/*

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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")

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*

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* This Source Code Form is subject to the terms of the Mozilla Public

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* License, v. 2.0. If a copy of the MPL was not distributed with this

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* file, you can obtain one at https://mozilla.org/MPL/2.0/.

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*

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* See the COPYRIGHT file distributed with this work for additional

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* information regarding copyright ownership.

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*/

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/*! \file isc/md5.h

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* \brief This is the header file for the MD5 message-digest algorithm.

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*

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* The algorithm is due to Ron Rivest. This code was

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* written by Colin Plumb in 1993, no copyright is claimed.

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* This code is in the public domain; do with it what you wish.

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*

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* Equivalent code is available from RSA Data Security, Inc.

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* This code has been tested against that, and is equivalent,

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* except that you don't need to include two pages of legalese

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* with every copy.

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*

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* To compute the message digest of a chunk of bytes, declare an

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* MD5Context structure, pass it to MD5Init, call MD5Update as

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* needed on buffers full of bytes, and then call MD5Final, which

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* will fill a supplied 16-byte array with the digest.

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*

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* Changed so as no longer to depend on Colin Plumb's `usual.h'

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* header definitions; now uses stuff from dpkg's config.h

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* - Ian Jackson <ijackson@nyx.cs.du.edu>.

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* Still in the public domain.

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*/

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#ifndef ISC_MD5_H

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#define ISC_MD5_H 1

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#include <pk11/site.h>

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#ifndef PK11_MD5_DISABLE

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#include <stdbool.h>

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#include <isc/lang.h>

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#include <isc/platform.h>

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#include <isc/types.h>

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#define ISC_MD5_DIGESTLENGTH 16U

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#define ISC_MD5_BLOCK_LENGTH 64U

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#ifdef ISC_PLATFORM_OPENSSLHASH

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#include <openssl/opensslv.h>

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#include <openssl/evp.h>

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typedef struct {

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EVP_MD_CTX *ctx;

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#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)

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EVP_MD_CTX _ctx;

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#endif

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} isc_md5_t;

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#elif PKCS11CRYPTO

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#include <pk11/pk11.h>

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typedef pk11_context_t isc_md5_t;

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#else

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typedef struct {

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uint32_t buf[4];

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uint32_t bytes[2];

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uint32_t in[16];

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} isc_md5_t;

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#endif

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ISC_LANG_BEGINDECLS

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void

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isc_md5_init(isc_md5_t *ctx);

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void

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isc_md5_invalidate(isc_md5_t *ctx);

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void

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isc_md5_update(isc_md5_t *ctx, const unsigned char *buf, unsigned int len);

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void

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isc_md5_final(isc_md5_t *ctx, unsigned char *digest);

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bool

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isc_md5_check(bool testing);

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bool

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isc_md5_available(void);

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ISC_LANG_ENDDECLS

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#endif /* !PK11_MD5_DISABLE */

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#endif /* ISC_MD5_H */

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