1 /*
2 * DES encryption/decryption
3 * Copyright (c) 2007 Reimar Doeffinger
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #ifndef AVUTIL_DES_H
23 #define AVUTIL_DES_H
24
25 #include <stdint.h>
26
30 };
31
32 /**
33 * @brief Initializes an AVDES context.
34 *
35 * @param key_bits must be 64 or 192
36 * @param decrypt 0 for encryption/CBC-MAC, 1 for decryption
37 */
39
40 /**
41 * @brief Encrypts / decrypts using the DES algorithm.
42 *
43 * @param count number of 8 byte blocks
44 * @param dst destination array, can be equal to src, must be 8-byte aligned
45 * @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
46 * @param iv initialization vector for CBC mode, if NULL then ECB will be used,
47 * must be 8-byte aligned
48 * @param decrypt 0 for encryption, 1 for decryption
49 */
51
52 /**
53 * @brief Calculates CBC-MAC using the DES algorithm.
54 *
55 * @param count number of 8 byte blocks
56 * @param dst destination array, can be equal to src, must be 8-byte aligned
57 * @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
58 */
60
61 #endif /* AVUTIL_DES_H */