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45 lines
1.5 KiB
45 lines
1.5 KiB
/* |
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* copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AES_H |
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#define AES_H |
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extern const int av_aes_size; |
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struct AVAES; |
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/** |
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* initalizes a AVAES context |
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* @param key_bits 128, 192 or 256 |
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* @param decrypt 0 for encryption, 1 for decryption |
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*/ |
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int av_aes_init(struct AVAES *a, uint8_t *key, int key_bits, int decrypt); |
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/** |
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* encrypts / decrypts. |
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* @param count number of 16 byte blocks |
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* @param dst destination array, can be equal to src |
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* @param src source array, can be equal to dst |
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* @param iv initalization vector for CBC mode, if NULL then ECB will be used |
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* @param decrypt 0 for encryption, 1 for decryption |
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*/ |
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void aes_crypt(struct AVAES *a, uint8_t *dst, uint8_t *src, int count, uint8_t *iv, int decrypt); |
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#endif /* AES_H */
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