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/*
* Copyright (C) 2005-2007, 2009 Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: sha2.h,v 1.12 2009-10-22 02:21:31 each Exp $ */
/* $FreeBSD: src/sys/crypto/sha2/sha2.h,v 1.1.2.1 2001/07/03 11:01:36 ume Exp $ */
/* $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 itojun Exp $ */
/*
* sha2.h
*
* Version 1.0.0beta1
*
* Written by Aaron D. Gifford <me@aarongifford.com>
*
* Copyright 2000 Aaron D. Gifford. All rights reserved.
*
* 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 above 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. Neither the name of the copyright holder nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``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(S) OR CONTRIBUTOR(S) 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.
*
*/
#ifndef ISC_SHA2_H
#define ISC_SHA2_H
#include <isc/lang.h>
#include <isc/platform.h>
#include <isc/types.h>
/*** SHA-224/256/384/512 Various Length Definitions ***********************/
#define ISC_SHA224_BLOCK_LENGTH 64U
#define ISC_SHA224_DIGESTLENGTH 28U
#define ISC_SHA224_DIGESTSTRINGLENGTH (ISC_SHA224_DIGESTLENGTH * 2 + 1)
#define ISC_SHA256_BLOCK_LENGTH 64U
#define ISC_SHA256_DIGESTLENGTH 32U
#define ISC_SHA256_DIGESTSTRINGLENGTH (ISC_SHA256_DIGESTLENGTH * 2 + 1)
#define ISC_SHA384_BLOCK_LENGTH 128
#define ISC_SHA384_DIGESTLENGTH 48U
#define ISC_SHA384_DIGESTSTRINGLENGTH (ISC_SHA384_DIGESTLENGTH * 2 + 1)
#define ISC_SHA512_BLOCK_LENGTH 128U
#define ISC_SHA512_DIGESTLENGTH 64U
#define ISC_SHA512_DIGESTSTRINGLENGTH (ISC_SHA512_DIGESTLENGTH * 2 + 1)
/*** SHA-256/384/512 Context Structures *******************************/
#ifdef ISC_PLATFORM_OPENSSLHASH
#include <openssl/evp.h>
typedef EVP_MD_CTX isc_sha256_t;
typedef EVP_MD_CTX isc_sha512_t;
#else
/*
* Keep buffer immediately after bitcount to preserve alignment.
*/
typedef struct {
isc_uint32_t state[8];
isc_uint64_t bitcount;
isc_uint8_t buffer[ISC_SHA256_BLOCK_LENGTH];
} isc_sha256_t;
/*
* Keep buffer immediately after bitcount to preserve alignment.
*/
typedef struct {
isc_uint64_t state[8];
isc_uint64_t bitcount[2];
isc_uint8_t buffer[ISC_SHA512_BLOCK_LENGTH];
} isc_sha512_t;
#endif
typedef isc_sha256_t isc_sha224_t;
typedef isc_sha512_t isc_sha384_t;
ISC_LANG_BEGINDECLS
/*** SHA-224/256/384/512 Function Prototypes ******************************/
void isc_sha224_init (isc_sha224_t *);
void isc_sha224_invalidate (isc_sha224_t *);
void isc_sha224_update (isc_sha224_t *, const isc_uint8_t *, size_t);
void isc_sha224_final (isc_uint8_t[ISC_SHA224_DIGESTLENGTH], isc_sha224_t *);
char *isc_sha224_end (isc_sha224_t *, char[ISC_SHA224_DIGESTSTRINGLENGTH]);
char *isc_sha224_data (const isc_uint8_t *, size_t, char[ISC_SHA224_DIGESTSTRINGLENGTH]);
void isc_sha256_init (isc_sha256_t *);
void isc_sha256_invalidate (isc_sha256_t *);
void isc_sha256_update (isc_sha256_t *, const isc_uint8_t *, size_t);
void isc_sha256_final (isc_uint8_t[ISC_SHA256_DIGESTLENGTH], isc_sha256_t *);
char *isc_sha256_end (isc_sha256_t *, char[ISC_SHA256_DIGESTSTRINGLENGTH]);
char *isc_sha256_data (const isc_uint8_t *, size_t, char[ISC_SHA256_DIGESTSTRINGLENGTH]);
void isc_sha384_init (isc_sha384_t *);
void isc_sha384_invalidate (isc_sha384_t *);
void isc_sha384_update (isc_sha384_t *, const isc_uint8_t *, size_t);
void isc_sha384_final (isc_uint8_t[ISC_SHA384_DIGESTLENGTH], isc_sha384_t *);
char *isc_sha384_end (isc_sha384_t *, char[ISC_SHA384_DIGESTSTRINGLENGTH]);
char *isc_sha384_data (const isc_uint8_t *, size_t, char[ISC_SHA384_DIGESTSTRINGLENGTH]);
void isc_sha512_init (isc_sha512_t *);
void isc_sha512_invalidate (isc_sha512_t *);
void isc_sha512_update (isc_sha512_t *, const isc_uint8_t *, size_t);
void isc_sha512_final (isc_uint8_t[ISC_SHA512_DIGESTLENGTH], isc_sha512_t *);
char *isc_sha512_end (isc_sha512_t *, char[ISC_SHA512_DIGESTSTRINGLENGTH]);
char *isc_sha512_data (const isc_uint8_t *, size_t, char[ISC_SHA512_DIGESTSTRINGLENGTH]);
ISC_LANG_ENDDECLS
#endif /* ISC_SHA2_H */