1/* $NetBSD: des_ecb.c,v 1.10 2014/03/25 16:28:15 christos Exp $ */
2/* $KAME: des_ecb.c,v 1.5 2000/11/06 13:58:08 itojun Exp $ */
3
4/* crypto/des/ecb_enc.c */
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__KERNEL_RCSID(0, "$NetBSD: des_ecb.c,v 1.10 2014/03/25 16:28:15 christos Exp $");
53
54#include <sys/param.h>
55#ifdef _KERNEL
56#include <sys/systm.h>
57#else
58#include <stdio.h>
59#include <string.h>
60#endif
61#include <crypto/des/des_locl.h>
62#include <crypto/des/spr.h>
63
64/* char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay"; */ /* wrong */
65/* char *DES_version="DES part of SSLeay 0.6.4 30-Aug-1996"; */
66
67char *des_options(void)
68 {
69 static int init=1;
70 static char buf[32];
71
72 if (init)
73 {
74 const char *ptr,*unroll,*risc,*size;
75
76#ifdef DES_PTR
77 ptr="ptr";
78#else
79 ptr="idx";
80#endif
81#if defined(DES_RISC1) || defined(DES_RISC2)
82#ifdef DES_RISC1
83 risc="risc1";
84#endif
85#ifdef DES_RISC2
86 risc="risc2";
87#endif
88#else
89 risc="cisc";
90#endif
91#ifdef DES_UNROLL
92 unroll="16";
93#else
94 unroll="4";
95#endif
96 /*CONSTCOND*/
97 if (sizeof(DES_LONG) != sizeof(long))
98 size="int";
99 else
100 size="long";
101 snprintf(buf, sizeof(buf), "des(%s,%s,%s,%s)",
102 ptr, risc, unroll, size);
103 init=0;
104 }
105 return(buf);
106}
107void des_ecb_encrypt(des_cblock *input, des_cblock *output,
108 des_key_schedule ks, int enc)
109{
110 register DES_LONG l;
111 DES_LONG ll[2];
112 const unsigned char *in=&(*input)[0];
113 unsigned char *out = &(*output)[0];
114
115 c2l(in,l); ll[0]=l;
116 c2l(in,l); ll[1]=l;
117 des_encrypt1(ll,ks,enc);
118 l=ll[0]; l2c(l,out);
119 l=ll[1]; l2c(l,out);
120 l=ll[0]=ll[1]=0;
121}
122
123void des_ecb3_encrypt(des_cblock *input, des_cblock *output,
124 des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3,
125 int enc)
126{
127 register DES_LONG l0,l1;
128 DES_LONG ll[2];
129 const unsigned char *in = &(*input)[0];
130 unsigned char *out = &(*output)[0];
131
132 c2l(in,l0);
133 c2l(in,l1);
134 ll[0]=l0;
135 ll[1]=l1;
136
137 if (enc)
138 des_encrypt3(ll,ks1,ks2,ks3);
139 else
140 des_decrypt3(ll,ks1,ks2,ks3);
141
142 l0=ll[0];
143 l1=ll[1];
144 l2c(l0,out);
145 l2c(l1,out);
146}
147