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authorryker <>1998-10-05 20:13:16 +0000
committerryker <>1998-10-05 20:13:16 +0000
commit9e43e2ac1373d5be5c6500c1bc3b1dd6ee9584b4 (patch)
tree51ff319f3510104698e541954d10ad98f9125f36 /src/lib/libcrypto/des/ede_enc.c
parent9e77c62555877f9a64805c49d0dcd7dbfbb40f4e (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
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diff --git a/src/lib/libcrypto/des/ede_enc.c b/src/lib/libcrypto/des/ede_enc.c
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1/* crypto/des/ede_enc.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include "des_locl.h"
60
61void des_ede3_cbc_encrypt(input, output, length, ks1, ks2, ks3, ivec, enc)
62des_cblock (*input);
63des_cblock (*output);
64long length;
65des_key_schedule ks1;
66des_key_schedule ks2;
67des_key_schedule ks3;
68des_cblock (*ivec);
69int enc;
70 {
71 register DES_LONG tin0,tin1;
72 register DES_LONG tout0,tout1,xor0,xor1;
73 register unsigned char *in,*out;
74 register long l=length;
75 DES_LONG tin[2];
76 unsigned char *iv;
77
78 in=(unsigned char *)input;
79 out=(unsigned char *)output;
80 iv=(unsigned char *)ivec;
81
82 if (enc)
83 {
84 c2l(iv,tout0);
85 c2l(iv,tout1);
86 for (l-=8; l>=0; l-=8)
87 {
88 c2l(in,tin0);
89 c2l(in,tin1);
90 tin0^=tout0;
91 tin1^=tout1;
92
93 tin[0]=tin0;
94 tin[1]=tin1;
95 des_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
96 tout0=tin[0];
97 tout1=tin[1];
98
99 l2c(tout0,out);
100 l2c(tout1,out);
101 }
102 if (l != -8)
103 {
104 c2ln(in,tin0,tin1,l+8);
105 tin0^=tout0;
106 tin1^=tout1;
107
108 tin[0]=tin0;
109 tin[1]=tin1;
110 des_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
111 tout0=tin[0];
112 tout1=tin[1];
113
114 l2c(tout0,out);
115 l2c(tout1,out);
116 }
117 iv=(unsigned char *)ivec;
118 l2c(tout0,iv);
119 l2c(tout1,iv);
120 }
121 else
122 {
123 register DES_LONG t0,t1;
124
125 c2l(iv,xor0);
126 c2l(iv,xor1);
127 for (l-=8; l>=0; l-=8)
128 {
129 c2l(in,tin0);
130 c2l(in,tin1);
131
132 t0=tin0;
133 t1=tin1;
134
135 tin[0]=tin0;
136 tin[1]=tin1;
137 des_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
138 tout0=tin[0];
139 tout1=tin[1];
140
141 tout0^=xor0;
142 tout1^=xor1;
143 l2c(tout0,out);
144 l2c(tout1,out);
145 xor0=t0;
146 xor1=t1;
147 }
148 if (l != -8)
149 {
150 c2l(in,tin0);
151 c2l(in,tin1);
152
153 t0=tin0;
154 t1=tin1;
155
156 tin[0]=tin0;
157 tin[1]=tin1;
158 des_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
159 tout0=tin[0];
160 tout1=tin[1];
161
162 tout0^=xor0;
163 tout1^=xor1;
164 l2cn(tout0,tout1,out,l+8);
165 xor0=t0;
166 xor1=t1;
167 }
168
169 iv=(unsigned char *)ivec;
170 l2c(xor0,iv);
171 l2c(xor1,iv);
172 }
173 tin0=tin1=tout0=tout1=xor0=xor1=0;
174 tin[0]=tin[1]=0;
175 }
176
177#ifdef undef /* MACRO */
178void des_ede2_cbc_encrypt(input, output, length, ks1, ks2, ivec, enc)
179des_cblock (*input);
180des_cblock (*output);
181long length;
182des_key_schedule ks1;
183des_key_schedule ks2;
184des_cblock (*ivec);
185int enc;
186 {
187 des_ede3_cbc_encrypt(input,output,length,ks1,ks2,ks1,ivec,enc);
188 }
189#endif
190