73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/**
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* \file pbkdf2.h
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*
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* \brief Password-Based Key Derivation Function 2 (from PKCS#5)
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*
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* \author Mathias Olsson <mathias@kompetensum.com>
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*
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* Copyright (C) 2006-2012, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef POLARSSL_PBKDF2_H
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#define POLARSSL_PBKDF2_H
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#include <string.h>
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#include "md.h"
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#define POLARSSL_ERR_PBKDF2_BAD_INPUT_DATA -0x007C /**< Bad input parameters to function. */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief PKCS#5 PBKDF2 using HMAC
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*
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* \param ctx Generic HMAC context
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* \param password Password to use when generating key
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* \param plen Length of password
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* \param salt Salt to use when generating key
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* \param slen Length of salt
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* \param iteration_count Iteration count
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* \param key_length Length of generated key
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* \param output Generated key. Must be at least as big as key_length
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*
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* \returns 0 on success, or a PolarSSL error code if verification fails.
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*/
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int pbkdf2_hmac( md_context_t *ctx, const unsigned char *password,
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size_t plen, const unsigned char *salt, size_t slen,
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unsigned int iteration_count,
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unsigned long key_length, unsigned char *output );
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/**
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* \brief Checkup routine
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*
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* \return 0 if successful, or 1 if the test failed
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*/
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int pbkdf2_self_test( int verbose );
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#ifdef __cplusplus
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}
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#endif
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#endif /* pbkdf2.h */
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