projects / thirdparty / openssl.git / blame
| Commit | Line | Data |
|---|---|---|
| 8fa4d95e RT |
1 | =pod |
| 2 | ||
| 3 | =head1 NAME | |
| 4 | ||
| 5 | EVP_rc2_cbc, | |
| 6 | EVP_rc2_cfb, | |
| ffd89124 | 7 | EVP_rc2_cfb64, |
| 8fa4d95e RT |
8 | EVP_rc2_ecb, |
| 9 | EVP_rc2_ofb, | |
| 10 | EVP_rc2_40_cbc, | |
| 11 | EVP_rc2_64_cbc | |
| 12 | - EVP RC2 cipher | |
| 13 | ||
| 14 | =head1 SYNOPSIS | |
| 15 | ||
| 16 | #include <openssl/evp.h> | |
| 17 | ||
| f64f17c3 SL |
18 | const EVP_CIPHER *EVP_rc2_cbc(void); |
| 19 | const EVP_CIPHER *EVP_rc2_cfb(void); | |
| 20 | const EVP_CIPHER *EVP_rc2_cfb64(void); | |
| 21 | const EVP_CIPHER *EVP_rc2_ecb(void); | |
| 22 | const EVP_CIPHER *EVP_rc2_ofb(void); | |
| 23 | const EVP_CIPHER *EVP_rc2_40_cbc(void); | |
| 24 | const EVP_CIPHER *EVP_rc2_64_cbc(void); | |
| 8fa4d95e RT |
25 | |
| 26 | =head1 DESCRIPTION | |
| 27 | ||
| 28 | The RC2 encryption algorithm for EVP. | |
| 29 | ||
| 30 | =over 4 | |
| 31 | ||
| 32 | =item EVP_rc2_cbc(), | |
| 33 | EVP_rc2_cfb(), | |
| ffd89124 | 34 | EVP_rc2_cfb64(), |
| 8fa4d95e RT |
35 | EVP_rc2_ecb(), |
| 36 | EVP_rc2_ofb() | |
| 37 | ||
| 38 | RC2 encryption algorithm in CBC, CFB, ECB and OFB modes respectively. This is a | |
| 39 | variable key length cipher with an additional parameter called "effective key | |
| 40 | bits" or "effective key length". By default both are set to 128 bits. | |
| 41 | ||
| 42 | =item EVP_rc2_40_cbc(), | |
| 43 | EVP_rc2_64_cbc() | |
| 44 | ||
| 45 | RC2 algorithm in CBC mode with a default key length and effective key length of | |
| 46 | 40 and 64 bits. | |
| 47 | ||
| 48 | WARNING: these functions are obsolete. Their usage should be replaced with the | |
| 49 | EVP_rc2_cbc(), EVP_CIPHER_CTX_set_key_length() and EVP_CIPHER_CTX_ctrl() | |
| 50 | functions to set the key length and effective key length. | |
| 51 | ||
| 52 | =back | |
| 53 | ||
| e798248c | 54 | =head1 NOTES |
| 55 | ||
| 56 | Developers should be aware of the negative performance implications of | |
| 57 | calling these functions multiple times and should consider using | |
| 58 | L<EVP_CIPHER_fetch(3)> instead. | |
| 59 | See L<crypto(7)/Performance> for further information. | |
| 60 | ||
| 8fa4d95e RT |
61 | =head1 RETURN VALUES |
| 62 | ||
| 63 | These functions return an B<EVP_CIPHER> structure that contains the | |
| 64 | implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for | |
| 65 | details of the B<EVP_CIPHER> structure. | |
| 66 | ||
| 67 | =head1 SEE ALSO | |
| 68 | ||
| 69 | L<evp(7)>, | |
| 70 | L<EVP_EncryptInit(3)>, | |
| 71 | L<EVP_CIPHER_meth_new(3)> | |
| 72 | ||
| 73 | =head1 COPYRIGHT | |
| 74 | ||
| da1c088f | 75 | Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved. |
| 8fa4d95e | 76 | |
| 4746f25a | 77 | Licensed under the Apache License 2.0 (the "License"). You may not use |
| 8fa4d95e RT |
78 | this file except in compliance with the License. You can obtain a copy |
| 79 | in the file LICENSE in the source distribution or at | |
| 80 | L<https://www.openssl.org/source/license.html>. | |
| 81 | ||
| 82 | =cut | |
| 83 |