mirror of
https://github.com/moparisthebest/pacman
synced 2024-11-04 16:45:07 -05:00
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/*
|
|
* SHA-224 and SHA-256 cryptographic hash function
|
|
*
|
|
* Copyright (C) 2006-2010, Brainspark B.V.
|
|
*
|
|
* This file is part of PolarSSL (http://www.polarssl.org)
|
|
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef _SHA2_H
|
|
#define _SHA2_H
|
|
|
|
#include <string.h>
|
|
|
|
/**
|
|
* \brief SHA-256 context structure
|
|
*/
|
|
typedef struct
|
|
{
|
|
unsigned long total[2]; /*!< number of bytes processed */
|
|
unsigned long state[8]; /*!< intermediate digest state */
|
|
unsigned char buffer[64]; /*!< data block being processed */
|
|
|
|
int is224; /*!< 0 => SHA-256, else SHA-224 */
|
|
}
|
|
sha2_context;
|
|
|
|
/**
|
|
* \brief Output = SHA-256( input buffer )
|
|
*
|
|
* \param input buffer holding the data
|
|
* \param ilen length of the input data
|
|
* \param output SHA-224/256 checksum result
|
|
* \param is224 0 = use SHA256, 1 = use SHA224
|
|
*/
|
|
void sha2( const unsigned char *input, size_t ilen,
|
|
unsigned char output[32], int is224 );
|
|
|
|
/**
|
|
* \brief Output = SHA-256( file contents )
|
|
*
|
|
* \param path input file name
|
|
* \param output SHA-224/256 checksum result
|
|
* \param is224 0 = use SHA256, 1 = use SHA224
|
|
*
|
|
* \return 0 if successful, 1 if fopen failed,
|
|
* or 2 if fread failed
|
|
*/
|
|
int sha2_file( const char *path, unsigned char output[32], int is224 );
|
|
|
|
#endif /* sha2.h */
|