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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitaeeae06a79815dc190061534d47236cec09f9e32 (patch)
tree851692b9c2f9c04f077666855641900f19fdb217 /src/lib/libcrypto/des/xcbc_enc.c
parenta4f79641824cbf9f60ca9d1168d1fcc46717a82a (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.
Diffstat (limited to 'src/lib/libcrypto/des/xcbc_enc.c')
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1 files changed, 206 insertions, 0 deletions
diff --git a/src/lib/libcrypto/des/xcbc_enc.c b/src/lib/libcrypto/des/xcbc_enc.c
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1/* crypto/des/xcbc_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
61/* RSA's DESX */
62
63static unsigned char desx_white_in2out[256]={
640xBD,0x56,0xEA,0xF2,0xA2,0xF1,0xAC,0x2A,0xB0,0x93,0xD1,0x9C,0x1B,0x33,0xFD,0xD0,
650x30,0x04,0xB6,0xDC,0x7D,0xDF,0x32,0x4B,0xF7,0xCB,0x45,0x9B,0x31,0xBB,0x21,0x5A,
660x41,0x9F,0xE1,0xD9,0x4A,0x4D,0x9E,0xDA,0xA0,0x68,0x2C,0xC3,0x27,0x5F,0x80,0x36,
670x3E,0xEE,0xFB,0x95,0x1A,0xFE,0xCE,0xA8,0x34,0xA9,0x13,0xF0,0xA6,0x3F,0xD8,0x0C,
680x78,0x24,0xAF,0x23,0x52,0xC1,0x67,0x17,0xF5,0x66,0x90,0xE7,0xE8,0x07,0xB8,0x60,
690x48,0xE6,0x1E,0x53,0xF3,0x92,0xA4,0x72,0x8C,0x08,0x15,0x6E,0x86,0x00,0x84,0xFA,
700xF4,0x7F,0x8A,0x42,0x19,0xF6,0xDB,0xCD,0x14,0x8D,0x50,0x12,0xBA,0x3C,0x06,0x4E,
710xEC,0xB3,0x35,0x11,0xA1,0x88,0x8E,0x2B,0x94,0x99,0xB7,0x71,0x74,0xD3,0xE4,0xBF,
720x3A,0xDE,0x96,0x0E,0xBC,0x0A,0xED,0x77,0xFC,0x37,0x6B,0x03,0x79,0x89,0x62,0xC6,
730xD7,0xC0,0xD2,0x7C,0x6A,0x8B,0x22,0xA3,0x5B,0x05,0x5D,0x02,0x75,0xD5,0x61,0xE3,
740x18,0x8F,0x55,0x51,0xAD,0x1F,0x0B,0x5E,0x85,0xE5,0xC2,0x57,0x63,0xCA,0x3D,0x6C,
750xB4,0xC5,0xCC,0x70,0xB2,0x91,0x59,0x0D,0x47,0x20,0xC8,0x4F,0x58,0xE0,0x01,0xE2,
760x16,0x38,0xC4,0x6F,0x3B,0x0F,0x65,0x46,0xBE,0x7E,0x2D,0x7B,0x82,0xF9,0x40,0xB5,
770x1D,0x73,0xF8,0xEB,0x26,0xC7,0x87,0x97,0x25,0x54,0xB1,0x28,0xAA,0x98,0x9D,0xA5,
780x64,0x6D,0x7A,0xD4,0x10,0x81,0x44,0xEF,0x49,0xD6,0xAE,0x2E,0xDD,0x76,0x5C,0x2F,
790xA7,0x1C,0xC9,0x09,0x69,0x9A,0x83,0xCF,0x29,0x39,0xB9,0xE9,0x4C,0xFF,0x43,0xAB,
80 };
81
82void des_xwhite_in2out(des_key,in_white,out_white)
83des_cblock (*des_key);
84des_cblock (*in_white);
85des_cblock (*out_white);
86 {
87 unsigned char *key,*in,*out;
88 int out0,out1;
89 int i;
90
91 key=(unsigned char *)des_key;
92 in=(unsigned char *)in_white;
93 out=(unsigned char *)out_white;
94
95 out[0]=out[1]=out[2]=out[3]=out[4]=out[5]=out[6]=out[7]=0;
96 out0=out1=0;
97 for (i=0; i<8; i++)
98 {
99 out[i]=key[i]^desx_white_in2out[out0^out1];
100 out0=out1;
101 out1=(int)out[i&0x07];
102 }
103
104 out0=out[0];
105 out1=out[i];
106 for (i=0; i<8; i++)
107 {
108 out[i]=in[i]^desx_white_in2out[out0^out1];
109 out0=out1;
110 out1=(int)out[i&0x07];
111 }
112 }
113
114void des_xcbc_encrypt(input, output, length, schedule, ivec, inw,outw,enc)
115des_cblock (*input);
116des_cblock (*output);
117long length;
118des_key_schedule schedule;
119des_cblock (*ivec);
120des_cblock (*inw);
121des_cblock (*outw);
122int enc;
123 {
124 register DES_LONG tin0,tin1;
125 register DES_LONG tout0,tout1,xor0,xor1;
126 register DES_LONG inW0,inW1,outW0,outW1;
127 register unsigned char *in,*out;
128 register long l=length;
129 DES_LONG tin[2];
130 unsigned char *iv;
131
132 in=(unsigned char *)inw;
133 c2l(in,inW0);
134 c2l(in,inW1);
135 in=(unsigned char *)outw;
136 c2l(in,outW0);
137 c2l(in,outW1);
138
139 in=(unsigned char *)input;
140 out=(unsigned char *)output;
141 iv=(unsigned char *)ivec;
142
143 if (enc)
144 {
145 c2l(iv,tout0);
146 c2l(iv,tout1);
147 for (l-=8; l>=0; l-=8)
148 {
149 c2l(in,tin0);
150 c2l(in,tin1);
151 tin0^=tout0^inW0; tin[0]=tin0;
152 tin1^=tout1^inW1; tin[1]=tin1;
153 des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
154 tout0=tin[0]^outW0; l2c(tout0,out);
155 tout1=tin[1]^outW1; l2c(tout1,out);
156 }
157 if (l != -8)
158 {
159 c2ln(in,tin0,tin1,l+8);
160 tin0^=tout0^inW0; tin[0]=tin0;
161 tin1^=tout1^inW1; tin[1]=tin1;
162 des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
163 tout0=tin[0]^outW0; l2c(tout0,out);
164 tout1=tin[1]^outW1; l2c(tout1,out);
165 }
166 iv=(unsigned char *)ivec;
167 l2c(tout0,iv);
168 l2c(tout1,iv);
169 }
170 else
171 {
172 c2l(iv,xor0);
173 c2l(iv,xor1);
174 for (l-=8; l>0; l-=8)
175 {
176 c2l(in,tin0); tin[0]=tin0^outW0;
177 c2l(in,tin1); tin[1]=tin1^outW1;
178 des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
179 tout0=tin[0]^xor0^inW0;
180 tout1=tin[1]^xor1^inW1;
181 l2c(tout0,out);
182 l2c(tout1,out);
183 xor0=tin0;
184 xor1=tin1;
185 }
186 if (l != -8)
187 {
188 c2l(in,tin0); tin[0]=tin0^outW0;
189 c2l(in,tin1); tin[1]=tin1^outW1;
190 des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
191 tout0=tin[0]^xor0^inW0;
192 tout1=tin[1]^xor1^inW1;
193 l2cn(tout0,tout1,out,l+8);
194 xor0=tin0;
195 xor1=tin1;
196 }
197
198 iv=(unsigned char *)ivec;
199 l2c(xor0,iv);
200 l2c(xor1,iv);
201 }
202 tin0=tin1=tout0=tout1=xor0=xor1=0;
203 inW0=inW1=outW0=outW1=0;
204 tin[0]=tin[1]=0;
205 }
206