mirror of
https://github.com/openssl/openssl.git
synced 2024-12-27 06:21:43 +08:00
e798248c84
Clearly document that implicit fetching is slower when using providers, and explain prefetching. Added to crypto.pod and migration_guide.pod links to it. Add a link to EVP_default_properties_enable_fips() in crypto.pod. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/20354)
118 lines
2.4 KiB
Plaintext
118 lines
2.4 KiB
Plaintext
=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 NOTES
|
|
|
|
Developers should be aware of the negative performance implications of
|
|
calling these functions multiple times and should consider using
|
|
L<EVP_CIPHER_fetch(3)> instead.
|
|
See L<crypto(7)/Performance> for further information.
|
|
|
|
=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
|
|
|