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/*
* SHA-224 functions
*
* Copyright (C) 2011-2018, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This software is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This software 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 Lesser General Public License
* along with this software. If not, see <http://www.gnu.org/licenses/>.
*/
#if !defined( _LIBHMAC_SHA224_H )
#define _LIBHMAC_SHA224_H
#include <common.h>
#include <types.h>
#if defined( HAVE_WINCRYPT ) && defined( WINAPI )
#include <wincrypt.h>
#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_SHA_H )
#include <openssl/sha.h>
#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_EVP_H )
#include <openssl/evp.h>
#endif
#include "libhmac_extern.h"
#include "libhmac_libcerror.h"
#include "libhmac_types.h"
#if defined( __cplusplus )
extern "C" {
#endif
/* Make sure the WINAPI version is Vista or later otherwise
* a cross compilation will contain broken SHA-224 support
*/
#if defined( HAVE_WINCRYPT ) && defined( WINAPI ) && ( WINVER >= 0x0600 ) && defined( CALG_SHA_224 )
#define LIBHMAC_HAVE_SHA224_SUPPORT
#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_SHA_H ) && defined( SHA224_DIGEST_LENGTH )
#define LIBHMAC_HAVE_SHA224_SUPPORT
#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_EVP_H ) && defined( HAVE_EVP_SHA224 )
#define LIBHMAC_HAVE_SHA224_SUPPORT
#endif
#if !defined( LIBHMAC_HAVE_SHA224_SUPPORT )
#define LIBHMAC_SHA224_BLOCK_SIZE 64
#endif
typedef struct libhmac_internal_sha224_context libhmac_internal_sha224_context_t;
struct libhmac_internal_sha224_context
{
#if defined( HAVE_WINCRYPT ) && defined( WINAPI ) && ( WINVER >= 0x0600 ) && defined( CALG_SHA_224 )
/* The crypto provider handle
*/
HCRYPTPROV crypt_provider;
/* The crypto hash handle
*/
HCRYPTHASH hash;
#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_SHA_H ) && defined( SHA224_DIGEST_LENGTH )
/* The SHA-224 functions use the SHA-256 context
*/
SHA256_CTX sha224_context;
#elif defined( HAVE_LIBCRYPTO ) && defined( HAVE_OPENSSL_EVP_H ) && defined( HAVE_EVP_SHA224 )
/* The EVP message digest context
*/
#if defined( HAVE_EVP_MD_CTX_INIT )
EVP_MD_CTX internal_evp_md_context;
#endif
EVP_MD_CTX *evp_md_context;
#else
/* The number of bytes hashed
*/
uint64_t hash_count;
/* The 32-bit hash values
*/
uint32_t hash_values[ 8 ];
/* The block offset
*/
size_t block_offset;
/* The (data) block
*/
uint8_t block[ 128 ];
#endif
};
#if !defined( LIBHMAC_HAVE_SHA224_SUPPORT )
ssize_t libhmac_sha224_transform(
libhmac_internal_sha224_context_t *internal_context,
const uint8_t *buffer,
size_t size,
libcerror_error_t **error );
#endif /* !defined( LIBHMAC_HAVE_SHA224_SUPPORT ) */
LIBHMAC_EXTERN \
int libhmac_sha224_initialize(
libhmac_sha224_context_t **context,
libcerror_error_t **error );
LIBHMAC_EXTERN \
int libhmac_sha224_free(
libhmac_sha224_context_t **context,
libcerror_error_t **error );
LIBHMAC_EXTERN \
int libhmac_sha224_update(
libhmac_sha224_context_t *context,
const uint8_t *buffer,
size_t size,
libcerror_error_t **error );
LIBHMAC_EXTERN \
int libhmac_sha224_finalize(
libhmac_sha224_context_t *context,
uint8_t *hash,
size_t hash_size,
libcerror_error_t **error );
LIBHMAC_EXTERN \
int libhmac_sha224_calculate(
const uint8_t *buffer,
size_t size,
uint8_t *hash,
size_t hash_size,
libcerror_error_t **error );
LIBHMAC_EXTERN \
int libhmac_sha224_calculate_hmac(
const uint8_t *key,
size_t key_size,
const uint8_t *buffer,
size_t size,
uint8_t *hmac,
size_t hmac_size,
libcerror_error_t **error );
#if defined( __cplusplus )
}
#endif
#endif /* !defined( _LIBHMAC_SHA224_H ) */
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