/*

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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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#ifndef ISC_ITERATED_HASH_H

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#define ISC_ITERATED_HASH_H 1

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#include <isc/lang.h>

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#include <isc/sha1.h>

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/*

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* The maximal hash length that can be encoded in a name

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* using base32hex. floor(255/8)*5

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*/

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#define NSEC3_MAX_HASH_LENGTH 155

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/*

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* The maximum has that can be encoded in a single label using

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* base32hex. floor(63/8)*5

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*/

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#define NSEC3_MAX_LABEL_HASH 35

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ISC_LANG_BEGINDECLS

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int isc_iterated_hash(unsigned char out[NSEC3_MAX_HASH_LENGTH],

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unsigned int hashalg, int iterations,

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const unsigned char *salt, int saltlength,

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const unsigned char *in, int inlength);

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ISC_LANG_ENDDECLS

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#endif /* ISC_ITERATED_HASH_H */

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