p5_crpt2.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/* p5_crpt2.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
* project 1999.
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. 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
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#if !defined(OPENSSL_NO_HMAC) && !defined(OPENSSL_NO_SHA)
#include <stdio.h>
#include <stdlib.h>
#include "cryptlib.h"
/* set this to print out info about the keygen algorithm */
/* #define DEBUG_PKCS5V2 */
#ifdef DEBUG_PKCS5V2
#endif
/* This is an implementation of PKCS#5 v2.0 password based encryption key
* derivation function PBKDF2 using the only currently defined function HMAC
* with SHA1. Verified against test vectors posted by Peter Gutmann
* <pgut001@cs.auckland.ac.nz> to the PKCS-TNG <pkcs-tng@rsa.com> mailing list.
*/
{
unsigned long i = 1;
p = out;
while(tkeylen) {
/* We are unlikely to ever use more than 256 blocks (5120 bits!)
* but just in case...
*/
for(j = 1; j < iter; j++) {
}
i++;
p+= cplen;
}
#ifdef DEBUG_PKCS5V2
#endif
return 1;
}
#ifdef DO_TEST
main()
{
unsigned char out[4];
}
#endif
/* Now the key derivation function itself. This is a bit evil because
* it has to check the ASN1 parameters are valid: and there are quite a
* few of them...
*/
int en_de)
{
const EVP_CIPHER *cipher;
return 0;
}
/* See if we recognise the key derivation function */
goto err;
}
/* lets see if we recognise the encryption algorithm.
*/
if(!cipher) {
goto err;
}
/* Fixup cipher based on AlgorithmIdentifier */
goto err;
}
/* Now decode key derivation function */
goto err;
}
/* Now check the parameters of the kdf */
goto err;
}
goto err;
}
goto err;
}
/* it seems that its all OK */
return 1;
err:
return 0;
}
#ifdef DEBUG_PKCS5V2
{
}
#endif
#endif