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sha2.h
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sha2.h
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/* crypto/sha/sha.h */
/* Copyright (C) 1995-1998 Eric Young ([email protected])
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young ([email protected]).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson ([email protected]).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young ([email protected])"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson ([email protected])"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#pragma once
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
#if defined(OPENSSL_NO_SHA) || (defined(OPENSSL_NO_SHA0) && defined(OPENSSL_NO_SHA1))
#error SHA is disabled.
#endif
#if defined(OPENSSL_FIPS)
#define FIPS_SHA_SIZE_T size_t
#endif
/*
Compat stuff from OpenSSL land
*/
/* crypto.h */
#define fips_md_init(alg) fips_md_init_ctx(alg, alg)
#define fips_md_init_ctx(alg, cx) int alg##_Init(cx##_CTX *c)
#define fips_cipher_abort(alg) while (0)
/*-
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* ! SHA_LONG has to be at least 32 bits wide. If it's wider, then !
* ! SHA_LONG_LOG2 has to be defined along. !
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*/
#if defined(__LP32__)
#define SHA_LONG unsigned long
#elif defined(__ILP64__)
#define SHA_LONG unsigned long
#define SHA_LONG_LOG2 3
#else
#define SHA_LONG unsigned int
#endif
#define SHA_LBLOCK 16
#define SHA_CBLOCK \
(SHA_LBLOCK * 4) /* SHA treats input data as a \
* contiguous array of 32 bit wide \
* big-endian values. */
#define SHA_LAST_BLOCK (SHA_CBLOCK - 8)
#define SHA_DIGEST_LENGTH 20
typedef struct SHAstate_st
{
SHA_LONG h0, h1, h2, h3, h4;
SHA_LONG Nl, Nh;
SHA_LONG data[SHA_LBLOCK];
unsigned int num;
} SHA_CTX;
#define SHA256_CBLOCK \
(SHA_LBLOCK * 4) /* SHA-256 treats input data as a \
* contiguous array of 32 bit wide \
* big-endian values. */
#define SHA224_DIGEST_LENGTH 28
#define SHA256_DIGEST_LENGTH 32
typedef struct SHA256state_st
{
SHA_LONG h[8];
SHA_LONG Nl, Nh;
SHA_LONG data[SHA_LBLOCK];
unsigned int num, md_len;
} SHA256_CTX;
#ifndef OPENSSL_NO_SHA256
#ifdef OPENSSL_FIPS
int private_SHA224_Init(SHA256_CTX *c);
int private_SHA256_Init(SHA256_CTX *c);
#endif
int SHA224_Init(SHA256_CTX *c);
int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
int SHA224_Final(unsigned char *md, SHA256_CTX *c);
unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md);
int SHA256_Init(SHA256_CTX *c);
int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
int SHA256_Final(unsigned char *md, SHA256_CTX *c);
unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md);
void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
#endif
#define SHA384_DIGEST_LENGTH 48
#define SHA512_DIGEST_LENGTH 64
#ifdef __cplusplus
}
#endif