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/*
* Special version of sha256.c that uses the libc SHA256 implementation
* of libc.
*/
/* crypto/sha/sha256.c */
/* ====================================================================
* Copyright (c) 2004 The OpenSSL Project. All rights reserved
* according to the OpenSSL license [found in ../../LICENSE].
* ====================================================================
*/
#include <openssl/opensslconf.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/sha.h>
#include <openssl/opensslv.h>
#include "cryptlib.h"
const char SHA256_version[]="SHA-256" OPENSSL_VERSION_PTEXT;
unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
{
SHA256_CTX c;
static unsigned char m[SHA224_DIGEST_LENGTH];
if (md == NULL) md=m;
SHA224_Init(&c);
SHA224_Update(&c,d,n);
SHA224_Final(md,&c);
OPENSSL_cleanse(&c,sizeof(c));
return(md);
}
unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
{
SHA256_CTX c;
static unsigned char m[SHA256_DIGEST_LENGTH];
if (md == NULL) md=m;
SHA256_Init(&c);
SHA256_Update(&c,d,n);
SHA256_Final(md,&c);
OPENSSL_cleanse(&c,sizeof(c));
return(md);
}
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