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 35extern const int av_md5_size; 36 37struct AVMD5; 38 39/** 40 * Allocate an AVMD5 context. 41 */ 42struct 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 */ 49void 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 */ 58void 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 */ 66void 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 */ 75void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len); 76 77/** 78 * @} 79 */ 80 81#endif /* AVUTIL_MD5_H */ 82