repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * copyright (c) 2007 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_AES_H | |
| 22 | #define AVUTIL_AES_H | |
| 23 | ||
| 24 | #include <stdint.h> | |
| 25 | ||
| 26 | #include "attributes.h" | |
| 27 | #include "version.h" | |
| 28 | ||
| 29 | /** | |
| 30 | * @defgroup lavu_aes AES | |
| 31 | * @ingroup lavu_crypto | |
| 32 | * @{ | |
| 33 | */ | |
| 34 | ||
| 35 | extern const int av_aes_size; | |
| 36 | ||
| 37 | struct AVAES; | |
| 38 | ||
| 39 | /** | |
| 40 | * Allocate an AVAES context. | |
| 41 | */ | |
| 42 | struct AVAES *av_aes_alloc(void); | |
| 43 | ||
| 44 | /** | |
| 45 | * Initialize an AVAES context. | |
| 46 | * @param key_bits 128, 192 or 256 | |
| 47 | * @param decrypt 0 for encryption, 1 for decryption | |
| 48 | */ | |
| 49 | int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt); | |
| 50 | ||
| 51 | /** | |
| 52 | * Encrypt or decrypt a buffer using a previously initialized context. | |
| 53 | * @param count number of 16 byte blocks | |
| 54 | * @param dst destination array, can be equal to src | |
| 55 | * @param src source array, can be equal to dst | |
| 56 | * @param iv initialization vector for CBC mode, if NULL then ECB will be used | |
| 57 | * @param decrypt 0 for encryption, 1 for decryption | |
| 58 | */ | |
| 59 | void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt); | |
| 60 | ||
| 61 | /** | |
| 62 | * @} | |
| 63 | */ | |
| 64 | ||
| 65 | #endif /* AVUTIL_AES_H */ |