misc/winutils/include/libavutil/aes.h
author koda
Tue, 02 Jun 2015 19:51:04 +0100
branch0.9.21
changeset 10765 7e55468ffe38
parent 7813 7ac83d79b897
permissions -rw-r--r--
Fix building hedgewars-server
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/*
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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 Libav.
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 *
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 * Libav 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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 * Libav 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 Libav; 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 AVUTIL_AES_H
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#define AVUTIL_AES_H
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#include <stdint.h>
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#include "attributes.h"
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#include "version.h"
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/**
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 * @defgroup lavu_aes AES
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 * @ingroup lavu_crypto
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 * @{
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 */
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#if FF_API_CONTEXT_SIZE
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extern attribute_deprecated const int av_aes_size;
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#endif
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struct AVAES;
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/**
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 * Allocate an AVAES context.
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 */
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struct AVAES *av_aes_alloc(void);
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/**
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 * Initialize an 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, const uint8_t *key, int key_bits, int decrypt);
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/**
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 * Encrypt or decrypt a buffer using a previously initialized context.
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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 initialization 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 av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
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/**
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 * @}
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 */
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#endif /* AVUTIL_AES_H */