| 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_desx_cbc
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| 6 | - EVP DES-X cipher
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| 7 |
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| 8 | =head1 SYNOPSIS
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| 9 |
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| 10 | #include <openssl/evp.h>
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| 11 |
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| 12 | const EVP_CIPHER *EVP_desx_cbc(void);
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| 13 |
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| 14 | =head1 DESCRIPTION
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| 15 |
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| 16 | The DES-X encryption algorithm for EVP.
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| 17 |
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| 18 | All modes below use a key length of 128 bits and acts on blocks of 128-bits.
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| 19 |
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| 20 | =over 4
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| 21 |
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| 22 | =item EVP_desx_cbc()
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| 23 |
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| 24 | The DES-X algorithm in CBC mode.
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| 25 |
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| 26 | This algorithm is not provided by the OpenSSL default provider.
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| 27 | To use it is necessary to load either the OpenSSL legacy provider or another
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| 28 | implementation.
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| 29 |
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| 30 | =back
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| 31 |
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| 32 | Developers should be aware of the negative performance implications of
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| 33 | calling this function multiple times and should consider using
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| 34 | L<EVP_CIPHER_fetch(3)> with L<EVP_CIPHER-DES(7)> instead.
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| 35 | See L<crypto(7)/Performance> for further information.
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| 36 |
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| 37 | =head1 RETURN VALUES
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| 38 |
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| 39 | These functions return an B<EVP_CIPHER> structure that contains the
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| 40 | implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
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| 41 | details of the B<EVP_CIPHER> structure.
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| 42 |
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| 43 | =head1 SEE ALSO
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| 44 |
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| 45 | L<evp(7)>,
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| 46 | L<EVP_EncryptInit(3)>,
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| 47 | L<EVP_CIPHER_meth_new(3)>
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| 48 |
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| 49 | =head1 COPYRIGHT
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| 50 |
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| 51 | Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
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| 52 |
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| 53 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 54 | this file except in compliance with the License. You can obtain a copy
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| 55 | in the file LICENSE in the source distribution or at
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| 56 | L<https://www.openssl.org/source/license.html>.
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| 57 |
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| 58 | =cut
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| 59 |
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