sha512.h

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/*
 * \file sha512.h
 *
 * \brief SHA-384 and SHA-512 cryptographic hash function
 *
 *  Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
 *  Copyright (C) 2015 Frantisek Uhrecky <frantisek.uhrecky[what here]gmail.com>
 *
 *  This file is part of mbed TLS (https://polarssl.org)
 *
 *  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, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#ifndef POLARSSL_SHA512_H
#define POLARSSL_SHA512_H

#include <string.h>

#if defined(_MSC_VER) || defined(__WATCOMC__)
  #define UL64(x) x##ui64
  typedef unsigned __int64 uint64_t;
#else
  #include <inttypes.h>
  #define UL64(x) x##ULL
#endif

#define POLARSSL_ERR_SHA512_FILE_IO_ERROR              -0x007A  
#if !defined(POLARSSL_SHA512_ALT)
// Regular implementation
//

#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
    uint64_t total[2];          
    uint64_t state[8];          
    unsigned char buffer[128];  
    unsigned char ipad[128];    
    unsigned char opad[128];    
    int is384;                  
}
sha512_context;

void sha512_init( sha512_context *ctx );

void sha512_free( sha512_context *ctx );

void sha512_starts( sha512_context *ctx, int is384 );

void sha512_update( sha512_context *ctx, const unsigned char *input,
                    size_t ilen );

void sha512_finish( sha512_context *ctx, unsigned char output[64] );

#ifdef __cplusplus
}
#endif

#else  /* POLARSSL_SHA512_ALT */
#include "sha512_alt.h"
#endif /* POLARSSL_SHA512_ALT */

#ifdef __cplusplus
extern "C" {
#endif

void sha512( const unsigned char *input, size_t ilen,
             unsigned char output[64], int is384 );

int sha512_file( const char *path, unsigned char output[64], int is384 );

#ifdef POLARSSL_SHA512_HMAC

void sha512_hmac_starts( sha512_context *ctx, const unsigned char *key,
                         size_t keylen, int is384 );

void sha512_hmac_update( sha512_context *ctx, const unsigned char *input,
                         size_t ilen );

void sha512_hmac_finish( sha512_context *ctx, unsigned char output[64] );

void sha512_hmac_reset( sha512_context *ctx );

void sha512_hmac( const unsigned char *key, size_t keylen,
                const unsigned char *input, size_t ilen,
                unsigned char output[64], int is384 );
#endif // POLARSSL_SHA512_HMAC

#ifdef POLLARSSL_SHA512_TEST

int sha512_self_test( int verbose );
#endif
/* Internal use */
void sha512_process( sha512_context *ctx, const unsigned char data[128] );

#ifdef __cplusplus
}
#endif

#endif /* sha512.h */