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 | |
67 | char *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 | } |
107 | void 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 | |
123 | void 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 | |