2 * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
24 extern const int av_aes_size;
29 * initalizes a AVAES context
30 * @param key_bits 128, 192 or 256
31 * @param decrypt 0 for encryption, 1 for decryption
33 int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt);
36 * encrypts / decrypts.
37 * @param count number of 16 byte blocks
38 * @param dst destination array, can be equal to src
39 * @param src source array, can be equal to dst
40 * @param iv initalization vector for CBC mode, if NULL then ECB will be used
41 * @param decrypt 0 for encryption, 1 for decryption
43 void av_aes_crypt(struct AVAES *a, uint8_t *dst, uint8_t *src, int count, uint8_t *iv, int decrypt);