1 /*
2 * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef AVUTIL_SHA_H
22 #define AVUTIL_SHA_H
23
24 #include <stdint.h>
25
28
29 /**
30 * @defgroup lavu_sha SHA
31 * @ingroup lavu_crypto
32 * @{
33 */
34
36
38
39 /**
40 * Allocate an AVSHA context.
41 */
43
44 /**
45 * Initialize SHA-1 or SHA-2 hashing.
46 *
47 * @param context pointer to the function context (of size av_sha_size)
48 * @param bits number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits)
49 * @return zero if initialization succeeded, -1 otherwise
50 */
52
53 /**
54 * Update hash value.
55 *
56 * @param context hash function context
57 * @param data input data to update hash with
58 * @param len input data length
59 */
61
62 /**
63 * Finish hashing and output digest value.
64 *
65 * @param context hash function context
66 * @param digest buffer where output digest value is stored
67 */
69
70 /**
71 * @}
72 */
73
74 #endif /* AVUTIL_SHA_H */