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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef ISC_SHA1_H
#define ISC_SHA1_H 1
/* $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 <stdbool.h>
#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/opensslv.h>
#include <openssl/evp.h>
typedef struct {
EVP_MD_CTX *ctx;
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
EVP_MD_CTX _ctx;
#endif
} isc_sha1_t;
#elif PKCS11CRYPTO
#include <pk11/pk11.h>
typedef pk11_context_t isc_sha1_t;
#else
typedef struct {
uint32_t state[5];
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);
bool
isc_sha1_check(bool testing);
ISC_LANG_ENDDECLS
#endif /* ISC_SHA1_H */
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