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/* $KAME: des_ecb.c,v 1.6 2001/09/10 04:03:58 itojun Exp $ */
/* crypto/des/ecb_enc.c */
/* Copyright (C) 1995-1998 Eric Young (eay@mincom.oz.au)
* All rights reserved.
*
* This file is part of an SSL implementation written
* by Eric Young (eay@mincom.oz.au).
* The implementation was written so as to conform with Netscapes SSL
* specification. This library and applications are
* FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
* as long as the following conditions are aheared to.
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed. If this code is used in a product,
* Eric Young should be given attribution as the author of the parts used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Eric Young (eay@mincom.oz.au)
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <crypto/des/des_locl.h>
#include <crypto/des/spr.h>
/* char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay"; */ /* wrong */
/* char *DES_version="DES part of SSLeay 0.6.4 30-Aug-1996"; */
char *des_options(void)
{
static int init=1;
static char buf[32];
if (init)
{
const char *ptr,*unroll,*risc,*size;
#ifdef DES_PTR
ptr="ptr";
#else
ptr="idx";
#endif
#if defined(DES_RISC1) || defined(DES_RISC2)
#ifdef DES_RISC1
risc="risc1";
#endif
#ifdef DES_RISC2
risc="risc2";
#endif
#else
risc="cisc";
#endif
#ifdef DES_UNROLL
unroll="16";
#else
unroll="4";
#endif
if (sizeof(DES_LONG) != sizeof(long))
size="int";
else
size="long";
sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size);
init=0;
}
return(buf);
}
void des_ecb_encrypt(des_cblock *input, des_cblock *output,
des_key_schedule ks, int enc)
{
register DES_LONG l;
DES_LONG ll[2];
const unsigned char *in=&(*input)[0];
unsigned char *out = &(*output)[0];
c2l(in,l); ll[0]=l;
c2l(in,l); ll[1]=l;
des_encrypt1(ll,ks,enc);
l=ll[0]; l2c(l,out);
l=ll[1]; l2c(l,out);
l=ll[0]=ll[1]=0;
}
void des_ecb3_encrypt(des_cblock *input, des_cblock *output,
des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3,
int enc)
{
register DES_LONG l0,l1;
DES_LONG ll[2];
const unsigned char *in = &(*input)[0];
unsigned char *out = &(*output)[0];
c2l(in,l0);
c2l(in,l1);
ll[0]=l0;
ll[1]=l1;
if (enc)
des_encrypt3(ll,ks1,ks2,ks3);
else
des_decrypt3(ll,ks1,ks2,ks3);
l0=ll[0];
l1=ll[1];
l2c(l0,out);
l2c(l1,out);
}
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