|  | =pod | 
|  |  | 
|  | =head1 NAME | 
|  |  | 
|  | EVP_des_cbc, | 
|  | EVP_des_cfb, | 
|  | EVP_des_cfb1, | 
|  | EVP_des_cfb8, | 
|  | EVP_des_cfb64, | 
|  | EVP_des_ecb, | 
|  | EVP_des_ofb, | 
|  | EVP_des_ede, | 
|  | EVP_des_ede_cbc, | 
|  | EVP_des_ede_cfb, | 
|  | EVP_des_ede_cfb64, | 
|  | EVP_des_ede_ecb, | 
|  | EVP_des_ede_ofb, | 
|  | EVP_des_ede3, | 
|  | EVP_des_ede3_cbc, | 
|  | EVP_des_ede3_cfb, | 
|  | EVP_des_ede3_cfb1, | 
|  | EVP_des_ede3_cfb8, | 
|  | EVP_des_ede3_cfb64, | 
|  | EVP_des_ede3_ecb, | 
|  | EVP_des_ede3_ofb, | 
|  | EVP_des_ede3_wrap | 
|  | - EVP DES cipher | 
|  |  | 
|  | =head1 SYNOPSIS | 
|  |  | 
|  | =for openssl generic | 
|  |  | 
|  | #include <openssl/evp.h> | 
|  |  | 
|  | const EVP_CIPHER *EVP_ciphername(void) | 
|  |  | 
|  | I<EVP_ciphername> is used a placeholder for any of the described cipher | 
|  | functions, such as I<EVP_des_cbc>. | 
|  |  | 
|  | =head1 DESCRIPTION | 
|  |  | 
|  | The DES encryption algorithm for EVP. | 
|  |  | 
|  | =over 4 | 
|  |  | 
|  | =item EVP_des_cbc(), | 
|  | EVP_des_ecb(), | 
|  | EVP_des_cfb(), | 
|  | EVP_des_cfb1(), | 
|  | EVP_des_cfb8(), | 
|  | EVP_des_cfb64(), | 
|  | EVP_des_ofb() | 
|  |  | 
|  | DES in CBC, ECB, CFB with 64-bit shift, CFB with 1-bit shift, CFB with 8-bit | 
|  | shift and OFB modes. | 
|  |  | 
|  | None of these algorithms are provided by the OpenSSL default provider. | 
|  | To use them it is necessary to load either the OpenSSL legacy provider or another | 
|  | implementation. | 
|  |  | 
|  | =item EVP_des_ede(), | 
|  | EVP_des_ede_cbc(), | 
|  | EVP_des_ede_cfb(), | 
|  | EVP_des_ede_cfb64(), | 
|  | EVP_des_ede_ecb(), | 
|  | EVP_des_ede_ofb() | 
|  |  | 
|  | Two key triple DES in ECB, CBC, CFB with 64-bit shift and OFB modes. | 
|  |  | 
|  | =item EVP_des_ede3(), | 
|  | EVP_des_ede3_cbc(), | 
|  | EVP_des_ede3_cfb(), | 
|  | EVP_des_ede3_cfb1(), | 
|  | EVP_des_ede3_cfb8(), | 
|  | EVP_des_ede3_cfb64(), | 
|  | EVP_des_ede3_ecb(), | 
|  | EVP_des_ede3_ofb() | 
|  |  | 
|  | Three-key triple DES in ECB, CBC, CFB with 64-bit shift, CFB with 1-bit shift, | 
|  | CFB with 8-bit shift and OFB modes. | 
|  |  | 
|  | =item EVP_des_ede3_wrap() | 
|  |  | 
|  | Triple-DES key wrap according to RFC 3217 Section 3. | 
|  |  | 
|  | =back | 
|  |  | 
|  | =head1 RETURN VALUES | 
|  |  | 
|  | These functions return an B<EVP_CIPHER> structure that contains the | 
|  | implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for | 
|  | details of the B<EVP_CIPHER> structure. | 
|  |  | 
|  | =head1 SEE ALSO | 
|  |  | 
|  | L<evp(7)>, | 
|  | L<EVP_EncryptInit(3)>, | 
|  | L<EVP_CIPHER_meth_new(3)> | 
|  |  | 
|  | =head1 COPYRIGHT | 
|  |  | 
|  | Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved. | 
|  |  | 
|  | Licensed under the Apache License 2.0 (the "License").  You may not use | 
|  | this file except in compliance with the License.  You can obtain a copy | 
|  | in the file LICENSE in the source distribution or at | 
|  | L<https://www.openssl.org/source/license.html>. | 
|  |  | 
|  | =cut | 
|  |  |