1 /* crypto/des/des_enc.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
59 #include "fips_des_locl.h"
60 #include <openssl/fips.h>
64 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc)
66 register DES_LONG l,r,t,u;
68 register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
75 if(FIPS_selftest_failed())
85 /* Things have been modified so that the initial rotate is
86 * done outside the loop. This required the
87 * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
88 * One perl script later and things have a 5% speed up on a sparc2.
89 * Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
90 * for pointing this out. */
91 /* clear the top bits on machines with 8byte longs */
93 r=ROTATE(r,29)&0xffffffffL;
94 l=ROTATE(l,29)&0xffffffffL;
97 /* I don't know if it is worth the effort of loop unrolling the
102 D_ENCRYPT(l,r, 0); /* 1 */
103 D_ENCRYPT(r,l, 2); /* 2 */
104 D_ENCRYPT(l,r, 4); /* 3 */
105 D_ENCRYPT(r,l, 6); /* 4 */
106 D_ENCRYPT(l,r, 8); /* 5 */
107 D_ENCRYPT(r,l,10); /* 6 */
108 D_ENCRYPT(l,r,12); /* 7 */
109 D_ENCRYPT(r,l,14); /* 8 */
110 D_ENCRYPT(l,r,16); /* 9 */
111 D_ENCRYPT(r,l,18); /* 10 */
112 D_ENCRYPT(l,r,20); /* 11 */
113 D_ENCRYPT(r,l,22); /* 12 */
114 D_ENCRYPT(l,r,24); /* 13 */
115 D_ENCRYPT(r,l,26); /* 14 */
116 D_ENCRYPT(l,r,28); /* 15 */
117 D_ENCRYPT(r,l,30); /* 16 */
119 for (i=0; i<32; i+=8)
121 D_ENCRYPT(l,r,i+0); /* 1 */
122 D_ENCRYPT(r,l,i+2); /* 2 */
123 D_ENCRYPT(l,r,i+4); /* 3 */
124 D_ENCRYPT(r,l,i+6); /* 4 */
131 D_ENCRYPT(l,r,30); /* 16 */
132 D_ENCRYPT(r,l,28); /* 15 */
133 D_ENCRYPT(l,r,26); /* 14 */
134 D_ENCRYPT(r,l,24); /* 13 */
135 D_ENCRYPT(l,r,22); /* 12 */
136 D_ENCRYPT(r,l,20); /* 11 */
137 D_ENCRYPT(l,r,18); /* 10 */
138 D_ENCRYPT(r,l,16); /* 9 */
139 D_ENCRYPT(l,r,14); /* 8 */
140 D_ENCRYPT(r,l,12); /* 7 */
141 D_ENCRYPT(l,r,10); /* 6 */
142 D_ENCRYPT(r,l, 8); /* 5 */
143 D_ENCRYPT(l,r, 6); /* 4 */
144 D_ENCRYPT(r,l, 4); /* 3 */
145 D_ENCRYPT(l,r, 2); /* 2 */
146 D_ENCRYPT(r,l, 0); /* 1 */
148 for (i=30; i>0; i-=8)
150 D_ENCRYPT(l,r,i-0); /* 16 */
151 D_ENCRYPT(r,l,i-2); /* 15 */
152 D_ENCRYPT(l,r,i-4); /* 14 */
153 D_ENCRYPT(r,l,i-6); /* 13 */
158 /* rotate and clear the top bits on machines with 8byte longs */
159 l=ROTATE(l,3)&0xffffffffL;
160 r=ROTATE(r,3)&0xffffffffL;
168 void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc)
170 register DES_LONG l,r,t,u;
172 register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
177 register DES_LONG *s;
179 if(FIPS_selftest_failed())
188 /* Things have been modified so that the initial rotate is
189 * done outside the loop. This required the
190 * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
191 * One perl script later and things have a 5% speed up on a sparc2.
192 * Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
193 * for pointing this out. */
194 /* clear the top bits on machines with 8byte longs */
195 r=ROTATE(r,29)&0xffffffffL;
196 l=ROTATE(l,29)&0xffffffffL;
199 /* I don't know if it is worth the effort of loop unrolling the
204 D_ENCRYPT(l,r, 0); /* 1 */
205 D_ENCRYPT(r,l, 2); /* 2 */
206 D_ENCRYPT(l,r, 4); /* 3 */
207 D_ENCRYPT(r,l, 6); /* 4 */
208 D_ENCRYPT(l,r, 8); /* 5 */
209 D_ENCRYPT(r,l,10); /* 6 */
210 D_ENCRYPT(l,r,12); /* 7 */
211 D_ENCRYPT(r,l,14); /* 8 */
212 D_ENCRYPT(l,r,16); /* 9 */
213 D_ENCRYPT(r,l,18); /* 10 */
214 D_ENCRYPT(l,r,20); /* 11 */
215 D_ENCRYPT(r,l,22); /* 12 */
216 D_ENCRYPT(l,r,24); /* 13 */
217 D_ENCRYPT(r,l,26); /* 14 */
218 D_ENCRYPT(l,r,28); /* 15 */
219 D_ENCRYPT(r,l,30); /* 16 */
221 for (i=0; i<32; i+=8)
223 D_ENCRYPT(l,r,i+0); /* 1 */
224 D_ENCRYPT(r,l,i+2); /* 2 */
225 D_ENCRYPT(l,r,i+4); /* 3 */
226 D_ENCRYPT(r,l,i+6); /* 4 */
233 D_ENCRYPT(l,r,30); /* 16 */
234 D_ENCRYPT(r,l,28); /* 15 */
235 D_ENCRYPT(l,r,26); /* 14 */
236 D_ENCRYPT(r,l,24); /* 13 */
237 D_ENCRYPT(l,r,22); /* 12 */
238 D_ENCRYPT(r,l,20); /* 11 */
239 D_ENCRYPT(l,r,18); /* 10 */
240 D_ENCRYPT(r,l,16); /* 9 */
241 D_ENCRYPT(l,r,14); /* 8 */
242 D_ENCRYPT(r,l,12); /* 7 */
243 D_ENCRYPT(l,r,10); /* 6 */
244 D_ENCRYPT(r,l, 8); /* 5 */
245 D_ENCRYPT(l,r, 6); /* 4 */
246 D_ENCRYPT(r,l, 4); /* 3 */
247 D_ENCRYPT(l,r, 2); /* 2 */
248 D_ENCRYPT(r,l, 0); /* 1 */
250 for (i=30; i>0; i-=8)
252 D_ENCRYPT(l,r,i-0); /* 16 */
253 D_ENCRYPT(r,l,i-2); /* 15 */
254 D_ENCRYPT(l,r,i-4); /* 14 */
255 D_ENCRYPT(r,l,i-6); /* 13 */
259 /* rotate and clear the top bits on machines with 8byte longs */
260 data[0]=ROTATE(l,3)&0xffffffffL;
261 data[1]=ROTATE(r,3)&0xffffffffL;
265 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
266 DES_key_schedule *ks2, DES_key_schedule *ks3)
268 register DES_LONG l,r;
275 DES_encrypt2((DES_LONG *)data,ks1,DES_ENCRYPT);
276 DES_encrypt2((DES_LONG *)data,ks2,DES_DECRYPT);
277 DES_encrypt2((DES_LONG *)data,ks3,DES_ENCRYPT);
285 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
286 DES_key_schedule *ks2, DES_key_schedule *ks3)
288 register DES_LONG l,r;
295 DES_encrypt2((DES_LONG *)data,ks3,DES_DECRYPT);
296 DES_encrypt2((DES_LONG *)data,ks2,DES_ENCRYPT);
297 DES_encrypt2((DES_LONG *)data,ks1,DES_DECRYPT);
305 #else /* ndef OPENSSL_FIPS */
307 static void *dummy=&dummy;
309 #endif /* ndef OPENSSL_FIPS */