| /* | |
| * copyright (c) 2007 Michael Niedermayer <[email protected]> | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| /** | |
| * @defgroup lavu_aes AES | |
| * @ingroup lavu_crypto | |
| * @{ | |
| */ | |
| extern const int av_aes_size; | |
| struct AVAES; | |
| /** | |
| * Allocate an AVAES context. | |
| */ | |
| struct AVAES *av_aes_alloc(void); | |
| /** | |
| * Initialize an AVAES context. | |
| * | |
| * @param a The AVAES context | |
| * @param key Pointer to the key | |
| * @param key_bits 128, 192 or 256 | |
| * @param decrypt 0 for encryption, 1 for decryption | |
| */ | |
| int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt); | |
| /** | |
| * Encrypt or decrypt a buffer using a previously initialized context. | |
| * | |
| * @param a The AVAES context | |
| * @param dst destination array, can be equal to src | |
| * @param src source array, can be equal to dst | |
| * @param count number of 16 byte blocks | |
| * @param iv initialization vector for CBC mode, if NULL then ECB will be used | |
| * @param decrypt 0 for encryption, 1 for decryption | |
| */ | |
| void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt); | |
| /** | |
| * @} | |
| */ | |