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1 | /* |
2 | * copyright (c) 2006 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_MD5_H | |
22 | #define AVUTIL_MD5_H | |
23 | ||
24 | #include <stdint.h> | |
25 | ||
26 | #include "attributes.h" | |
27 | #include "version.h" | |
28 | ||
29 | /** | |
30 | * @defgroup lavu_md5 MD5 | |
31 | * @ingroup lavu_crypto | |
32 | * @{ | |
33 | */ | |
34 | ||
35 | extern const int av_md5_size; | |
36 | ||
37 | struct AVMD5; | |
38 | ||
39 | /** | |
40 | * Allocate an AVMD5 context. | |
41 | */ | |
42 | struct AVMD5 *av_md5_alloc(void); | |
43 | ||
44 | /** | |
45 | * Initialize MD5 hashing. | |
46 | * | |
47 | * @param ctx pointer to the function context (of size av_md5_size) | |
48 | */ | |
49 | void av_md5_init(struct AVMD5 *ctx); | |
50 | ||
51 | /** | |
52 | * Update hash value. | |
53 | * | |
54 | * @param ctx hash function context | |
55 | * @param src input data to update hash with | |
56 | * @param len input data length | |
57 | */ | |
58 | void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len); | |
59 | ||
60 | /** | |
61 | * Finish hashing and output digest value. | |
62 | * | |
63 | * @param ctx hash function context | |
64 | * @param dst buffer where output digest value is stored | |
65 | */ | |
66 | void av_md5_final(struct AVMD5 *ctx, uint8_t *dst); | |
67 | ||
68 | /** | |
69 | * Hash an array of data. | |
70 | * | |
71 | * @param dst The output buffer to write the digest into | |
72 | * @param src The data to hash | |
73 | * @param len The length of the data, in bytes | |
74 | */ | |
75 | void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len); | |
76 | ||
77 | /** | |
78 | * @} | |
79 | */ | |
80 | ||
81 | #endif /* AVUTIL_MD5_H */ |