| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | EVP_md5,
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| 6 | EVP_md5_sha1
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| 7 | - MD5 For EVP
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| 8 |
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| 9 | =head1 SYNOPSIS
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| 10 |
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| 11 | #include <openssl/evp.h>
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| 12 |
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| 13 | const EVP_MD *EVP_md5(void);
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| 14 | const EVP_MD *EVP_md5_sha1(void);
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| 15 |
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| 16 | =head1 DESCRIPTION
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| 17 |
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| 18 | MD5 is a cryptographic hash function standardized in RFC 1321 and designed by
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| 19 | Ronald Rivest.
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| 20 |
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| 21 | The CMU Software Engineering Institute considers MD5 unsuitable for further
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| 22 | use since its security has been severely compromised.
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| 23 |
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| 24 | =over 4
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| 25 |
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| 26 | =item EVP_md5()
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| 27 |
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| 28 | The MD5 algorithm which produces a 128-bit output from a given input.
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| 29 |
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| 30 | =item EVP_md5_sha1()
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| 31 |
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| 32 | A hash algorithm of SSL v3 that combines MD5 with SHA-1 as described in RFC
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| 33 | 6101.
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| 34 |
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| 35 | WARNING: this algorithm is not intended for non-SSL usage.
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| 36 |
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| 37 | =back
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| 38 |
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| 39 |
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| 40 | =head1 RETURN VALUES
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| 41 |
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| 42 | These functions return a B<EVP_MD> structure that contains the
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| 43 | implementation of the message digest. See L<EVP_MD_meth_new(3)> for
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| 44 | details of the B<EVP_MD> structure.
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| 45 |
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| 46 | =head1 CONFORMING TO
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| 47 |
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| 48 | IETF RFC 1321.
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| 49 |
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| 50 | =head1 SEE ALSO
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| 51 |
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| 52 | L<evp(7)>,
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| 53 | L<EVP_DigestInit(3)>
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| 54 |
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| 55 | =head1 COPYRIGHT
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| 56 |
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| 57 | Copyright 2017-2022 The OpenSSL Project Authors. All Rights Reserved.
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| 58 |
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| 59 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 60 | this file except in compliance with the License. You can obtain a copy
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| 61 | in the file LICENSE in the source distribution or at
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| 62 | L<https://www.openssl.org/source/license.html>.
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| 63 |
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| 64 | =cut
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| 65 |
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