4 * DES & Triple DES EDE Cipher Algorithms.
6 * Originally released as descore by Dana L. How <how@isl.stanford.edu>.
7 * Modified by Raimar Falke <rf13@inf.tu-dresden.de> for the Linux-Kernel.
8 * Derived from Cryptoapi and Nettle implementations, adapted for in-place
9 * scatterlist interface. Changed LGPL to GPL per section 3 of the LGPL.
11 * Copyright (c) 1992 Dana L. How.
12 * Copyright (c) Raimar Falke <rf13@inf.tu-dresden.de>
13 * Copyright (c) Gisle Sælensminde <gisle@ii.uib.no>
14 * Copyright (C) 2001 Niels Möller.
15 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
23 #include <linux/init.h>
24 #include <linux/module.h>
26 #include <linux/errno.h>
27 #include <asm/scatterlist.h>
28 #include <linux/crypto.h>
30 #define DES_KEY_SIZE 8
31 #define DES_EXPKEY_WORDS 32
32 #define DES_BLOCK_SIZE 8
34 #define DES3_EDE_KEY_SIZE (3 * DES_KEY_SIZE)
35 #define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
36 #define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
38 #define ROR(d,c,o) ((d) = (d) >> (c) | (d) << (o))
41 u8 iv[DES_BLOCK_SIZE];
42 u32 expkey[DES_EXPKEY_WORDS];
46 u8 iv[DES_BLOCK_SIZE];
47 u32 expkey[DES3_EDE_EXPKEY_WORDS];
50 static const u32 des_keymap[] = {
51 0x02080008, 0x02082000, 0x00002008, 0x00000000,
52 0x02002000, 0x00080008, 0x02080000, 0x02082008,
53 0x00000008, 0x02000000, 0x00082000, 0x00002008,
54 0x00082008, 0x02002008, 0x02000008, 0x02080000,
55 0x00002000, 0x00082008, 0x00080008, 0x02002000,
56 0x02082008, 0x02000008, 0x00000000, 0x00082000,
57 0x02000000, 0x00080000, 0x02002008, 0x02080008,
58 0x00080000, 0x00002000, 0x02082000, 0x00000008,
59 0x00080000, 0x00002000, 0x02000008, 0x02082008,
60 0x00002008, 0x02000000, 0x00000000, 0x00082000,
61 0x02080008, 0x02002008, 0x02002000, 0x00080008,
62 0x02082000, 0x00000008, 0x00080008, 0x02002000,
63 0x02082008, 0x00080000, 0x02080000, 0x02000008,
64 0x00082000, 0x00002008, 0x02002008, 0x02080000,
65 0x00000008, 0x02082000, 0x00082008, 0x00000000,
66 0x02000000, 0x02080008, 0x00002000, 0x00082008,
68 0x08000004, 0x00020004, 0x00000000, 0x08020200,
69 0x00020004, 0x00000200, 0x08000204, 0x00020000,
70 0x00000204, 0x08020204, 0x00020200, 0x08000000,
71 0x08000200, 0x08000004, 0x08020000, 0x00020204,
72 0x00020000, 0x08000204, 0x08020004, 0x00000000,
73 0x00000200, 0x00000004, 0x08020200, 0x08020004,
74 0x08020204, 0x08020000, 0x08000000, 0x00000204,
75 0x00000004, 0x00020200, 0x00020204, 0x08000200,
76 0x00000204, 0x08000000, 0x08000200, 0x00020204,
77 0x08020200, 0x00020004, 0x00000000, 0x08000200,
78 0x08000000, 0x00000200, 0x08020004, 0x00020000,
79 0x00020004, 0x08020204, 0x00020200, 0x00000004,
80 0x08020204, 0x00020200, 0x00020000, 0x08000204,
81 0x08000004, 0x08020000, 0x00020204, 0x00000000,
82 0x00000200, 0x08000004, 0x08000204, 0x08020200,
83 0x08020000, 0x00000204, 0x00000004, 0x08020004,
85 0x80040100, 0x01000100, 0x80000000, 0x81040100,
86 0x00000000, 0x01040000, 0x81000100, 0x80040000,
87 0x01040100, 0x81000000, 0x01000000, 0x80000100,
88 0x81000000, 0x80040100, 0x00040000, 0x01000000,
89 0x81040000, 0x00040100, 0x00000100, 0x80000000,
90 0x00040100, 0x81000100, 0x01040000, 0x00000100,
91 0x80000100, 0x00000000, 0x80040000, 0x01040100,
92 0x01000100, 0x81040000, 0x81040100, 0x00040000,
93 0x81040000, 0x80000100, 0x00040000, 0x81000000,
94 0x00040100, 0x01000100, 0x80000000, 0x01040000,
95 0x81000100, 0x00000000, 0x00000100, 0x80040000,
96 0x00000000, 0x81040000, 0x01040100, 0x00000100,
97 0x01000000, 0x81040100, 0x80040100, 0x00040000,
98 0x81040100, 0x80000000, 0x01000100, 0x80040100,
99 0x80040000, 0x00040100, 0x01040000, 0x81000100,
100 0x80000100, 0x01000000, 0x81000000, 0x01040100,
102 0x04010801, 0x00000000, 0x00010800, 0x04010000,
103 0x04000001, 0x00000801, 0x04000800, 0x00010800,
104 0x00000800, 0x04010001, 0x00000001, 0x04000800,
105 0x00010001, 0x04010800, 0x04010000, 0x00000001,
106 0x00010000, 0x04000801, 0x04010001, 0x00000800,
107 0x00010801, 0x04000000, 0x00000000, 0x00010001,
108 0x04000801, 0x00010801, 0x04010800, 0x04000001,
109 0x04000000, 0x00010000, 0x00000801, 0x04010801,
110 0x00010001, 0x04010800, 0x04000800, 0x00010801,
111 0x04010801, 0x00010001, 0x04000001, 0x00000000,
112 0x04000000, 0x00000801, 0x00010000, 0x04010001,
113 0x00000800, 0x04000000, 0x00010801, 0x04000801,
114 0x04010800, 0x00000800, 0x00000000, 0x04000001,
115 0x00000001, 0x04010801, 0x00010800, 0x04010000,
116 0x04010001, 0x00010000, 0x00000801, 0x04000800,
117 0x04000801, 0x00000001, 0x04010000, 0x00010800,
119 0x00000400, 0x00000020, 0x00100020, 0x40100000,
120 0x40100420, 0x40000400, 0x00000420, 0x00000000,
121 0x00100000, 0x40100020, 0x40000020, 0x00100400,
122 0x40000000, 0x00100420, 0x00100400, 0x40000020,
123 0x40100020, 0x00000400, 0x40000400, 0x40100420,
124 0x00000000, 0x00100020, 0x40100000, 0x00000420,
125 0x40100400, 0x40000420, 0x00100420, 0x40000000,
126 0x40000420, 0x40100400, 0x00000020, 0x00100000,
127 0x40000420, 0x00100400, 0x40100400, 0x40000020,
128 0x00000400, 0x00000020, 0x00100000, 0x40100400,
129 0x40100020, 0x40000420, 0x00000420, 0x00000000,
130 0x00000020, 0x40100000, 0x40000000, 0x00100020,
131 0x00000000, 0x40100020, 0x00100020, 0x00000420,
132 0x40000020, 0x00000400, 0x40100420, 0x00100000,
133 0x00100420, 0x40000000, 0x40000400, 0x40100420,
134 0x40100000, 0x00100420, 0x00100400, 0x40000400,
136 0x00800000, 0x00001000, 0x00000040, 0x00801042,
137 0x00801002, 0x00800040, 0x00001042, 0x00801000,
138 0x00001000, 0x00000002, 0x00800002, 0x00001040,
139 0x00800042, 0x00801002, 0x00801040, 0x00000000,
140 0x00001040, 0x00800000, 0x00001002, 0x00000042,
141 0x00800040, 0x00001042, 0x00000000, 0x00800002,
142 0x00000002, 0x00800042, 0x00801042, 0x00001002,
143 0x00801000, 0x00000040, 0x00000042, 0x00801040,
144 0x00801040, 0x00800042, 0x00001002, 0x00801000,
145 0x00001000, 0x00000002, 0x00800002, 0x00800040,
146 0x00800000, 0x00001040, 0x00801042, 0x00000000,
147 0x00001042, 0x00800000, 0x00000040, 0x00001002,
148 0x00800042, 0x00000040, 0x00000000, 0x00801042,
149 0x00801002, 0x00801040, 0x00000042, 0x00001000,
150 0x00001040, 0x00801002, 0x00800040, 0x00000042,
151 0x00000002, 0x00001042, 0x00801000, 0x00800002,
153 0x10400000, 0x00404010, 0x00000010, 0x10400010,
154 0x10004000, 0x00400000, 0x10400010, 0x00004010,
155 0x00400010, 0x00004000, 0x00404000, 0x10000000,
156 0x10404010, 0x10000010, 0x10000000, 0x10404000,
157 0x00000000, 0x10004000, 0x00404010, 0x00000010,
158 0x10000010, 0x10404010, 0x00004000, 0x10400000,
159 0x10404000, 0x00400010, 0x10004010, 0x00404000,
160 0x00004010, 0x00000000, 0x00400000, 0x10004010,
161 0x00404010, 0x00000010, 0x10000000, 0x00004000,
162 0x10000010, 0x10004000, 0x00404000, 0x10400010,
163 0x00000000, 0x00404010, 0x00004010, 0x10404000,
164 0x10004000, 0x00400000, 0x10404010, 0x10000000,
165 0x10004010, 0x10400000, 0x00400000, 0x10404010,
166 0x00004000, 0x00400010, 0x10400010, 0x00004010,
167 0x00400010, 0x00000000, 0x10404000, 0x10000010,
168 0x10400000, 0x10004010, 0x00000010, 0x00404000,
170 0x00208080, 0x00008000, 0x20200000, 0x20208080,
171 0x00200000, 0x20008080, 0x20008000, 0x20200000,
172 0x20008080, 0x00208080, 0x00208000, 0x20000080,
173 0x20200080, 0x00200000, 0x00000000, 0x20008000,
174 0x00008000, 0x20000000, 0x00200080, 0x00008080,
175 0x20208080, 0x00208000, 0x20000080, 0x00200080,
176 0x20000000, 0x00000080, 0x00008080, 0x20208000,
177 0x00000080, 0x20200080, 0x20208000, 0x00000000,
178 0x00000000, 0x20208080, 0x00200080, 0x20008000,
179 0x00208080, 0x00008000, 0x20000080, 0x00200080,
180 0x20208000, 0x00000080, 0x00008080, 0x20200000,
181 0x20008080, 0x20000000, 0x20200000, 0x00208000,
182 0x20208080, 0x00008080, 0x00208000, 0x20200080,
183 0x00200000, 0x20000080, 0x20008000, 0x00000000,
184 0x00008000, 0x00200000, 0x20200080, 0x00208080,
185 0x20000000, 0x20208000, 0x00000080, 0x20008080,
188 static const u8 rotors[] = {
189 34, 13, 5, 46, 47, 18, 32, 41, 11, 53, 33, 20,
190 14, 36, 30, 24, 49, 2, 15, 37, 42, 50, 0, 21,
191 38, 48, 6, 26, 39, 4, 52, 25, 12, 27, 31, 40,
192 1, 17, 28, 29, 23, 51, 35, 7, 3, 22, 9, 43,
194 41, 20, 12, 53, 54, 25, 39, 48, 18, 31, 40, 27,
195 21, 43, 37, 0, 1, 9, 22, 44, 49, 2, 7, 28,
196 45, 55, 13, 33, 46, 11, 6, 32, 19, 34, 38, 47,
197 8, 24, 35, 36, 30, 3, 42, 14, 10, 29, 16, 50,
199 55, 34, 26, 38, 11, 39, 53, 5, 32, 45, 54, 41,
200 35, 2, 51, 14, 15, 23, 36, 3, 8, 16, 21, 42,
201 6, 12, 27, 47, 31, 25, 20, 46, 33, 48, 52, 4,
202 22, 7, 49, 50, 44, 17, 1, 28, 24, 43, 30, 9,
204 12, 48, 40, 52, 25, 53, 38, 19, 46, 6, 11, 55,
205 49, 16, 10, 28, 29, 37, 50, 17, 22, 30, 35, 1,
206 20, 26, 41, 4, 45, 39, 34, 31, 47, 5, 13, 18,
207 36, 21, 8, 9, 3, 0, 15, 42, 7, 2, 44, 23,
209 26, 5, 54, 13, 39, 38, 52, 33, 31, 20, 25, 12,
210 8, 30, 24, 42, 43, 51, 9, 0, 36, 44, 49, 15,
211 34, 40, 55, 18, 6, 53, 48, 45, 4, 19, 27, 32,
212 50, 35, 22, 23, 17, 14, 29, 1, 21, 16, 3, 37,
214 40, 19, 11, 27, 53, 52, 13, 47, 45, 34, 39, 26,
215 22, 44, 7, 1, 2, 10, 23, 14, 50, 3, 8, 29,
216 48, 54, 12, 32, 20, 38, 5, 6, 18, 33, 41, 46,
217 9, 49, 36, 37, 0, 28, 43, 15, 35, 30, 17, 51,
219 54, 33, 25, 41, 38, 13, 27, 4, 6, 48, 53, 40,
220 36, 3, 21, 15, 16, 24, 37, 28, 9, 17, 22, 43,
221 5, 11, 26, 46, 34, 52, 19, 20, 32, 47, 55, 31,
222 23, 8, 50, 51, 14, 42, 2, 29, 49, 44, 0, 10,
224 11, 47, 39, 55, 52, 27, 41, 18, 20, 5, 38, 54,
225 50, 17, 35, 29, 30, 7, 51, 42, 23, 0, 36, 2,
226 19, 25, 40, 31, 48, 13, 33, 34, 46, 4, 12, 45,
227 37, 22, 9, 10, 28, 1, 16, 43, 8, 3, 14, 24,
229 18, 54, 46, 5, 6, 34, 48, 25, 27, 12, 45, 4,
230 2, 24, 42, 36, 37, 14, 3, 49, 30, 7, 43, 9,
231 26, 32, 47, 38, 55, 20, 40, 41, 53, 11, 19, 52,
232 44, 29, 16, 17, 35, 8, 23, 50, 15, 10, 21, 0,
234 32, 11, 31, 19, 20, 48, 5, 39, 41, 26, 6, 18,
235 16, 7, 1, 50, 51, 28, 17, 8, 44, 21, 2, 23,
236 40, 46, 4, 52, 12, 34, 54, 55, 38, 25, 33, 13,
237 3, 43, 30, 0, 49, 22, 37, 9, 29, 24, 35, 14,
239 46, 25, 45, 33, 34, 5, 19, 53, 55, 40, 20, 32,
240 30, 21, 15, 9, 10, 42, 0, 22, 3, 35, 16, 37,
241 54, 31, 18, 13, 26, 48, 11, 12, 52, 39, 47, 27,
242 17, 2, 44, 14, 8, 36, 51, 23, 43, 7, 49, 28,
244 31, 39, 6, 47, 48, 19, 33, 38, 12, 54, 34, 46,
245 44, 35, 29, 23, 24, 1, 14, 36, 17, 49, 30, 51,
246 11, 45, 32, 27, 40, 5, 25, 26, 13, 53, 4, 41,
247 0, 16, 3, 28, 22, 50, 10, 37, 2, 21, 8, 42,
249 45, 53, 20, 4, 5, 33, 47, 52, 26, 11, 48, 31,
250 3, 49, 43, 37, 7, 15, 28, 50, 0, 8, 44, 10,
251 25, 6, 46, 41, 54, 19, 39, 40, 27, 38, 18, 55,
252 14, 30, 17, 42, 36, 9, 24, 51, 16, 35, 22, 1,
254 6, 38, 34, 18, 19, 47, 4, 13, 40, 25, 5, 45,
255 17, 8, 2, 51, 21, 29, 42, 9, 14, 22, 3, 24,
256 39, 20, 31, 55, 11, 33, 53, 54, 41, 52, 32, 12,
257 28, 44, 0, 1, 50, 23, 7, 10, 30, 49, 36, 15,
259 20, 52, 48, 32, 33, 4, 18, 27, 54, 39, 19, 6,
260 0, 22, 16, 10, 35, 43, 1, 23, 28, 36, 17, 7,
261 53, 34, 45, 12, 25, 47, 38, 11, 55, 13, 46, 26,
262 42, 3, 14, 15, 9, 37, 21, 24, 44, 8, 50, 29,
264 27, 6, 55, 39, 40, 11, 25, 34, 4, 46, 26, 13,
265 7, 29, 23, 17, 42, 50, 8, 30, 35, 43, 24, 14,
266 31, 41, 52, 19, 32, 54, 45, 18, 5, 20, 53, 33,
267 49, 10, 21, 22, 16, 44, 28, 0, 51, 15, 2, 36,
270 static const u8 parity[] = {
271 8,1,0,8,0,8,8,0,0,8,8,0,8,0,2,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,3,
272 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
273 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
274 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
275 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
276 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
277 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
278 4,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,5,0,8,0,8,8,0,0,8,8,0,8,0,6,8,
282 static void des_small_fips_encrypt(u32 *expkey, u8 *dst, const u8 *src)
300 z = ((x >> 004) ^ y) & 0x0F0F0F0FL;
303 z = ((y >> 020) ^ x) & 0x0000FFFFL;
306 z = ((x >> 002) ^ y) & 0x33333333L;
309 z = ((y >> 010) ^ x) & 0x00FF00FFL;
312 x = x >> 1 | x << 31;
313 z = (x ^ y) & 0x55555555L;
316 y = y >> 1 | y << 31;
319 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
321 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
323 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
325 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
328 z = z << 4 | z >> 28;
329 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
331 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
333 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
335 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
338 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
340 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
342 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
344 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
347 z = z << 4 | z >> 28;
348 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
350 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
352 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
354 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
357 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
359 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
361 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
363 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
366 z = z << 4 | z >> 28;
367 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
369 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
371 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
373 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
376 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
378 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
380 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
382 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
385 z = z << 4 | z >> 28;
386 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
388 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
390 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
392 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
395 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
397 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
399 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
401 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
404 z = z << 4 | z >> 28;
405 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
407 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
409 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
411 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
414 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
416 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
418 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
420 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
423 z = z << 4 | z >> 28;
424 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
426 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
428 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
430 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
433 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
435 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
437 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
439 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
442 z = z << 4 | z >> 28;
443 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
445 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
447 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
449 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
452 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
454 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
456 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
458 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
461 z = z << 4 | z >> 28;
462 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
464 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
466 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
468 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
471 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
473 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
475 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
477 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
480 z = z << 4 | z >> 28;
481 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
483 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
485 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
487 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
490 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
492 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
494 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
496 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
499 z = z << 4 | z >> 28;
500 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
502 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
504 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
506 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
509 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
511 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
513 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
515 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
518 z = z << 4 | z >> 28;
519 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
521 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
523 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
525 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
528 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
530 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
532 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
534 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
537 z = z << 4 | z >> 28;
538 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
540 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
542 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
544 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
547 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
549 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
551 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
553 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
556 z = z << 4 | z >> 28;
557 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
559 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
561 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
563 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
566 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
568 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
570 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
572 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
575 z = z << 4 | z >> 28;
576 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
578 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
580 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
582 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
585 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
587 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
589 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
591 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
594 z = z << 4 | z >> 28;
595 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
597 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
599 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
601 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
604 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
606 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
608 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
610 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
613 z = z << 4 | z >> 28;
614 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
616 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
618 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
620 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
621 x = x << 1 | x >> 31;
622 z = (x ^ y) & 0x55555555L;
625 y = y << 1 | y >> 31;
626 z = ((x >> 010) ^ y) & 0x00FF00FFL;
629 z = ((y >> 002) ^ x) & 0x33333333L;
632 z = ((x >> 020) ^ y) & 0x0000FFFFL;
635 z = ((y >> 004) ^ x) & 0x0F0F0F0FL;
654 static void des_small_fips_decrypt(u32 *expkey, u8 *dst, const u8 *src)
672 z = ((x >> 004) ^ y) & 0x0F0F0F0FL;
675 z = ((y >> 020) ^ x) & 0x0000FFFFL;
678 z = ((x >> 002) ^ y) & 0x33333333L;
681 z = ((y >> 010) ^ x) & 0x00FF00FFL;
684 x = x >> 1 | x << 31;
685 z = (x ^ y) & 0x55555555L;
688 y = y >> 1 | y << 31;
691 z = z << 4 | z >> 28;
692 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
694 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
696 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
698 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
701 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
703 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
705 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
707 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
710 z = z << 4 | z >> 28;
711 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
713 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
715 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
717 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
720 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
722 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
724 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
726 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
729 z = z << 4 | z >> 28;
730 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
732 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
734 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
736 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
739 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
741 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
743 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
745 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
748 z = z << 4 | z >> 28;
749 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
751 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
753 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
755 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
758 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
760 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
762 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
764 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
767 z = z << 4 | z >> 28;
768 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
770 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
772 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
774 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
777 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
779 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
781 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
783 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
786 z = z << 4 | z >> 28;
787 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
789 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
791 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
793 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
796 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
798 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
800 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
802 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
805 z = z << 4 | z >> 28;
806 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
808 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
810 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
812 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
815 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
817 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
819 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
821 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
824 z = z << 4 | z >> 28;
825 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
827 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
829 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
831 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
834 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
836 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
838 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
840 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
843 z = z << 4 | z >> 28;
844 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
846 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
848 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
850 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
853 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
855 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
857 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
859 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
862 z = z << 4 | z >> 28;
863 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
865 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
867 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
869 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
872 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
874 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
876 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
878 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
881 z = z << 4 | z >> 28;
882 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
884 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
886 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
888 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
891 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
893 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
895 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
897 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
900 z = z << 4 | z >> 28;
901 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
903 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
905 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
907 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
910 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
912 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
914 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
916 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
919 z = z << 4 | z >> 28;
920 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
922 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
924 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
926 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
929 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
931 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
933 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
935 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
938 z = z << 4 | z >> 28;
939 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
941 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
943 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
945 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
948 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
950 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
952 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
954 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
957 z = z << 4 | z >> 28;
958 x ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
960 x ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
962 x ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
964 x ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
967 x ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
969 x ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
971 x ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
973 x ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
976 z = z << 4 | z >> 28;
977 y ^= * (u32 *) ((u8 *) (des_keymap + 448) + (0xFC & z));
979 y ^= * (u32 *) ((u8 *) (des_keymap + 384) + (0xFC & z));
981 y ^= * (u32 *) ((u8 *) (des_keymap + 320) + (0xFC & z));
983 y ^= * (u32 *) ((u8 *) (des_keymap + 256) + (0xFC & z));
986 y ^= * (u32 *) ((u8 *) (des_keymap + 192) + (0xFC & z));
988 y ^= * (u32 *) ((u8 *) (des_keymap + 128) + (0xFC & z));
990 y ^= * (u32 *) ((u8 *) (des_keymap + 64) + (0xFC & z));
992 y ^= * (u32 *) ((u8 *) des_keymap + (0xFC & z));
993 x = x << 1 | x >> 31;
994 z = (x ^ y) & 0x55555555L;
997 y = y << 1 | y >> 31;
998 z = ((x >> 010) ^ y) & 0x00FF00FFL;
1001 z = ((y >> 002) ^ x) & 0x33333333L;
1004 z = ((x >> 020) ^ y) & 0x0000FFFFL;
1007 z = ((y >> 004) ^ x) & 0x0F0F0F0FL;
1027 * RFC2451: Weak key checks SHOULD be performed.
1029 static int setkey(u32 *expkey, const u8 *key, unsigned int keylen, u32 *flags)
1034 u8 bits0[56], bits1[56];
1036 n = parity[key[0]]; n <<= 4;
1037 n |= parity[key[1]]; n <<= 4;
1038 n |= parity[key[2]]; n <<= 4;
1039 n |= parity[key[3]]; n <<= 4;
1040 n |= parity[key[4]]; n <<= 4;
1041 n |= parity[key[5]]; n <<= 4;
1042 n |= parity[key[6]]; n <<= 4;
1043 n |= parity[key[7]];
1046 if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY)
1047 && !((n - (w >> 3)) & w)) { /* 1 in 10^10 keys passes this test */
1048 if (n < 0x41415151) {
1049 if (n < 0x31312121) {
1050 if (n < 0x14141515) {
1051 /* 01 01 01 01 01 01 01 01 */
1052 if (n == 0x11111111) goto weak;
1053 /* 01 1F 01 1F 01 0E 01 0E */
1054 if (n == 0x13131212) goto weak;
1056 /* 01 E0 01 E0 01 F1 01 F1 */
1057 if (n == 0x14141515) goto weak;
1058 /* 01 FE 01 FE 01 FE 01 FE */
1059 if (n == 0x16161616) goto weak;
1062 if (n < 0x34342525) {
1063 /* 1F 01 1F 01 0E 01 0E 01 */
1064 if (n == 0x31312121) goto weak;
1065 /* 1F 1F 1F 1F 0E 0E 0E 0E (?) */
1066 if (n == 0x33332222) goto weak;
1068 /* 1F E0 1F E0 0E F1 0E F1 */
1069 if (n == 0x34342525) goto weak;
1070 /* 1F FE 1F FE 0E FE 0E FE */
1071 if (n == 0x36362626) goto weak;
1075 if (n < 0x61616161) {
1076 if (n < 0x44445555) {
1077 /* E0 01 E0 01 F1 01 F1 01 */
1078 if (n == 0x41415151) goto weak;
1079 /* E0 1F E0 1F F1 0E F1 0E */
1080 if (n == 0x43435252) goto weak;
1082 /* E0 E0 E0 E0 F1 F1 F1 F1 (?) */
1083 if (n == 0x44445555) goto weak;
1084 /* E0 FE E0 FE F1 FE F1 FE */
1085 if (n == 0x46465656) goto weak;
1088 if (n < 0x64646565) {
1089 /* FE 01 FE 01 FE 01 FE 01 */
1090 if (n == 0x61616161) goto weak;
1091 /* FE 1F FE 1F FE 0E FE 0E */
1092 if (n == 0x63636262) goto weak;
1094 /* FE E0 FE E0 FE F1 FE F1 */
1095 if (n == 0x64646565) goto weak;
1096 /* FE FE FE FE FE FE FE FE */
1097 if (n == 0x66666666) goto weak;
1104 *flags |= CRYPTO_TFM_RES_WEAK_KEY;
1110 /* explode the bits */
1116 w = (256 | *key++) << 2;
1122 } while ( w >= 16 );
1125 /* put the bits in the correct places */
1130 w = (b1[k[ 0 ]] | b0[k[ 1 ]]) << 4;
1131 w |= (b1[k[ 2 ]] | b0[k[ 3 ]]) << 2;
1132 w |= b1[k[ 4 ]] | b0[k[ 5 ]];
1134 w |= (b1[k[ 6 ]] | b0[k[ 7 ]]) << 4;
1135 w |= (b1[k[ 8 ]] | b0[k[ 9 ]]) << 2;
1136 w |= b1[k[10 ]] | b0[k[11 ]];
1138 w |= (b1[k[12 ]] | b0[k[13 ]]) << 4;
1139 w |= (b1[k[14 ]] | b0[k[15 ]]) << 2;
1140 w |= b1[k[16 ]] | b0[k[17 ]];
1142 w |= (b1[k[18 ]] | b0[k[19 ]]) << 4;
1143 w |= (b1[k[20 ]] | b0[k[21 ]]) << 2;
1144 w |= b1[k[22 ]] | b0[k[23 ]];
1147 w = (b1[k[ 0+24]] | b0[k[ 1+24]]) << 4;
1148 w |= (b1[k[ 2+24]] | b0[k[ 3+24]]) << 2;
1149 w |= b1[k[ 4+24]] | b0[k[ 5+24]];
1151 w |= (b1[k[ 6+24]] | b0[k[ 7+24]]) << 4;
1152 w |= (b1[k[ 8+24]] | b0[k[ 9+24]]) << 2;
1153 w |= b1[k[10+24]] | b0[k[11+24]];
1155 w |= (b1[k[12+24]] | b0[k[13+24]]) << 4;
1156 w |= (b1[k[14+24]] | b0[k[15+24]]) << 2;
1157 w |= b1[k[16+24]] | b0[k[17+24]];
1159 w |= (b1[k[18+24]] | b0[k[19+24]]) << 4;
1160 w |= (b1[k[20+24]] | b0[k[21+24]]) << 2;
1161 w |= b1[k[22+24]] | b0[k[23+24]];
1163 ROR(w, 4, 28); /* could be eliminated */
1173 static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
1175 return setkey(((struct des_ctx *)ctx)->expkey, key, keylen, flags);
1178 static void des_encrypt(void *ctx, u8 *dst, const u8 *src)
1180 des_small_fips_encrypt(((struct des_ctx *)ctx)->expkey, dst, src);
1183 static void des_decrypt(void *ctx, u8 *dst, const u8 *src)
1185 des_small_fips_decrypt(((struct des_ctx *)ctx)->expkey, dst, src);
1191 * For DES-EDE3, there is no known need to reject weak or
1192 * complementation keys. Any weakness is obviated by the use of
1195 * However, if the first two or last two independent 64-bit keys are
1196 * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
1197 * same as DES. Implementers MUST reject keys that exhibit this
1201 static int des3_ede_setkey(void *ctx, const u8 *key,
1202 unsigned int keylen, u32 *flags)
1204 unsigned int i, off;
1205 struct des3_ede_ctx *dctx = ctx;
1207 if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
1208 memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
1211 *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
1215 for (i = 0, off = 0; i < 3; i++, off += DES_EXPKEY_WORDS,
1216 key += DES_KEY_SIZE) {
1217 int ret = setkey(&dctx->expkey[off], key, DES_KEY_SIZE, flags);
1224 static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src)
1226 struct des3_ede_ctx *dctx = ctx;
1228 des_small_fips_encrypt(dctx->expkey, dst, src);
1229 des_small_fips_decrypt(&dctx->expkey[DES_EXPKEY_WORDS], dst, dst);
1230 des_small_fips_encrypt(&dctx->expkey[DES_EXPKEY_WORDS * 2], dst, dst);
1233 static void des3_ede_decrypt(void *ctx, u8 *dst, const u8 *src)
1235 struct des3_ede_ctx *dctx = ctx;
1237 des_small_fips_decrypt(&dctx->expkey[DES_EXPKEY_WORDS * 2], dst, src);
1238 des_small_fips_encrypt(&dctx->expkey[DES_EXPKEY_WORDS], dst, dst);
1239 des_small_fips_decrypt(dctx->expkey, dst, dst);
1242 static struct crypto_alg des_alg = {
1244 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
1245 .cra_blocksize = DES_BLOCK_SIZE,
1246 .cra_ctxsize = sizeof(struct des_ctx),
1247 .cra_module = THIS_MODULE,
1248 .cra_list = LIST_HEAD_INIT(des_alg.cra_list),
1249 .cra_u = { .cipher = {
1250 .cia_min_keysize = DES_KEY_SIZE,
1251 .cia_max_keysize = DES_KEY_SIZE,
1252 .cia_setkey = des_setkey,
1253 .cia_encrypt = des_encrypt,
1254 .cia_decrypt = des_decrypt } }
1257 static struct crypto_alg des3_ede_alg = {
1258 .cra_name = "des3_ede",
1259 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
1260 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
1261 .cra_ctxsize = sizeof(struct des3_ede_ctx),
1262 .cra_module = THIS_MODULE,
1263 .cra_list = LIST_HEAD_INIT(des3_ede_alg.cra_list),
1264 .cra_u = { .cipher = {
1265 .cia_min_keysize = DES3_EDE_KEY_SIZE,
1266 .cia_max_keysize = DES3_EDE_KEY_SIZE,
1267 .cia_setkey = des3_ede_setkey,
1268 .cia_encrypt = des3_ede_encrypt,
1269 .cia_decrypt = des3_ede_decrypt } }
1272 MODULE_ALIAS("des3_ede");
1274 static int __init init(void)
1278 ret = crypto_register_alg(&des_alg);
1282 ret = crypto_register_alg(&des3_ede_alg);
1284 crypto_unregister_alg(&des_alg);
1289 static void __exit fini(void)
1291 crypto_unregister_alg(&des3_ede_alg);
1292 crypto_unregister_alg(&des_alg);
1298 MODULE_LICENSE("GPL");
1299 MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");