1/*	$KAME: des_ecb.c,v 1.6 2001/09/10 04:03:58 itojun Exp $	*/
2
3/* crypto/des/ecb_enc.c */
4
5/* Copyright (C) 1995-1998 Eric Young (eay@mincom.oz.au)
6 * All rights reserved.
7 *
8 * This file is part of an SSL implementation written
9 * by Eric Young (eay@mincom.oz.au).
10 * The implementation was written so as to conform with Netscapes SSL
11 * specification.  This library and applications are
12 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
13 * as long as the following conditions are aheared to.
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.  If this code is used in a product,
17 * Eric Young should be given attribution as the author of the parts used.
18 * This can be in the form of a textual message at program startup or
19 * in documentation (online or textual) provided with the package.
20 *
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
23 * are met:
24 * 1. Redistributions of source code must retain the copyright
25 *    notice, this list of conditions and the following disclaimer.
26 * 2. Redistributions in binary form must reproduce the above copyright
27 *    notice, this list of conditions and the following disclaimer in the
28 *    documentation and/or other materials provided with the distribution.
29 * 3. All advertising materials mentioning features or use of this software
30 *    must display the following acknowledgement:
31 *    This product includes software developed by Eric Young (eay@mincom.oz.au)
32 *
33 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
36 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 * SUCH DAMAGE.
44 *
45 * The licence and distribution terms for any publically available version or
46 * derivative of this code cannot be changed.  i.e. this code cannot simply be
47 * copied and put under another distribution licence
48 * [including the GNU Public Licence.]
49 */
50
51#include <sys/cdefs.h>
52__FBSDID("$FreeBSD$");
53
54#include <sys/param.h>
55#include <sys/systm.h>
56#include <crypto/des/des_locl.h>
57#include <crypto/des/spr.h>
58
59/* char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay"; */ /* wrong */
60/* char *DES_version="DES part of SSLeay 0.6.4 30-Aug-1996"; */
61
62char *des_options(void)
63        {
64        static int init=1;
65        static char buf[32];
66
67        if (init)
68                {
69                const char *ptr,*unroll,*risc,*size;
70
71#ifdef DES_PTR
72                ptr="ptr";
73#else
74                ptr="idx";
75#endif
76#if defined(DES_RISC1) || defined(DES_RISC2)
77#ifdef DES_RISC1
78                risc="risc1";
79#endif
80#ifdef DES_RISC2
81                risc="risc2";
82#endif
83#else
84                risc="cisc";
85#endif
86#ifdef DES_UNROLL
87                unroll="16";
88#else
89                unroll="4";
90#endif
91                if (sizeof(DES_LONG) != sizeof(long))
92                        size="int";
93                else
94                        size="long";
95                sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size);
96                init=0;
97                }
98        return(buf);
99}
100void des_ecb_encrypt(des_cblock *input, des_cblock *output,
101		     des_key_schedule ks, int enc)
102{
103	register DES_LONG l;
104	DES_LONG ll[2];
105	const unsigned char *in=&(*input)[0];
106	unsigned char *out = &(*output)[0];
107
108	c2l(in,l); ll[0]=l;
109	c2l(in,l); ll[1]=l;
110	des_encrypt1(ll,ks,enc);
111	l=ll[0]; l2c(l,out);
112	l=ll[1]; l2c(l,out);
113	l=ll[0]=ll[1]=0;
114}
115
116void des_ecb3_encrypt(des_cblock *input, des_cblock *output,
117             des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3,
118             int enc)
119{
120	register DES_LONG l0,l1;
121	DES_LONG ll[2];
122	const unsigned char *in = &(*input)[0];
123	unsigned char *out = &(*output)[0];
124
125	c2l(in,l0);
126	c2l(in,l1);
127	ll[0]=l0;
128	ll[1]=l1;
129
130	if (enc)
131		des_encrypt3(ll,ks1,ks2,ks3);
132	else
133		des_decrypt3(ll,ks1,ks2,ks3);
134
135	l0=ll[0];
136	l1=ll[1];
137	l2c(l0,out);
138	l2c(l1,out);
139}
140