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/*
* Copyright (c) 2011 Alex Hornung <alex@alexhornung.com>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <errno.h>
/*
* Yey for gcrypt and its broken includes...
* see http://lists.gnupg.org/pipermail/gcrypt-devel/2011-July/001830.html
* and http://seclists.org/wireshark/2011/Jul/208
* for more details...
*/
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#include <gcrypt.h>
#pragma GCC diagnostic warning "-Wdeprecated-declarations"
#include "tcplay.h"
static
int
get_gcrypt_hash_id(struct pbkdf_prf_algo *hash)
{
if (strcmp(hash->name, "RIPEMD160") == 0)
return GCRY_MD_RMD160;
else if (strcmp(hash->name, "SHA512") == 0)
return GCRY_MD_SHA512;
else if (strcmp(hash->name, "whirlpool") == 0)
return GCRY_MD_WHIRLPOOL;
else
return -1;
}
int
pbkdf2(struct pbkdf_prf_algo *hash, const char *pass, int passlen,
const unsigned char *salt, int saltlen,
int keylen, unsigned char *out)
{
gpg_error_t err;
err = gcry_kdf_derive(pass, passlen, GCRY_KDF_PBKDF2,
get_gcrypt_hash_id(hash),
salt, saltlen, hash->iteration_count, keylen, out);
if (err) {
tc_log(1, "Error in PBKDF2\n");
return EINVAL;
}
return 0;
}
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