blob: 6d6bb3208f1fbb49ff7e2729489b8d0ecd33be17
| 1 | /* |
| 2 | * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> |
| 3 | * Copyright (C) 2013 James Almer <jamrial@gmail.com> |
| 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 | /** |
| 23 | * @file |
| 24 | * @ingroup lavu_ripemd |
| 25 | * Public header for RIPEMD hash function implementation. |
| 26 | */ |
| 27 | |
| 28 | #ifndef AVUTIL_RIPEMD_H |
| 29 | #define AVUTIL_RIPEMD_H |
| 30 | |
| 31 | #include <stdint.h> |
| 32 | |
| 33 | #include "attributes.h" |
| 34 | #include "version.h" |
| 35 | |
| 36 | /** |
| 37 | * @defgroup lavu_ripemd RIPEMD |
| 38 | * @ingroup lavu_hash |
| 39 | * RIPEMD hash function implementation. |
| 40 | * |
| 41 | * @{ |
| 42 | */ |
| 43 | |
| 44 | extern const int av_ripemd_size; |
| 45 | |
| 46 | struct AVRIPEMD; |
| 47 | |
| 48 | /** |
| 49 | * Allocate an AVRIPEMD context. |
| 50 | */ |
| 51 | struct AVRIPEMD *av_ripemd_alloc(void); |
| 52 | |
| 53 | /** |
| 54 | * Initialize RIPEMD hashing. |
| 55 | * |
| 56 | * @param context pointer to the function context (of size av_ripemd_size) |
| 57 | * @param bits number of bits in digest (128, 160, 256 or 320 bits) |
| 58 | * @return zero if initialization succeeded, -1 otherwise |
| 59 | */ |
| 60 | int av_ripemd_init(struct AVRIPEMD* context, int bits); |
| 61 | |
| 62 | /** |
| 63 | * Update hash value. |
| 64 | * |
| 65 | * @param context hash function context |
| 66 | * @param data input data to update hash with |
| 67 | * @param len input data length |
| 68 | */ |
| 69 | void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, unsigned int len); |
| 70 | |
| 71 | /** |
| 72 | * Finish hashing and output digest value. |
| 73 | * |
| 74 | * @param context hash function context |
| 75 | * @param digest buffer where output digest value is stored |
| 76 | */ |
| 77 | void av_ripemd_final(struct AVRIPEMD* context, uint8_t *digest); |
| 78 | |
| 79 | /** |
| 80 | * @} |
| 81 | */ |
| 82 | |
| 83 | #endif /* AVUTIL_RIPEMD_H */ |
| 84 |