Update configurable sigalgs documentation for providers
[openssl.git] / doc / man3 / EVP_seed_cbc.pod
1 =pod
2
3 =head1 NAME
4
5 EVP_seed_cbc,
6 EVP_seed_cfb,
7 EVP_seed_cfb128,
8 EVP_seed_ecb,
9 EVP_seed_ofb
10 - EVP SEED cipher
11
12 =head1 SYNOPSIS
13
14  #include <openssl/evp.h>
15
16  const EVP_CIPHER *EVP_seed_cbc(void);
17  const EVP_CIPHER *EVP_seed_cfb(void);
18  const EVP_CIPHER *EVP_seed_cfb128(void);
19  const EVP_CIPHER *EVP_seed_ecb(void);
20  const EVP_CIPHER *EVP_seed_ofb(void);
21
22 =head1 DESCRIPTION
23
24 The SEED encryption algorithm for EVP.
25
26 All modes below use a key length of 128 bits and acts on blocks of 128-bits.
27
28 =over 4
29
30 =item EVP_seed_cbc(),
31 EVP_seed_cfb(),
32 EVP_seed_cfb128(),
33 EVP_seed_ecb(),
34 EVP_seed_ofb()
35
36 The SEED encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
37
38 =back
39
40 =head1 NOTES
41
42 Developers should be aware of the negative performance implications of
43 calling these functions multiple times and should consider using
44 L<EVP_CIPHER_fetch(3)> with L<EVP_CIPHER-SEED(7)> instead.
45 See L<crypto(7)/Performance> for further information.
46
47 =head1 RETURN VALUES
48
49 These functions return an B<EVP_CIPHER> structure that contains the
50 implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
51 details of the B<EVP_CIPHER> structure.
52
53 =head1 SEE ALSO
54
55 L<evp(7)>,
56 L<EVP_EncryptInit(3)>,
57 L<EVP_CIPHER_meth_new(3)>
58
59 =head1 COPYRIGHT
60
61 Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
62
63 Licensed under the Apache License 2.0 (the "License").  You may not use
64 this file except in compliance with the License.  You can obtain a copy
65 in the file LICENSE in the source distribution or at
66 L<https://www.openssl.org/source/license.html>.
67
68 =cut