Root/
1 | /* |
2 | * Copyright (C) 2006 |
3 | * NTT (Nippon Telegraph and Telephone Corporation). |
4 | * |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License |
7 | * as published by the Free Software Foundation; either version 2 |
8 | * of the License, or (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
18 | */ |
19 | |
20 | /* |
21 | * Algorithm Specification |
22 | * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html |
23 | */ |
24 | |
25 | /* |
26 | * |
27 | * NOTE --- NOTE --- NOTE --- NOTE |
28 | * This implementation assumes that all memory addresses passed |
29 | * as parameters are four-byte aligned. |
30 | * |
31 | */ |
32 | |
33 | #include <linux/crypto.h> |
34 | #include <linux/errno.h> |
35 | #include <linux/init.h> |
36 | #include <linux/kernel.h> |
37 | #include <linux/module.h> |
38 | #include <linux/bitops.h> |
39 | #include <asm/unaligned.h> |
40 | |
41 | static const u32 camellia_sp1110[256] = { |
42 | 0x70707000,0x82828200,0x2c2c2c00,0xececec00, |
43 | 0xb3b3b300,0x27272700,0xc0c0c000,0xe5e5e500, |
44 | 0xe4e4e400,0x85858500,0x57575700,0x35353500, |
45 | 0xeaeaea00,0x0c0c0c00,0xaeaeae00,0x41414100, |
46 | 0x23232300,0xefefef00,0x6b6b6b00,0x93939300, |
47 | 0x45454500,0x19191900,0xa5a5a500,0x21212100, |
48 | 0xededed00,0x0e0e0e00,0x4f4f4f00,0x4e4e4e00, |
49 | 0x1d1d1d00,0x65656500,0x92929200,0xbdbdbd00, |
50 | 0x86868600,0xb8b8b800,0xafafaf00,0x8f8f8f00, |
51 | 0x7c7c7c00,0xebebeb00,0x1f1f1f00,0xcecece00, |
52 | 0x3e3e3e00,0x30303000,0xdcdcdc00,0x5f5f5f00, |
53 | 0x5e5e5e00,0xc5c5c500,0x0b0b0b00,0x1a1a1a00, |
54 | 0xa6a6a600,0xe1e1e100,0x39393900,0xcacaca00, |
55 | 0xd5d5d500,0x47474700,0x5d5d5d00,0x3d3d3d00, |
56 | 0xd9d9d900,0x01010100,0x5a5a5a00,0xd6d6d600, |
57 | 0x51515100,0x56565600,0x6c6c6c00,0x4d4d4d00, |
58 | 0x8b8b8b00,0x0d0d0d00,0x9a9a9a00,0x66666600, |
59 | 0xfbfbfb00,0xcccccc00,0xb0b0b000,0x2d2d2d00, |
60 | 0x74747400,0x12121200,0x2b2b2b00,0x20202000, |
61 | 0xf0f0f000,0xb1b1b100,0x84848400,0x99999900, |
62 | 0xdfdfdf00,0x4c4c4c00,0xcbcbcb00,0xc2c2c200, |
63 | 0x34343400,0x7e7e7e00,0x76767600,0x05050500, |
64 | 0x6d6d6d00,0xb7b7b700,0xa9a9a900,0x31313100, |
65 | 0xd1d1d100,0x17171700,0x04040400,0xd7d7d700, |
66 | 0x14141400,0x58585800,0x3a3a3a00,0x61616100, |
67 | 0xdedede00,0x1b1b1b00,0x11111100,0x1c1c1c00, |
68 | 0x32323200,0x0f0f0f00,0x9c9c9c00,0x16161600, |
69 | 0x53535300,0x18181800,0xf2f2f200,0x22222200, |
70 | 0xfefefe00,0x44444400,0xcfcfcf00,0xb2b2b200, |
71 | 0xc3c3c300,0xb5b5b500,0x7a7a7a00,0x91919100, |
72 | 0x24242400,0x08080800,0xe8e8e800,0xa8a8a800, |
73 | 0x60606000,0xfcfcfc00,0x69696900,0x50505000, |
74 | 0xaaaaaa00,0xd0d0d000,0xa0a0a000,0x7d7d7d00, |
75 | 0xa1a1a100,0x89898900,0x62626200,0x97979700, |
76 | 0x54545400,0x5b5b5b00,0x1e1e1e00,0x95959500, |
77 | 0xe0e0e000,0xffffff00,0x64646400,0xd2d2d200, |
78 | 0x10101000,0xc4c4c400,0x00000000,0x48484800, |
79 | 0xa3a3a300,0xf7f7f700,0x75757500,0xdbdbdb00, |
80 | 0x8a8a8a00,0x03030300,0xe6e6e600,0xdadada00, |
81 | 0x09090900,0x3f3f3f00,0xdddddd00,0x94949400, |
82 | 0x87878700,0x5c5c5c00,0x83838300,0x02020200, |
83 | 0xcdcdcd00,0x4a4a4a00,0x90909000,0x33333300, |
84 | 0x73737300,0x67676700,0xf6f6f600,0xf3f3f300, |
85 | 0x9d9d9d00,0x7f7f7f00,0xbfbfbf00,0xe2e2e200, |
86 | 0x52525200,0x9b9b9b00,0xd8d8d800,0x26262600, |
87 | 0xc8c8c800,0x37373700,0xc6c6c600,0x3b3b3b00, |
88 | 0x81818100,0x96969600,0x6f6f6f00,0x4b4b4b00, |
89 | 0x13131300,0xbebebe00,0x63636300,0x2e2e2e00, |
90 | 0xe9e9e900,0x79797900,0xa7a7a700,0x8c8c8c00, |
91 | 0x9f9f9f00,0x6e6e6e00,0xbcbcbc00,0x8e8e8e00, |
92 | 0x29292900,0xf5f5f500,0xf9f9f900,0xb6b6b600, |
93 | 0x2f2f2f00,0xfdfdfd00,0xb4b4b400,0x59595900, |
94 | 0x78787800,0x98989800,0x06060600,0x6a6a6a00, |
95 | 0xe7e7e700,0x46464600,0x71717100,0xbababa00, |
96 | 0xd4d4d400,0x25252500,0xababab00,0x42424200, |
97 | 0x88888800,0xa2a2a200,0x8d8d8d00,0xfafafa00, |
98 | 0x72727200,0x07070700,0xb9b9b900,0x55555500, |
99 | 0xf8f8f800,0xeeeeee00,0xacacac00,0x0a0a0a00, |
100 | 0x36363600,0x49494900,0x2a2a2a00,0x68686800, |
101 | 0x3c3c3c00,0x38383800,0xf1f1f100,0xa4a4a400, |
102 | 0x40404000,0x28282800,0xd3d3d300,0x7b7b7b00, |
103 | 0xbbbbbb00,0xc9c9c900,0x43434300,0xc1c1c100, |
104 | 0x15151500,0xe3e3e300,0xadadad00,0xf4f4f400, |
105 | 0x77777700,0xc7c7c700,0x80808000,0x9e9e9e00, |
106 | }; |
107 | |
108 | static const u32 camellia_sp0222[256] = { |
109 | 0x00e0e0e0,0x00050505,0x00585858,0x00d9d9d9, |
110 | 0x00676767,0x004e4e4e,0x00818181,0x00cbcbcb, |
111 | 0x00c9c9c9,0x000b0b0b,0x00aeaeae,0x006a6a6a, |
112 | 0x00d5d5d5,0x00181818,0x005d5d5d,0x00828282, |
113 | 0x00464646,0x00dfdfdf,0x00d6d6d6,0x00272727, |
114 | 0x008a8a8a,0x00323232,0x004b4b4b,0x00424242, |
115 | 0x00dbdbdb,0x001c1c1c,0x009e9e9e,0x009c9c9c, |
116 | 0x003a3a3a,0x00cacaca,0x00252525,0x007b7b7b, |
117 | 0x000d0d0d,0x00717171,0x005f5f5f,0x001f1f1f, |
118 | 0x00f8f8f8,0x00d7d7d7,0x003e3e3e,0x009d9d9d, |
119 | 0x007c7c7c,0x00606060,0x00b9b9b9,0x00bebebe, |
120 | 0x00bcbcbc,0x008b8b8b,0x00161616,0x00343434, |
121 | 0x004d4d4d,0x00c3c3c3,0x00727272,0x00959595, |
122 | 0x00ababab,0x008e8e8e,0x00bababa,0x007a7a7a, |
123 | 0x00b3b3b3,0x00020202,0x00b4b4b4,0x00adadad, |
124 | 0x00a2a2a2,0x00acacac,0x00d8d8d8,0x009a9a9a, |
125 | 0x00171717,0x001a1a1a,0x00353535,0x00cccccc, |
126 | 0x00f7f7f7,0x00999999,0x00616161,0x005a5a5a, |
127 | 0x00e8e8e8,0x00242424,0x00565656,0x00404040, |
128 | 0x00e1e1e1,0x00636363,0x00090909,0x00333333, |
129 | 0x00bfbfbf,0x00989898,0x00979797,0x00858585, |
130 | 0x00686868,0x00fcfcfc,0x00ececec,0x000a0a0a, |
131 | 0x00dadada,0x006f6f6f,0x00535353,0x00626262, |
132 | 0x00a3a3a3,0x002e2e2e,0x00080808,0x00afafaf, |
133 | 0x00282828,0x00b0b0b0,0x00747474,0x00c2c2c2, |
134 | 0x00bdbdbd,0x00363636,0x00222222,0x00383838, |
135 | 0x00646464,0x001e1e1e,0x00393939,0x002c2c2c, |
136 | 0x00a6a6a6,0x00303030,0x00e5e5e5,0x00444444, |
137 | 0x00fdfdfd,0x00888888,0x009f9f9f,0x00656565, |
138 | 0x00878787,0x006b6b6b,0x00f4f4f4,0x00232323, |
139 | 0x00484848,0x00101010,0x00d1d1d1,0x00515151, |
140 | 0x00c0c0c0,0x00f9f9f9,0x00d2d2d2,0x00a0a0a0, |
141 | 0x00555555,0x00a1a1a1,0x00414141,0x00fafafa, |
142 | 0x00434343,0x00131313,0x00c4c4c4,0x002f2f2f, |
143 | 0x00a8a8a8,0x00b6b6b6,0x003c3c3c,0x002b2b2b, |
144 | 0x00c1c1c1,0x00ffffff,0x00c8c8c8,0x00a5a5a5, |
145 | 0x00202020,0x00898989,0x00000000,0x00909090, |
146 | 0x00474747,0x00efefef,0x00eaeaea,0x00b7b7b7, |
147 | 0x00151515,0x00060606,0x00cdcdcd,0x00b5b5b5, |
148 | 0x00121212,0x007e7e7e,0x00bbbbbb,0x00292929, |
149 | 0x000f0f0f,0x00b8b8b8,0x00070707,0x00040404, |
150 | 0x009b9b9b,0x00949494,0x00212121,0x00666666, |
151 | 0x00e6e6e6,0x00cecece,0x00ededed,0x00e7e7e7, |
152 | 0x003b3b3b,0x00fefefe,0x007f7f7f,0x00c5c5c5, |
153 | 0x00a4a4a4,0x00373737,0x00b1b1b1,0x004c4c4c, |
154 | 0x00919191,0x006e6e6e,0x008d8d8d,0x00767676, |
155 | 0x00030303,0x002d2d2d,0x00dedede,0x00969696, |
156 | 0x00262626,0x007d7d7d,0x00c6c6c6,0x005c5c5c, |
157 | 0x00d3d3d3,0x00f2f2f2,0x004f4f4f,0x00191919, |
158 | 0x003f3f3f,0x00dcdcdc,0x00797979,0x001d1d1d, |
159 | 0x00525252,0x00ebebeb,0x00f3f3f3,0x006d6d6d, |
160 | 0x005e5e5e,0x00fbfbfb,0x00696969,0x00b2b2b2, |
161 | 0x00f0f0f0,0x00313131,0x000c0c0c,0x00d4d4d4, |
162 | 0x00cfcfcf,0x008c8c8c,0x00e2e2e2,0x00757575, |
163 | 0x00a9a9a9,0x004a4a4a,0x00575757,0x00848484, |
164 | 0x00111111,0x00454545,0x001b1b1b,0x00f5f5f5, |
165 | 0x00e4e4e4,0x000e0e0e,0x00737373,0x00aaaaaa, |
166 | 0x00f1f1f1,0x00dddddd,0x00595959,0x00141414, |
167 | 0x006c6c6c,0x00929292,0x00545454,0x00d0d0d0, |
168 | 0x00787878,0x00707070,0x00e3e3e3,0x00494949, |
169 | 0x00808080,0x00505050,0x00a7a7a7,0x00f6f6f6, |
170 | 0x00777777,0x00939393,0x00868686,0x00838383, |
171 | 0x002a2a2a,0x00c7c7c7,0x005b5b5b,0x00e9e9e9, |
172 | 0x00eeeeee,0x008f8f8f,0x00010101,0x003d3d3d, |
173 | }; |
174 | |
175 | static const u32 camellia_sp3033[256] = { |
176 | 0x38003838,0x41004141,0x16001616,0x76007676, |
177 | 0xd900d9d9,0x93009393,0x60006060,0xf200f2f2, |
178 | 0x72007272,0xc200c2c2,0xab00abab,0x9a009a9a, |
179 | 0x75007575,0x06000606,0x57005757,0xa000a0a0, |
180 | 0x91009191,0xf700f7f7,0xb500b5b5,0xc900c9c9, |
181 | 0xa200a2a2,0x8c008c8c,0xd200d2d2,0x90009090, |
182 | 0xf600f6f6,0x07000707,0xa700a7a7,0x27002727, |
183 | 0x8e008e8e,0xb200b2b2,0x49004949,0xde00dede, |
184 | 0x43004343,0x5c005c5c,0xd700d7d7,0xc700c7c7, |
185 | 0x3e003e3e,0xf500f5f5,0x8f008f8f,0x67006767, |
186 | 0x1f001f1f,0x18001818,0x6e006e6e,0xaf00afaf, |
187 | 0x2f002f2f,0xe200e2e2,0x85008585,0x0d000d0d, |
188 | 0x53005353,0xf000f0f0,0x9c009c9c,0x65006565, |
189 | 0xea00eaea,0xa300a3a3,0xae00aeae,0x9e009e9e, |
190 | 0xec00ecec,0x80008080,0x2d002d2d,0x6b006b6b, |
191 | 0xa800a8a8,0x2b002b2b,0x36003636,0xa600a6a6, |
192 | 0xc500c5c5,0x86008686,0x4d004d4d,0x33003333, |
193 | 0xfd00fdfd,0x66006666,0x58005858,0x96009696, |
194 | 0x3a003a3a,0x09000909,0x95009595,0x10001010, |
195 | 0x78007878,0xd800d8d8,0x42004242,0xcc00cccc, |
196 | 0xef00efef,0x26002626,0xe500e5e5,0x61006161, |
197 | 0x1a001a1a,0x3f003f3f,0x3b003b3b,0x82008282, |
198 | 0xb600b6b6,0xdb00dbdb,0xd400d4d4,0x98009898, |
199 | 0xe800e8e8,0x8b008b8b,0x02000202,0xeb00ebeb, |
200 | 0x0a000a0a,0x2c002c2c,0x1d001d1d,0xb000b0b0, |
201 | 0x6f006f6f,0x8d008d8d,0x88008888,0x0e000e0e, |
202 | 0x19001919,0x87008787,0x4e004e4e,0x0b000b0b, |
203 | 0xa900a9a9,0x0c000c0c,0x79007979,0x11001111, |
204 | 0x7f007f7f,0x22002222,0xe700e7e7,0x59005959, |
205 | 0xe100e1e1,0xda00dada,0x3d003d3d,0xc800c8c8, |
206 | 0x12001212,0x04000404,0x74007474,0x54005454, |
207 | 0x30003030,0x7e007e7e,0xb400b4b4,0x28002828, |
208 | 0x55005555,0x68006868,0x50005050,0xbe00bebe, |
209 | 0xd000d0d0,0xc400c4c4,0x31003131,0xcb00cbcb, |
210 | 0x2a002a2a,0xad00adad,0x0f000f0f,0xca00caca, |
211 | 0x70007070,0xff00ffff,0x32003232,0x69006969, |
212 | 0x08000808,0x62006262,0x00000000,0x24002424, |
213 | 0xd100d1d1,0xfb00fbfb,0xba00baba,0xed00eded, |
214 | 0x45004545,0x81008181,0x73007373,0x6d006d6d, |
215 | 0x84008484,0x9f009f9f,0xee00eeee,0x4a004a4a, |
216 | 0xc300c3c3,0x2e002e2e,0xc100c1c1,0x01000101, |
217 | 0xe600e6e6,0x25002525,0x48004848,0x99009999, |
218 | 0xb900b9b9,0xb300b3b3,0x7b007b7b,0xf900f9f9, |
219 | 0xce00cece,0xbf00bfbf,0xdf00dfdf,0x71007171, |
220 | 0x29002929,0xcd00cdcd,0x6c006c6c,0x13001313, |
221 | 0x64006464,0x9b009b9b,0x63006363,0x9d009d9d, |
222 | 0xc000c0c0,0x4b004b4b,0xb700b7b7,0xa500a5a5, |
223 | 0x89008989,0x5f005f5f,0xb100b1b1,0x17001717, |
224 | 0xf400f4f4,0xbc00bcbc,0xd300d3d3,0x46004646, |
225 | 0xcf00cfcf,0x37003737,0x5e005e5e,0x47004747, |
226 | 0x94009494,0xfa00fafa,0xfc00fcfc,0x5b005b5b, |
227 | 0x97009797,0xfe00fefe,0x5a005a5a,0xac00acac, |
228 | 0x3c003c3c,0x4c004c4c,0x03000303,0x35003535, |
229 | 0xf300f3f3,0x23002323,0xb800b8b8,0x5d005d5d, |
230 | 0x6a006a6a,0x92009292,0xd500d5d5,0x21002121, |
231 | 0x44004444,0x51005151,0xc600c6c6,0x7d007d7d, |
232 | 0x39003939,0x83008383,0xdc00dcdc,0xaa00aaaa, |
233 | 0x7c007c7c,0x77007777,0x56005656,0x05000505, |
234 | 0x1b001b1b,0xa400a4a4,0x15001515,0x34003434, |
235 | 0x1e001e1e,0x1c001c1c,0xf800f8f8,0x52005252, |
236 | 0x20002020,0x14001414,0xe900e9e9,0xbd00bdbd, |
237 | 0xdd00dddd,0xe400e4e4,0xa100a1a1,0xe000e0e0, |
238 | 0x8a008a8a,0xf100f1f1,0xd600d6d6,0x7a007a7a, |
239 | 0xbb00bbbb,0xe300e3e3,0x40004040,0x4f004f4f, |
240 | }; |
241 | |
242 | static const u32 camellia_sp4404[256] = { |
243 | 0x70700070,0x2c2c002c,0xb3b300b3,0xc0c000c0, |
244 | 0xe4e400e4,0x57570057,0xeaea00ea,0xaeae00ae, |
245 | 0x23230023,0x6b6b006b,0x45450045,0xa5a500a5, |
246 | 0xeded00ed,0x4f4f004f,0x1d1d001d,0x92920092, |
247 | 0x86860086,0xafaf00af,0x7c7c007c,0x1f1f001f, |
248 | 0x3e3e003e,0xdcdc00dc,0x5e5e005e,0x0b0b000b, |
249 | 0xa6a600a6,0x39390039,0xd5d500d5,0x5d5d005d, |
250 | 0xd9d900d9,0x5a5a005a,0x51510051,0x6c6c006c, |
251 | 0x8b8b008b,0x9a9a009a,0xfbfb00fb,0xb0b000b0, |
252 | 0x74740074,0x2b2b002b,0xf0f000f0,0x84840084, |
253 | 0xdfdf00df,0xcbcb00cb,0x34340034,0x76760076, |
254 | 0x6d6d006d,0xa9a900a9,0xd1d100d1,0x04040004, |
255 | 0x14140014,0x3a3a003a,0xdede00de,0x11110011, |
256 | 0x32320032,0x9c9c009c,0x53530053,0xf2f200f2, |
257 | 0xfefe00fe,0xcfcf00cf,0xc3c300c3,0x7a7a007a, |
258 | 0x24240024,0xe8e800e8,0x60600060,0x69690069, |
259 | 0xaaaa00aa,0xa0a000a0,0xa1a100a1,0x62620062, |
260 | 0x54540054,0x1e1e001e,0xe0e000e0,0x64640064, |
261 | 0x10100010,0x00000000,0xa3a300a3,0x75750075, |
262 | 0x8a8a008a,0xe6e600e6,0x09090009,0xdddd00dd, |
263 | 0x87870087,0x83830083,0xcdcd00cd,0x90900090, |
264 | 0x73730073,0xf6f600f6,0x9d9d009d,0xbfbf00bf, |
265 | 0x52520052,0xd8d800d8,0xc8c800c8,0xc6c600c6, |
266 | 0x81810081,0x6f6f006f,0x13130013,0x63630063, |
267 | 0xe9e900e9,0xa7a700a7,0x9f9f009f,0xbcbc00bc, |
268 | 0x29290029,0xf9f900f9,0x2f2f002f,0xb4b400b4, |
269 | 0x78780078,0x06060006,0xe7e700e7,0x71710071, |
270 | 0xd4d400d4,0xabab00ab,0x88880088,0x8d8d008d, |
271 | 0x72720072,0xb9b900b9,0xf8f800f8,0xacac00ac, |
272 | 0x36360036,0x2a2a002a,0x3c3c003c,0xf1f100f1, |
273 | 0x40400040,0xd3d300d3,0xbbbb00bb,0x43430043, |
274 | 0x15150015,0xadad00ad,0x77770077,0x80800080, |
275 | 0x82820082,0xecec00ec,0x27270027,0xe5e500e5, |
276 | 0x85850085,0x35350035,0x0c0c000c,0x41410041, |
277 | 0xefef00ef,0x93930093,0x19190019,0x21210021, |
278 | 0x0e0e000e,0x4e4e004e,0x65650065,0xbdbd00bd, |
279 | 0xb8b800b8,0x8f8f008f,0xebeb00eb,0xcece00ce, |
280 | 0x30300030,0x5f5f005f,0xc5c500c5,0x1a1a001a, |
281 | 0xe1e100e1,0xcaca00ca,0x47470047,0x3d3d003d, |
282 | 0x01010001,0xd6d600d6,0x56560056,0x4d4d004d, |
283 | 0x0d0d000d,0x66660066,0xcccc00cc,0x2d2d002d, |
284 | 0x12120012,0x20200020,0xb1b100b1,0x99990099, |
285 | 0x4c4c004c,0xc2c200c2,0x7e7e007e,0x05050005, |
286 | 0xb7b700b7,0x31310031,0x17170017,0xd7d700d7, |
287 | 0x58580058,0x61610061,0x1b1b001b,0x1c1c001c, |
288 | 0x0f0f000f,0x16160016,0x18180018,0x22220022, |
289 | 0x44440044,0xb2b200b2,0xb5b500b5,0x91910091, |
290 | 0x08080008,0xa8a800a8,0xfcfc00fc,0x50500050, |
291 | 0xd0d000d0,0x7d7d007d,0x89890089,0x97970097, |
292 | 0x5b5b005b,0x95950095,0xffff00ff,0xd2d200d2, |
293 | 0xc4c400c4,0x48480048,0xf7f700f7,0xdbdb00db, |
294 | 0x03030003,0xdada00da,0x3f3f003f,0x94940094, |
295 | 0x5c5c005c,0x02020002,0x4a4a004a,0x33330033, |
296 | 0x67670067,0xf3f300f3,0x7f7f007f,0xe2e200e2, |
297 | 0x9b9b009b,0x26260026,0x37370037,0x3b3b003b, |
298 | 0x96960096,0x4b4b004b,0xbebe00be,0x2e2e002e, |
299 | 0x79790079,0x8c8c008c,0x6e6e006e,0x8e8e008e, |
300 | 0xf5f500f5,0xb6b600b6,0xfdfd00fd,0x59590059, |
301 | 0x98980098,0x6a6a006a,0x46460046,0xbaba00ba, |
302 | 0x25250025,0x42420042,0xa2a200a2,0xfafa00fa, |
303 | 0x07070007,0x55550055,0xeeee00ee,0x0a0a000a, |
304 | 0x49490049,0x68680068,0x38380038,0xa4a400a4, |
305 | 0x28280028,0x7b7b007b,0xc9c900c9,0xc1c100c1, |
306 | 0xe3e300e3,0xf4f400f4,0xc7c700c7,0x9e9e009e, |
307 | }; |
308 | |
309 | |
310 | #define CAMELLIA_MIN_KEY_SIZE 16 |
311 | #define CAMELLIA_MAX_KEY_SIZE 32 |
312 | #define CAMELLIA_BLOCK_SIZE 16 |
313 | #define CAMELLIA_TABLE_BYTE_LEN 272 |
314 | |
315 | /* |
316 | * NB: L and R below stand for 'left' and 'right' as in written numbers. |
317 | * That is, in (xxxL,xxxR) pair xxxL holds most significant digits, |
318 | * _not_ least significant ones! |
319 | */ |
320 | |
321 | |
322 | /* key constants */ |
323 | |
324 | #define CAMELLIA_SIGMA1L (0xA09E667FL) |
325 | #define CAMELLIA_SIGMA1R (0x3BCC908BL) |
326 | #define CAMELLIA_SIGMA2L (0xB67AE858L) |
327 | #define CAMELLIA_SIGMA2R (0x4CAA73B2L) |
328 | #define CAMELLIA_SIGMA3L (0xC6EF372FL) |
329 | #define CAMELLIA_SIGMA3R (0xE94F82BEL) |
330 | #define CAMELLIA_SIGMA4L (0x54FF53A5L) |
331 | #define CAMELLIA_SIGMA4R (0xF1D36F1CL) |
332 | #define CAMELLIA_SIGMA5L (0x10E527FAL) |
333 | #define CAMELLIA_SIGMA5R (0xDE682D1DL) |
334 | #define CAMELLIA_SIGMA6L (0xB05688C2L) |
335 | #define CAMELLIA_SIGMA6R (0xB3E6C1FDL) |
336 | |
337 | /* |
338 | * macros |
339 | */ |
340 | #define ROLDQ(ll, lr, rl, rr, w0, w1, bits) \ |
341 | do { \ |
342 | w0 = ll; \ |
343 | ll = (ll << bits) + (lr >> (32 - bits)); \ |
344 | lr = (lr << bits) + (rl >> (32 - bits)); \ |
345 | rl = (rl << bits) + (rr >> (32 - bits)); \ |
346 | rr = (rr << bits) + (w0 >> (32 - bits)); \ |
347 | } while(0) |
348 | |
349 | #define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) \ |
350 | do { \ |
351 | w0 = ll; \ |
352 | w1 = lr; \ |
353 | ll = (lr << (bits - 32)) + (rl >> (64 - bits)); \ |
354 | lr = (rl << (bits - 32)) + (rr >> (64 - bits)); \ |
355 | rl = (rr << (bits - 32)) + (w0 >> (64 - bits)); \ |
356 | rr = (w0 << (bits - 32)) + (w1 >> (64 - bits)); \ |
357 | } while(0) |
358 | |
359 | #define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) \ |
360 | do { \ |
361 | il = xl ^ kl; \ |
362 | ir = xr ^ kr; \ |
363 | t0 = il >> 16; \ |
364 | t1 = ir >> 16; \ |
365 | yl = camellia_sp1110[(u8)(ir )] \ |
366 | ^ camellia_sp0222[ (t1 >> 8)] \ |
367 | ^ camellia_sp3033[(u8)(t1 )] \ |
368 | ^ camellia_sp4404[(u8)(ir >> 8)]; \ |
369 | yr = camellia_sp1110[ (t0 >> 8)] \ |
370 | ^ camellia_sp0222[(u8)(t0 )] \ |
371 | ^ camellia_sp3033[(u8)(il >> 8)] \ |
372 | ^ camellia_sp4404[(u8)(il )]; \ |
373 | yl ^= yr; \ |
374 | yr = ror32(yr, 8); \ |
375 | yr ^= yl; \ |
376 | } while(0) |
377 | |
378 | #define SUBKEY_L(INDEX) (subkey[(INDEX)*2]) |
379 | #define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1]) |
380 | |
381 | static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max) |
382 | { |
383 | u32 dw, tl, tr; |
384 | u32 kw4l, kw4r; |
385 | int i; |
386 | |
387 | /* absorb kw2 to other subkeys */ |
388 | /* round 2 */ |
389 | subL[3] ^= subL[1]; subR[3] ^= subR[1]; |
390 | /* round 4 */ |
391 | subL[5] ^= subL[1]; subR[5] ^= subR[1]; |
392 | /* round 6 */ |
393 | subL[7] ^= subL[1]; subR[7] ^= subR[1]; |
394 | subL[1] ^= subR[1] & ~subR[9]; |
395 | dw = subL[1] & subL[9], |
396 | subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl2) */ |
397 | /* round 8 */ |
398 | subL[11] ^= subL[1]; subR[11] ^= subR[1]; |
399 | /* round 10 */ |
400 | subL[13] ^= subL[1]; subR[13] ^= subR[1]; |
401 | /* round 12 */ |
402 | subL[15] ^= subL[1]; subR[15] ^= subR[1]; |
403 | subL[1] ^= subR[1] & ~subR[17]; |
404 | dw = subL[1] & subL[17], |
405 | subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl4) */ |
406 | /* round 14 */ |
407 | subL[19] ^= subL[1]; subR[19] ^= subR[1]; |
408 | /* round 16 */ |
409 | subL[21] ^= subL[1]; subR[21] ^= subR[1]; |
410 | /* round 18 */ |
411 | subL[23] ^= subL[1]; subR[23] ^= subR[1]; |
412 | if (max == 24) { |
413 | /* kw3 */ |
414 | subL[24] ^= subL[1]; subR[24] ^= subR[1]; |
415 | |
416 | /* absorb kw4 to other subkeys */ |
417 | kw4l = subL[25]; kw4r = subR[25]; |
418 | } else { |
419 | subL[1] ^= subR[1] & ~subR[25]; |
420 | dw = subL[1] & subL[25], |
421 | subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl6) */ |
422 | /* round 20 */ |
423 | subL[27] ^= subL[1]; subR[27] ^= subR[1]; |
424 | /* round 22 */ |
425 | subL[29] ^= subL[1]; subR[29] ^= subR[1]; |
426 | /* round 24 */ |
427 | subL[31] ^= subL[1]; subR[31] ^= subR[1]; |
428 | /* kw3 */ |
429 | subL[32] ^= subL[1]; subR[32] ^= subR[1]; |
430 | |
431 | /* absorb kw4 to other subkeys */ |
432 | kw4l = subL[33]; kw4r = subR[33]; |
433 | /* round 23 */ |
434 | subL[30] ^= kw4l; subR[30] ^= kw4r; |
435 | /* round 21 */ |
436 | subL[28] ^= kw4l; subR[28] ^= kw4r; |
437 | /* round 19 */ |
438 | subL[26] ^= kw4l; subR[26] ^= kw4r; |
439 | kw4l ^= kw4r & ~subR[24]; |
440 | dw = kw4l & subL[24], |
441 | kw4r ^= rol32(dw, 1); /* modified for FL(kl5) */ |
442 | } |
443 | /* round 17 */ |
444 | subL[22] ^= kw4l; subR[22] ^= kw4r; |
445 | /* round 15 */ |
446 | subL[20] ^= kw4l; subR[20] ^= kw4r; |
447 | /* round 13 */ |
448 | subL[18] ^= kw4l; subR[18] ^= kw4r; |
449 | kw4l ^= kw4r & ~subR[16]; |
450 | dw = kw4l & subL[16], |
451 | kw4r ^= rol32(dw, 1); /* modified for FL(kl3) */ |
452 | /* round 11 */ |
453 | subL[14] ^= kw4l; subR[14] ^= kw4r; |
454 | /* round 9 */ |
455 | subL[12] ^= kw4l; subR[12] ^= kw4r; |
456 | /* round 7 */ |
457 | subL[10] ^= kw4l; subR[10] ^= kw4r; |
458 | kw4l ^= kw4r & ~subR[8]; |
459 | dw = kw4l & subL[8], |
460 | kw4r ^= rol32(dw, 1); /* modified for FL(kl1) */ |
461 | /* round 5 */ |
462 | subL[6] ^= kw4l; subR[6] ^= kw4r; |
463 | /* round 3 */ |
464 | subL[4] ^= kw4l; subR[4] ^= kw4r; |
465 | /* round 1 */ |
466 | subL[2] ^= kw4l; subR[2] ^= kw4r; |
467 | /* kw1 */ |
468 | subL[0] ^= kw4l; subR[0] ^= kw4r; |
469 | |
470 | /* key XOR is end of F-function */ |
471 | SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */ |
472 | SUBKEY_R(0) = subR[0] ^ subR[2]; |
473 | SUBKEY_L(2) = subL[3]; /* round 1 */ |
474 | SUBKEY_R(2) = subR[3]; |
475 | SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */ |
476 | SUBKEY_R(3) = subR[2] ^ subR[4]; |
477 | SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */ |
478 | SUBKEY_R(4) = subR[3] ^ subR[5]; |
479 | SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */ |
480 | SUBKEY_R(5) = subR[4] ^ subR[6]; |
481 | SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */ |
482 | SUBKEY_R(6) = subR[5] ^ subR[7]; |
483 | tl = subL[10] ^ (subR[10] & ~subR[8]); |
484 | dw = tl & subL[8], /* FL(kl1) */ |
485 | tr = subR[10] ^ rol32(dw, 1); |
486 | SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */ |
487 | SUBKEY_R(7) = subR[6] ^ tr; |
488 | SUBKEY_L(8) = subL[8]; /* FL(kl1) */ |
489 | SUBKEY_R(8) = subR[8]; |
490 | SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */ |
491 | SUBKEY_R(9) = subR[9]; |
492 | tl = subL[7] ^ (subR[7] & ~subR[9]); |
493 | dw = tl & subL[9], /* FLinv(kl2) */ |
494 | tr = subR[7] ^ rol32(dw, 1); |
495 | SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */ |
496 | SUBKEY_R(10) = tr ^ subR[11]; |
497 | SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */ |
498 | SUBKEY_R(11) = subR[10] ^ subR[12]; |
499 | SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */ |
500 | SUBKEY_R(12) = subR[11] ^ subR[13]; |
501 | SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */ |
502 | SUBKEY_R(13) = subR[12] ^ subR[14]; |
503 | SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */ |
504 | SUBKEY_R(14) = subR[13] ^ subR[15]; |
505 | tl = subL[18] ^ (subR[18] & ~subR[16]); |
506 | dw = tl & subL[16], /* FL(kl3) */ |
507 | tr = subR[18] ^ rol32(dw, 1); |
508 | SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */ |
509 | SUBKEY_R(15) = subR[14] ^ tr; |
510 | SUBKEY_L(16) = subL[16]; /* FL(kl3) */ |
511 | SUBKEY_R(16) = subR[16]; |
512 | SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */ |
513 | SUBKEY_R(17) = subR[17]; |
514 | tl = subL[15] ^ (subR[15] & ~subR[17]); |
515 | dw = tl & subL[17], /* FLinv(kl4) */ |
516 | tr = subR[15] ^ rol32(dw, 1); |
517 | SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */ |
518 | SUBKEY_R(18) = tr ^ subR[19]; |
519 | SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */ |
520 | SUBKEY_R(19) = subR[18] ^ subR[20]; |
521 | SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */ |
522 | SUBKEY_R(20) = subR[19] ^ subR[21]; |
523 | SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */ |
524 | SUBKEY_R(21) = subR[20] ^ subR[22]; |
525 | SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */ |
526 | SUBKEY_R(22) = subR[21] ^ subR[23]; |
527 | if (max == 24) { |
528 | SUBKEY_L(23) = subL[22]; /* round 18 */ |
529 | SUBKEY_R(23) = subR[22]; |
530 | SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */ |
531 | SUBKEY_R(24) = subR[24] ^ subR[23]; |
532 | } else { |
533 | tl = subL[26] ^ (subR[26] & ~subR[24]); |
534 | dw = tl & subL[24], /* FL(kl5) */ |
535 | tr = subR[26] ^ rol32(dw, 1); |
536 | SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */ |
537 | SUBKEY_R(23) = subR[22] ^ tr; |
538 | SUBKEY_L(24) = subL[24]; /* FL(kl5) */ |
539 | SUBKEY_R(24) = subR[24]; |
540 | SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */ |
541 | SUBKEY_R(25) = subR[25]; |
542 | tl = subL[23] ^ (subR[23] & ~subR[25]); |
543 | dw = tl & subL[25], /* FLinv(kl6) */ |
544 | tr = subR[23] ^ rol32(dw, 1); |
545 | SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */ |
546 | SUBKEY_R(26) = tr ^ subR[27]; |
547 | SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */ |
548 | SUBKEY_R(27) = subR[26] ^ subR[28]; |
549 | SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */ |
550 | SUBKEY_R(28) = subR[27] ^ subR[29]; |
551 | SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */ |
552 | SUBKEY_R(29) = subR[28] ^ subR[30]; |
553 | SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */ |
554 | SUBKEY_R(30) = subR[29] ^ subR[31]; |
555 | SUBKEY_L(31) = subL[30]; /* round 24 */ |
556 | SUBKEY_R(31) = subR[30]; |
557 | SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */ |
558 | SUBKEY_R(32) = subR[32] ^ subR[31]; |
559 | } |
560 | |
561 | /* apply the inverse of the last half of P-function */ |
562 | i = 2; |
563 | do { |
564 | dw = SUBKEY_L(i + 0) ^ SUBKEY_R(i + 0); dw = rol32(dw, 8);/* round 1 */ |
565 | SUBKEY_R(i + 0) = SUBKEY_L(i + 0) ^ dw; SUBKEY_L(i + 0) = dw; |
566 | dw = SUBKEY_L(i + 1) ^ SUBKEY_R(i + 1); dw = rol32(dw, 8);/* round 2 */ |
567 | SUBKEY_R(i + 1) = SUBKEY_L(i + 1) ^ dw; SUBKEY_L(i + 1) = dw; |
568 | dw = SUBKEY_L(i + 2) ^ SUBKEY_R(i + 2); dw = rol32(dw, 8);/* round 3 */ |
569 | SUBKEY_R(i + 2) = SUBKEY_L(i + 2) ^ dw; SUBKEY_L(i + 2) = dw; |
570 | dw = SUBKEY_L(i + 3) ^ SUBKEY_R(i + 3); dw = rol32(dw, 8);/* round 4 */ |
571 | SUBKEY_R(i + 3) = SUBKEY_L(i + 3) ^ dw; SUBKEY_L(i + 3) = dw; |
572 | dw = SUBKEY_L(i + 4) ^ SUBKEY_R(i + 4); dw = rol32(dw, 8);/* round 5 */ |
573 | SUBKEY_R(i + 4) = SUBKEY_L(i + 4) ^ dw; SUBKEY_L(i + 4) = dw; |
574 | dw = SUBKEY_L(i + 5) ^ SUBKEY_R(i + 5); dw = rol32(dw, 8);/* round 6 */ |
575 | SUBKEY_R(i + 5) = SUBKEY_L(i + 5) ^ dw; SUBKEY_L(i + 5) = dw; |
576 | i += 8; |
577 | } while (i < max); |
578 | } |
579 | |
580 | static void camellia_setup128(const unsigned char *key, u32 *subkey) |
581 | { |
582 | u32 kll, klr, krl, krr; |
583 | u32 il, ir, t0, t1, w0, w1; |
584 | u32 subL[26]; |
585 | u32 subR[26]; |
586 | |
587 | /** |
588 | * k == kll || klr || krl || krr (|| is concatenation) |
589 | */ |
590 | kll = get_unaligned_be32(key); |
591 | klr = get_unaligned_be32(key + 4); |
592 | krl = get_unaligned_be32(key + 8); |
593 | krr = get_unaligned_be32(key + 12); |
594 | |
595 | /* generate KL dependent subkeys */ |
596 | /* kw1 */ |
597 | subL[0] = kll; subR[0] = klr; |
598 | /* kw2 */ |
599 | subL[1] = krl; subR[1] = krr; |
600 | /* rotation left shift 15bit */ |
601 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
602 | /* k3 */ |
603 | subL[4] = kll; subR[4] = klr; |
604 | /* k4 */ |
605 | subL[5] = krl; subR[5] = krr; |
606 | /* rotation left shift 15+30bit */ |
607 | ROLDQ(kll, klr, krl, krr, w0, w1, 30); |
608 | /* k7 */ |
609 | subL[10] = kll; subR[10] = klr; |
610 | /* k8 */ |
611 | subL[11] = krl; subR[11] = krr; |
612 | /* rotation left shift 15+30+15bit */ |
613 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
614 | /* k10 */ |
615 | subL[13] = krl; subR[13] = krr; |
616 | /* rotation left shift 15+30+15+17 bit */ |
617 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
618 | /* kl3 */ |
619 | subL[16] = kll; subR[16] = klr; |
620 | /* kl4 */ |
621 | subL[17] = krl; subR[17] = krr; |
622 | /* rotation left shift 15+30+15+17+17 bit */ |
623 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
624 | /* k13 */ |
625 | subL[18] = kll; subR[18] = klr; |
626 | /* k14 */ |
627 | subL[19] = krl; subR[19] = krr; |
628 | /* rotation left shift 15+30+15+17+17+17 bit */ |
629 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
630 | /* k17 */ |
631 | subL[22] = kll; subR[22] = klr; |
632 | /* k18 */ |
633 | subL[23] = krl; subR[23] = krr; |
634 | |
635 | /* generate KA */ |
636 | kll = subL[0]; klr = subR[0]; |
637 | krl = subL[1]; krr = subR[1]; |
638 | CAMELLIA_F(kll, klr, |
639 | CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, |
640 | w0, w1, il, ir, t0, t1); |
641 | krl ^= w0; krr ^= w1; |
642 | CAMELLIA_F(krl, krr, |
643 | CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, |
644 | kll, klr, il, ir, t0, t1); |
645 | /* current status == (kll, klr, w0, w1) */ |
646 | CAMELLIA_F(kll, klr, |
647 | CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, |
648 | krl, krr, il, ir, t0, t1); |
649 | krl ^= w0; krr ^= w1; |
650 | CAMELLIA_F(krl, krr, |
651 | CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, |
652 | w0, w1, il, ir, t0, t1); |
653 | kll ^= w0; klr ^= w1; |
654 | |
655 | /* generate KA dependent subkeys */ |
656 | /* k1, k2 */ |
657 | subL[2] = kll; subR[2] = klr; |
658 | subL[3] = krl; subR[3] = krr; |
659 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
660 | /* k5,k6 */ |
661 | subL[6] = kll; subR[6] = klr; |
662 | subL[7] = krl; subR[7] = krr; |
663 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
664 | /* kl1, kl2 */ |
665 | subL[8] = kll; subR[8] = klr; |
666 | subL[9] = krl; subR[9] = krr; |
667 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
668 | /* k9 */ |
669 | subL[12] = kll; subR[12] = klr; |
670 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
671 | /* k11, k12 */ |
672 | subL[14] = kll; subR[14] = klr; |
673 | subL[15] = krl; subR[15] = krr; |
674 | ROLDQo32(kll, klr, krl, krr, w0, w1, 34); |
675 | /* k15, k16 */ |
676 | subL[20] = kll; subR[20] = klr; |
677 | subL[21] = krl; subR[21] = krr; |
678 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
679 | /* kw3, kw4 */ |
680 | subL[24] = kll; subR[24] = klr; |
681 | subL[25] = krl; subR[25] = krr; |
682 | |
683 | camellia_setup_tail(subkey, subL, subR, 24); |
684 | } |
685 | |
686 | static void camellia_setup256(const unsigned char *key, u32 *subkey) |
687 | { |
688 | u32 kll, klr, krl, krr; /* left half of key */ |
689 | u32 krll, krlr, krrl, krrr; /* right half of key */ |
690 | u32 il, ir, t0, t1, w0, w1; /* temporary variables */ |
691 | u32 subL[34]; |
692 | u32 subR[34]; |
693 | |
694 | /** |
695 | * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr) |
696 | * (|| is concatenation) |
697 | */ |
698 | kll = get_unaligned_be32(key); |
699 | klr = get_unaligned_be32(key + 4); |
700 | krl = get_unaligned_be32(key + 8); |
701 | krr = get_unaligned_be32(key + 12); |
702 | krll = get_unaligned_be32(key + 16); |
703 | krlr = get_unaligned_be32(key + 20); |
704 | krrl = get_unaligned_be32(key + 24); |
705 | krrr = get_unaligned_be32(key + 28); |
706 | |
707 | /* generate KL dependent subkeys */ |
708 | /* kw1 */ |
709 | subL[0] = kll; subR[0] = klr; |
710 | /* kw2 */ |
711 | subL[1] = krl; subR[1] = krr; |
712 | ROLDQo32(kll, klr, krl, krr, w0, w1, 45); |
713 | /* k9 */ |
714 | subL[12] = kll; subR[12] = klr; |
715 | /* k10 */ |
716 | subL[13] = krl; subR[13] = krr; |
717 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
718 | /* kl3 */ |
719 | subL[16] = kll; subR[16] = klr; |
720 | /* kl4 */ |
721 | subL[17] = krl; subR[17] = krr; |
722 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
723 | /* k17 */ |
724 | subL[22] = kll; subR[22] = klr; |
725 | /* k18 */ |
726 | subL[23] = krl; subR[23] = krr; |
727 | ROLDQo32(kll, klr, krl, krr, w0, w1, 34); |
728 | /* k23 */ |
729 | subL[30] = kll; subR[30] = klr; |
730 | /* k24 */ |
731 | subL[31] = krl; subR[31] = krr; |
732 | |
733 | /* generate KR dependent subkeys */ |
734 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15); |
735 | /* k3 */ |
736 | subL[4] = krll; subR[4] = krlr; |
737 | /* k4 */ |
738 | subL[5] = krrl; subR[5] = krrr; |
739 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15); |
740 | /* kl1 */ |
741 | subL[8] = krll; subR[8] = krlr; |
742 | /* kl2 */ |
743 | subL[9] = krrl; subR[9] = krrr; |
744 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); |
745 | /* k13 */ |
746 | subL[18] = krll; subR[18] = krlr; |
747 | /* k14 */ |
748 | subL[19] = krrl; subR[19] = krrr; |
749 | ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34); |
750 | /* k19 */ |
751 | subL[26] = krll; subR[26] = krlr; |
752 | /* k20 */ |
753 | subL[27] = krrl; subR[27] = krrr; |
754 | ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34); |
755 | |
756 | /* generate KA */ |
757 | kll = subL[0] ^ krll; klr = subR[0] ^ krlr; |
758 | krl = subL[1] ^ krrl; krr = subR[1] ^ krrr; |
759 | CAMELLIA_F(kll, klr, |
760 | CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, |
761 | w0, w1, il, ir, t0, t1); |
762 | krl ^= w0; krr ^= w1; |
763 | CAMELLIA_F(krl, krr, |
764 | CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, |
765 | kll, klr, il, ir, t0, t1); |
766 | kll ^= krll; klr ^= krlr; |
767 | CAMELLIA_F(kll, klr, |
768 | CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, |
769 | krl, krr, il, ir, t0, t1); |
770 | krl ^= w0 ^ krrl; krr ^= w1 ^ krrr; |
771 | CAMELLIA_F(krl, krr, |
772 | CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, |
773 | w0, w1, il, ir, t0, t1); |
774 | kll ^= w0; klr ^= w1; |
775 | |
776 | /* generate KB */ |
777 | krll ^= kll; krlr ^= klr; |
778 | krrl ^= krl; krrr ^= krr; |
779 | CAMELLIA_F(krll, krlr, |
780 | CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R, |
781 | w0, w1, il, ir, t0, t1); |
782 | krrl ^= w0; krrr ^= w1; |
783 | CAMELLIA_F(krrl, krrr, |
784 | CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R, |
785 | w0, w1, il, ir, t0, t1); |
786 | krll ^= w0; krlr ^= w1; |
787 | |
788 | /* generate KA dependent subkeys */ |
789 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
790 | /* k5 */ |
791 | subL[6] = kll; subR[6] = klr; |
792 | /* k6 */ |
793 | subL[7] = krl; subR[7] = krr; |
794 | ROLDQ(kll, klr, krl, krr, w0, w1, 30); |
795 | /* k11 */ |
796 | subL[14] = kll; subR[14] = klr; |
797 | /* k12 */ |
798 | subL[15] = krl; subR[15] = krr; |
799 | /* rotation left shift 32bit */ |
800 | /* kl5 */ |
801 | subL[24] = klr; subR[24] = krl; |
802 | /* kl6 */ |
803 | subL[25] = krr; subR[25] = kll; |
804 | /* rotation left shift 49 from k11,k12 -> k21,k22 */ |
805 | ROLDQo32(kll, klr, krl, krr, w0, w1, 49); |
806 | /* k21 */ |
807 | subL[28] = kll; subR[28] = klr; |
808 | /* k22 */ |
809 | subL[29] = krl; subR[29] = krr; |
810 | |
811 | /* generate KB dependent subkeys */ |
812 | /* k1 */ |
813 | subL[2] = krll; subR[2] = krlr; |
814 | /* k2 */ |
815 | subL[3] = krrl; subR[3] = krrr; |
816 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); |
817 | /* k7 */ |
818 | subL[10] = krll; subR[10] = krlr; |
819 | /* k8 */ |
820 | subL[11] = krrl; subR[11] = krrr; |
821 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); |
822 | /* k15 */ |
823 | subL[20] = krll; subR[20] = krlr; |
824 | /* k16 */ |
825 | subL[21] = krrl; subR[21] = krrr; |
826 | ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51); |
827 | /* kw3 */ |
828 | subL[32] = krll; subR[32] = krlr; |
829 | /* kw4 */ |
830 | subL[33] = krrl; subR[33] = krrr; |
831 | |
832 | camellia_setup_tail(subkey, subL, subR, 32); |
833 | } |
834 | |
835 | static void camellia_setup192(const unsigned char *key, u32 *subkey) |
836 | { |
837 | unsigned char kk[32]; |
838 | u32 krll, krlr, krrl,krrr; |
839 | |
840 | memcpy(kk, key, 24); |
841 | memcpy((unsigned char *)&krll, key+16, 4); |
842 | memcpy((unsigned char *)&krlr, key+20, 4); |
843 | krrl = ~krll; |
844 | krrr = ~krlr; |
845 | memcpy(kk+24, (unsigned char *)&krrl, 4); |
846 | memcpy(kk+28, (unsigned char *)&krrr, 4); |
847 | camellia_setup256(kk, subkey); |
848 | } |
849 | |
850 | |
851 | /* |
852 | * Encrypt/decrypt |
853 | */ |
854 | #define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) \ |
855 | do { \ |
856 | t0 = kll; \ |
857 | t2 = krr; \ |
858 | t0 &= ll; \ |
859 | t2 |= rr; \ |
860 | rl ^= t2; \ |
861 | lr ^= rol32(t0, 1); \ |
862 | t3 = krl; \ |
863 | t1 = klr; \ |
864 | t3 &= rl; \ |
865 | t1 |= lr; \ |
866 | ll ^= t1; \ |
867 | rr ^= rol32(t3, 1); \ |
868 | } while(0) |
869 | |
870 | #define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) \ |
871 | do { \ |
872 | ir = camellia_sp1110[(u8)xr]; \ |
873 | il = camellia_sp1110[ (xl >> 24)]; \ |
874 | ir ^= camellia_sp0222[ (xr >> 24)]; \ |
875 | il ^= camellia_sp0222[(u8)(xl >> 16)]; \ |
876 | ir ^= camellia_sp3033[(u8)(xr >> 16)]; \ |
877 | il ^= camellia_sp3033[(u8)(xl >> 8)]; \ |
878 | ir ^= camellia_sp4404[(u8)(xr >> 8)]; \ |
879 | il ^= camellia_sp4404[(u8)xl]; \ |
880 | il ^= kl; \ |
881 | ir ^= il ^ kr; \ |
882 | yl ^= ir; \ |
883 | yr ^= ror32(il, 8) ^ ir; \ |
884 | } while(0) |
885 | |
886 | /* max = 24: 128bit encrypt, max = 32: 256bit encrypt */ |
887 | static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max) |
888 | { |
889 | u32 il,ir,t0,t1; /* temporary variables */ |
890 | |
891 | /* pre whitening but absorb kw2 */ |
892 | io[0] ^= SUBKEY_L(0); |
893 | io[1] ^= SUBKEY_R(0); |
894 | |
895 | /* main iteration */ |
896 | #define ROUNDS(i) do { \ |
897 | CAMELLIA_ROUNDSM(io[0],io[1], \ |
898 | SUBKEY_L(i + 2),SUBKEY_R(i + 2), \ |
899 | io[2],io[3],il,ir); \ |
900 | CAMELLIA_ROUNDSM(io[2],io[3], \ |
901 | SUBKEY_L(i + 3),SUBKEY_R(i + 3), \ |
902 | io[0],io[1],il,ir); \ |
903 | CAMELLIA_ROUNDSM(io[0],io[1], \ |
904 | SUBKEY_L(i + 4),SUBKEY_R(i + 4), \ |
905 | io[2],io[3],il,ir); \ |
906 | CAMELLIA_ROUNDSM(io[2],io[3], \ |
907 | SUBKEY_L(i + 5),SUBKEY_R(i + 5), \ |
908 | io[0],io[1],il,ir); \ |
909 | CAMELLIA_ROUNDSM(io[0],io[1], \ |
910 | SUBKEY_L(i + 6),SUBKEY_R(i + 6), \ |
911 | io[2],io[3],il,ir); \ |
912 | CAMELLIA_ROUNDSM(io[2],io[3], \ |
913 | SUBKEY_L(i + 7),SUBKEY_R(i + 7), \ |
914 | io[0],io[1],il,ir); \ |
915 | } while (0) |
916 | #define FLS(i) do { \ |
917 | CAMELLIA_FLS(io[0],io[1],io[2],io[3], \ |
918 | SUBKEY_L(i + 0),SUBKEY_R(i + 0), \ |
919 | SUBKEY_L(i + 1),SUBKEY_R(i + 1), \ |
920 | t0,t1,il,ir); \ |
921 | } while (0) |
922 | |
923 | ROUNDS(0); |
924 | FLS(8); |
925 | ROUNDS(8); |
926 | FLS(16); |
927 | ROUNDS(16); |
928 | if (max == 32) { |
929 | FLS(24); |
930 | ROUNDS(24); |
931 | } |
932 | |
933 | #undef ROUNDS |
934 | #undef FLS |
935 | |
936 | /* post whitening but kw4 */ |
937 | io[2] ^= SUBKEY_L(max); |
938 | io[3] ^= SUBKEY_R(max); |
939 | /* NB: io[0],[1] should be swapped with [2],[3] by caller! */ |
940 | } |
941 | |
942 | static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i) |
943 | { |
944 | u32 il,ir,t0,t1; /* temporary variables */ |
945 | |
946 | /* pre whitening but absorb kw2 */ |
947 | io[0] ^= SUBKEY_L(i); |
948 | io[1] ^= SUBKEY_R(i); |
949 | |
950 | /* main iteration */ |
951 | #define ROUNDS(i) do { \ |
952 | CAMELLIA_ROUNDSM(io[0],io[1], \ |
953 | SUBKEY_L(i + 7),SUBKEY_R(i + 7), \ |
954 | io[2],io[3],il,ir); \ |
955 | CAMELLIA_ROUNDSM(io[2],io[3], \ |
956 | SUBKEY_L(i + 6),SUBKEY_R(i + 6), \ |
957 | io[0],io[1],il,ir); \ |
958 | CAMELLIA_ROUNDSM(io[0],io[1], \ |
959 | SUBKEY_L(i + 5),SUBKEY_R(i + 5), \ |
960 | io[2],io[3],il,ir); \ |
961 | CAMELLIA_ROUNDSM(io[2],io[3], \ |
962 | SUBKEY_L(i + 4),SUBKEY_R(i + 4), \ |
963 | io[0],io[1],il,ir); \ |
964 | CAMELLIA_ROUNDSM(io[0],io[1], \ |
965 | SUBKEY_L(i + 3),SUBKEY_R(i + 3), \ |
966 | io[2],io[3],il,ir); \ |
967 | CAMELLIA_ROUNDSM(io[2],io[3], \ |
968 | SUBKEY_L(i + 2),SUBKEY_R(i + 2), \ |
969 | io[0],io[1],il,ir); \ |
970 | } while (0) |
971 | #define FLS(i) do { \ |
972 | CAMELLIA_FLS(io[0],io[1],io[2],io[3], \ |
973 | SUBKEY_L(i + 1),SUBKEY_R(i + 1), \ |
974 | SUBKEY_L(i + 0),SUBKEY_R(i + 0), \ |
975 | t0,t1,il,ir); \ |
976 | } while (0) |
977 | |
978 | if (i == 32) { |
979 | ROUNDS(24); |
980 | FLS(24); |
981 | } |
982 | ROUNDS(16); |
983 | FLS(16); |
984 | ROUNDS(8); |
985 | FLS(8); |
986 | ROUNDS(0); |
987 | |
988 | #undef ROUNDS |
989 | #undef FLS |
990 | |
991 | /* post whitening but kw4 */ |
992 | io[2] ^= SUBKEY_L(0); |
993 | io[3] ^= SUBKEY_R(0); |
994 | /* NB: 0,1 should be swapped with 2,3 by caller! */ |
995 | } |
996 | |
997 | |
998 | struct camellia_ctx { |
999 | int key_length; |
1000 | u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)]; |
1001 | }; |
1002 | |
1003 | static int |
1004 | camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key, |
1005 | unsigned int key_len) |
1006 | { |
1007 | struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); |
1008 | const unsigned char *key = (const unsigned char *)in_key; |
1009 | u32 *flags = &tfm->crt_flags; |
1010 | |
1011 | if (key_len != 16 && key_len != 24 && key_len != 32) { |
1012 | *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; |
1013 | return -EINVAL; |
1014 | } |
1015 | |
1016 | cctx->key_length = key_len; |
1017 | |
1018 | switch (key_len) { |
1019 | case 16: |
1020 | camellia_setup128(key, cctx->key_table); |
1021 | break; |
1022 | case 24: |
1023 | camellia_setup192(key, cctx->key_table); |
1024 | break; |
1025 | case 32: |
1026 | camellia_setup256(key, cctx->key_table); |
1027 | break; |
1028 | } |
1029 | |
1030 | return 0; |
1031 | } |
1032 | |
1033 | static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) |
1034 | { |
1035 | const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); |
1036 | const __be32 *src = (const __be32 *)in; |
1037 | __be32 *dst = (__be32 *)out; |
1038 | |
1039 | u32 tmp[4]; |
1040 | |
1041 | tmp[0] = be32_to_cpu(src[0]); |
1042 | tmp[1] = be32_to_cpu(src[1]); |
1043 | tmp[2] = be32_to_cpu(src[2]); |
1044 | tmp[3] = be32_to_cpu(src[3]); |
1045 | |
1046 | camellia_do_encrypt(cctx->key_table, tmp, |
1047 | cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */ |
1048 | ); |
1049 | |
1050 | /* do_encrypt returns 0,1 swapped with 2,3 */ |
1051 | dst[0] = cpu_to_be32(tmp[2]); |
1052 | dst[1] = cpu_to_be32(tmp[3]); |
1053 | dst[2] = cpu_to_be32(tmp[0]); |
1054 | dst[3] = cpu_to_be32(tmp[1]); |
1055 | } |
1056 | |
1057 | static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) |
1058 | { |
1059 | const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); |
1060 | const __be32 *src = (const __be32 *)in; |
1061 | __be32 *dst = (__be32 *)out; |
1062 | |
1063 | u32 tmp[4]; |
1064 | |
1065 | tmp[0] = be32_to_cpu(src[0]); |
1066 | tmp[1] = be32_to_cpu(src[1]); |
1067 | tmp[2] = be32_to_cpu(src[2]); |
1068 | tmp[3] = be32_to_cpu(src[3]); |
1069 | |
1070 | camellia_do_decrypt(cctx->key_table, tmp, |
1071 | cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */ |
1072 | ); |
1073 | |
1074 | /* do_decrypt returns 0,1 swapped with 2,3 */ |
1075 | dst[0] = cpu_to_be32(tmp[2]); |
1076 | dst[1] = cpu_to_be32(tmp[3]); |
1077 | dst[2] = cpu_to_be32(tmp[0]); |
1078 | dst[3] = cpu_to_be32(tmp[1]); |
1079 | } |
1080 | |
1081 | static struct crypto_alg camellia_alg = { |
1082 | .cra_name = "camellia", |
1083 | .cra_driver_name = "camellia-generic", |
1084 | .cra_priority = 100, |
1085 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER, |
1086 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
1087 | .cra_ctxsize = sizeof(struct camellia_ctx), |
1088 | .cra_alignmask = 3, |
1089 | .cra_module = THIS_MODULE, |
1090 | .cra_list = LIST_HEAD_INIT(camellia_alg.cra_list), |
1091 | .cra_u = { |
1092 | .cipher = { |
1093 | .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE, |
1094 | .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE, |
1095 | .cia_setkey = camellia_set_key, |
1096 | .cia_encrypt = camellia_encrypt, |
1097 | .cia_decrypt = camellia_decrypt |
1098 | } |
1099 | } |
1100 | }; |
1101 | |
1102 | static int __init camellia_init(void) |
1103 | { |
1104 | return crypto_register_alg(&camellia_alg); |
1105 | } |
1106 | |
1107 | static void __exit camellia_fini(void) |
1108 | { |
1109 | crypto_unregister_alg(&camellia_alg); |
1110 | } |
1111 | |
1112 | module_init(camellia_init); |
1113 | module_exit(camellia_fini); |
1114 | |
1115 | MODULE_DESCRIPTION("Camellia Cipher Algorithm"); |
1116 | MODULE_LICENSE("GPL"); |
1117 |
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jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9