mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
|
|
* Copyright (C) 2013 James Almer <jamrial@gmail.com>
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @ingroup lavu_sha512
|
|
* Public header for SHA-512 implementation.
|
|
*/
|
|
|
|
#ifndef AVUTIL_SHA512_H
|
|
#define AVUTIL_SHA512_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "attributes.h"
|
|
#include "version.h"
|
|
|
|
/**
|
|
* @defgroup lavu_sha512 SHA-512
|
|
* @ingroup lavu_hash
|
|
* SHA-512 (Secure Hash Algorithm) hash function implementations.
|
|
*
|
|
* This module supports the following SHA-2 hash functions:
|
|
*
|
|
* - SHA-512/224: 224 bits
|
|
* - SHA-512/256: 256 bits
|
|
* - SHA-384: 384 bits
|
|
* - SHA-512: 512 bits
|
|
*
|
|
* @see For SHA-1, SHA-256, and variants thereof, see @ref lavu_sha.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
extern const int av_sha512_size;
|
|
|
|
struct AVSHA512;
|
|
|
|
/**
|
|
* Allocate an AVSHA512 context.
|
|
*/
|
|
struct AVSHA512 *av_sha512_alloc(void);
|
|
|
|
/**
|
|
* Initialize SHA-2 512 hashing.
|
|
*
|
|
* @param context pointer to the function context (of size av_sha512_size)
|
|
* @param bits number of bits in digest (224, 256, 384 or 512 bits)
|
|
* @return zero if initialization succeeded, -1 otherwise
|
|
*/
|
|
int av_sha512_init(struct AVSHA512* context, int bits);
|
|
|
|
/**
|
|
* Update hash value.
|
|
*
|
|
* @param context hash function context
|
|
* @param data input data to update hash with
|
|
* @param len input data length
|
|
*/
|
|
void av_sha512_update(struct AVSHA512* context, const uint8_t* data, unsigned int len);
|
|
|
|
/**
|
|
* Finish hashing and output digest value.
|
|
*
|
|
* @param context hash function context
|
|
* @param digest buffer where output digest value is stored
|
|
*/
|
|
void av_sha512_final(struct AVSHA512* context, uint8_t *digest);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* AVUTIL_SHA512_H */
|