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PATH: usr / include / ffmpeg / libavutil

/*
 * An implementation of the CAST128 algorithm as mentioned in RFC2144
 * Copyright (c) 2014 Supraja Meedinti
 *
 * 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
 */

#ifndef AVUTIL_CAST5_H
#define AVUTIL_CAST5_H

#include <stdint.h>

/**
  * @file
  * @brief Public header for libavutil CAST5 algorithm
  * @defgroup lavu_cast5 CAST5
  * @ingroup lavu_crypto
  * @{
  */

extern const int av_cast5_size;

struct AVCAST5;

/**
  * Allocate an AVCAST5 context
  * To free the struct: av_free(ptr)
  */
struct AVCAST5 *av_cast5_alloc(void);
/**
  * Initialize an AVCAST5 context.
  *
  * @param ctx an AVCAST5 context
  * @param key a key of 5,6,...16 bytes used for encryption/decryption
  * @param key_bits number of keybits: possible are 40,48,...,128
 */
int av_cast5_init(struct AVCAST5 *ctx, const uint8_t *key, int key_bits);

/**
  * Encrypt or decrypt a buffer using a previously initialized context, ECB mode only
  *
  * @param ctx an AVCAST5 context
  * @param dst destination array, can be equal to src
  * @param src source array, can be equal to dst
  * @param count number of 8 byte blocks
  * @param decrypt 0 for encryption, 1 for decryption
 */
void av_cast5_crypt(struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, int decrypt);

/**
  * Encrypt or decrypt a buffer using a previously initialized context
  *
  * @param ctx an AVCAST5 context
  * @param dst destination array, can be equal to src
  * @param src source array, can be equal to dst
  * @param count number of 8 byte blocks
  * @param iv initialization vector for CBC mode, NULL for ECB mode
  * @param decrypt 0 for encryption, 1 for decryption
 */
void av_cast5_crypt2(struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
/**
 * @}
 */
#endif /* AVUTIL_CAST5_H */

[-] dict.h [edit]
[-] md5.h [edit]
[-] file.h [edit]
[-] version.h [edit]
[-] eval.h [edit]
[-] aes.h [edit]
[-] sha512.h [edit]
[-] replaygain.h [edit]
[-] samplefmt.h [edit]
[-] threadmessage.h [edit]
[-] motion_vector.h [edit]
[-] pixdesc.h [edit]
[-] old_pix_fmts.h [edit]
[-] intreadwrite.h [edit]
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[+] ..
[-] base64.h [edit]
[-] stereo3d.h [edit]
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[-] opt.h [edit]
[-] mem.h [edit]
[-] parseutils.h [edit]
[-] camellia.h [edit]
[-] random_seed.h [edit]
[-] cast5.h [edit]
[-] bswap.h [edit]
[-] pixelutils.h [edit]
[-] attributes.h [edit]
[-] log.h [edit]
[-] avstring.h [edit]
[-] imgutils.h [edit]
[-] adler32.h [edit]
[-] crc.h [edit]
[-] time.h [edit]
[-] audio_fifo.h [edit]
[-] hash.h [edit]
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[-] avconfig.h [edit]
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[-] display.h [edit]
[-] error.h [edit]
[-] twofish.h [edit]
[-] pixfmt.h [edit]
[-] common.h [edit]
[-] avutil.h [edit]
[-] audioconvert.h [edit]
[-] channel_layout.h [edit]
[-] macros.h [edit]
[-] timestamp.h [edit]
[-] mathematics.h [edit]
[-] sha.h [edit]
[-] ripemd.h [edit]
[-] blowfish.h [edit]
[-] fifo.h [edit]
[-] buffer.h [edit]