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42 lines
1,000 B
C
42 lines
1,000 B
C
/*
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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 http://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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#include <config.h>
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#include <stdio.h>
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#include <isc/sha1.h>
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#include <isc/iterated_hash.h>
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int
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isc_iterated_hash(unsigned char out[ISC_SHA1_DIGESTLENGTH],
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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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{
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isc_sha1_t ctx;
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int n = 0;
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if (hashalg != 1)
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return (0);
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do {
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isc_sha1_init(&ctx);
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isc_sha1_update(&ctx, in, inlength);
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isc_sha1_update(&ctx, salt, saltlength);
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isc_sha1_final(&ctx, out);
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in = out;
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inlength = ISC_SHA1_DIGESTLENGTH;
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} while (n++ < iterations);
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return (ISC_SHA1_DIGESTLENGTH);
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}
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