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2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 
 kernel/crypto/des_generic.c
....@@ -1,15 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Cryptographic API.
34  *
45  * DES & Triple DES EDE Cipher Algorithms.
56  *
67  * Copyright (c) 2005 Dag Arne Osvik <da@osvik.no>
7
- *
8
- * This program is free software; you can redistribute it and/or modify
9
- * it under the terms of the GNU General Public License as published by
10
- * the Free Software Foundation; either version 2 of the License, or
11
- * (at your option) any later version.
12
- *
138  */
149 
1510 #include <asm/byteorder.h>
....@@ -18,924 +13,73 @@
1813 #include <linux/module.h>
1914 #include <linux/errno.h>
2015 #include <linux/crypto.h>
21
-#include <linux/types.h>
2216 
23
-#include <crypto/des.h>
24
-
25
-#define ROL(x, r) ((x) = rol32((x), (r)))
26
-#define ROR(x, r) ((x) = ror32((x), (r)))
27
-
28
-struct des_ctx {
29
-	u32 expkey[DES_EXPKEY_WORDS];
30
-};
31
-
32
-struct des3_ede_ctx {
33
-	u32 expkey[DES3_EDE_EXPKEY_WORDS];
34
-};
35
-
36
-/* Lookup tables for key expansion */
37
-
38
-static const u8 pc1[256] = {
39
-	0x00, 0x00, 0x40, 0x04, 0x10, 0x10, 0x50, 0x14,
40
-	0x04, 0x40, 0x44, 0x44, 0x14, 0x50, 0x54, 0x54,
41
-	0x02, 0x02, 0x42, 0x06, 0x12, 0x12, 0x52, 0x16,
42
-	0x06, 0x42, 0x46, 0x46, 0x16, 0x52, 0x56, 0x56,
43
-	0x80, 0x08, 0xc0, 0x0c, 0x90, 0x18, 0xd0, 0x1c,
44
-	0x84, 0x48, 0xc4, 0x4c, 0x94, 0x58, 0xd4, 0x5c,
45
-	0x82, 0x0a, 0xc2, 0x0e, 0x92, 0x1a, 0xd2, 0x1e,
46
-	0x86, 0x4a, 0xc6, 0x4e, 0x96, 0x5a, 0xd6, 0x5e,
47
-	0x20, 0x20, 0x60, 0x24, 0x30, 0x30, 0x70, 0x34,
48
-	0x24, 0x60, 0x64, 0x64, 0x34, 0x70, 0x74, 0x74,
49
-	0x22, 0x22, 0x62, 0x26, 0x32, 0x32, 0x72, 0x36,
50
-	0x26, 0x62, 0x66, 0x66, 0x36, 0x72, 0x76, 0x76,
51
-	0xa0, 0x28, 0xe0, 0x2c, 0xb0, 0x38, 0xf0, 0x3c,
52
-	0xa4, 0x68, 0xe4, 0x6c, 0xb4, 0x78, 0xf4, 0x7c,
53
-	0xa2, 0x2a, 0xe2, 0x2e, 0xb2, 0x3a, 0xf2, 0x3e,
54
-	0xa6, 0x6a, 0xe6, 0x6e, 0xb6, 0x7a, 0xf6, 0x7e,
55
-	0x08, 0x80, 0x48, 0x84, 0x18, 0x90, 0x58, 0x94,
56
-	0x0c, 0xc0, 0x4c, 0xc4, 0x1c, 0xd0, 0x5c, 0xd4,
57
-	0x0a, 0x82, 0x4a, 0x86, 0x1a, 0x92, 0x5a, 0x96,
58
-	0x0e, 0xc2, 0x4e, 0xc6, 0x1e, 0xd2, 0x5e, 0xd6,
59
-	0x88, 0x88, 0xc8, 0x8c, 0x98, 0x98, 0xd8, 0x9c,
60
-	0x8c, 0xc8, 0xcc, 0xcc, 0x9c, 0xd8, 0xdc, 0xdc,
61
-	0x8a, 0x8a, 0xca, 0x8e, 0x9a, 0x9a, 0xda, 0x9e,
62
-	0x8e, 0xca, 0xce, 0xce, 0x9e, 0xda, 0xde, 0xde,
63
-	0x28, 0xa0, 0x68, 0xa4, 0x38, 0xb0, 0x78, 0xb4,
64
-	0x2c, 0xe0, 0x6c, 0xe4, 0x3c, 0xf0, 0x7c, 0xf4,
65
-	0x2a, 0xa2, 0x6a, 0xa6, 0x3a, 0xb2, 0x7a, 0xb6,
66
-	0x2e, 0xe2, 0x6e, 0xe6, 0x3e, 0xf2, 0x7e, 0xf6,
67
-	0xa8, 0xa8, 0xe8, 0xac, 0xb8, 0xb8, 0xf8, 0xbc,
68
-	0xac, 0xe8, 0xec, 0xec, 0xbc, 0xf8, 0xfc, 0xfc,
69
-	0xaa, 0xaa, 0xea, 0xae, 0xba, 0xba, 0xfa, 0xbe,
70
-	0xae, 0xea, 0xee, 0xee, 0xbe, 0xfa, 0xfe, 0xfe
71
-};
72
-
73
-static const u8 rs[256] = {
74
-	0x00, 0x00, 0x80, 0x80, 0x02, 0x02, 0x82, 0x82,
75
-	0x04, 0x04, 0x84, 0x84, 0x06, 0x06, 0x86, 0x86,
76
-	0x08, 0x08, 0x88, 0x88, 0x0a, 0x0a, 0x8a, 0x8a,
77
-	0x0c, 0x0c, 0x8c, 0x8c, 0x0e, 0x0e, 0x8e, 0x8e,
78
-	0x10, 0x10, 0x90, 0x90, 0x12, 0x12, 0x92, 0x92,
79
-	0x14, 0x14, 0x94, 0x94, 0x16, 0x16, 0x96, 0x96,
80
-	0x18, 0x18, 0x98, 0x98, 0x1a, 0x1a, 0x9a, 0x9a,
81
-	0x1c, 0x1c, 0x9c, 0x9c, 0x1e, 0x1e, 0x9e, 0x9e,
82
-	0x20, 0x20, 0xa0, 0xa0, 0x22, 0x22, 0xa2, 0xa2,
83
-	0x24, 0x24, 0xa4, 0xa4, 0x26, 0x26, 0xa6, 0xa6,
84
-	0x28, 0x28, 0xa8, 0xa8, 0x2a, 0x2a, 0xaa, 0xaa,
85
-	0x2c, 0x2c, 0xac, 0xac, 0x2e, 0x2e, 0xae, 0xae,
86
-	0x30, 0x30, 0xb0, 0xb0, 0x32, 0x32, 0xb2, 0xb2,
87
-	0x34, 0x34, 0xb4, 0xb4, 0x36, 0x36, 0xb6, 0xb6,
88
-	0x38, 0x38, 0xb8, 0xb8, 0x3a, 0x3a, 0xba, 0xba,
89
-	0x3c, 0x3c, 0xbc, 0xbc, 0x3e, 0x3e, 0xbe, 0xbe,
90
-	0x40, 0x40, 0xc0, 0xc0, 0x42, 0x42, 0xc2, 0xc2,
91
-	0x44, 0x44, 0xc4, 0xc4, 0x46, 0x46, 0xc6, 0xc6,
92
-	0x48, 0x48, 0xc8, 0xc8, 0x4a, 0x4a, 0xca, 0xca,
93
-	0x4c, 0x4c, 0xcc, 0xcc, 0x4e, 0x4e, 0xce, 0xce,
94
-	0x50, 0x50, 0xd0, 0xd0, 0x52, 0x52, 0xd2, 0xd2,
95
-	0x54, 0x54, 0xd4, 0xd4, 0x56, 0x56, 0xd6, 0xd6,
96
-	0x58, 0x58, 0xd8, 0xd8, 0x5a, 0x5a, 0xda, 0xda,
97
-	0x5c, 0x5c, 0xdc, 0xdc, 0x5e, 0x5e, 0xde, 0xde,
98
-	0x60, 0x60, 0xe0, 0xe0, 0x62, 0x62, 0xe2, 0xe2,
99
-	0x64, 0x64, 0xe4, 0xe4, 0x66, 0x66, 0xe6, 0xe6,
100
-	0x68, 0x68, 0xe8, 0xe8, 0x6a, 0x6a, 0xea, 0xea,
101
-	0x6c, 0x6c, 0xec, 0xec, 0x6e, 0x6e, 0xee, 0xee,
102
-	0x70, 0x70, 0xf0, 0xf0, 0x72, 0x72, 0xf2, 0xf2,
103
-	0x74, 0x74, 0xf4, 0xf4, 0x76, 0x76, 0xf6, 0xf6,
104
-	0x78, 0x78, 0xf8, 0xf8, 0x7a, 0x7a, 0xfa, 0xfa,
105
-	0x7c, 0x7c, 0xfc, 0xfc, 0x7e, 0x7e, 0xfe, 0xfe
106
-};
107
-
108
-static const u32 pc2[1024] = {
109
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
110
-	0x00040000, 0x00000000, 0x04000000, 0x00100000,
111
-	0x00400000, 0x00000008, 0x00000800, 0x40000000,
112
-	0x00440000, 0x00000008, 0x04000800, 0x40100000,
113
-	0x00000400, 0x00000020, 0x08000000, 0x00000100,
114
-	0x00040400, 0x00000020, 0x0c000000, 0x00100100,
115
-	0x00400400, 0x00000028, 0x08000800, 0x40000100,
116
-	0x00440400, 0x00000028, 0x0c000800, 0x40100100,
117
-	0x80000000, 0x00000010, 0x00000000, 0x00800000,
118
-	0x80040000, 0x00000010, 0x04000000, 0x00900000,
119
-	0x80400000, 0x00000018, 0x00000800, 0x40800000,
120
-	0x80440000, 0x00000018, 0x04000800, 0x40900000,
121
-	0x80000400, 0x00000030, 0x08000000, 0x00800100,
122
-	0x80040400, 0x00000030, 0x0c000000, 0x00900100,
123
-	0x80400400, 0x00000038, 0x08000800, 0x40800100,
124
-	0x80440400, 0x00000038, 0x0c000800, 0x40900100,
125
-	0x10000000, 0x00000000, 0x00200000, 0x00001000,
126
-	0x10040000, 0x00000000, 0x04200000, 0x00101000,
127
-	0x10400000, 0x00000008, 0x00200800, 0x40001000,
128
-	0x10440000, 0x00000008, 0x04200800, 0x40101000,
129
-	0x10000400, 0x00000020, 0x08200000, 0x00001100,
130
-	0x10040400, 0x00000020, 0x0c200000, 0x00101100,
131
-	0x10400400, 0x00000028, 0x08200800, 0x40001100,
132
-	0x10440400, 0x00000028, 0x0c200800, 0x40101100,
133
-	0x90000000, 0x00000010, 0x00200000, 0x00801000,
134
-	0x90040000, 0x00000010, 0x04200000, 0x00901000,
135
-	0x90400000, 0x00000018, 0x00200800, 0x40801000,
136
-	0x90440000, 0x00000018, 0x04200800, 0x40901000,
137
-	0x90000400, 0x00000030, 0x08200000, 0x00801100,
138
-	0x90040400, 0x00000030, 0x0c200000, 0x00901100,
139
-	0x90400400, 0x00000038, 0x08200800, 0x40801100,
140
-	0x90440400, 0x00000038, 0x0c200800, 0x40901100,
141
-	0x00000200, 0x00080000, 0x00000000, 0x00000004,
142
-	0x00040200, 0x00080000, 0x04000000, 0x00100004,
143
-	0x00400200, 0x00080008, 0x00000800, 0x40000004,
144
-	0x00440200, 0x00080008, 0x04000800, 0x40100004,
145
-	0x00000600, 0x00080020, 0x08000000, 0x00000104,
146
-	0x00040600, 0x00080020, 0x0c000000, 0x00100104,
147
-	0x00400600, 0x00080028, 0x08000800, 0x40000104,
148
-	0x00440600, 0x00080028, 0x0c000800, 0x40100104,
149
-	0x80000200, 0x00080010, 0x00000000, 0x00800004,
150
-	0x80040200, 0x00080010, 0x04000000, 0x00900004,
151
-	0x80400200, 0x00080018, 0x00000800, 0x40800004,
152
-	0x80440200, 0x00080018, 0x04000800, 0x40900004,
153
-	0x80000600, 0x00080030, 0x08000000, 0x00800104,
154
-	0x80040600, 0x00080030, 0x0c000000, 0x00900104,
155
-	0x80400600, 0x00080038, 0x08000800, 0x40800104,
156
-	0x80440600, 0x00080038, 0x0c000800, 0x40900104,
157
-	0x10000200, 0x00080000, 0x00200000, 0x00001004,
158
-	0x10040200, 0x00080000, 0x04200000, 0x00101004,
159
-	0x10400200, 0x00080008, 0x00200800, 0x40001004,
160
-	0x10440200, 0x00080008, 0x04200800, 0x40101004,
161
-	0x10000600, 0x00080020, 0x08200000, 0x00001104,
162
-	0x10040600, 0x00080020, 0x0c200000, 0x00101104,
163
-	0x10400600, 0x00080028, 0x08200800, 0x40001104,
164
-	0x10440600, 0x00080028, 0x0c200800, 0x40101104,
165
-	0x90000200, 0x00080010, 0x00200000, 0x00801004,
166
-	0x90040200, 0x00080010, 0x04200000, 0x00901004,
167
-	0x90400200, 0x00080018, 0x00200800, 0x40801004,
168
-	0x90440200, 0x00080018, 0x04200800, 0x40901004,
169
-	0x90000600, 0x00080030, 0x08200000, 0x00801104,
170
-	0x90040600, 0x00080030, 0x0c200000, 0x00901104,
171
-	0x90400600, 0x00080038, 0x08200800, 0x40801104,
172
-	0x90440600, 0x00080038, 0x0c200800, 0x40901104,
173
-	0x00000002, 0x00002000, 0x20000000, 0x00000001,
174
-	0x00040002, 0x00002000, 0x24000000, 0x00100001,
175
-	0x00400002, 0x00002008, 0x20000800, 0x40000001,
176
-	0x00440002, 0x00002008, 0x24000800, 0x40100001,
177
-	0x00000402, 0x00002020, 0x28000000, 0x00000101,
178
-	0x00040402, 0x00002020, 0x2c000000, 0x00100101,
179
-	0x00400402, 0x00002028, 0x28000800, 0x40000101,
180
-	0x00440402, 0x00002028, 0x2c000800, 0x40100101,
181
-	0x80000002, 0x00002010, 0x20000000, 0x00800001,
182
-	0x80040002, 0x00002010, 0x24000000, 0x00900001,
183
-	0x80400002, 0x00002018, 0x20000800, 0x40800001,
184
-	0x80440002, 0x00002018, 0x24000800, 0x40900001,
185
-	0x80000402, 0x00002030, 0x28000000, 0x00800101,
186
-	0x80040402, 0x00002030, 0x2c000000, 0x00900101,
187
-	0x80400402, 0x00002038, 0x28000800, 0x40800101,
188
-	0x80440402, 0x00002038, 0x2c000800, 0x40900101,
189
-	0x10000002, 0x00002000, 0x20200000, 0x00001001,
190
-	0x10040002, 0x00002000, 0x24200000, 0x00101001,
191
-	0x10400002, 0x00002008, 0x20200800, 0x40001001,
192
-	0x10440002, 0x00002008, 0x24200800, 0x40101001,
193
-	0x10000402, 0x00002020, 0x28200000, 0x00001101,
194
-	0x10040402, 0x00002020, 0x2c200000, 0x00101101,
195
-	0x10400402, 0x00002028, 0x28200800, 0x40001101,
196
-	0x10440402, 0x00002028, 0x2c200800, 0x40101101,
197
-	0x90000002, 0x00002010, 0x20200000, 0x00801001,
198
-	0x90040002, 0x00002010, 0x24200000, 0x00901001,
199
-	0x90400002, 0x00002018, 0x20200800, 0x40801001,
200
-	0x90440002, 0x00002018, 0x24200800, 0x40901001,
201
-	0x90000402, 0x00002030, 0x28200000, 0x00801101,
202
-	0x90040402, 0x00002030, 0x2c200000, 0x00901101,
203
-	0x90400402, 0x00002038, 0x28200800, 0x40801101,
204
-	0x90440402, 0x00002038, 0x2c200800, 0x40901101,
205
-	0x00000202, 0x00082000, 0x20000000, 0x00000005,
206
-	0x00040202, 0x00082000, 0x24000000, 0x00100005,
207
-	0x00400202, 0x00082008, 0x20000800, 0x40000005,
208
-	0x00440202, 0x00082008, 0x24000800, 0x40100005,
209
-	0x00000602, 0x00082020, 0x28000000, 0x00000105,
210
-	0x00040602, 0x00082020, 0x2c000000, 0x00100105,
211
-	0x00400602, 0x00082028, 0x28000800, 0x40000105,
212
-	0x00440602, 0x00082028, 0x2c000800, 0x40100105,
213
-	0x80000202, 0x00082010, 0x20000000, 0x00800005,
214
-	0x80040202, 0x00082010, 0x24000000, 0x00900005,
215
-	0x80400202, 0x00082018, 0x20000800, 0x40800005,
216
-	0x80440202, 0x00082018, 0x24000800, 0x40900005,
217
-	0x80000602, 0x00082030, 0x28000000, 0x00800105,
218
-	0x80040602, 0x00082030, 0x2c000000, 0x00900105,
219
-	0x80400602, 0x00082038, 0x28000800, 0x40800105,
220
-	0x80440602, 0x00082038, 0x2c000800, 0x40900105,
221
-	0x10000202, 0x00082000, 0x20200000, 0x00001005,
222
-	0x10040202, 0x00082000, 0x24200000, 0x00101005,
223
-	0x10400202, 0x00082008, 0x20200800, 0x40001005,
224
-	0x10440202, 0x00082008, 0x24200800, 0x40101005,
225
-	0x10000602, 0x00082020, 0x28200000, 0x00001105,
226
-	0x10040602, 0x00082020, 0x2c200000, 0x00101105,
227
-	0x10400602, 0x00082028, 0x28200800, 0x40001105,
228
-	0x10440602, 0x00082028, 0x2c200800, 0x40101105,
229
-	0x90000202, 0x00082010, 0x20200000, 0x00801005,
230
-	0x90040202, 0x00082010, 0x24200000, 0x00901005,
231
-	0x90400202, 0x00082018, 0x20200800, 0x40801005,
232
-	0x90440202, 0x00082018, 0x24200800, 0x40901005,
233
-	0x90000602, 0x00082030, 0x28200000, 0x00801105,
234
-	0x90040602, 0x00082030, 0x2c200000, 0x00901105,
235
-	0x90400602, 0x00082038, 0x28200800, 0x40801105,
236
-	0x90440602, 0x00082038, 0x2c200800, 0x40901105,
237
-
238
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
239
-	0x00000000, 0x00000008, 0x00080000, 0x10000000,
240
-	0x02000000, 0x00000000, 0x00000080, 0x00001000,
241
-	0x02000000, 0x00000008, 0x00080080, 0x10001000,
242
-	0x00004000, 0x00000000, 0x00000040, 0x00040000,
243
-	0x00004000, 0x00000008, 0x00080040, 0x10040000,
244
-	0x02004000, 0x00000000, 0x000000c0, 0x00041000,
245
-	0x02004000, 0x00000008, 0x000800c0, 0x10041000,
246
-	0x00020000, 0x00008000, 0x08000000, 0x00200000,
247
-	0x00020000, 0x00008008, 0x08080000, 0x10200000,
248
-	0x02020000, 0x00008000, 0x08000080, 0x00201000,
249
-	0x02020000, 0x00008008, 0x08080080, 0x10201000,
250
-	0x00024000, 0x00008000, 0x08000040, 0x00240000,
251
-	0x00024000, 0x00008008, 0x08080040, 0x10240000,
252
-	0x02024000, 0x00008000, 0x080000c0, 0x00241000,
253
-	0x02024000, 0x00008008, 0x080800c0, 0x10241000,
254
-	0x00000000, 0x01000000, 0x00002000, 0x00000020,
255
-	0x00000000, 0x01000008, 0x00082000, 0x10000020,
256
-	0x02000000, 0x01000000, 0x00002080, 0x00001020,
257
-	0x02000000, 0x01000008, 0x00082080, 0x10001020,
258
-	0x00004000, 0x01000000, 0x00002040, 0x00040020,
259
-	0x00004000, 0x01000008, 0x00082040, 0x10040020,
260
-	0x02004000, 0x01000000, 0x000020c0, 0x00041020,
261
-	0x02004000, 0x01000008, 0x000820c0, 0x10041020,
262
-	0x00020000, 0x01008000, 0x08002000, 0x00200020,
263
-	0x00020000, 0x01008008, 0x08082000, 0x10200020,
264
-	0x02020000, 0x01008000, 0x08002080, 0x00201020,
265
-	0x02020000, 0x01008008, 0x08082080, 0x10201020,
266
-	0x00024000, 0x01008000, 0x08002040, 0x00240020,
267
-	0x00024000, 0x01008008, 0x08082040, 0x10240020,
268
-	0x02024000, 0x01008000, 0x080020c0, 0x00241020,
269
-	0x02024000, 0x01008008, 0x080820c0, 0x10241020,
270
-	0x00000400, 0x04000000, 0x00100000, 0x00000004,
271
-	0x00000400, 0x04000008, 0x00180000, 0x10000004,
272
-	0x02000400, 0x04000000, 0x00100080, 0x00001004,
273
-	0x02000400, 0x04000008, 0x00180080, 0x10001004,
274
-	0x00004400, 0x04000000, 0x00100040, 0x00040004,
275
-	0x00004400, 0x04000008, 0x00180040, 0x10040004,
276
-	0x02004400, 0x04000000, 0x001000c0, 0x00041004,
277
-	0x02004400, 0x04000008, 0x001800c0, 0x10041004,
278
-	0x00020400, 0x04008000, 0x08100000, 0x00200004,
279
-	0x00020400, 0x04008008, 0x08180000, 0x10200004,
280
-	0x02020400, 0x04008000, 0x08100080, 0x00201004,
281
-	0x02020400, 0x04008008, 0x08180080, 0x10201004,
282
-	0x00024400, 0x04008000, 0x08100040, 0x00240004,
283
-	0x00024400, 0x04008008, 0x08180040, 0x10240004,
284
-	0x02024400, 0x04008000, 0x081000c0, 0x00241004,
285
-	0x02024400, 0x04008008, 0x081800c0, 0x10241004,
286
-	0x00000400, 0x05000000, 0x00102000, 0x00000024,
287
-	0x00000400, 0x05000008, 0x00182000, 0x10000024,
288
-	0x02000400, 0x05000000, 0x00102080, 0x00001024,
289
-	0x02000400, 0x05000008, 0x00182080, 0x10001024,
290
-	0x00004400, 0x05000000, 0x00102040, 0x00040024,
291
-	0x00004400, 0x05000008, 0x00182040, 0x10040024,
292
-	0x02004400, 0x05000000, 0x001020c0, 0x00041024,
293
-	0x02004400, 0x05000008, 0x001820c0, 0x10041024,
294
-	0x00020400, 0x05008000, 0x08102000, 0x00200024,
295
-	0x00020400, 0x05008008, 0x08182000, 0x10200024,
296
-	0x02020400, 0x05008000, 0x08102080, 0x00201024,
297
-	0x02020400, 0x05008008, 0x08182080, 0x10201024,
298
-	0x00024400, 0x05008000, 0x08102040, 0x00240024,
299
-	0x00024400, 0x05008008, 0x08182040, 0x10240024,
300
-	0x02024400, 0x05008000, 0x081020c0, 0x00241024,
301
-	0x02024400, 0x05008008, 0x081820c0, 0x10241024,
302
-	0x00000800, 0x00010000, 0x20000000, 0x00000010,
303
-	0x00000800, 0x00010008, 0x20080000, 0x10000010,
304
-	0x02000800, 0x00010000, 0x20000080, 0x00001010,
305
-	0x02000800, 0x00010008, 0x20080080, 0x10001010,
306
-	0x00004800, 0x00010000, 0x20000040, 0x00040010,
307
-	0x00004800, 0x00010008, 0x20080040, 0x10040010,
308
-	0x02004800, 0x00010000, 0x200000c0, 0x00041010,
309
-	0x02004800, 0x00010008, 0x200800c0, 0x10041010,
310
-	0x00020800, 0x00018000, 0x28000000, 0x00200010,
311
-	0x00020800, 0x00018008, 0x28080000, 0x10200010,
312
-	0x02020800, 0x00018000, 0x28000080, 0x00201010,
313
-	0x02020800, 0x00018008, 0x28080080, 0x10201010,
314
-	0x00024800, 0x00018000, 0x28000040, 0x00240010,
315
-	0x00024800, 0x00018008, 0x28080040, 0x10240010,
316
-	0x02024800, 0x00018000, 0x280000c0, 0x00241010,
317
-	0x02024800, 0x00018008, 0x280800c0, 0x10241010,
318
-	0x00000800, 0x01010000, 0x20002000, 0x00000030,
319
-	0x00000800, 0x01010008, 0x20082000, 0x10000030,
320
-	0x02000800, 0x01010000, 0x20002080, 0x00001030,
321
-	0x02000800, 0x01010008, 0x20082080, 0x10001030,
322
-	0x00004800, 0x01010000, 0x20002040, 0x00040030,
323
-	0x00004800, 0x01010008, 0x20082040, 0x10040030,
324
-	0x02004800, 0x01010000, 0x200020c0, 0x00041030,
325
-	0x02004800, 0x01010008, 0x200820c0, 0x10041030,
326
-	0x00020800, 0x01018000, 0x28002000, 0x00200030,
327
-	0x00020800, 0x01018008, 0x28082000, 0x10200030,
328
-	0x02020800, 0x01018000, 0x28002080, 0x00201030,
329
-	0x02020800, 0x01018008, 0x28082080, 0x10201030,
330
-	0x00024800, 0x01018000, 0x28002040, 0x00240030,
331
-	0x00024800, 0x01018008, 0x28082040, 0x10240030,
332
-	0x02024800, 0x01018000, 0x280020c0, 0x00241030,
333
-	0x02024800, 0x01018008, 0x280820c0, 0x10241030,
334
-	0x00000c00, 0x04010000, 0x20100000, 0x00000014,
335
-	0x00000c00, 0x04010008, 0x20180000, 0x10000014,
336
-	0x02000c00, 0x04010000, 0x20100080, 0x00001014,
337
-	0x02000c00, 0x04010008, 0x20180080, 0x10001014,
338
-	0x00004c00, 0x04010000, 0x20100040, 0x00040014,
339
-	0x00004c00, 0x04010008, 0x20180040, 0x10040014,
340
-	0x02004c00, 0x04010000, 0x201000c0, 0x00041014,
341
-	0x02004c00, 0x04010008, 0x201800c0, 0x10041014,
342
-	0x00020c00, 0x04018000, 0x28100000, 0x00200014,
343
-	0x00020c00, 0x04018008, 0x28180000, 0x10200014,
344
-	0x02020c00, 0x04018000, 0x28100080, 0x00201014,
345
-	0x02020c00, 0x04018008, 0x28180080, 0x10201014,
346
-	0x00024c00, 0x04018000, 0x28100040, 0x00240014,
347
-	0x00024c00, 0x04018008, 0x28180040, 0x10240014,
348
-	0x02024c00, 0x04018000, 0x281000c0, 0x00241014,
349
-	0x02024c00, 0x04018008, 0x281800c0, 0x10241014,
350
-	0x00000c00, 0x05010000, 0x20102000, 0x00000034,
351
-	0x00000c00, 0x05010008, 0x20182000, 0x10000034,
352
-	0x02000c00, 0x05010000, 0x20102080, 0x00001034,
353
-	0x02000c00, 0x05010008, 0x20182080, 0x10001034,
354
-	0x00004c00, 0x05010000, 0x20102040, 0x00040034,
355
-	0x00004c00, 0x05010008, 0x20182040, 0x10040034,
356
-	0x02004c00, 0x05010000, 0x201020c0, 0x00041034,
357
-	0x02004c00, 0x05010008, 0x201820c0, 0x10041034,
358
-	0x00020c00, 0x05018000, 0x28102000, 0x00200034,
359
-	0x00020c00, 0x05018008, 0x28182000, 0x10200034,
360
-	0x02020c00, 0x05018000, 0x28102080, 0x00201034,
361
-	0x02020c00, 0x05018008, 0x28182080, 0x10201034,
362
-	0x00024c00, 0x05018000, 0x28102040, 0x00240034,
363
-	0x00024c00, 0x05018008, 0x28182040, 0x10240034,
364
-	0x02024c00, 0x05018000, 0x281020c0, 0x00241034,
365
-	0x02024c00, 0x05018008, 0x281820c0, 0x10241034
366
-};
367
-
368
-/* S-box lookup tables */
369
-
370
-static const u32 S1[64] = {
371
-	0x01010400, 0x00000000, 0x00010000, 0x01010404,
372
-	0x01010004, 0x00010404, 0x00000004, 0x00010000,
373
-	0x00000400, 0x01010400, 0x01010404, 0x00000400,
374
-	0x01000404, 0x01010004, 0x01000000, 0x00000004,
375
-	0x00000404, 0x01000400, 0x01000400, 0x00010400,
376
-	0x00010400, 0x01010000, 0x01010000, 0x01000404,
377
-	0x00010004, 0x01000004, 0x01000004, 0x00010004,
378
-	0x00000000, 0x00000404, 0x00010404, 0x01000000,
379
-	0x00010000, 0x01010404, 0x00000004, 0x01010000,
380
-	0x01010400, 0x01000000, 0x01000000, 0x00000400,
381
-	0x01010004, 0x00010000, 0x00010400, 0x01000004,
382
-	0x00000400, 0x00000004, 0x01000404, 0x00010404,
383
-	0x01010404, 0x00010004, 0x01010000, 0x01000404,
384
-	0x01000004, 0x00000404, 0x00010404, 0x01010400,
385
-	0x00000404, 0x01000400, 0x01000400, 0x00000000,
386
-	0x00010004, 0x00010400, 0x00000000, 0x01010004
387
-};
388
-
389
-static const u32 S2[64] = {
390
-	0x80108020, 0x80008000, 0x00008000, 0x00108020,
391
-	0x00100000, 0x00000020, 0x80100020, 0x80008020,
392
-	0x80000020, 0x80108020, 0x80108000, 0x80000000,
393
-	0x80008000, 0x00100000, 0x00000020, 0x80100020,
394
-	0x00108000, 0x00100020, 0x80008020, 0x00000000,
395
-	0x80000000, 0x00008000, 0x00108020, 0x80100000,
396
-	0x00100020, 0x80000020, 0x00000000, 0x00108000,
397
-	0x00008020, 0x80108000, 0x80100000, 0x00008020,
398
-	0x00000000, 0x00108020, 0x80100020, 0x00100000,
399
-	0x80008020, 0x80100000, 0x80108000, 0x00008000,
400
-	0x80100000, 0x80008000, 0x00000020, 0x80108020,
401
-	0x00108020, 0x00000020, 0x00008000, 0x80000000,
402
-	0x00008020, 0x80108000, 0x00100000, 0x80000020,
403
-	0x00100020, 0x80008020, 0x80000020, 0x00100020,
404
-	0x00108000, 0x00000000, 0x80008000, 0x00008020,
405
-	0x80000000, 0x80100020, 0x80108020, 0x00108000
406
-};
407
-
408
-static const u32 S3[64] = {
409
-	0x00000208, 0x08020200, 0x00000000, 0x08020008,
410
-	0x08000200, 0x00000000, 0x00020208, 0x08000200,
411
-	0x00020008, 0x08000008, 0x08000008, 0x00020000,
412
-	0x08020208, 0x00020008, 0x08020000, 0x00000208,
413
-	0x08000000, 0x00000008, 0x08020200, 0x00000200,
414
-	0x00020200, 0x08020000, 0x08020008, 0x00020208,
415
-	0x08000208, 0x00020200, 0x00020000, 0x08000208,
416
-	0x00000008, 0x08020208, 0x00000200, 0x08000000,
417
-	0x08020200, 0x08000000, 0x00020008, 0x00000208,
418
-	0x00020000, 0x08020200, 0x08000200, 0x00000000,
419
-	0x00000200, 0x00020008, 0x08020208, 0x08000200,
420
-	0x08000008, 0x00000200, 0x00000000, 0x08020008,
421
-	0x08000208, 0x00020000, 0x08000000, 0x08020208,
422
-	0x00000008, 0x00020208, 0x00020200, 0x08000008,
423
-	0x08020000, 0x08000208, 0x00000208, 0x08020000,
424
-	0x00020208, 0x00000008, 0x08020008, 0x00020200
425
-};
426
-
427
-static const u32 S4[64] = {
428
-	0x00802001, 0x00002081, 0x00002081, 0x00000080,
429
-	0x00802080, 0x00800081, 0x00800001, 0x00002001,
430
-	0x00000000, 0x00802000, 0x00802000, 0x00802081,
431
-	0x00000081, 0x00000000, 0x00800080, 0x00800001,
432
-	0x00000001, 0x00002000, 0x00800000, 0x00802001,
433
-	0x00000080, 0x00800000, 0x00002001, 0x00002080,
434
-	0x00800081, 0x00000001, 0x00002080, 0x00800080,
435
-	0x00002000, 0x00802080, 0x00802081, 0x00000081,
436
-	0x00800080, 0x00800001, 0x00802000, 0x00802081,
437
-	0x00000081, 0x00000000, 0x00000000, 0x00802000,
438
-	0x00002080, 0x00800080, 0x00800081, 0x00000001,
439
-	0x00802001, 0x00002081, 0x00002081, 0x00000080,
440
-	0x00802081, 0x00000081, 0x00000001, 0x00002000,
441
-	0x00800001, 0x00002001, 0x00802080, 0x00800081,
442
-	0x00002001, 0x00002080, 0x00800000, 0x00802001,
443
-	0x00000080, 0x00800000, 0x00002000, 0x00802080
444
-};
445
-
446
-static const u32 S5[64] = {
447
-	0x00000100, 0x02080100, 0x02080000, 0x42000100,
448
-	0x00080000, 0x00000100, 0x40000000, 0x02080000,
449
-	0x40080100, 0x00080000, 0x02000100, 0x40080100,
450
-	0x42000100, 0x42080000, 0x00080100, 0x40000000,
451
-	0x02000000, 0x40080000, 0x40080000, 0x00000000,
452
-	0x40000100, 0x42080100, 0x42080100, 0x02000100,
453
-	0x42080000, 0x40000100, 0x00000000, 0x42000000,
454
-	0x02080100, 0x02000000, 0x42000000, 0x00080100,
455
-	0x00080000, 0x42000100, 0x00000100, 0x02000000,
456
-	0x40000000, 0x02080000, 0x42000100, 0x40080100,
457
-	0x02000100, 0x40000000, 0x42080000, 0x02080100,
458
-	0x40080100, 0x00000100, 0x02000000, 0x42080000,
459
-	0x42080100, 0x00080100, 0x42000000, 0x42080100,
460
-	0x02080000, 0x00000000, 0x40080000, 0x42000000,
461
-	0x00080100, 0x02000100, 0x40000100, 0x00080000,
462
-	0x00000000, 0x40080000, 0x02080100, 0x40000100
463
-};
464
-
465
-static const u32 S6[64] = {
466
-	0x20000010, 0x20400000, 0x00004000, 0x20404010,
467
-	0x20400000, 0x00000010, 0x20404010, 0x00400000,
468
-	0x20004000, 0x00404010, 0x00400000, 0x20000010,
469
-	0x00400010, 0x20004000, 0x20000000, 0x00004010,
470
-	0x00000000, 0x00400010, 0x20004010, 0x00004000,
471
-	0x00404000, 0x20004010, 0x00000010, 0x20400010,
472
-	0x20400010, 0x00000000, 0x00404010, 0x20404000,
473
-	0x00004010, 0x00404000, 0x20404000, 0x20000000,
474
-	0x20004000, 0x00000010, 0x20400010, 0x00404000,
475
-	0x20404010, 0x00400000, 0x00004010, 0x20000010,
476
-	0x00400000, 0x20004000, 0x20000000, 0x00004010,
477
-	0x20000010, 0x20404010, 0x00404000, 0x20400000,
478
-	0x00404010, 0x20404000, 0x00000000, 0x20400010,
479
-	0x00000010, 0x00004000, 0x20400000, 0x00404010,
480
-	0x00004000, 0x00400010, 0x20004010, 0x00000000,
481
-	0x20404000, 0x20000000, 0x00400010, 0x20004010
482
-};
483
-
484
-static const u32 S7[64] = {
485
-	0x00200000, 0x04200002, 0x04000802, 0x00000000,
486
-	0x00000800, 0x04000802, 0x00200802, 0x04200800,
487
-	0x04200802, 0x00200000, 0x00000000, 0x04000002,
488
-	0x00000002, 0x04000000, 0x04200002, 0x00000802,
489
-	0x04000800, 0x00200802, 0x00200002, 0x04000800,
490
-	0x04000002, 0x04200000, 0x04200800, 0x00200002,
491
-	0x04200000, 0x00000800, 0x00000802, 0x04200802,
492
-	0x00200800, 0x00000002, 0x04000000, 0x00200800,
493
-	0x04000000, 0x00200800, 0x00200000, 0x04000802,
494
-	0x04000802, 0x04200002, 0x04200002, 0x00000002,
495
-	0x00200002, 0x04000000, 0x04000800, 0x00200000,
496
-	0x04200800, 0x00000802, 0x00200802, 0x04200800,
497
-	0x00000802, 0x04000002, 0x04200802, 0x04200000,
498
-	0x00200800, 0x00000000, 0x00000002, 0x04200802,
499
-	0x00000000, 0x00200802, 0x04200000, 0x00000800,
500
-	0x04000002, 0x04000800, 0x00000800, 0x00200002
501
-};
502
-
503
-static const u32 S8[64] = {
504
-	0x10001040, 0x00001000, 0x00040000, 0x10041040,
505
-	0x10000000, 0x10001040, 0x00000040, 0x10000000,
506
-	0x00040040, 0x10040000, 0x10041040, 0x00041000,
507
-	0x10041000, 0x00041040, 0x00001000, 0x00000040,
508
-	0x10040000, 0x10000040, 0x10001000, 0x00001040,
509
-	0x00041000, 0x00040040, 0x10040040, 0x10041000,
510
-	0x00001040, 0x00000000, 0x00000000, 0x10040040,
511
-	0x10000040, 0x10001000, 0x00041040, 0x00040000,
512
-	0x00041040, 0x00040000, 0x10041000, 0x00001000,
513
-	0x00000040, 0x10040040, 0x00001000, 0x00041040,
514
-	0x10001000, 0x00000040, 0x10000040, 0x10040000,
515
-	0x10040040, 0x10000000, 0x00040000, 0x10001040,
516
-	0x00000000, 0x10041040, 0x00040040, 0x10000040,
517
-	0x10040000, 0x10001000, 0x10001040, 0x00000000,
518
-	0x10041040, 0x00041000, 0x00041000, 0x00001040,
519
-	0x00001040, 0x00040040, 0x10000000, 0x10041000
520
-};
521
-
522
-/* Encryption components: IP, FP, and round function */
523
-
524
-#define IP(L, R, T)		\
525
-	ROL(R, 4);		\
526
-	T  = L;			\
527
-	L ^= R;			\
528
-	L &= 0xf0f0f0f0;	\
529
-	R ^= L;			\
530
-	L ^= T;			\
531
-	ROL(R, 12);		\
532
-	T  = L;			\
533
-	L ^= R;			\
534
-	L &= 0xffff0000;	\
535
-	R ^= L;			\
536
-	L ^= T;			\
537
-	ROR(R, 14);		\
538
-	T  = L;			\
539
-	L ^= R;			\
540
-	L &= 0xcccccccc;	\
541
-	R ^= L;			\
542
-	L ^= T;			\
543
-	ROL(R, 6);		\
544
-	T  = L;			\
545
-	L ^= R;			\
546
-	L &= 0xff00ff00;	\
547
-	R ^= L;			\
548
-	L ^= T;			\
549
-	ROR(R, 7);		\
550
-	T  = L;			\
551
-	L ^= R;			\
552
-	L &= 0xaaaaaaaa;	\
553
-	R ^= L;			\
554
-	L ^= T;			\
555
-	ROL(L, 1);
556
-
557
-#define FP(L, R, T)		\
558
-	ROR(L, 1);		\
559
-	T  = L;			\
560
-	L ^= R;			\
561
-	L &= 0xaaaaaaaa;	\
562
-	R ^= L;			\
563
-	L ^= T;			\
564
-	ROL(R, 7);		\
565
-	T  = L;			\
566
-	L ^= R;			\
567
-	L &= 0xff00ff00;	\
568
-	R ^= L;			\
569
-	L ^= T;			\
570
-	ROR(R, 6);		\
571
-	T  = L;			\
572
-	L ^= R;			\
573
-	L &= 0xcccccccc;	\
574
-	R ^= L;			\
575
-	L ^= T;			\
576
-	ROL(R, 14);		\
577
-	T  = L;			\
578
-	L ^= R;			\
579
-	L &= 0xffff0000;	\
580
-	R ^= L;			\
581
-	L ^= T;			\
582
-	ROR(R, 12);		\
583
-	T  = L;			\
584
-	L ^= R;			\
585
-	L &= 0xf0f0f0f0;	\
586
-	R ^= L;			\
587
-	L ^= T;			\
588
-	ROR(R, 4);
589
-
590
-#define ROUND(L, R, A, B, K, d)					\
591
-	B = K[0];			A = K[1];	K += d;	\
592
-	B ^= R;				A ^= R;			\
593
-	B &= 0x3f3f3f3f;		ROR(A, 4);		\
594
-	L ^= S8[0xff & B];		A &= 0x3f3f3f3f;	\
595
-	L ^= S6[0xff & (B >> 8)];	B >>= 16;		\
596
-	L ^= S7[0xff & A];					\
597
-	L ^= S5[0xff & (A >> 8)];	A >>= 16;		\
598
-	L ^= S4[0xff & B];					\
599
-	L ^= S2[0xff & (B >> 8)];				\
600
-	L ^= S3[0xff & A];					\
601
-	L ^= S1[0xff & (A >> 8)];
602
-
603
-/*
604
- * PC2 lookup tables are organized as 2 consecutive sets of 4 interleaved
605
- * tables of 128 elements.  One set is for C_i and the other for D_i, while
606
- * the 4 interleaved tables correspond to four 7-bit subsets of C_i or D_i.
607
- *
608
- * After PC1 each of the variables a,b,c,d contains a 7 bit subset of C_i
609
- * or D_i in bits 7-1 (bit 0 being the least significant).
610
- */
611
-
612
-#define T1(x) pt[2 * (x) + 0]
613
-#define T2(x) pt[2 * (x) + 1]
614
-#define T3(x) pt[2 * (x) + 2]
615
-#define T4(x) pt[2 * (x) + 3]
616
-
617
-#define DES_PC2(a, b, c, d) (T4(d) | T3(c) | T2(b) | T1(a))
618
-
619
-/*
620
- * Encryption key expansion
621
- *
622
- * RFC2451: Weak key checks SHOULD be performed.
623
- *
624
- * FIPS 74:
625
- *
626
- *   Keys having duals are keys which produce all zeros, all ones, or
627
- *   alternating zero-one patterns in the C and D registers after Permuted
628
- *   Choice 1 has operated on the key.
629
- *
630
- */
631
-unsigned long des_ekey(u32 *pe, const u8 *k)
632
-{
633
-	/* K&R: long is at least 32 bits */
634
-	unsigned long a, b, c, d, w;
635
-	const u32 *pt = pc2;
636
-
637
-	d = k[4]; d &= 0x0e; d <<= 4; d |= k[0] & 0x1e; d = pc1[d];
638
-	c = k[5]; c &= 0x0e; c <<= 4; c |= k[1] & 0x1e; c = pc1[c];
639
-	b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
640
-	a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
641
-
642
-	pe[15 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d];
643
-	pe[14 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
644
-	pe[13 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
645
-	pe[12 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
646
-	pe[11 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
647
-	pe[10 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
648
-	pe[ 9 * 2 + 0] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
649
-	pe[ 8 * 2 + 0] = DES_PC2(d, a, b, c); c = rs[c];
650
-	pe[ 7 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
651
-	pe[ 6 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
652
-	pe[ 5 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
653
-	pe[ 4 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
654
-	pe[ 3 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
655
-	pe[ 2 * 2 + 0] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
656
-	pe[ 1 * 2 + 0] = DES_PC2(c, d, a, b); b = rs[b];
657
-	pe[ 0 * 2 + 0] = DES_PC2(b, c, d, a);
658
-
659
-	/* Check if first half is weak */
660
-	w  = (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
661
-
662
-	/* Skip to next table set */
663
-	pt += 512;
664
-
665
-	d = k[0]; d &= 0xe0; d >>= 4; d |= k[4] & 0xf0; d = pc1[d + 1];
666
-	c = k[1]; c &= 0xe0; c >>= 4; c |= k[5] & 0xf0; c = pc1[c + 1];
667
-	b = k[2]; b &= 0xe0; b >>= 4; b |= k[6] & 0xf0; b = pc1[b + 1];
668
-	a = k[3]; a &= 0xe0; a >>= 4; a |= k[7] & 0xf0; a = pc1[a + 1];
669
-
670
-	/* Check if second half is weak */
671
-	w |= (a ^ c) | (b ^ d) | (rs[a] ^ c) | (b ^ rs[d]);
672
-
673
-	pe[15 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d];
674
-	pe[14 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
675
-	pe[13 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
676
-	pe[12 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
677
-	pe[11 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
678
-	pe[10 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
679
-	pe[ 9 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
680
-	pe[ 8 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c];
681
-	pe[ 7 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
682
-	pe[ 6 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
683
-	pe[ 5 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
684
-	pe[ 4 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
685
-	pe[ 3 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
686
-	pe[ 2 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
687
-	pe[ 1 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b];
688
-	pe[ 0 * 2 + 1] = DES_PC2(b, c, d, a);
689
-
690
-	/* Fixup: 2413 5768 -> 1357 2468 */
691
-	for (d = 0; d < 16; ++d) {
692
-		a = pe[2 * d];
693
-		b = pe[2 * d + 1];
694
-		c = a ^ b;
695
-		c &= 0xffff0000;
696
-		a ^= c;
697
-		b ^= c;
698
-		ROL(b, 18);
699
-		pe[2 * d] = a;
700
-		pe[2 * d + 1] = b;
701
-	}
702
-
703
-	/* Zero if weak key */
704
-	return w;
705
-}
706
-EXPORT_SYMBOL_GPL(des_ekey);
707
-
708
-/*
709
- * Decryption key expansion
710
- *
711
- * No weak key checking is performed, as this is only used by triple DES
712
- *
713
- */
714
-static void dkey(u32 *pe, const u8 *k)
715
-{
716
-	/* K&R: long is at least 32 bits */
717
-	unsigned long a, b, c, d;
718
-	const u32 *pt = pc2;
719
-
720
-	d = k[4]; d &= 0x0e; d <<= 4; d |= k[0] & 0x1e; d = pc1[d];
721
-	c = k[5]; c &= 0x0e; c <<= 4; c |= k[1] & 0x1e; c = pc1[c];
722
-	b = k[6]; b &= 0x0e; b <<= 4; b |= k[2] & 0x1e; b = pc1[b];
723
-	a = k[7]; a &= 0x0e; a <<= 4; a |= k[3] & 0x1e; a = pc1[a];
724
-
725
-	pe[ 0 * 2] = DES_PC2(a, b, c, d); d = rs[d];
726
-	pe[ 1 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
727
-	pe[ 2 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
728
-	pe[ 3 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
729
-	pe[ 4 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
730
-	pe[ 5 * 2] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
731
-	pe[ 6 * 2] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
732
-	pe[ 7 * 2] = DES_PC2(d, a, b, c); c = rs[c];
733
-	pe[ 8 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
734
-	pe[ 9 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
735
-	pe[10 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
736
-	pe[11 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
737
-	pe[12 * 2] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
738
-	pe[13 * 2] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
739
-	pe[14 * 2] = DES_PC2(c, d, a, b); b = rs[b];
740
-	pe[15 * 2] = DES_PC2(b, c, d, a);
741
-
742
-	/* Skip to next table set */
743
-	pt += 512;
744
-
745
-	d = k[0]; d &= 0xe0; d >>= 4; d |= k[4] & 0xf0; d = pc1[d + 1];
746
-	c = k[1]; c &= 0xe0; c >>= 4; c |= k[5] & 0xf0; c = pc1[c + 1];
747
-	b = k[2]; b &= 0xe0; b >>= 4; b |= k[6] & 0xf0; b = pc1[b + 1];
748
-	a = k[3]; a &= 0xe0; a >>= 4; a |= k[7] & 0xf0; a = pc1[a + 1];
749
-
750
-	pe[ 0 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d];
751
-	pe[ 1 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
752
-	pe[ 2 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
753
-	pe[ 3 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
754
-	pe[ 4 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
755
-	pe[ 5 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c]; b = rs[b];
756
-	pe[ 6 * 2 + 1] = DES_PC2(b, c, d, a); a = rs[a]; d = rs[d];
757
-	pe[ 7 * 2 + 1] = DES_PC2(d, a, b, c); c = rs[c];
758
-	pe[ 8 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
759
-	pe[ 9 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
760
-	pe[10 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
761
-	pe[11 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
762
-	pe[12 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b]; a = rs[a];
763
-	pe[13 * 2 + 1] = DES_PC2(a, b, c, d); d = rs[d]; c = rs[c];
764
-	pe[14 * 2 + 1] = DES_PC2(c, d, a, b); b = rs[b];
765
-	pe[15 * 2 + 1] = DES_PC2(b, c, d, a);
766
-
767
-	/* Fixup: 2413 5768 -> 1357 2468 */
768
-	for (d = 0; d < 16; ++d) {
769
-		a = pe[2 * d];
770
-		b = pe[2 * d + 1];
771
-		c = a ^ b;
772
-		c &= 0xffff0000;
773
-		a ^= c;
774
-		b ^= c;
775
-		ROL(b, 18);
776
-		pe[2 * d] = a;
777
-		pe[2 * d + 1] = b;
778
-	}
779
-}
17
+#include <crypto/internal/des.h>
78018 
78119 static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
78220 		      unsigned int keylen)
78321 {
78422 	struct des_ctx *dctx = crypto_tfm_ctx(tfm);
785
-	u32 *flags = &tfm->crt_flags;
786
-	u32 tmp[DES_EXPKEY_WORDS];
787
-	int ret;
23
+	int err;
78824 
789
-	/* Expand to tmp */
790
-	ret = des_ekey(tmp, key);
791
-
792
-	if (unlikely(ret == 0) && (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
793
-		*flags |= CRYPTO_TFM_RES_WEAK_KEY;
794
-		return -EINVAL;
25
+	err = des_expand_key(dctx, key, keylen);
26
+	if (err == -ENOKEY) {
27
+		if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
28
+			err = -EINVAL;
29
+		else
30
+			err = 0;
79531 	}
796
-
797
-	/* Copy to output */
798
-	memcpy(dctx->expkey, tmp, sizeof(dctx->expkey));
799
-
800
-	return 0;
32
+	if (err)
33
+		memset(dctx, 0, sizeof(*dctx));
34
+	return err;
80135 }
80236 
803
-static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
37
+static void crypto_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
80438 {
805
-	struct des_ctx *ctx = crypto_tfm_ctx(tfm);
806
-	const u32 *K = ctx->expkey;
807
-	const __le32 *s = (const __le32 *)src;
808
-	__le32 *d = (__le32 *)dst;
809
-	u32 L, R, A, B;
810
-	int i;
39
+	const struct des_ctx *dctx = crypto_tfm_ctx(tfm);
81140 
812
-	L = le32_to_cpu(s[0]);
813
-	R = le32_to_cpu(s[1]);
814
-
815
-	IP(L, R, A);
816
-	for (i = 0; i < 8; i++) {
817
-		ROUND(L, R, A, B, K, 2);
818
-		ROUND(R, L, A, B, K, 2);
819
-	}
820
-	FP(R, L, A);
821
-
822
-	d[0] = cpu_to_le32(R);
823
-	d[1] = cpu_to_le32(L);
41
+	des_encrypt(dctx, dst, src);
82442 }
82543 
826
-static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
44
+static void crypto_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
82745 {
828
-	struct des_ctx *ctx = crypto_tfm_ctx(tfm);
829
-	const u32 *K = ctx->expkey + DES_EXPKEY_WORDS - 2;
830
-	const __le32 *s = (const __le32 *)src;
831
-	__le32 *d = (__le32 *)dst;
832
-	u32 L, R, A, B;
833
-	int i;
46
+	const struct des_ctx *dctx = crypto_tfm_ctx(tfm);
83447 
835
-	L = le32_to_cpu(s[0]);
836
-	R = le32_to_cpu(s[1]);
837
-
838
-	IP(L, R, A);
839
-	for (i = 0; i < 8; i++) {
840
-		ROUND(L, R, A, B, K, -2);
841
-		ROUND(R, L, A, B, K, -2);
842
-	}
843
-	FP(R, L, A);
844
-
845
-	d[0] = cpu_to_le32(R);
846
-	d[1] = cpu_to_le32(L);
48
+	des_decrypt(dctx, dst, src);
84749 }
848
-
849
-int __des3_ede_setkey(u32 *expkey, u32 *flags, const u8 *key,
850
-		      unsigned int keylen)
851
-{
852
-	const u32 *K = (const u32 *)key;
853
-
854
-	if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
855
-		     !((K[2] ^ K[4]) | (K[3] ^ K[5]))) &&
856
-		     (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
857
-		*flags |= CRYPTO_TFM_RES_WEAK_KEY;
858
-		return -EINVAL;
859
-	}
860
-
861
-	des_ekey(expkey, key); expkey += DES_EXPKEY_WORDS; key += DES_KEY_SIZE;
862
-	dkey(expkey, key); expkey += DES_EXPKEY_WORDS; key += DES_KEY_SIZE;
863
-	des_ekey(expkey, key);
864
-
865
-	return 0;
866
-}
867
-EXPORT_SYMBOL_GPL(__des3_ede_setkey);
86850 
86951 static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key,
87052 			   unsigned int keylen)
87153 {
87254 	struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
873
-	u32 *flags = &tfm->crt_flags;
874
-	u32 *expkey = dctx->expkey;
55
+	int err;
87556 
876
-	return __des3_ede_setkey(expkey, flags, key, keylen);
57
+	err = des3_ede_expand_key(dctx, key, keylen);
58
+	if (err == -ENOKEY) {
59
+		if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
60
+			err = -EINVAL;
61
+		else
62
+			err = 0;
63
+	}
64
+	if (err)
65
+		memset(dctx, 0, sizeof(*dctx));
66
+	return err;
87767 }
87868 
879
-static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
69
+static void crypto_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst,
70
+				    const u8 *src)
88071 {
881
-	struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
882
-	const u32 *K = dctx->expkey;
883
-	const __le32 *s = (const __le32 *)src;
884
-	__le32 *d = (__le32 *)dst;
885
-	u32 L, R, A, B;
886
-	int i;
72
+	const struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
88773 
888
-	L = le32_to_cpu(s[0]);
889
-	R = le32_to_cpu(s[1]);
890
-
891
-	IP(L, R, A);
892
-	for (i = 0; i < 8; i++) {
893
-		ROUND(L, R, A, B, K, 2);
894
-		ROUND(R, L, A, B, K, 2);
895
-	}
896
-	for (i = 0; i < 8; i++) {
897
-		ROUND(R, L, A, B, K, 2);
898
-		ROUND(L, R, A, B, K, 2);
899
-	}
900
-	for (i = 0; i < 8; i++) {
901
-		ROUND(L, R, A, B, K, 2);
902
-		ROUND(R, L, A, B, K, 2);
903
-	}
904
-	FP(R, L, A);
905
-
906
-	d[0] = cpu_to_le32(R);
907
-	d[1] = cpu_to_le32(L);
74
+	des3_ede_encrypt(dctx, dst, src);
90875 }
90976 
910
-static void des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
77
+static void crypto_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst,
78
+				    const u8 *src)
91179 {
912
-	struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
913
-	const u32 *K = dctx->expkey + DES3_EDE_EXPKEY_WORDS - 2;
914
-	const __le32 *s = (const __le32 *)src;
915
-	__le32 *d = (__le32 *)dst;
916
-	u32 L, R, A, B;
917
-	int i;
80
+	const struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
91881 
919
-	L = le32_to_cpu(s[0]);
920
-	R = le32_to_cpu(s[1]);
921
-
922
-	IP(L, R, A);
923
-	for (i = 0; i < 8; i++) {
924
-		ROUND(L, R, A, B, K, -2);
925
-		ROUND(R, L, A, B, K, -2);
926
-	}
927
-	for (i = 0; i < 8; i++) {
928
-		ROUND(R, L, A, B, K, -2);
929
-		ROUND(L, R, A, B, K, -2);
930
-	}
931
-	for (i = 0; i < 8; i++) {
932
-		ROUND(L, R, A, B, K, -2);
933
-		ROUND(R, L, A, B, K, -2);
934
-	}
935
-	FP(R, L, A);
936
-
937
-	d[0] = cpu_to_le32(R);
938
-	d[1] = cpu_to_le32(L);
82
+	des3_ede_decrypt(dctx, dst, src);
93983 }
94084 
94185 static struct crypto_alg des_algs[2] = { {
....@@ -946,13 +90,12 @@
94690 	.cra_blocksize		=	DES_BLOCK_SIZE,
94791 	.cra_ctxsize		=	sizeof(struct des_ctx),
94892 	.cra_module		=	THIS_MODULE,
949
-	.cra_alignmask		=	3,
95093 	.cra_u			=	{ .cipher = {
95194 	.cia_min_keysize	=	DES_KEY_SIZE,
95295 	.cia_max_keysize	=	DES_KEY_SIZE,
95396 	.cia_setkey		=	des_setkey,
954
-	.cia_encrypt		=	des_encrypt,
955
-	.cia_decrypt		=	des_decrypt } }
97
+	.cia_encrypt		=	crypto_des_encrypt,
98
+	.cia_decrypt		=	crypto_des_decrypt } }
95699 }, {
957100 	.cra_name		=	"des3_ede",
958101 	.cra_driver_name	=	"des3_ede-generic",
....@@ -961,13 +104,12 @@
961104 	.cra_blocksize		=	DES3_EDE_BLOCK_SIZE,
962105 	.cra_ctxsize		=	sizeof(struct des3_ede_ctx),
963106 	.cra_module		=	THIS_MODULE,
964
-	.cra_alignmask		=	3,
965107 	.cra_u			=	{ .cipher = {
966108 	.cia_min_keysize	=	DES3_EDE_KEY_SIZE,
967109 	.cia_max_keysize	=	DES3_EDE_KEY_SIZE,
968110 	.cia_setkey		=	des3_ede_setkey,
969
-	.cia_encrypt		=	des3_ede_encrypt,
970
-	.cia_decrypt		=	des3_ede_decrypt } }
111
+	.cia_encrypt		=	crypto_des3_ede_encrypt,
112
+	.cia_decrypt		=	crypto_des3_ede_decrypt } }
971113 } };
972114 
973115 static int __init des_generic_mod_init(void)
....@@ -980,7 +122,7 @@
980122 	crypto_unregister_algs(des_algs, ARRAY_SIZE(des_algs));
981123 }
982124 
983
-module_init(des_generic_mod_init);
125
+subsys_initcall(des_generic_mod_init);
984126 module_exit(des_generic_mod_fini);
985127 
986128 MODULE_LICENSE("GPL");