Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/des/set_key.c |
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1 | /* | - | ||||||
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | - | ||||||
3 | * | - | ||||||
4 | * Licensed under the OpenSSL license (the "License"). You may not use | - | ||||||
5 | * this file except in compliance with the License. You can obtain a copy | - | ||||||
6 | * in the file LICENSE in the source distribution or at | - | ||||||
7 | * https://www.openssl.org/source/license.html | - | ||||||
8 | */ | - | ||||||
9 | - | |||||||
10 | /*- | - | ||||||
11 | * set_key.c v 1.4 eay 24/9/91 | - | ||||||
12 | * 1.4 Speed up by 400% :-) | - | ||||||
13 | * 1.3 added register declarations. | - | ||||||
14 | * 1.2 unrolled make_key_sched a bit more | - | ||||||
15 | * 1.1 added norm_expand_bits | - | ||||||
16 | * 1.0 First working version | - | ||||||
17 | */ | - | ||||||
18 | #include <openssl/crypto.h> | - | ||||||
19 | #include "des_locl.h" | - | ||||||
20 | - | |||||||
21 | /* defaults to false */ | - | ||||||
22 | OPENSSL_IMPLEMENT_GLOBAL(int, DES_check_key, 0) | - | ||||||
23 | - | |||||||
24 | static const unsigned char odd_parity[256] = { | - | ||||||
25 | 1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14, | - | ||||||
26 | 16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31, | - | ||||||
27 | 32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47, | - | ||||||
28 | 49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62, | - | ||||||
29 | 64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79, | - | ||||||
30 | 81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94, | - | ||||||
31 | 97, 97, 98, 98, 100, 100, 103, 103, 104, 104, 107, 107, 109, 109, 110, | - | ||||||
32 | 110, | - | ||||||
33 | 112, 112, 115, 115, 117, 117, 118, 118, 121, 121, 122, 122, 124, 124, 127, | - | ||||||
34 | 127, | - | ||||||
35 | 128, 128, 131, 131, 133, 133, 134, 134, 137, 137, 138, 138, 140, 140, 143, | - | ||||||
36 | 143, | - | ||||||
37 | 145, 145, 146, 146, 148, 148, 151, 151, 152, 152, 155, 155, 157, 157, 158, | - | ||||||
38 | 158, | - | ||||||
39 | 161, 161, 162, 162, 164, 164, 167, 167, 168, 168, 171, 171, 173, 173, 174, | - | ||||||
40 | 174, | - | ||||||
41 | 176, 176, 179, 179, 181, 181, 182, 182, 185, 185, 186, 186, 188, 188, 191, | - | ||||||
42 | 191, | - | ||||||
43 | 193, 193, 194, 194, 196, 196, 199, 199, 200, 200, 203, 203, 205, 205, 206, | - | ||||||
44 | 206, | - | ||||||
45 | 208, 208, 211, 211, 213, 213, 214, 214, 217, 217, 218, 218, 220, 220, 223, | - | ||||||
46 | 223, | - | ||||||
47 | 224, 224, 227, 227, 229, 229, 230, 230, 233, 233, 234, 234, 236, 236, 239, | - | ||||||
48 | 239, | - | ||||||
49 | 241, 241, 242, 242, 244, 244, 247, 247, 248, 248, 251, 251, 253, 253, 254, | - | ||||||
50 | 254 | - | ||||||
51 | }; | - | ||||||
52 | - | |||||||
53 | void DES_set_odd_parity(DES_cblock *key) | - | ||||||
54 | { | - | ||||||
55 | unsigned int i; | - | ||||||
56 | - | |||||||
57 | for (i = 0; i < DES_KEY_SZ; i++)
| 113-904 | ||||||
58 | (*key)[i] = odd_parity[(*key)[i]]; executed 904 times by 1 test: (*key)[i] = odd_parity[(*key)[i]]; Executed by:
| 904 | ||||||
59 | } executed 113 times by 1 test: end of block Executed by:
| 113 | ||||||
60 | - | |||||||
61 | int DES_check_key_parity(const_DES_cblock *key) | - | ||||||
62 | { | - | ||||||
63 | unsigned int i; | - | ||||||
64 | - | |||||||
65 | for (i = 0; i < DES_KEY_SZ; i++) {
| 25-200 | ||||||
66 | if ((*key)[i] != odd_parity[(*key)[i]])
| 0-200 | ||||||
67 | return 0; never executed: return 0; | 0 | ||||||
68 | } executed 200 times by 1 test: end of block Executed by:
| 200 | ||||||
69 | return 1; executed 25 times by 1 test: return 1; Executed by:
| 25 | ||||||
70 | } | - | ||||||
71 | - | |||||||
72 | /*- | - | ||||||
73 | * Weak and semi weak keys as taken from | - | ||||||
74 | * %A D.W. Davies | - | ||||||
75 | * %A W.L. Price | - | ||||||
76 | * %T Security for Computer Networks | - | ||||||
77 | * %I John Wiley & Sons | - | ||||||
78 | * %D 1984 | - | ||||||
79 | */ | - | ||||||
80 | #define NUM_WEAK_KEY 16 | - | ||||||
81 | static const DES_cblock weak_keys[NUM_WEAK_KEY] = { | - | ||||||
82 | /* weak keys */ | - | ||||||
83 | {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, | - | ||||||
84 | {0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE}, | - | ||||||
85 | {0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E}, | - | ||||||
86 | {0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1}, | - | ||||||
87 | /* semi-weak keys */ | - | ||||||
88 | {0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE}, | - | ||||||
89 | {0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01}, | - | ||||||
90 | {0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1}, | - | ||||||
91 | {0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E}, | - | ||||||
92 | {0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1}, | - | ||||||
93 | {0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01}, | - | ||||||
94 | {0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE}, | - | ||||||
95 | {0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E}, | - | ||||||
96 | {0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E}, | - | ||||||
97 | {0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01}, | - | ||||||
98 | {0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE}, | - | ||||||
99 | {0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1} | - | ||||||
100 | }; | - | ||||||
101 | - | |||||||
102 | int DES_is_weak_key(const_DES_cblock *key) | - | ||||||
103 | { | - | ||||||
104 | int i; | - | ||||||
105 | - | |||||||
106 | for (i = 0; i < NUM_WEAK_KEY; i++)
| 25-400 | ||||||
107 | if (memcmp(weak_keys[i], key, sizeof(DES_cblock)) == 0)
| 0-400 | ||||||
108 | return 1; never executed: return 1; | 0 | ||||||
109 | return 0; executed 25 times by 1 test: return 0; Executed by:
| 25 | ||||||
110 | } | - | ||||||
111 | - | |||||||
112 | /*- | - | ||||||
113 | * NOW DEFINED IN des_local.h | - | ||||||
114 | * See ecb_encrypt.c for a pseudo description of these macros. | - | ||||||
115 | * #define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ | - | ||||||
116 | * (b)^=(t),\ | - | ||||||
117 | * (a)=((a)^((t)<<(n)))) | - | ||||||
118 | */ | - | ||||||
119 | - | |||||||
120 | #define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ | - | ||||||
121 | (a)=(a)^(t)^(t>>(16-(n)))) | - | ||||||
122 | - | |||||||
123 | static const DES_LONG des_skb[8][64] = { | - | ||||||
124 | { | - | ||||||
125 | /* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ | - | ||||||
126 | 0x00000000L, 0x00000010L, 0x20000000L, 0x20000010L, | - | ||||||
127 | 0x00010000L, 0x00010010L, 0x20010000L, 0x20010010L, | - | ||||||
128 | 0x00000800L, 0x00000810L, 0x20000800L, 0x20000810L, | - | ||||||
129 | 0x00010800L, 0x00010810L, 0x20010800L, 0x20010810L, | - | ||||||
130 | 0x00000020L, 0x00000030L, 0x20000020L, 0x20000030L, | - | ||||||
131 | 0x00010020L, 0x00010030L, 0x20010020L, 0x20010030L, | - | ||||||
132 | 0x00000820L, 0x00000830L, 0x20000820L, 0x20000830L, | - | ||||||
133 | 0x00010820L, 0x00010830L, 0x20010820L, 0x20010830L, | - | ||||||
134 | 0x00080000L, 0x00080010L, 0x20080000L, 0x20080010L, | - | ||||||
135 | 0x00090000L, 0x00090010L, 0x20090000L, 0x20090010L, | - | ||||||
136 | 0x00080800L, 0x00080810L, 0x20080800L, 0x20080810L, | - | ||||||
137 | 0x00090800L, 0x00090810L, 0x20090800L, 0x20090810L, | - | ||||||
138 | 0x00080020L, 0x00080030L, 0x20080020L, 0x20080030L, | - | ||||||
139 | 0x00090020L, 0x00090030L, 0x20090020L, 0x20090030L, | - | ||||||
140 | 0x00080820L, 0x00080830L, 0x20080820L, 0x20080830L, | - | ||||||
141 | 0x00090820L, 0x00090830L, 0x20090820L, 0x20090830L, | - | ||||||
142 | }, | - | ||||||
143 | { | - | ||||||
144 | /* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */ | - | ||||||
145 | 0x00000000L, 0x02000000L, 0x00002000L, 0x02002000L, | - | ||||||
146 | 0x00200000L, 0x02200000L, 0x00202000L, 0x02202000L, | - | ||||||
147 | 0x00000004L, 0x02000004L, 0x00002004L, 0x02002004L, | - | ||||||
148 | 0x00200004L, 0x02200004L, 0x00202004L, 0x02202004L, | - | ||||||
149 | 0x00000400L, 0x02000400L, 0x00002400L, 0x02002400L, | - | ||||||
150 | 0x00200400L, 0x02200400L, 0x00202400L, 0x02202400L, | - | ||||||
151 | 0x00000404L, 0x02000404L, 0x00002404L, 0x02002404L, | - | ||||||
152 | 0x00200404L, 0x02200404L, 0x00202404L, 0x02202404L, | - | ||||||
153 | 0x10000000L, 0x12000000L, 0x10002000L, 0x12002000L, | - | ||||||
154 | 0x10200000L, 0x12200000L, 0x10202000L, 0x12202000L, | - | ||||||
155 | 0x10000004L, 0x12000004L, 0x10002004L, 0x12002004L, | - | ||||||
156 | 0x10200004L, 0x12200004L, 0x10202004L, 0x12202004L, | - | ||||||
157 | 0x10000400L, 0x12000400L, 0x10002400L, 0x12002400L, | - | ||||||
158 | 0x10200400L, 0x12200400L, 0x10202400L, 0x12202400L, | - | ||||||
159 | 0x10000404L, 0x12000404L, 0x10002404L, 0x12002404L, | - | ||||||
160 | 0x10200404L, 0x12200404L, 0x10202404L, 0x12202404L, | - | ||||||
161 | }, | - | ||||||
162 | { | - | ||||||
163 | /* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */ | - | ||||||
164 | 0x00000000L, 0x00000001L, 0x00040000L, 0x00040001L, | - | ||||||
165 | 0x01000000L, 0x01000001L, 0x01040000L, 0x01040001L, | - | ||||||
166 | 0x00000002L, 0x00000003L, 0x00040002L, 0x00040003L, | - | ||||||
167 | 0x01000002L, 0x01000003L, 0x01040002L, 0x01040003L, | - | ||||||
168 | 0x00000200L, 0x00000201L, 0x00040200L, 0x00040201L, | - | ||||||
169 | 0x01000200L, 0x01000201L, 0x01040200L, 0x01040201L, | - | ||||||
170 | 0x00000202L, 0x00000203L, 0x00040202L, 0x00040203L, | - | ||||||
171 | 0x01000202L, 0x01000203L, 0x01040202L, 0x01040203L, | - | ||||||
172 | 0x08000000L, 0x08000001L, 0x08040000L, 0x08040001L, | - | ||||||
173 | 0x09000000L, 0x09000001L, 0x09040000L, 0x09040001L, | - | ||||||
174 | 0x08000002L, 0x08000003L, 0x08040002L, 0x08040003L, | - | ||||||
175 | 0x09000002L, 0x09000003L, 0x09040002L, 0x09040003L, | - | ||||||
176 | 0x08000200L, 0x08000201L, 0x08040200L, 0x08040201L, | - | ||||||
177 | 0x09000200L, 0x09000201L, 0x09040200L, 0x09040201L, | - | ||||||
178 | 0x08000202L, 0x08000203L, 0x08040202L, 0x08040203L, | - | ||||||
179 | 0x09000202L, 0x09000203L, 0x09040202L, 0x09040203L, | - | ||||||
180 | }, | - | ||||||
181 | { | - | ||||||
182 | /* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */ | - | ||||||
183 | 0x00000000L, 0x00100000L, 0x00000100L, 0x00100100L, | - | ||||||
184 | 0x00000008L, 0x00100008L, 0x00000108L, 0x00100108L, | - | ||||||
185 | 0x00001000L, 0x00101000L, 0x00001100L, 0x00101100L, | - | ||||||
186 | 0x00001008L, 0x00101008L, 0x00001108L, 0x00101108L, | - | ||||||
187 | 0x04000000L, 0x04100000L, 0x04000100L, 0x04100100L, | - | ||||||
188 | 0x04000008L, 0x04100008L, 0x04000108L, 0x04100108L, | - | ||||||
189 | 0x04001000L, 0x04101000L, 0x04001100L, 0x04101100L, | - | ||||||
190 | 0x04001008L, 0x04101008L, 0x04001108L, 0x04101108L, | - | ||||||
191 | 0x00020000L, 0x00120000L, 0x00020100L, 0x00120100L, | - | ||||||
192 | 0x00020008L, 0x00120008L, 0x00020108L, 0x00120108L, | - | ||||||
193 | 0x00021000L, 0x00121000L, 0x00021100L, 0x00121100L, | - | ||||||
194 | 0x00021008L, 0x00121008L, 0x00021108L, 0x00121108L, | - | ||||||
195 | 0x04020000L, 0x04120000L, 0x04020100L, 0x04120100L, | - | ||||||
196 | 0x04020008L, 0x04120008L, 0x04020108L, 0x04120108L, | - | ||||||
197 | 0x04021000L, 0x04121000L, 0x04021100L, 0x04121100L, | - | ||||||
198 | 0x04021008L, 0x04121008L, 0x04021108L, 0x04121108L, | - | ||||||
199 | }, | - | ||||||
200 | { | - | ||||||
201 | /* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ | - | ||||||
202 | 0x00000000L, 0x10000000L, 0x00010000L, 0x10010000L, | - | ||||||
203 | 0x00000004L, 0x10000004L, 0x00010004L, 0x10010004L, | - | ||||||
204 | 0x20000000L, 0x30000000L, 0x20010000L, 0x30010000L, | - | ||||||
205 | 0x20000004L, 0x30000004L, 0x20010004L, 0x30010004L, | - | ||||||
206 | 0x00100000L, 0x10100000L, 0x00110000L, 0x10110000L, | - | ||||||
207 | 0x00100004L, 0x10100004L, 0x00110004L, 0x10110004L, | - | ||||||
208 | 0x20100000L, 0x30100000L, 0x20110000L, 0x30110000L, | - | ||||||
209 | 0x20100004L, 0x30100004L, 0x20110004L, 0x30110004L, | - | ||||||
210 | 0x00001000L, 0x10001000L, 0x00011000L, 0x10011000L, | - | ||||||
211 | 0x00001004L, 0x10001004L, 0x00011004L, 0x10011004L, | - | ||||||
212 | 0x20001000L, 0x30001000L, 0x20011000L, 0x30011000L, | - | ||||||
213 | 0x20001004L, 0x30001004L, 0x20011004L, 0x30011004L, | - | ||||||
214 | 0x00101000L, 0x10101000L, 0x00111000L, 0x10111000L, | - | ||||||
215 | 0x00101004L, 0x10101004L, 0x00111004L, 0x10111004L, | - | ||||||
216 | 0x20101000L, 0x30101000L, 0x20111000L, 0x30111000L, | - | ||||||
217 | 0x20101004L, 0x30101004L, 0x20111004L, 0x30111004L, | - | ||||||
218 | }, | - | ||||||
219 | { | - | ||||||
220 | /* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */ | - | ||||||
221 | 0x00000000L, 0x08000000L, 0x00000008L, 0x08000008L, | - | ||||||
222 | 0x00000400L, 0x08000400L, 0x00000408L, 0x08000408L, | - | ||||||
223 | 0x00020000L, 0x08020000L, 0x00020008L, 0x08020008L, | - | ||||||
224 | 0x00020400L, 0x08020400L, 0x00020408L, 0x08020408L, | - | ||||||
225 | 0x00000001L, 0x08000001L, 0x00000009L, 0x08000009L, | - | ||||||
226 | 0x00000401L, 0x08000401L, 0x00000409L, 0x08000409L, | - | ||||||
227 | 0x00020001L, 0x08020001L, 0x00020009L, 0x08020009L, | - | ||||||
228 | 0x00020401L, 0x08020401L, 0x00020409L, 0x08020409L, | - | ||||||
229 | 0x02000000L, 0x0A000000L, 0x02000008L, 0x0A000008L, | - | ||||||
230 | 0x02000400L, 0x0A000400L, 0x02000408L, 0x0A000408L, | - | ||||||
231 | 0x02020000L, 0x0A020000L, 0x02020008L, 0x0A020008L, | - | ||||||
232 | 0x02020400L, 0x0A020400L, 0x02020408L, 0x0A020408L, | - | ||||||
233 | 0x02000001L, 0x0A000001L, 0x02000009L, 0x0A000009L, | - | ||||||
234 | 0x02000401L, 0x0A000401L, 0x02000409L, 0x0A000409L, | - | ||||||
235 | 0x02020001L, 0x0A020001L, 0x02020009L, 0x0A020009L, | - | ||||||
236 | 0x02020401L, 0x0A020401L, 0x02020409L, 0x0A020409L, | - | ||||||
237 | }, | - | ||||||
238 | { | - | ||||||
239 | /* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */ | - | ||||||
240 | 0x00000000L, 0x00000100L, 0x00080000L, 0x00080100L, | - | ||||||
241 | 0x01000000L, 0x01000100L, 0x01080000L, 0x01080100L, | - | ||||||
242 | 0x00000010L, 0x00000110L, 0x00080010L, 0x00080110L, | - | ||||||
243 | 0x01000010L, 0x01000110L, 0x01080010L, 0x01080110L, | - | ||||||
244 | 0x00200000L, 0x00200100L, 0x00280000L, 0x00280100L, | - | ||||||
245 | 0x01200000L, 0x01200100L, 0x01280000L, 0x01280100L, | - | ||||||
246 | 0x00200010L, 0x00200110L, 0x00280010L, 0x00280110L, | - | ||||||
247 | 0x01200010L, 0x01200110L, 0x01280010L, 0x01280110L, | - | ||||||
248 | 0x00000200L, 0x00000300L, 0x00080200L, 0x00080300L, | - | ||||||
249 | 0x01000200L, 0x01000300L, 0x01080200L, 0x01080300L, | - | ||||||
250 | 0x00000210L, 0x00000310L, 0x00080210L, 0x00080310L, | - | ||||||
251 | 0x01000210L, 0x01000310L, 0x01080210L, 0x01080310L, | - | ||||||
252 | 0x00200200L, 0x00200300L, 0x00280200L, 0x00280300L, | - | ||||||
253 | 0x01200200L, 0x01200300L, 0x01280200L, 0x01280300L, | - | ||||||
254 | 0x00200210L, 0x00200310L, 0x00280210L, 0x00280310L, | - | ||||||
255 | 0x01200210L, 0x01200310L, 0x01280210L, 0x01280310L, | - | ||||||
256 | }, | - | ||||||
257 | { | - | ||||||
258 | /* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */ | - | ||||||
259 | 0x00000000L, 0x04000000L, 0x00040000L, 0x04040000L, | - | ||||||
260 | 0x00000002L, 0x04000002L, 0x00040002L, 0x04040002L, | - | ||||||
261 | 0x00002000L, 0x04002000L, 0x00042000L, 0x04042000L, | - | ||||||
262 | 0x00002002L, 0x04002002L, 0x00042002L, 0x04042002L, | - | ||||||
263 | 0x00000020L, 0x04000020L, 0x00040020L, 0x04040020L, | - | ||||||
264 | 0x00000022L, 0x04000022L, 0x00040022L, 0x04040022L, | - | ||||||
265 | 0x00002020L, 0x04002020L, 0x00042020L, 0x04042020L, | - | ||||||
266 | 0x00002022L, 0x04002022L, 0x00042022L, 0x04042022L, | - | ||||||
267 | 0x00000800L, 0x04000800L, 0x00040800L, 0x04040800L, | - | ||||||
268 | 0x00000802L, 0x04000802L, 0x00040802L, 0x04040802L, | - | ||||||
269 | 0x00002800L, 0x04002800L, 0x00042800L, 0x04042800L, | - | ||||||
270 | 0x00002802L, 0x04002802L, 0x00042802L, 0x04042802L, | - | ||||||
271 | 0x00000820L, 0x04000820L, 0x00040820L, 0x04040820L, | - | ||||||
272 | 0x00000822L, 0x04000822L, 0x00040822L, 0x04040822L, | - | ||||||
273 | 0x00002820L, 0x04002820L, 0x00042820L, 0x04042820L, | - | ||||||
274 | 0x00002822L, 0x04002822L, 0x00042822L, 0x04042822L, | - | ||||||
275 | } | - | ||||||
276 | }; | - | ||||||
277 | - | |||||||
278 | int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule) | - | ||||||
279 | { | - | ||||||
280 | if (DES_check_key) {
| 0 | ||||||
281 | return DES_set_key_checked(key, schedule); never executed: return DES_set_key_checked(key, schedule); | 0 | ||||||
282 | } else { | - | ||||||
283 | DES_set_key_unchecked(key, schedule); | - | ||||||
284 | return 0; never executed: return 0; | 0 | ||||||
285 | } | - | ||||||
286 | } | - | ||||||
287 | - | |||||||
288 | /*- | - | ||||||
289 | * return 0 if key parity is odd (correct), | - | ||||||
290 | * return -1 if key parity error, | - | ||||||
291 | * return -2 if illegal weak key. | - | ||||||
292 | */ | - | ||||||
293 | int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule) | - | ||||||
294 | { | - | ||||||
295 | if (!DES_check_key_parity(key))
| 0-25 | ||||||
296 | return -1; never executed: return -1; | 0 | ||||||
297 | if (DES_is_weak_key(key))
| 0-25 | ||||||
298 | return -2; never executed: return -2; | 0 | ||||||
299 | DES_set_key_unchecked(key, schedule); | - | ||||||
300 | return 0; executed 25 times by 1 test: return 0; Executed by:
| 25 | ||||||
301 | } | - | ||||||
302 | - | |||||||
303 | void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule) | - | ||||||
304 | { | - | ||||||
305 | static const int shifts2[16] = | - | ||||||
306 | { 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0 }; | - | ||||||
307 | register DES_LONG c, d, t, s, t2; | - | ||||||
308 | register const unsigned char *in; | - | ||||||
309 | register DES_LONG *k; | - | ||||||
310 | register int i; | - | ||||||
311 | - | |||||||
312 | #ifdef OPENBSD_DEV_CRYPTO | - | ||||||
313 | memcpy(schedule->key, key, sizeof(schedule->key)); | - | ||||||
314 | schedule->session = NULL; | - | ||||||
315 | #endif | - | ||||||
316 | k = &schedule->ks->deslong[0]; | - | ||||||
317 | in = &(*key)[0]; | - | ||||||
318 | - | |||||||
319 | c2l(in, c); | - | ||||||
320 | c2l(in, d); | - | ||||||
321 | - | |||||||
322 | /* | - | ||||||
323 | * do PC1 in 47 simple operations. Thanks to John Fletcher | - | ||||||
324 | * for the inspiration. | - | ||||||
325 | */ | - | ||||||
326 | PERM_OP(d, c, t, 4, 0x0f0f0f0fL); | - | ||||||
327 | HPERM_OP(c, t, -2, 0xcccc0000L); | - | ||||||
328 | HPERM_OP(d, t, -2, 0xcccc0000L); | - | ||||||
329 | PERM_OP(d, c, t, 1, 0x55555555L); | - | ||||||
330 | PERM_OP(c, d, t, 8, 0x00ff00ffL); | - | ||||||
331 | PERM_OP(d, c, t, 1, 0x55555555L); | - | ||||||
332 | d = (((d & 0x000000ffL) << 16L) | (d & 0x0000ff00L) | | - | ||||||
333 | ((d & 0x00ff0000L) >> 16L) | ((c & 0xf0000000L) >> 4L)); | - | ||||||
334 | c &= 0x0fffffffL; | - | ||||||
335 | - | |||||||
336 | for (i = 0; i < ITERATIONS; i++) {
| 873-13968 | ||||||
337 | if (shifts2[i]) {
| 3492-10476 | ||||||
338 | c = ((c >> 2L) | (c << 26L)); | - | ||||||
339 | d = ((d >> 2L) | (d << 26L)); | - | ||||||
340 | } else { executed 10476 times by 1 test: end of block Executed by:
| 10476 | ||||||
341 | c = ((c >> 1L) | (c << 27L)); | - | ||||||
342 | d = ((d >> 1L) | (d << 27L)); | - | ||||||
343 | } executed 3492 times by 1 test: end of block Executed by:
| 3492 | ||||||
344 | c &= 0x0fffffffL; | - | ||||||
345 | d &= 0x0fffffffL; | - | ||||||
346 | /* | - | ||||||
347 | * could be a few less shifts but I am to lazy at this point in time | - | ||||||
348 | * to investigate | - | ||||||
349 | */ | - | ||||||
350 | s = des_skb[0][(c) & 0x3f] | | - | ||||||
351 | des_skb[1][((c >> 6L) & 0x03) | ((c >> 7L) & 0x3c)] | | - | ||||||
352 | des_skb[2][((c >> 13L) & 0x0f) | ((c >> 14L) & 0x30)] | | - | ||||||
353 | des_skb[3][((c >> 20L) & 0x01) | ((c >> 21L) & 0x06) | | - | ||||||
354 | ((c >> 22L) & 0x38)]; | - | ||||||
355 | t = des_skb[4][(d) & 0x3f] | | - | ||||||
356 | des_skb[5][((d >> 7L) & 0x03) | ((d >> 8L) & 0x3c)] | | - | ||||||
357 | des_skb[6][(d >> 15L) & 0x3f] | | - | ||||||
358 | des_skb[7][((d >> 21L) & 0x0f) | ((d >> 22L) & 0x30)]; | - | ||||||
359 | - | |||||||
360 | /* table contained 0213 4657 */ | - | ||||||
361 | t2 = ((t << 16L) | (s & 0x0000ffffL)) & 0xffffffffL; | - | ||||||
362 | *(k++) = ROTATE(t2, 30) & 0xffffffffL; | - | ||||||
363 | - | |||||||
364 | t2 = ((s >> 16L) | (t & 0xffff0000L)); | - | ||||||
365 | *(k++) = ROTATE(t2, 26) & 0xffffffffL; | - | ||||||
366 | } executed 13968 times by 1 test: end of block Executed by:
| 13968 | ||||||
367 | } executed 873 times by 1 test: end of block Executed by:
| 873 | ||||||
368 | - | |||||||
369 | int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule) | - | ||||||
370 | { | - | ||||||
371 | return DES_set_key(key, schedule); never executed: return DES_set_key(key, schedule); | 0 | ||||||
372 | } | - | ||||||
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