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