/*

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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/hmacmd5.h

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* \brief This is the header file for the HMAC-MD5 keyed hash algorithm

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* described in RFC2104.

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*/

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#ifndef ISC_HMACMD5_H

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#define ISC_HMACMD5_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/md5.h>

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#include <isc/platform.h>

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#include <isc/types.h>

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#define ISC_HMACMD5_KEYLENGTH 64

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#ifdef ISC_PLATFORM_OPENSSLHASH

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#include <openssl/opensslv.h>

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#include <openssl/hmac.h>

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typedef struct {

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HMAC_CTX *ctx;

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

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HMAC_CTX _ctx;

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#endif

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} isc_hmacmd5_t;

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#elif PKCS11CRYPTO

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#include <pk11/pk11.h>

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typedef pk11_context_t isc_hmacmd5_t;

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#else

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typedef struct {

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isc_md5_t md5ctx;

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unsigned char key[ISC_HMACMD5_KEYLENGTH];

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} isc_hmacmd5_t;

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#endif

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ISC_LANG_BEGINDECLS

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void

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isc_hmacmd5_init(isc_hmacmd5_t *ctx, const unsigned char *key,

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unsigned int len);

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void

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isc_hmacmd5_invalidate(isc_hmacmd5_t *ctx);

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void

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isc_hmacmd5_update(isc_hmacmd5_t *ctx, const unsigned char *buf,

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unsigned int len);

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void

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isc_hmacmd5_sign(isc_hmacmd5_t *ctx, unsigned char *digest);

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bool

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isc_hmacmd5_verify(isc_hmacmd5_t *ctx, unsigned char *digest);

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bool

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isc_hmacmd5_verify2(isc_hmacmd5_t *ctx, unsigned char *digest, size_t len);

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bool

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isc_hmacmd5_check(int testing);

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ISC_LANG_ENDDECLS

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#endif /* !PK11_MD5_DISABLE */

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#endif /* ISC_HMACMD5_H */

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