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| Current File : //compat/linux/proc/68247/root/usr/include/isc/iterated_hash.h |
/*
* Copyright (C) 2008, 2014 Internet Systems Consortium, Inc. ("ISC")
*
* 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.
*/
/* $Id: iterated_hash.h,v 1.3 2008/09/25 04:02:39 tbox Exp $ */
#ifndef ISC_ITERATED_HASH_H
#define ISC_ITERATED_HASH_H 1
#include <isc/lang.h>
#include <isc/sha1.h>
/*
* The maximal hash length that can be encoded in a name
* using base32hex. floor(255/8)*5
*/
#define NSEC3_MAX_HASH_LENGTH 155
/*
* The maximum has that can be encoded in a single label using
* base32hex. floor(63/8)*5
*/
#define NSEC3_MAX_LABEL_HASH 35
ISC_LANG_BEGINDECLS
int isc_iterated_hash(unsigned char out[NSEC3_MAX_HASH_LENGTH],
unsigned int hashalg, int iterations,
const unsigned char *salt, int saltlength,
const unsigned char *in, int inlength);
ISC_LANG_ENDDECLS
#endif /* ISC_ITERATED_HASH_H */