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/*
* Copyright (C) 2004-2007, 2009 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2000, 2001 Internet Software Consortium.
*
* 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.
*/
#ifndef ISC_SHA1_H
#define ISC_SHA1_H 1
/* $Id: sha1.h,v 1.19 2009-02-06 23:47:42 tbox Exp $ */
/* $NetBSD: sha1.h,v 1.2 1998/05/29 22:55:44 thorpej Exp $ */
/*! \file isc/sha1.h
* \brief SHA-1 in C
* \author By Steve Reid <steve@edmweb.com>
* \note 100% Public Domain
*/
#include <isc/lang.h>
#include <isc/platform.h>
#include <isc/types.h>
#define ISC_SHA1_DIGESTLENGTH 20U
#define ISC_SHA1_BLOCK_LENGTH 64U
#ifdef ISC_PLATFORM_OPENSSLHASH
#include <openssl/evp.h>
typedef EVP_MD_CTX isc_sha1_t;
#else
typedef struct {
isc_uint32_t state[5];
isc_uint32_t count[2];
unsigned char buffer[ISC_SHA1_BLOCK_LENGTH];
} isc_sha1_t;
#endif
ISC_LANG_BEGINDECLS
void
isc_sha1_init(isc_sha1_t *ctx);
void
isc_sha1_invalidate(isc_sha1_t *ctx);
void
isc_sha1_update(isc_sha1_t *ctx, const unsigned char *data, unsigned int len);
void
isc_sha1_final(isc_sha1_t *ctx, unsigned char *digest);
ISC_LANG_ENDDECLS
#endif /* ISC_SHA1_H */
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