mirror of
https://github.com/librempeg/librempeg
synced 2024-11-22 18:49:58 +00:00
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
|
|
* copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVUTIL_AES_H
|
|
#define AVUTIL_AES_H
|
|
|
|
#include <stdint.h>
|
|
|
|
extern const int av_aes_size;
|
|
|
|
struct AVAES;
|
|
|
|
/**
|
|
* Initialize an AVAES context.
|
|
* @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 count number of 16 byte blocks
|
|
* @param dst destination array, can be equal to src
|
|
* @param src source array, can be equal to dst
|
|
* @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);
|
|
|
|
#endif /* AVUTIL_AES_H */
|