repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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 | #ifndef AVUTIL_SHA512_H | |
| 23 | #define AVUTIL_SHA512_H | |
| 24 | ||
| 25 | #include <stdint.h> | |
| 26 | ||
| 27 | #include "attributes.h" | |
| 28 | #include "version.h" | |
| 29 | ||
| 30 | /** | |
| 31 | * @defgroup lavu_sha512 SHA512 | |
| 32 | * @ingroup lavu_crypto | |
| 33 | * @{ | |
| 34 | */ | |
| 35 | ||
| 36 | extern const int av_sha512_size; | |
| 37 | ||
| 38 | struct AVSHA512; | |
| 39 | ||
| 40 | /** | |
| 41 | * Allocate an AVSHA512 context. | |
| 42 | */ | |
| 43 | struct AVSHA512 *av_sha512_alloc(void); | |
| 44 | ||
| 45 | /** | |
| 46 | * Initialize SHA-2 512 hashing. | |
| 47 | * | |
| 48 | * @param context pointer to the function context (of size av_sha512_size) | |
| 49 | * @param bits number of bits in digest (224, 256, 384 or 512 bits) | |
| 50 | * @return zero if initialization succeeded, -1 otherwise | |
| 51 | */ | |
| 52 | int av_sha512_init(struct AVSHA512* context, int bits); | |
| 53 | ||
| 54 | /** | |
| 55 | * Update hash value. | |
| 56 | * | |
| 57 | * @param context hash function context | |
| 58 | * @param data input data to update hash with | |
| 59 | * @param len input data length | |
| 60 | */ | |
| 61 | void av_sha512_update(struct AVSHA512* context, const uint8_t* data, unsigned int len); | |
| 62 | ||
| 63 | /** | |
| 64 | * Finish hashing and output digest value. | |
| 65 | * | |
| 66 | * @param context hash function context | |
| 67 | * @param digest buffer where output digest value is stored | |
| 68 | */ | |
| 69 | void av_sha512_final(struct AVSHA512* context, uint8_t *digest); | |
| 70 | ||
| 71 | /** | |
| 72 | * @} | |
| 73 | */ | |
| 74 | ||
| 75 | #endif /* AVUTIL_SHA512_H */ |