diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /crypto/blowfish.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'crypto/blowfish.c')
-rw-r--r-- | crypto/blowfish.c | 478 |
1 files changed, 478 insertions, 0 deletions
diff --git a/crypto/blowfish.c b/crypto/blowfish.c new file mode 100644 index 000000000000..a8b29d54e7d8 --- /dev/null +++ b/crypto/blowfish.c | |||
@@ -0,0 +1,478 @@ | |||
1 | /* | ||
2 | * Cryptographic API. | ||
3 | * | ||
4 | * Blowfish Cipher Algorithm, by Bruce Schneier. | ||
5 | * http://www.counterpane.com/blowfish.html | ||
6 | * | ||
7 | * Adapted from Kerneli implementation. | ||
8 | * | ||
9 | * Copyright (c) Herbert Valerio Riedel <hvr@hvrlab.org> | ||
10 | * Copyright (c) Kyle McMartin <kyle@debian.org> | ||
11 | * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> | ||
12 | * | ||
13 | * This program is free software; you can redistribute it and/or modify | ||
14 | * it under the terms of the GNU General Public License as published by | ||
15 | * the Free Software Foundation; either version 2 of the License, or | ||
16 | * (at your option) any later version. | ||
17 | * | ||
18 | */ | ||
19 | #include <linux/init.h> | ||
20 | #include <linux/module.h> | ||
21 | #include <linux/mm.h> | ||
22 | #include <asm/scatterlist.h> | ||
23 | #include <linux/crypto.h> | ||
24 | |||
25 | #define BF_BLOCK_SIZE 8 | ||
26 | #define BF_MIN_KEY_SIZE 4 | ||
27 | #define BF_MAX_KEY_SIZE 56 | ||
28 | |||
29 | struct bf_ctx { | ||
30 | u32 p[18]; | ||
31 | u32 s[1024]; | ||
32 | }; | ||
33 | |||
34 | static const u32 bf_pbox[16 + 2] = { | ||
35 | 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, | ||
36 | 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, | ||
37 | 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, | ||
38 | 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, | ||
39 | 0x9216d5d9, 0x8979fb1b, | ||
40 | }; | ||
41 | |||
42 | static const u32 bf_sbox[256 * 4] = { | ||
43 | 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, | ||
44 | 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, | ||
45 | 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, | ||
46 | 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, | ||
47 | 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, | ||
48 | 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, | ||
49 | 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, | ||
50 | 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, | ||
51 | 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, | ||
52 | 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, | ||
53 | 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, | ||
54 | 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, | ||
55 | 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, | ||
56 | 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, | ||
57 | 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, | ||
58 | 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, | ||
59 | 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, | ||
60 | 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, | ||
61 | 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, | ||
62 | 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, | ||
63 | 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, | ||
64 | 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, | ||
65 | 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, | ||
66 | 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, | ||
67 | 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, | ||
68 | 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, | ||
69 | 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, | ||
70 | 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, | ||
71 | 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, | ||
72 | 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, | ||
73 | 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, | ||
74 | 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, | ||
75 | 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, | ||
76 | 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, | ||
77 | 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, | ||
78 | 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, | ||
79 | 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, | ||
80 | 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, | ||
81 | 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, | ||
82 | 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, | ||
83 | 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, | ||
84 | 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, | ||
85 | 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, | ||
86 | 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, | ||
87 | 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, | ||
88 | 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, | ||
89 | 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, | ||
90 | 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, | ||
91 | 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, | ||
92 | 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, | ||
93 | 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, | ||
94 | 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, | ||
95 | 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, | ||
96 | 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, | ||
97 | 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, | ||
98 | 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, | ||
99 | 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, | ||
100 | 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, | ||
101 | 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, | ||
102 | 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, | ||
103 | 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, | ||
104 | 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, | ||
105 | 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, | ||
106 | 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, | ||
107 | 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, | ||
108 | 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, | ||
109 | 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, | ||
110 | 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, | ||
111 | 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, | ||
112 | 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, | ||
113 | 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, | ||
114 | 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, | ||
115 | 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, | ||
116 | 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, | ||
117 | 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, | ||
118 | 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, | ||
119 | 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, | ||
120 | 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, | ||
121 | 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, | ||
122 | 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, | ||
123 | 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, | ||
124 | 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, | ||
125 | 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, | ||
126 | 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, | ||
127 | 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, | ||
128 | 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, | ||
129 | 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, | ||
130 | 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, | ||
131 | 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, | ||
132 | 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, | ||
133 | 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, | ||
134 | 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, | ||
135 | 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, | ||
136 | 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, | ||
137 | 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, | ||
138 | 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, | ||
139 | 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, | ||
140 | 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, | ||
141 | 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, | ||
142 | 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, | ||
143 | 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, | ||
144 | 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, | ||
145 | 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, | ||
146 | 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, | ||
147 | 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, | ||
148 | 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, | ||
149 | 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, | ||
150 | 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, | ||
151 | 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, | ||
152 | 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, | ||
153 | 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, | ||
154 | 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, | ||
155 | 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, | ||
156 | 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, | ||
157 | 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, | ||
158 | 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, | ||
159 | 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, | ||
160 | 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, | ||
161 | 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, | ||
162 | 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, | ||
163 | 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, | ||
164 | 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, | ||
165 | 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, | ||
166 | 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, | ||
167 | 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, | ||
168 | 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, | ||
169 | 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, | ||
170 | 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, | ||
171 | 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, | ||
172 | 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, | ||
173 | 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, | ||
174 | 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, | ||
175 | 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, | ||
176 | 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, | ||
177 | 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, | ||
178 | 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, | ||
179 | 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, | ||
180 | 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, | ||
181 | 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, | ||
182 | 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, | ||
183 | 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, | ||
184 | 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, | ||
185 | 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, | ||
186 | 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, | ||
187 | 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, | ||
188 | 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, | ||
189 | 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, | ||
190 | 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, | ||
191 | 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, | ||
192 | 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, | ||
193 | 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, | ||
194 | 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, | ||
195 | 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, | ||
196 | 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, | ||
197 | 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, | ||
198 | 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, | ||
199 | 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, | ||
200 | 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, | ||
201 | 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, | ||
202 | 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, | ||
203 | 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, | ||
204 | 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, | ||
205 | 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, | ||
206 | 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, | ||
207 | 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, | ||
208 | 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, | ||
209 | 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, | ||
210 | 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, | ||
211 | 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, | ||
212 | 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, | ||
213 | 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, | ||
214 | 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, | ||
215 | 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, | ||
216 | 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, | ||
217 | 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, | ||
218 | 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, | ||
219 | 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, | ||
220 | 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, | ||
221 | 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, | ||
222 | 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, | ||
223 | 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, | ||
224 | 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, | ||
225 | 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, | ||
226 | 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, | ||
227 | 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, | ||
228 | 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, | ||
229 | 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, | ||
230 | 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, | ||
231 | 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, | ||
232 | 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, | ||
233 | 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, | ||
234 | 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0, | ||
235 | 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, | ||
236 | 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, | ||
237 | 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, | ||
238 | 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, | ||
239 | 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, | ||
240 | 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, | ||
241 | 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, | ||
242 | 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, | ||
243 | 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, | ||
244 | 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, | ||
245 | 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, | ||
246 | 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, | ||
247 | 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, | ||
248 | 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, | ||
249 | 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, | ||
250 | 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, | ||
251 | 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, | ||
252 | 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, | ||
253 | 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, | ||
254 | 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, | ||
255 | 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, | ||
256 | 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, | ||
257 | 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, | ||
258 | 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, | ||
259 | 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, | ||
260 | 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, | ||
261 | 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, | ||
262 | 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, | ||
263 | 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, | ||
264 | 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, | ||
265 | 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, | ||
266 | 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, | ||
267 | 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, | ||
268 | 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, | ||
269 | 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, | ||
270 | 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, | ||
271 | 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, | ||
272 | 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, | ||
273 | 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, | ||
274 | 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, | ||
275 | 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, | ||
276 | 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, | ||
277 | 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, | ||
278 | 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, | ||
279 | 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, | ||
280 | 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, | ||
281 | 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, | ||
282 | 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, | ||
283 | 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, | ||
284 | 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, | ||
285 | 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, | ||
286 | 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, | ||
287 | 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, | ||
288 | 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, | ||
289 | 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, | ||
290 | 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, | ||
291 | 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, | ||
292 | 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, | ||
293 | 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, | ||
294 | 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, | ||
295 | 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, | ||
296 | 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, | ||
297 | 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, | ||
298 | 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6, | ||
299 | }; | ||
300 | |||
301 | /* | ||
302 | * Round loop unrolling macros, S is a pointer to a S-Box array | ||
303 | * organized in 4 unsigned longs at a row. | ||
304 | */ | ||
305 | #define GET32_3(x) (((x) & 0xff)) | ||
306 | #define GET32_2(x) (((x) >> (8)) & (0xff)) | ||
307 | #define GET32_1(x) (((x) >> (16)) & (0xff)) | ||
308 | #define GET32_0(x) (((x) >> (24)) & (0xff)) | ||
309 | |||
310 | #define bf_F(x) (((S[GET32_0(x)] + S[256 + GET32_1(x)]) ^ \ | ||
311 | S[512 + GET32_2(x)]) + S[768 + GET32_3(x)]) | ||
312 | |||
313 | #define ROUND(a, b, n) b ^= P[n]; a ^= bf_F (b) | ||
314 | |||
315 | /* | ||
316 | * The blowfish encipher, processes 64-bit blocks. | ||
317 | * NOTE: This function MUSTN'T respect endianess | ||
318 | */ | ||
319 | static void encrypt_block(struct bf_ctx *bctx, u32 *dst, u32 *src) | ||
320 | { | ||
321 | const u32 *P = bctx->p; | ||
322 | const u32 *S = bctx->s; | ||
323 | u32 yl = src[0]; | ||
324 | u32 yr = src[1]; | ||
325 | |||
326 | ROUND(yr, yl, 0); | ||
327 | ROUND(yl, yr, 1); | ||
328 | ROUND(yr, yl, 2); | ||
329 | ROUND(yl, yr, 3); | ||
330 | ROUND(yr, yl, 4); | ||
331 | ROUND(yl, yr, 5); | ||
332 | ROUND(yr, yl, 6); | ||
333 | ROUND(yl, yr, 7); | ||
334 | ROUND(yr, yl, 8); | ||
335 | ROUND(yl, yr, 9); | ||
336 | ROUND(yr, yl, 10); | ||
337 | ROUND(yl, yr, 11); | ||
338 | ROUND(yr, yl, 12); | ||
339 | ROUND(yl, yr, 13); | ||
340 | ROUND(yr, yl, 14); | ||
341 | ROUND(yl, yr, 15); | ||
342 | |||
343 | yl ^= P[16]; | ||
344 | yr ^= P[17]; | ||
345 | |||
346 | dst[0] = yr; | ||
347 | dst[1] = yl; | ||
348 | } | ||
349 | |||
350 | static void bf_encrypt(void *ctx, u8 *dst, const u8 *src) | ||
351 | { | ||
352 | const __be32 *in_blk = (const __be32 *)src; | ||
353 | __be32 *const out_blk = (__be32 *)dst; | ||
354 | u32 in32[2], out32[2]; | ||
355 | |||
356 | in32[0] = be32_to_cpu(in_blk[0]); | ||
357 | in32[1] = be32_to_cpu(in_blk[1]); | ||
358 | encrypt_block(ctx, out32, in32); | ||
359 | out_blk[0] = cpu_to_be32(out32[0]); | ||
360 | out_blk[1] = cpu_to_be32(out32[1]); | ||
361 | } | ||
362 | |||
363 | static void bf_decrypt(void *ctx, u8 *dst, const u8 *src) | ||
364 | { | ||
365 | const __be32 *in_blk = (const __be32 *)src; | ||
366 | __be32 *const out_blk = (__be32 *)dst; | ||
367 | const u32 *P = ((struct bf_ctx *)ctx)->p; | ||
368 | const u32 *S = ((struct bf_ctx *)ctx)->s; | ||
369 | u32 yl = be32_to_cpu(in_blk[0]); | ||
370 | u32 yr = be32_to_cpu(in_blk[1]); | ||
371 | |||
372 | ROUND(yr, yl, 17); | ||
373 | ROUND(yl, yr, 16); | ||
374 | ROUND(yr, yl, 15); | ||
375 | ROUND(yl, yr, 14); | ||
376 | ROUND(yr, yl, 13); | ||
377 | ROUND(yl, yr, 12); | ||
378 | ROUND(yr, yl, 11); | ||
379 | ROUND(yl, yr, 10); | ||
380 | ROUND(yr, yl, 9); | ||
381 | ROUND(yl, yr, 8); | ||
382 | ROUND(yr, yl, 7); | ||
383 | ROUND(yl, yr, 6); | ||
384 | ROUND(yr, yl, 5); | ||
385 | ROUND(yl, yr, 4); | ||
386 | ROUND(yr, yl, 3); | ||
387 | ROUND(yl, yr, 2); | ||
388 | |||
389 | yl ^= P[1]; | ||
390 | yr ^= P[0]; | ||
391 | |||
392 | out_blk[0] = cpu_to_be32(yr); | ||
393 | out_blk[1] = cpu_to_be32(yl); | ||
394 | } | ||
395 | |||
396 | /* | ||
397 | * Calculates the blowfish S and P boxes for encryption and decryption. | ||
398 | */ | ||
399 | static int bf_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags) | ||
400 | { | ||
401 | short i, j, count; | ||
402 | u32 data[2], temp; | ||
403 | u32 *P = ((struct bf_ctx *)ctx)->p; | ||
404 | u32 *S = ((struct bf_ctx *)ctx)->s; | ||
405 | |||
406 | /* Copy the initialization s-boxes */ | ||
407 | for (i = 0, count = 0; i < 256; i++) | ||
408 | for (j = 0; j < 4; j++, count++) | ||
409 | S[count] = bf_sbox[count]; | ||
410 | |||
411 | /* Set the p-boxes */ | ||
412 | for (i = 0; i < 16 + 2; i++) | ||
413 | P[i] = bf_pbox[i]; | ||
414 | |||
415 | /* Actual subkey generation */ | ||
416 | for (j = 0, i = 0; i < 16 + 2; i++) { | ||
417 | temp = (((u32 )key[j] << 24) | | ||
418 | ((u32 )key[(j + 1) % keylen] << 16) | | ||
419 | ((u32 )key[(j + 2) % keylen] << 8) | | ||
420 | ((u32 )key[(j + 3) % keylen])); | ||
421 | |||
422 | P[i] = P[i] ^ temp; | ||
423 | j = (j + 4) % keylen; | ||
424 | } | ||
425 | |||
426 | data[0] = 0x00000000; | ||
427 | data[1] = 0x00000000; | ||
428 | |||
429 | for (i = 0; i < 16 + 2; i += 2) { | ||
430 | encrypt_block((struct bf_ctx *)ctx, data, data); | ||
431 | |||
432 | P[i] = data[0]; | ||
433 | P[i + 1] = data[1]; | ||
434 | } | ||
435 | |||
436 | for (i = 0; i < 4; i++) { | ||
437 | for (j = 0, count = i * 256; j < 256; j += 2, count += 2) { | ||
438 | encrypt_block((struct bf_ctx *)ctx, data, data); | ||
439 | |||
440 | S[count] = data[0]; | ||
441 | S[count + 1] = data[1]; | ||
442 | } | ||
443 | } | ||
444 | |||
445 | /* Bruce says not to bother with the weak key check. */ | ||
446 | return 0; | ||
447 | } | ||
448 | |||
449 | static struct crypto_alg alg = { | ||
450 | .cra_name = "blowfish", | ||
451 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER, | ||
452 | .cra_blocksize = BF_BLOCK_SIZE, | ||
453 | .cra_ctxsize = sizeof(struct bf_ctx), | ||
454 | .cra_module = THIS_MODULE, | ||
455 | .cra_list = LIST_HEAD_INIT(alg.cra_list), | ||
456 | .cra_u = { .cipher = { | ||
457 | .cia_min_keysize = BF_MIN_KEY_SIZE, | ||
458 | .cia_max_keysize = BF_MAX_KEY_SIZE, | ||
459 | .cia_setkey = bf_setkey, | ||
460 | .cia_encrypt = bf_encrypt, | ||
461 | .cia_decrypt = bf_decrypt } } | ||
462 | }; | ||
463 | |||
464 | static int __init init(void) | ||
465 | { | ||
466 | return crypto_register_alg(&alg); | ||
467 | } | ||
468 | |||
469 | static void __exit fini(void) | ||
470 | { | ||
471 | crypto_unregister_alg(&alg); | ||
472 | } | ||
473 | |||
474 | module_init(init); | ||
475 | module_exit(fini); | ||
476 | |||
477 | MODULE_LICENSE("GPL"); | ||
478 | MODULE_DESCRIPTION("Blowfish Cipher Algorithm"); | ||