Branch data Line data Source code
1 : : /* crypto/des/set_key.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 : : /* set_key.c v 1.4 eay 24/9/91
60 : : * 1.4 Speed up by 400% :-)
61 : : * 1.3 added register declarations.
62 : : * 1.2 unrolled make_key_sched a bit more
63 : : * 1.1 added norm_expand_bits
64 : : * 1.0 First working version
65 : : */
66 : : #include <openssl/crypto.h>
67 : : #include "des_locl.h"
68 : :
69 : : OPENSSL_IMPLEMENT_GLOBAL(int,DES_check_key,0) /* defaults to false */
70 : :
71 : : __fips_constseg
72 : : static const unsigned char odd_parity[256]={
73 : : 1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14,
74 : : 16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31,
75 : : 32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47,
76 : : 49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62,
77 : : 64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79,
78 : : 81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94,
79 : : 97, 97, 98, 98,100,100,103,103,104,104,107,107,109,109,110,110,
80 : : 112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127,
81 : : 128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143,
82 : : 145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158,
83 : : 161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174,
84 : : 176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191,
85 : : 193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206,
86 : : 208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223,
87 : : 224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239,
88 : : 241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254};
89 : :
90 : 95 : void DES_set_odd_parity(DES_cblock *key)
91 : : {
92 : : unsigned int i;
93 : :
94 [ + + ]: 855 : for (i=0; i<DES_KEY_SZ; i++)
95 : 760 : (*key)[i]=odd_parity[(*key)[i]];
96 : 95 : }
97 : :
98 : 20 : int DES_check_key_parity(const_DES_cblock *key)
99 : : {
100 : : unsigned int i;
101 : :
102 [ + + ]: 180 : for (i=0; i<DES_KEY_SZ; i++)
103 : : {
104 [ + - ]: 160 : if ((*key)[i] != odd_parity[(*key)[i]])
105 : : return(0);
106 : : }
107 : : return(1);
108 : : }
109 : :
110 : : /* Weak and semi week keys as take from
111 : : * %A D.W. Davies
112 : : * %A W.L. Price
113 : : * %T Security for Computer Networks
114 : : * %I John Wiley & Sons
115 : : * %D 1984
116 : : * Many thanks to smb@ulysses.att.com (Steven Bellovin) for the reference
117 : : * (and actual cblock values).
118 : : */
119 : : #define NUM_WEAK_KEY 16
120 : : __fips_constseg
121 : : static const DES_cblock weak_keys[NUM_WEAK_KEY]={
122 : : /* weak keys */
123 : : {0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01},
124 : : {0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE},
125 : : {0x1F,0x1F,0x1F,0x1F,0x0E,0x0E,0x0E,0x0E},
126 : : {0xE0,0xE0,0xE0,0xE0,0xF1,0xF1,0xF1,0xF1},
127 : : /* semi-weak keys */
128 : : {0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE},
129 : : {0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01},
130 : : {0x1F,0xE0,0x1F,0xE0,0x0E,0xF1,0x0E,0xF1},
131 : : {0xE0,0x1F,0xE0,0x1F,0xF1,0x0E,0xF1,0x0E},
132 : : {0x01,0xE0,0x01,0xE0,0x01,0xF1,0x01,0xF1},
133 : : {0xE0,0x01,0xE0,0x01,0xF1,0x01,0xF1,0x01},
134 : : {0x1F,0xFE,0x1F,0xFE,0x0E,0xFE,0x0E,0xFE},
135 : : {0xFE,0x1F,0xFE,0x1F,0xFE,0x0E,0xFE,0x0E},
136 : : {0x01,0x1F,0x01,0x1F,0x01,0x0E,0x01,0x0E},
137 : : {0x1F,0x01,0x1F,0x01,0x0E,0x01,0x0E,0x01},
138 : : {0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1,0xFE},
139 : : {0xFE,0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1}};
140 : :
141 : 20 : int DES_is_weak_key(const_DES_cblock *key)
142 : : {
143 : : int i;
144 : :
145 [ + + ]: 340 : for (i=0; i<NUM_WEAK_KEY; i++)
146 : : /* Added == 0 to comparison, I obviously don't run
147 : : * this section very often :-(, thanks to
148 : : * engineering@MorningStar.Com for the fix
149 : : * eay 93/06/29
150 : : * Another problem, I was comparing only the first 4
151 : : * bytes, 97/03/18 */
152 [ + - ]: 320 : if (memcmp(weak_keys[i],key,sizeof(DES_cblock)) == 0) return(1);
153 : : return(0);
154 : : }
155 : :
156 : : /* NOW DEFINED IN des_local.h
157 : : * See ecb_encrypt.c for a pseudo description of these macros.
158 : : * #define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\
159 : : * (b)^=(t),\
160 : : * (a)=((a)^((t)<<(n))))
161 : : */
162 : :
163 : : #define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\
164 : : (a)=(a)^(t)^(t>>(16-(n))))
165 : :
166 : : __fips_constseg
167 : : static const DES_LONG des_skb[8][64]={
168 : : {
169 : : /* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
170 : : 0x00000000L,0x00000010L,0x20000000L,0x20000010L,
171 : : 0x00010000L,0x00010010L,0x20010000L,0x20010010L,
172 : : 0x00000800L,0x00000810L,0x20000800L,0x20000810L,
173 : : 0x00010800L,0x00010810L,0x20010800L,0x20010810L,
174 : : 0x00000020L,0x00000030L,0x20000020L,0x20000030L,
175 : : 0x00010020L,0x00010030L,0x20010020L,0x20010030L,
176 : : 0x00000820L,0x00000830L,0x20000820L,0x20000830L,
177 : : 0x00010820L,0x00010830L,0x20010820L,0x20010830L,
178 : : 0x00080000L,0x00080010L,0x20080000L,0x20080010L,
179 : : 0x00090000L,0x00090010L,0x20090000L,0x20090010L,
180 : : 0x00080800L,0x00080810L,0x20080800L,0x20080810L,
181 : : 0x00090800L,0x00090810L,0x20090800L,0x20090810L,
182 : : 0x00080020L,0x00080030L,0x20080020L,0x20080030L,
183 : : 0x00090020L,0x00090030L,0x20090020L,0x20090030L,
184 : : 0x00080820L,0x00080830L,0x20080820L,0x20080830L,
185 : : 0x00090820L,0x00090830L,0x20090820L,0x20090830L,
186 : : },{
187 : : /* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */
188 : : 0x00000000L,0x02000000L,0x00002000L,0x02002000L,
189 : : 0x00200000L,0x02200000L,0x00202000L,0x02202000L,
190 : : 0x00000004L,0x02000004L,0x00002004L,0x02002004L,
191 : : 0x00200004L,0x02200004L,0x00202004L,0x02202004L,
192 : : 0x00000400L,0x02000400L,0x00002400L,0x02002400L,
193 : : 0x00200400L,0x02200400L,0x00202400L,0x02202400L,
194 : : 0x00000404L,0x02000404L,0x00002404L,0x02002404L,
195 : : 0x00200404L,0x02200404L,0x00202404L,0x02202404L,
196 : : 0x10000000L,0x12000000L,0x10002000L,0x12002000L,
197 : : 0x10200000L,0x12200000L,0x10202000L,0x12202000L,
198 : : 0x10000004L,0x12000004L,0x10002004L,0x12002004L,
199 : : 0x10200004L,0x12200004L,0x10202004L,0x12202004L,
200 : : 0x10000400L,0x12000400L,0x10002400L,0x12002400L,
201 : : 0x10200400L,0x12200400L,0x10202400L,0x12202400L,
202 : : 0x10000404L,0x12000404L,0x10002404L,0x12002404L,
203 : : 0x10200404L,0x12200404L,0x10202404L,0x12202404L,
204 : : },{
205 : : /* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */
206 : : 0x00000000L,0x00000001L,0x00040000L,0x00040001L,
207 : : 0x01000000L,0x01000001L,0x01040000L,0x01040001L,
208 : : 0x00000002L,0x00000003L,0x00040002L,0x00040003L,
209 : : 0x01000002L,0x01000003L,0x01040002L,0x01040003L,
210 : : 0x00000200L,0x00000201L,0x00040200L,0x00040201L,
211 : : 0x01000200L,0x01000201L,0x01040200L,0x01040201L,
212 : : 0x00000202L,0x00000203L,0x00040202L,0x00040203L,
213 : : 0x01000202L,0x01000203L,0x01040202L,0x01040203L,
214 : : 0x08000000L,0x08000001L,0x08040000L,0x08040001L,
215 : : 0x09000000L,0x09000001L,0x09040000L,0x09040001L,
216 : : 0x08000002L,0x08000003L,0x08040002L,0x08040003L,
217 : : 0x09000002L,0x09000003L,0x09040002L,0x09040003L,
218 : : 0x08000200L,0x08000201L,0x08040200L,0x08040201L,
219 : : 0x09000200L,0x09000201L,0x09040200L,0x09040201L,
220 : : 0x08000202L,0x08000203L,0x08040202L,0x08040203L,
221 : : 0x09000202L,0x09000203L,0x09040202L,0x09040203L,
222 : : },{
223 : : /* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */
224 : : 0x00000000L,0x00100000L,0x00000100L,0x00100100L,
225 : : 0x00000008L,0x00100008L,0x00000108L,0x00100108L,
226 : : 0x00001000L,0x00101000L,0x00001100L,0x00101100L,
227 : : 0x00001008L,0x00101008L,0x00001108L,0x00101108L,
228 : : 0x04000000L,0x04100000L,0x04000100L,0x04100100L,
229 : : 0x04000008L,0x04100008L,0x04000108L,0x04100108L,
230 : : 0x04001000L,0x04101000L,0x04001100L,0x04101100L,
231 : : 0x04001008L,0x04101008L,0x04001108L,0x04101108L,
232 : : 0x00020000L,0x00120000L,0x00020100L,0x00120100L,
233 : : 0x00020008L,0x00120008L,0x00020108L,0x00120108L,
234 : : 0x00021000L,0x00121000L,0x00021100L,0x00121100L,
235 : : 0x00021008L,0x00121008L,0x00021108L,0x00121108L,
236 : : 0x04020000L,0x04120000L,0x04020100L,0x04120100L,
237 : : 0x04020008L,0x04120008L,0x04020108L,0x04120108L,
238 : : 0x04021000L,0x04121000L,0x04021100L,0x04121100L,
239 : : 0x04021008L,0x04121008L,0x04021108L,0x04121108L,
240 : : },{
241 : : /* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
242 : : 0x00000000L,0x10000000L,0x00010000L,0x10010000L,
243 : : 0x00000004L,0x10000004L,0x00010004L,0x10010004L,
244 : : 0x20000000L,0x30000000L,0x20010000L,0x30010000L,
245 : : 0x20000004L,0x30000004L,0x20010004L,0x30010004L,
246 : : 0x00100000L,0x10100000L,0x00110000L,0x10110000L,
247 : : 0x00100004L,0x10100004L,0x00110004L,0x10110004L,
248 : : 0x20100000L,0x30100000L,0x20110000L,0x30110000L,
249 : : 0x20100004L,0x30100004L,0x20110004L,0x30110004L,
250 : : 0x00001000L,0x10001000L,0x00011000L,0x10011000L,
251 : : 0x00001004L,0x10001004L,0x00011004L,0x10011004L,
252 : : 0x20001000L,0x30001000L,0x20011000L,0x30011000L,
253 : : 0x20001004L,0x30001004L,0x20011004L,0x30011004L,
254 : : 0x00101000L,0x10101000L,0x00111000L,0x10111000L,
255 : : 0x00101004L,0x10101004L,0x00111004L,0x10111004L,
256 : : 0x20101000L,0x30101000L,0x20111000L,0x30111000L,
257 : : 0x20101004L,0x30101004L,0x20111004L,0x30111004L,
258 : : },{
259 : : /* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */
260 : : 0x00000000L,0x08000000L,0x00000008L,0x08000008L,
261 : : 0x00000400L,0x08000400L,0x00000408L,0x08000408L,
262 : : 0x00020000L,0x08020000L,0x00020008L,0x08020008L,
263 : : 0x00020400L,0x08020400L,0x00020408L,0x08020408L,
264 : : 0x00000001L,0x08000001L,0x00000009L,0x08000009L,
265 : : 0x00000401L,0x08000401L,0x00000409L,0x08000409L,
266 : : 0x00020001L,0x08020001L,0x00020009L,0x08020009L,
267 : : 0x00020401L,0x08020401L,0x00020409L,0x08020409L,
268 : : 0x02000000L,0x0A000000L,0x02000008L,0x0A000008L,
269 : : 0x02000400L,0x0A000400L,0x02000408L,0x0A000408L,
270 : : 0x02020000L,0x0A020000L,0x02020008L,0x0A020008L,
271 : : 0x02020400L,0x0A020400L,0x02020408L,0x0A020408L,
272 : : 0x02000001L,0x0A000001L,0x02000009L,0x0A000009L,
273 : : 0x02000401L,0x0A000401L,0x02000409L,0x0A000409L,
274 : : 0x02020001L,0x0A020001L,0x02020009L,0x0A020009L,
275 : : 0x02020401L,0x0A020401L,0x02020409L,0x0A020409L,
276 : : },{
277 : : /* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */
278 : : 0x00000000L,0x00000100L,0x00080000L,0x00080100L,
279 : : 0x01000000L,0x01000100L,0x01080000L,0x01080100L,
280 : : 0x00000010L,0x00000110L,0x00080010L,0x00080110L,
281 : : 0x01000010L,0x01000110L,0x01080010L,0x01080110L,
282 : : 0x00200000L,0x00200100L,0x00280000L,0x00280100L,
283 : : 0x01200000L,0x01200100L,0x01280000L,0x01280100L,
284 : : 0x00200010L,0x00200110L,0x00280010L,0x00280110L,
285 : : 0x01200010L,0x01200110L,0x01280010L,0x01280110L,
286 : : 0x00000200L,0x00000300L,0x00080200L,0x00080300L,
287 : : 0x01000200L,0x01000300L,0x01080200L,0x01080300L,
288 : : 0x00000210L,0x00000310L,0x00080210L,0x00080310L,
289 : : 0x01000210L,0x01000310L,0x01080210L,0x01080310L,
290 : : 0x00200200L,0x00200300L,0x00280200L,0x00280300L,
291 : : 0x01200200L,0x01200300L,0x01280200L,0x01280300L,
292 : : 0x00200210L,0x00200310L,0x00280210L,0x00280310L,
293 : : 0x01200210L,0x01200310L,0x01280210L,0x01280310L,
294 : : },{
295 : : /* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */
296 : : 0x00000000L,0x04000000L,0x00040000L,0x04040000L,
297 : : 0x00000002L,0x04000002L,0x00040002L,0x04040002L,
298 : : 0x00002000L,0x04002000L,0x00042000L,0x04042000L,
299 : : 0x00002002L,0x04002002L,0x00042002L,0x04042002L,
300 : : 0x00000020L,0x04000020L,0x00040020L,0x04040020L,
301 : : 0x00000022L,0x04000022L,0x00040022L,0x04040022L,
302 : : 0x00002020L,0x04002020L,0x00042020L,0x04042020L,
303 : : 0x00002022L,0x04002022L,0x00042022L,0x04042022L,
304 : : 0x00000800L,0x04000800L,0x00040800L,0x04040800L,
305 : : 0x00000802L,0x04000802L,0x00040802L,0x04040802L,
306 : : 0x00002800L,0x04002800L,0x00042800L,0x04042800L,
307 : : 0x00002802L,0x04002802L,0x00042802L,0x04042802L,
308 : : 0x00000820L,0x04000820L,0x00040820L,0x04040820L,
309 : : 0x00000822L,0x04000822L,0x00040822L,0x04040822L,
310 : : 0x00002820L,0x04002820L,0x00042820L,0x04042820L,
311 : : 0x00002822L,0x04002822L,0x00042822L,0x04042822L,
312 : : }};
313 : :
314 : 0 : int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule)
315 : : {
316 [ # # ]: 0 : if (DES_check_key)
317 : : {
318 : 0 : return DES_set_key_checked(key, schedule);
319 : : }
320 : : else
321 : : {
322 : 0 : DES_set_key_unchecked(key, schedule);
323 : 0 : return 0;
324 : : }
325 : : }
326 : :
327 : : /* return 0 if key parity is odd (correct),
328 : : * return -1 if key parity error,
329 : : * return -2 if illegal weak key.
330 : : */
331 : 20 : int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule)
332 : : {
333 [ + - ]: 20 : if (!DES_check_key_parity(key))
334 : : return(-1);
335 [ + - ]: 20 : if (DES_is_weak_key(key))
336 : : return(-2);
337 : 20 : DES_set_key_unchecked(key, schedule);
338 : 20 : return 0;
339 : : }
340 : :
341 : 614 : void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule)
342 : : {
343 : : __fips_constseg
344 : : static const int shifts2[16]={0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0};
345 : : register DES_LONG c,d,t,s,t2;
346 : : register const unsigned char *in;
347 : : register DES_LONG *k;
348 : : register int i;
349 : :
350 : : #ifdef OPENBSD_DEV_CRYPTO
351 : : memcpy(schedule->key,key,sizeof schedule->key);
352 : : schedule->session=NULL;
353 : : #endif
354 : 614 : k = &schedule->ks->deslong[0];
355 : 614 : in = &(*key)[0];
356 : :
357 : 614 : c2l(in,c);
358 : 614 : c2l(in,d);
359 : :
360 : : /* do PC1 in 47 simple operations :-)
361 : : * Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov)
362 : : * for the inspiration. :-) */
363 : 614 : PERM_OP (d,c,t,4,0x0f0f0f0fL);
364 : 614 : HPERM_OP(c,t,-2,0xcccc0000L);
365 : 614 : HPERM_OP(d,t,-2,0xcccc0000L);
366 : 614 : PERM_OP (d,c,t,1,0x55555555L);
367 : 614 : PERM_OP (c,d,t,8,0x00ff00ffL);
368 : 614 : PERM_OP (d,c,t,1,0x55555555L);
369 : 1842 : d= (((d&0x000000ffL)<<16L)| (d&0x0000ff00L) |
370 : 1228 : ((d&0x00ff0000L)>>16L)|((c&0xf0000000L)>>4L));
371 : 614 : c&=0x0fffffffL;
372 : :
373 [ + + ]: 10438 : for (i=0; i<ITERATIONS; i++)
374 : : {
375 [ + + ]: 9824 : if (shifts2[i])
376 : 7368 : { c=((c>>2L)|(c<<26L)); d=((d>>2L)|(d<<26L)); }
377 : : else
378 : 2456 : { c=((c>>1L)|(c<<27L)); d=((d>>1L)|(d<<27L)); }
379 : 9824 : c&=0x0fffffffL;
380 : 9824 : d&=0x0fffffffL;
381 : : /* could be a few less shifts but I am to lazy at this
382 : : * point in time to investigate */
383 : 29472 : s= des_skb[0][ (c )&0x3f ]|
384 : 19648 : des_skb[1][((c>> 6L)&0x03)|((c>> 7L)&0x3c)]|
385 : 9824 : des_skb[2][((c>>13L)&0x0f)|((c>>14L)&0x30)]|
386 : 19648 : des_skb[3][((c>>20L)&0x01)|((c>>21L)&0x06) |
387 : 9824 : ((c>>22L)&0x38)];
388 : 29472 : t= des_skb[4][ (d )&0x3f ]|
389 : 19648 : des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]|
390 : 9824 : des_skb[6][ (d>>15L)&0x3f ]|
391 : 9824 : des_skb[7][((d>>21L)&0x0f)|((d>>22L)&0x30)];
392 : :
393 : : /* table contained 0213 4657 */
394 : 9824 : t2=((t<<16L)|(s&0x0000ffffL))&0xffffffffL;
395 : 9824 : *(k++)=ROTATE(t2,30)&0xffffffffL;
396 : :
397 : 9824 : t2=((s>>16L)|(t&0xffff0000L));
398 : 9824 : *(k++)=ROTATE(t2,26)&0xffffffffL;
399 : : }
400 : 614 : }
401 : :
402 : 0 : int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule)
403 : : {
404 : 0 : return(DES_set_key(key,schedule));
405 : : }
406 : : /*
407 : : #undef des_fixup_key_parity
408 : : void des_fixup_key_parity(des_cblock *key)
409 : : {
410 : : des_set_odd_parity(key);
411 : : }
412 : : */
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