
18641
18642 *Ben Laurie, reported by Jeremy Hylton <[email protected]>*
18643
18644 * Changes to the error generation code. The perl script err-code.pl
18645 now reads in the old error codes and retains the old numbers, only
18646 adding new ones if necessary. It also only changes the .err files if new
18647 codes are added. The makefiles have been modified to only insert errors
18648 when needed (to avoid needlessly modifying header files). This is done
18649 by only inserting errors if the .err file is newer than the auto generated
18650 C file. To rebuild all the error codes from scratch (the old behaviour)
18651 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
18652 or delete all the .err files.
18653
18654 *Steve Henson*
18655
18656 * CAST-128 was incorrectly implemented for short keys. The C version has
18657 been fixed, but is untested. The assembler versions are also fixed, but
18658 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
18659 to regenerate it if needed.
18660 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
18661 Hagino <[email protected]>*
18662
18663 * File was opened incorrectly in randfile.c.
18664
18665 *Ulf Möller <[email protected]>*
18666
18667 * Beginning of support for GeneralizedTime. d2i, i2d, check and print
18668 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
18669 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
18670 al: it's just almost always a UTCTime. Note this patch adds new error
18671 codes so do a "make errors" if there are problems.
18672
18673 *Steve Henson*
18674
18675 * Correct Linux 1 recognition in config.
18676
18677 *Ulf Möller <[email protected]>*
18678
18679 * Remove pointless MD5 hash when using DSA keys in ca.
18680
18681 *Anonymous <[email protected]>*
18682
18683 * Generate an error if given an empty string as a cert directory. Also
18684 generate an error if handed NULL (previously returned 0 to indicate an
18685 error, but didn't set one).
18686
18687 *Ben Laurie, reported by Anonymous <[email protected]>*
18688
18689 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
18690
18691 *Ben Laurie*
18692
18693 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
18694 parameters. This was causing a warning which killed off the Win32 compile.
18695
18696 *Steve Henson*
18697
18698 * Remove C++ style comments from crypto/bn/bn_local.h.
18699
18700 *Neil Costigan <[email protected]>*
18701
18702 * The function OBJ_txt2nid was broken. It was supposed to return a nid
18703 based on a text string, looking up short and long names and finally
18704 "dot" format. The "dot" format stuff didn't work. Added new function
18705 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
18706 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
18707 OID is not part of the table.
18708
18709 *Steve Henson*
18710
18711 * Add prototypes to X509 lookup/verify methods, fixing a bug in
18712 X509_LOOKUP_by_alias().
18713
18714 *Ben Laurie*
18715
18716 * Sort openssl functions by name.
18717
18718 *Ben Laurie*
18719
18720 * Get the `gendsa` command working and add it to the `list` command. Remove
18721 encryption from sample DSA keys (in case anyone is interested the password
18722 was "1234").
18723
18724 *Steve Henson*
18725
18726 * Make *all* `*_free` functions accept a NULL pointer.
18727
18728 *Frans Heymans <[email protected]>*
18729
18730 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use
18731 NULL pointers.
18732
18733 *Anonymous <[email protected]>*
18734
18735 * s_server should send the CAfile as acceptable CAs, not its own cert.
18736
18737 *Bodo Moeller <[email protected]>*
18738
18739 * Don't blow it for numeric `-newkey` arguments to `apps/req`.
18740
18741 *Bodo Moeller <[email protected]>*
18742
18743 * Temp key "for export" tests were wrong in s3_srvr.c.
18744
18745 *Anonymous <[email protected]>*
18746
18747 * Add prototype for temp key callback functions
18748 SSL_CTX_set_tmp_{rsa,dh}_callback().
18749
18750 *Ben Laurie*
18751
18752 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
18753 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
18754
18755 *Steve Henson*
18756
18757 * X509_name_add_entry() freed the wrong thing after an error.
18758
18759 *Arne Ansper <[email protected]>*
18760
18761 * rsa_eay.c would attempt to free a NULL context.
18762
18763 *Arne Ansper <[email protected]>*
18764
18765 * BIO_s_socket() had a broken should_retry() on Windoze.
18766
18767 *Arne Ansper <[email protected]>*
18768
18769 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
18770
18771 *Arne Ansper <[email protected]>*
18772
18773 * Make sure the already existing X509_STORE->depth variable is initialized
18774 in X509_STORE_new(), but document the fact that this variable is still
18775 unused in the certificate verification process.
18776
18777 *Ralf S. Engelschall*
18778
18779 * Fix the various library and `apps/` files to free up pkeys obtained from
18780 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
18781
18782 *Steve Henson*
18783
18784 * Fix reference counting in X509_PUBKEY_get(). This makes
18785 demos/maurice/example2.c work, amongst others, probably.
18786
18787 *Steve Henson and Ben Laurie*
18788
18789 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named
18790 `openssl` and second, the shortcut symlinks for the `openssl <command>`
18791 are no longer created. This way we have a single and consistent command
18792 line interface `openssl <command>`, similar to `cvs <command>`.
18793
18794 *Ralf S. Engelschall, Paul Sutton and Ben Laurie*
18795
18796 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
18797 BIT STRING wrapper always have zero unused bits.
18798
18799 *Steve Henson*
18800
18801 * Add CA.pl, perl version of CA.sh, add extended key usage OID.
18802
18803 *Steve Henson*
18804
18805 * Make the top-level INSTALL documentation easier to understand.
18806
18807 *Paul Sutton*
18808
18809 * Makefiles updated to exit if an error occurs in a sub-directory
18810 make (including if user presses ^C) [Paul Sutton]
18811
18812 * Make Montgomery context stuff explicit in RSA data structure.
18813
18814 *Ben Laurie*
18815
18816 * Fix build order of pem and err to allow for generated pem.h.
18817
18818 *Ben Laurie*
18819
18820 * Fix renumbering bug in X509_NAME_delete_entry().
18821
18822 *Ben Laurie*
18823
18824 * Enhanced the err-ins.pl script so it makes the error library number
18825 global and can add a library name. This is needed for external ASN1 and
18826 other error libraries.
18827
18828 *Steve Henson*
18829
18830 * Fixed sk_insert which never worked properly.
18831
18832 *Steve Henson*
18833
18834 * Fix ASN1 macros so they can handle indefinite length constructed
18835 EXPLICIT tags. Some non standard certificates use these: they can now
18836 be read in.
18837
18838 *Steve Henson*
18839
18840 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
18841 into a single doc/ssleay.txt bundle. This way the information is still
18842 preserved but no longer messes up this directory. Now it's new room for
18843 the new set of documentation files.
18844
18845 *Ralf S. Engelschall*
18846
18847 * SETs were incorrectly DER encoded. This was a major pain, because they
18848 shared code with SEQUENCEs, which aren't coded the same. This means that
18849 almost everything to do with SETs or SEQUENCEs has either changed name or
18850 number of arguments.
18851
18852 *Ben Laurie, based on a partial fix by GP Jayan <[email protected]>*
18853
18854 * Fix test data to work with the above.
18855
18856 *Ben Laurie*
18857
18858 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
18859 was already fixed by Eric for 0.9.1 it seems.
18860
18861 *Ben Laurie - pointed out by Ulf Möller <[email protected]>*
18862
18863 * Autodetect FreeBSD3.
18864
18865 *Ben Laurie*
18866
18867 * Fix various bugs in Configure. This affects the following platforms:
18868 nextstep
18869 ncr-scde
18870 unixware-2.0
18871 unixware-2.0-pentium
18872 sco5-cc.
18873
18874 *Ben Laurie*
18875
18876 * Eliminate generated files from CVS. Reorder tests to regenerate files
18877 before they are needed.
18878
18879 *Ben Laurie*
18880
18881 * Generate Makefile.ssl from Makefile.org (to keep CVS happy).
18882
18883 *Ben Laurie*
18884
18885### Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
18886
18887 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
18888 changed SSLeay to OpenSSL in version strings.
18889
18890 *Ralf S. Engelschall*
18891
18892 * Some fixups to the top-level documents.
18893
18894 *Paul Sutton*
18895
18896 * Fixed the nasty bug where rsaref.h was not found under compile-time
18897 because the symlink to include/ was missing.
18898
18899 *Ralf S. Engelschall*
18900
18901 * Incorporated the popular no-RSA/DSA-only patches
18902 which allow to compile a RSA-free SSLeay.
18903
18904 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall*
18905
18906 * Fixed nasty rehash problem under `make -f Makefile.ssl links`
18907 when "ssleay" is still not found.
18908
18909 *Ralf S. Engelschall*
18910
18911 * Added more platforms to Configure: Cray T3E, HPUX 11,
18912
18913 *Ralf S. Engelschall, Beckmann <[email protected]>*
18914
18915 * Updated the README file.
18916
18917 *Ralf S. Engelschall*
18918
18919 * Added various .cvsignore files in the CVS repository subdirs
18920 to make a "cvs update" really silent.
18921
18922 *Ralf S. Engelschall*
18923
18924 * Recompiled the error-definition header files and added
18925 missing symbols to the Win32 linker tables.
18926
18927 *Ralf S. Engelschall*
18928
18929 * Cleaned up the top-level documents;
18930 o new files: CHANGES and LICENSE
18931 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
18932 o merged COPYRIGHT into LICENSE
18933 o removed obsolete TODO file
18934 o renamed MICROSOFT to INSTALL.W32
18935
18936 *Ralf S. Engelschall*
18937
18938 * Removed dummy files from the 0.9.1b source tree:
18939 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
18940 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
18941 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
18942 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
18943 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
18944
18945 *Ralf S. Engelschall*
18946
18947 * Added various platform portability fixes.
18948
18949 *Mark J. Cox*
18950
18951 * The Genesis of the OpenSSL rpject:
18952 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
18953 Young and Tim J. Hudson created while they were working for C2Net until
18954 summer 1998.
18955
18956 *The OpenSSL Project*
18957
18958### Changes between 0.9.0b and 0.9.1b [not released]
18959
18960 * Updated a few CA certificates under certs/
18961
18962 *Eric A. Young*
18963
18964 * Changed some BIGNUM api stuff.
18965
18966 *Eric A. Young*
18967
18968 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
18969 DGUX x86, Linux Alpha, etc.
18970
18971 *Eric A. Young*
18972
18973 * New COMP library [crypto/comp/] for SSL Record Layer Compression:
18974 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
18975 available).
18976
18977 *Eric A. Young*
18978
18979 * Add -strparse option to asn1pars program which parses nested
18980 binary structures
18981
18982 *Dr Stephen Henson <[email protected]>*
18983
18984 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
18985
18986 *Eric A. Young*
18987
18988 * DSA fix for "ca" program.
18989
18990 *Eric A. Young*
18991
18992 * Added "-genkey" option to "dsaparam" program.
18993
18994 *Eric A. Young*
18995
18996 * Added RIPE MD160 (rmd160) message digest.
18997
18998 *Eric A. Young*
18999
19000 * Added -a (all) option to "ssleay version" command.
19001
19002 *Eric A. Young*
19003
19004 * Added PLATFORM define which is the id given to Configure.
19005
19006 *Eric A. Young*
19007
19008 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
19009
19010 *Eric A. Young*
19011
19012 * Extended the ASN.1 parser routines.
19013
19014 *Eric A. Young*
19015
19016 * Extended BIO routines to support REUSEADDR, seek, tell, etc.
19017
19018 *Eric A. Young*
19019
19020 * Added a BN_CTX to the BN library.
19021
19022 *Eric A. Young*
19023
19024 * Fixed the weak key values in DES library
19025
19026 *Eric A. Young*
19027
19028 * Changed API in EVP library for cipher aliases.
19029
19030 *Eric A. Young*
19031
19032 * Added support for RC2/64bit cipher.
19033
19034 *Eric A. Young*
19035
19036 * Converted the lhash library to the crypto/mem.c functions.
19037
19038 *Eric A. Young*
19039
19040 * Added more recognized ASN.1 object ids.
19041
19042 *Eric A. Young*
19043
19044 * Added more RSA padding checks for SSL/TLS.
19045
19046 *Eric A. Young*
19047
19048 * Added BIO proxy/filter functionality.
19049
19050 *Eric A. Young*
19051
19052 * Added extra_certs to SSL_CTX which can be used
19053 send extra CA certificates to the client in the CA cert chain sending
19054 process. It can be configured with SSL_CTX_add_extra_chain_cert().
19055
19056 *Eric A. Young*
19057
19058 * Now Fortezza is denied in the authentication phase because
19059 this is key exchange mechanism is not supported by SSLeay at all.
19060
19061 *Eric A. Young*
19062
19063 * Additional PKCS1 checks.
19064
19065 *Eric A. Young*
19066
19067 * Support the string "TLSv1" for all TLS v1 ciphers.
19068
19069 *Eric A. Young*
19070
19071 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
19072 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
19073
19074 *Eric A. Young*
19075
19076 * Fixed a few memory leaks.
19077
19078 *Eric A. Young*
19079
19080 * Fixed various code and comment typos.
19081
19082 *Eric A. Young*
19083
19084 * A minor bug in ssl/s3_clnt.c where there would always be 4 0
19085 bytes sent in the client random.
19086
19087 *Edward Bishop <[email protected]>*
19088
19089<!-- Links -->
19090
19091[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971
19092[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967
19093[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563
19094[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559
19095[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552
19096[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551
19097[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549
19098[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547
19099[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543
19100[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407
19101[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739
19102[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737
19103[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735
19104[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734
19105[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733
19106[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732
19107[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738
19108[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737
19109[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736
19110[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735
19111[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733
19112[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732
19113[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731
19114[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730
19115[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055
19116[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054
19117[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053
19118[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052
19119[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309
19120[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308
19121[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307
19122[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306
19123[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305
19124[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304
19125[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303
19126[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302
19127[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183
19128[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182
19129[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181
19130[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180
19131[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179
19132[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178
19133[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177
19134[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176
19135[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109
19136[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107
19137[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106
19138[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105
19139[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800
19140[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799
19141[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798
19142[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797
19143[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705
19144[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702
19145[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701
19146[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197
19147[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196
19148[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195
19149[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194
19150[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193
19151[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793
19152[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792
19153[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791
19154[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790
19155[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789
19156[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788
19157[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787
19158[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293
19159[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291
19160[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290
19161[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289
19162[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288
19163[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287
19164[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286
19165[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285
19166[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209
19167[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208
19168[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207
19169[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206
19170[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205
19171[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204
19172[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275
19173[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139
19174[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572
19175[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571
19176[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570
19177[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569
19178[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568
19179[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567
19180[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566
19181[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513
19182[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512
19183[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511
19184[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510
19185[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509
19186[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508
19187[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507
19188[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506
19189[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505
19190[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470
19191[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224
19192[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221
19193[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195
19194[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160
19195[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076
19196[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450
19197[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353
19198[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169
19199[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166
19200[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686
19201[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333
19202[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110
19203[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884
19204[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050
19205[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027
19206[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619
19207[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577
19208[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576
19209[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109
19210[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108
19211[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210
19212[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207
19213[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014
19214[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252
19215[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180
19216[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864
19217[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633
19218[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740
19219[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433
19220[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355
19221[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555
19222[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245
19223[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386
19224[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379
19225[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378
19226[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377
19227[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789
19228[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591
19229[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590
19230[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077
19231[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678
19232[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672
19233[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891
19234[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135
19235[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995
19236[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343
19237[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339
19238[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738
19239[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940
19240[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937
19241[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969
19242[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112
19243[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079
19244[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851
19245[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545
19246[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544
19247[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543
19248[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078
19249[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659
19250[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657
19251[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656
19252[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655
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