blob: 9571c1fa46724c726215d80e3b0692a0a3944257
| 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 | /** |
| 22 | * @file |
| 23 | * @ingroup lavu_md5 |
| 24 | * Public header for MD5 hash function implementation. |
| 25 | */ |
| 26 | |
| 27 | #ifndef AVUTIL_MD5_H |
| 28 | #define AVUTIL_MD5_H |
| 29 | |
| 30 | #include <stdint.h> |
| 31 | |
| 32 | #include "attributes.h" |
| 33 | #include "version.h" |
| 34 | |
| 35 | /** |
| 36 | * @defgroup lavu_md5 MD5 |
| 37 | * @ingroup lavu_hash |
| 38 | * MD5 hash function implementation. |
| 39 | * |
| 40 | * @{ |
| 41 | */ |
| 42 | |
| 43 | extern const int av_md5_size; |
| 44 | |
| 45 | struct AVMD5; |
| 46 | |
| 47 | /** |
| 48 | * Allocate an AVMD5 context. |
| 49 | */ |
| 50 | struct AVMD5 *av_md5_alloc(void); |
| 51 | |
| 52 | /** |
| 53 | * Initialize MD5 hashing. |
| 54 | * |
| 55 | * @param ctx pointer to the function context (of size av_md5_size) |
| 56 | */ |
| 57 | void av_md5_init(struct AVMD5 *ctx); |
| 58 | |
| 59 | /** |
| 60 | * Update hash value. |
| 61 | * |
| 62 | * @param ctx hash function context |
| 63 | * @param src input data to update hash with |
| 64 | * @param len input data length |
| 65 | */ |
| 66 | void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len); |
| 67 | |
| 68 | /** |
| 69 | * Finish hashing and output digest value. |
| 70 | * |
| 71 | * @param ctx hash function context |
| 72 | * @param dst buffer where output digest value is stored |
| 73 | */ |
| 74 | void av_md5_final(struct AVMD5 *ctx, uint8_t *dst); |
| 75 | |
| 76 | /** |
| 77 | * Hash an array of data. |
| 78 | * |
| 79 | * @param dst The output buffer to write the digest into |
| 80 | * @param src The data to hash |
| 81 | * @param len The length of the data, in bytes |
| 82 | */ |
| 83 | void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len); |
| 84 | |
| 85 | /** |
| 86 | * @} |
| 87 | */ |
| 88 | |
| 89 | #endif /* AVUTIL_MD5_H */ |
| 90 |