1=pod 2 3=head1 NAME 4 5EVP_desx_cbc 6- EVP DES-X cipher 7 8=head1 SYNOPSIS 9 10 #include <openssl/evp.h> 11 12 const EVP_CIPHER *EVP_desx_cbc(void); 13 14=head1 DESCRIPTION 15 16The DES-X encryption algorithm for EVP. 17 18All modes below use a key length of 128 bits and acts on blocks of 128-bits. 19 20=over 4 21 22=item EVP_desx_cbc() 23 24The DES-X algorithm in CBC mode. 25 26This algorithm is not provided by the OpenSSL default provider. 27To use it is necessary to load either the OpenSSL legacy provider or another 28implementation. 29 30=back 31 32Developers should be aware of the negative performance implications of 33calling this function multiple times and should consider using 34L<EVP_CIPHER_fetch(3)> with L<EVP_CIPHER-DES(7)> instead. 35See L<crypto(7)/Performance> for further information. 36 37=head1 RETURN VALUES 38 39These functions return an B<EVP_CIPHER> structure that contains the 40implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for 41details of the B<EVP_CIPHER> structure. 42 43=head1 SEE ALSO 44 45L<evp(7)>, 46L<EVP_EncryptInit(3)>, 47L<EVP_CIPHER_meth_new(3)> 48 49=head1 COPYRIGHT 50 51Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved. 52 53Licensed under the Apache License 2.0 (the "License"). You may not use 54this file except in compliance with the License. You can obtain a copy 55in the file LICENSE in the source distribution or at 56L<https://www.openssl.org/source/license.html>. 57 58=cut 59 60