sha1.h
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/**
* \file
* This is a drop in replacement for the openssl sha1 code.
* It has a small performance penalty compared to the openssl code,
* but that's no surprise at all as the openssl code is highly
* optimized.
*
* \author Georg Hopp
*
* \copyright
* Copyright © 2014 Georg Hopp
*
* 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 3 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 __TR_SHA1_H__
#define __TR_SHA1_H__
#ifdef HAS_OPENSSL
#include <openssl/sha.h>
#define TR_SHA_CTX SHA_CTX
#define TR_SHA1_Init SHA1_Init
#define TR_SHA1_Update SHA1_Update
#define TR_SHA1_Final SHA1_Final
#else
// for size_t
#include <sys/types.h>
// for uint32_t
#include <stdint.h>
#define TR_SHA1_INIT_CTX { \
{0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0}, \
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, \
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, \
0, 0}
typedef uint32_t TR_Sha1[5];
typedef struct s_TR_SHA_CTX {
TR_Sha1 hash;
unsigned char temp_buffer[64];
size_t ntemp_buffer;
size_t size;
} TR_SHA_CTX;
int TR_SHA1_Init(TR_SHA_CTX *);
int TR_SHA1_Update(TR_SHA_CTX *, const void *, size_t);
int TR_SHA1_Final(unsigned char * const, TR_SHA_CTX *);
#endif //HAS_OPENSSL
#endif //__TR_SHA1_H__
// vim: set ts=4 sw=4: