/*
* Copyright (C) 2006, 2008, 2009, 2016 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 http://mozilla.org/MPL/2.0/.
*/
/* $Id: iterated_hash.c,v 1.6 2009/02/18 23:47:48 tbox Exp $ */
#include "config.h"
#include <stdio.h>
#include <isc/sha1.h>
#include <isc/iterated_hash.h>
int
isc_iterated_hash(unsigned char out[ISC_SHA1_DIGESTLENGTH],
unsigned int hashalg, int iterations,
const unsigned char *salt, int saltlength,
const unsigned char *in, int inlength)
{
isc_sha1_t ctx;
int n = 0;
if (hashalg != 1)
return (0);
do {
isc_sha1_init(&ctx);
isc_sha1_update(&ctx, in, inlength);
isc_sha1_update(&ctx, salt, saltlength);
isc_sha1_final(&ctx, out);
in = out;
inlength = ISC_SHA1_DIGESTLENGTH;
} while (n++ < iterations);
return (ISC_SHA1_DIGESTLENGTH);
}