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d64beac0 NT |
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 | ||
d64beac0 NT |
39 | static const u32 camellia_sp1110[256] = { |
40 | 0x70707000,0x82828200,0x2c2c2c00,0xececec00, | |
41 | 0xb3b3b300,0x27272700,0xc0c0c000,0xe5e5e500, | |
42 | 0xe4e4e400,0x85858500,0x57575700,0x35353500, | |
43 | 0xeaeaea00,0x0c0c0c00,0xaeaeae00,0x41414100, | |
44 | 0x23232300,0xefefef00,0x6b6b6b00,0x93939300, | |
45 | 0x45454500,0x19191900,0xa5a5a500,0x21212100, | |
46 | 0xededed00,0x0e0e0e00,0x4f4f4f00,0x4e4e4e00, | |
47 | 0x1d1d1d00,0x65656500,0x92929200,0xbdbdbd00, | |
48 | 0x86868600,0xb8b8b800,0xafafaf00,0x8f8f8f00, | |
49 | 0x7c7c7c00,0xebebeb00,0x1f1f1f00,0xcecece00, | |
50 | 0x3e3e3e00,0x30303000,0xdcdcdc00,0x5f5f5f00, | |
51 | 0x5e5e5e00,0xc5c5c500,0x0b0b0b00,0x1a1a1a00, | |
52 | 0xa6a6a600,0xe1e1e100,0x39393900,0xcacaca00, | |
53 | 0xd5d5d500,0x47474700,0x5d5d5d00,0x3d3d3d00, | |
54 | 0xd9d9d900,0x01010100,0x5a5a5a00,0xd6d6d600, | |
55 | 0x51515100,0x56565600,0x6c6c6c00,0x4d4d4d00, | |
56 | 0x8b8b8b00,0x0d0d0d00,0x9a9a9a00,0x66666600, | |
57 | 0xfbfbfb00,0xcccccc00,0xb0b0b000,0x2d2d2d00, | |
58 | 0x74747400,0x12121200,0x2b2b2b00,0x20202000, | |
59 | 0xf0f0f000,0xb1b1b100,0x84848400,0x99999900, | |
60 | 0xdfdfdf00,0x4c4c4c00,0xcbcbcb00,0xc2c2c200, | |
61 | 0x34343400,0x7e7e7e00,0x76767600,0x05050500, | |
62 | 0x6d6d6d00,0xb7b7b700,0xa9a9a900,0x31313100, | |
63 | 0xd1d1d100,0x17171700,0x04040400,0xd7d7d700, | |
64 | 0x14141400,0x58585800,0x3a3a3a00,0x61616100, | |
65 | 0xdedede00,0x1b1b1b00,0x11111100,0x1c1c1c00, | |
66 | 0x32323200,0x0f0f0f00,0x9c9c9c00,0x16161600, | |
67 | 0x53535300,0x18181800,0xf2f2f200,0x22222200, | |
68 | 0xfefefe00,0x44444400,0xcfcfcf00,0xb2b2b200, | |
69 | 0xc3c3c300,0xb5b5b500,0x7a7a7a00,0x91919100, | |
70 | 0x24242400,0x08080800,0xe8e8e800,0xa8a8a800, | |
71 | 0x60606000,0xfcfcfc00,0x69696900,0x50505000, | |
72 | 0xaaaaaa00,0xd0d0d000,0xa0a0a000,0x7d7d7d00, | |
73 | 0xa1a1a100,0x89898900,0x62626200,0x97979700, | |
74 | 0x54545400,0x5b5b5b00,0x1e1e1e00,0x95959500, | |
75 | 0xe0e0e000,0xffffff00,0x64646400,0xd2d2d200, | |
76 | 0x10101000,0xc4c4c400,0x00000000,0x48484800, | |
77 | 0xa3a3a300,0xf7f7f700,0x75757500,0xdbdbdb00, | |
78 | 0x8a8a8a00,0x03030300,0xe6e6e600,0xdadada00, | |
79 | 0x09090900,0x3f3f3f00,0xdddddd00,0x94949400, | |
80 | 0x87878700,0x5c5c5c00,0x83838300,0x02020200, | |
81 | 0xcdcdcd00,0x4a4a4a00,0x90909000,0x33333300, | |
82 | 0x73737300,0x67676700,0xf6f6f600,0xf3f3f300, | |
83 | 0x9d9d9d00,0x7f7f7f00,0xbfbfbf00,0xe2e2e200, | |
84 | 0x52525200,0x9b9b9b00,0xd8d8d800,0x26262600, | |
85 | 0xc8c8c800,0x37373700,0xc6c6c600,0x3b3b3b00, | |
86 | 0x81818100,0x96969600,0x6f6f6f00,0x4b4b4b00, | |
87 | 0x13131300,0xbebebe00,0x63636300,0x2e2e2e00, | |
88 | 0xe9e9e900,0x79797900,0xa7a7a700,0x8c8c8c00, | |
89 | 0x9f9f9f00,0x6e6e6e00,0xbcbcbc00,0x8e8e8e00, | |
90 | 0x29292900,0xf5f5f500,0xf9f9f900,0xb6b6b600, | |
91 | 0x2f2f2f00,0xfdfdfd00,0xb4b4b400,0x59595900, | |
92 | 0x78787800,0x98989800,0x06060600,0x6a6a6a00, | |
93 | 0xe7e7e700,0x46464600,0x71717100,0xbababa00, | |
94 | 0xd4d4d400,0x25252500,0xababab00,0x42424200, | |
95 | 0x88888800,0xa2a2a200,0x8d8d8d00,0xfafafa00, | |
96 | 0x72727200,0x07070700,0xb9b9b900,0x55555500, | |
97 | 0xf8f8f800,0xeeeeee00,0xacacac00,0x0a0a0a00, | |
98 | 0x36363600,0x49494900,0x2a2a2a00,0x68686800, | |
99 | 0x3c3c3c00,0x38383800,0xf1f1f100,0xa4a4a400, | |
100 | 0x40404000,0x28282800,0xd3d3d300,0x7b7b7b00, | |
101 | 0xbbbbbb00,0xc9c9c900,0x43434300,0xc1c1c100, | |
102 | 0x15151500,0xe3e3e300,0xadadad00,0xf4f4f400, | |
103 | 0x77777700,0xc7c7c700,0x80808000,0x9e9e9e00, | |
104 | }; | |
105 | ||
106 | static const u32 camellia_sp0222[256] = { | |
107 | 0x00e0e0e0,0x00050505,0x00585858,0x00d9d9d9, | |
108 | 0x00676767,0x004e4e4e,0x00818181,0x00cbcbcb, | |
109 | 0x00c9c9c9,0x000b0b0b,0x00aeaeae,0x006a6a6a, | |
110 | 0x00d5d5d5,0x00181818,0x005d5d5d,0x00828282, | |
111 | 0x00464646,0x00dfdfdf,0x00d6d6d6,0x00272727, | |
112 | 0x008a8a8a,0x00323232,0x004b4b4b,0x00424242, | |
113 | 0x00dbdbdb,0x001c1c1c,0x009e9e9e,0x009c9c9c, | |
114 | 0x003a3a3a,0x00cacaca,0x00252525,0x007b7b7b, | |
115 | 0x000d0d0d,0x00717171,0x005f5f5f,0x001f1f1f, | |
116 | 0x00f8f8f8,0x00d7d7d7,0x003e3e3e,0x009d9d9d, | |
117 | 0x007c7c7c,0x00606060,0x00b9b9b9,0x00bebebe, | |
118 | 0x00bcbcbc,0x008b8b8b,0x00161616,0x00343434, | |
119 | 0x004d4d4d,0x00c3c3c3,0x00727272,0x00959595, | |
120 | 0x00ababab,0x008e8e8e,0x00bababa,0x007a7a7a, | |
121 | 0x00b3b3b3,0x00020202,0x00b4b4b4,0x00adadad, | |
122 | 0x00a2a2a2,0x00acacac,0x00d8d8d8,0x009a9a9a, | |
123 | 0x00171717,0x001a1a1a,0x00353535,0x00cccccc, | |
124 | 0x00f7f7f7,0x00999999,0x00616161,0x005a5a5a, | |
125 | 0x00e8e8e8,0x00242424,0x00565656,0x00404040, | |
126 | 0x00e1e1e1,0x00636363,0x00090909,0x00333333, | |
127 | 0x00bfbfbf,0x00989898,0x00979797,0x00858585, | |
128 | 0x00686868,0x00fcfcfc,0x00ececec,0x000a0a0a, | |
129 | 0x00dadada,0x006f6f6f,0x00535353,0x00626262, | |
130 | 0x00a3a3a3,0x002e2e2e,0x00080808,0x00afafaf, | |
131 | 0x00282828,0x00b0b0b0,0x00747474,0x00c2c2c2, | |
132 | 0x00bdbdbd,0x00363636,0x00222222,0x00383838, | |
133 | 0x00646464,0x001e1e1e,0x00393939,0x002c2c2c, | |
134 | 0x00a6a6a6,0x00303030,0x00e5e5e5,0x00444444, | |
135 | 0x00fdfdfd,0x00888888,0x009f9f9f,0x00656565, | |
136 | 0x00878787,0x006b6b6b,0x00f4f4f4,0x00232323, | |
137 | 0x00484848,0x00101010,0x00d1d1d1,0x00515151, | |
138 | 0x00c0c0c0,0x00f9f9f9,0x00d2d2d2,0x00a0a0a0, | |
139 | 0x00555555,0x00a1a1a1,0x00414141,0x00fafafa, | |
140 | 0x00434343,0x00131313,0x00c4c4c4,0x002f2f2f, | |
141 | 0x00a8a8a8,0x00b6b6b6,0x003c3c3c,0x002b2b2b, | |
142 | 0x00c1c1c1,0x00ffffff,0x00c8c8c8,0x00a5a5a5, | |
143 | 0x00202020,0x00898989,0x00000000,0x00909090, | |
144 | 0x00474747,0x00efefef,0x00eaeaea,0x00b7b7b7, | |
145 | 0x00151515,0x00060606,0x00cdcdcd,0x00b5b5b5, | |
146 | 0x00121212,0x007e7e7e,0x00bbbbbb,0x00292929, | |
147 | 0x000f0f0f,0x00b8b8b8,0x00070707,0x00040404, | |
148 | 0x009b9b9b,0x00949494,0x00212121,0x00666666, | |
149 | 0x00e6e6e6,0x00cecece,0x00ededed,0x00e7e7e7, | |
150 | 0x003b3b3b,0x00fefefe,0x007f7f7f,0x00c5c5c5, | |
151 | 0x00a4a4a4,0x00373737,0x00b1b1b1,0x004c4c4c, | |
152 | 0x00919191,0x006e6e6e,0x008d8d8d,0x00767676, | |
153 | 0x00030303,0x002d2d2d,0x00dedede,0x00969696, | |
154 | 0x00262626,0x007d7d7d,0x00c6c6c6,0x005c5c5c, | |
155 | 0x00d3d3d3,0x00f2f2f2,0x004f4f4f,0x00191919, | |
156 | 0x003f3f3f,0x00dcdcdc,0x00797979,0x001d1d1d, | |
157 | 0x00525252,0x00ebebeb,0x00f3f3f3,0x006d6d6d, | |
158 | 0x005e5e5e,0x00fbfbfb,0x00696969,0x00b2b2b2, | |
159 | 0x00f0f0f0,0x00313131,0x000c0c0c,0x00d4d4d4, | |
160 | 0x00cfcfcf,0x008c8c8c,0x00e2e2e2,0x00757575, | |
161 | 0x00a9a9a9,0x004a4a4a,0x00575757,0x00848484, | |
162 | 0x00111111,0x00454545,0x001b1b1b,0x00f5f5f5, | |
163 | 0x00e4e4e4,0x000e0e0e,0x00737373,0x00aaaaaa, | |
164 | 0x00f1f1f1,0x00dddddd,0x00595959,0x00141414, | |
165 | 0x006c6c6c,0x00929292,0x00545454,0x00d0d0d0, | |
166 | 0x00787878,0x00707070,0x00e3e3e3,0x00494949, | |
167 | 0x00808080,0x00505050,0x00a7a7a7,0x00f6f6f6, | |
168 | 0x00777777,0x00939393,0x00868686,0x00838383, | |
169 | 0x002a2a2a,0x00c7c7c7,0x005b5b5b,0x00e9e9e9, | |
170 | 0x00eeeeee,0x008f8f8f,0x00010101,0x003d3d3d, | |
171 | }; | |
172 | ||
173 | static const u32 camellia_sp3033[256] = { | |
174 | 0x38003838,0x41004141,0x16001616,0x76007676, | |
175 | 0xd900d9d9,0x93009393,0x60006060,0xf200f2f2, | |
176 | 0x72007272,0xc200c2c2,0xab00abab,0x9a009a9a, | |
177 | 0x75007575,0x06000606,0x57005757,0xa000a0a0, | |
178 | 0x91009191,0xf700f7f7,0xb500b5b5,0xc900c9c9, | |
179 | 0xa200a2a2,0x8c008c8c,0xd200d2d2,0x90009090, | |
180 | 0xf600f6f6,0x07000707,0xa700a7a7,0x27002727, | |
181 | 0x8e008e8e,0xb200b2b2,0x49004949,0xde00dede, | |
182 | 0x43004343,0x5c005c5c,0xd700d7d7,0xc700c7c7, | |
183 | 0x3e003e3e,0xf500f5f5,0x8f008f8f,0x67006767, | |
184 | 0x1f001f1f,0x18001818,0x6e006e6e,0xaf00afaf, | |
185 | 0x2f002f2f,0xe200e2e2,0x85008585,0x0d000d0d, | |
186 | 0x53005353,0xf000f0f0,0x9c009c9c,0x65006565, | |
187 | 0xea00eaea,0xa300a3a3,0xae00aeae,0x9e009e9e, | |
188 | 0xec00ecec,0x80008080,0x2d002d2d,0x6b006b6b, | |
189 | 0xa800a8a8,0x2b002b2b,0x36003636,0xa600a6a6, | |
190 | 0xc500c5c5,0x86008686,0x4d004d4d,0x33003333, | |
191 | 0xfd00fdfd,0x66006666,0x58005858,0x96009696, | |
192 | 0x3a003a3a,0x09000909,0x95009595,0x10001010, | |
193 | 0x78007878,0xd800d8d8,0x42004242,0xcc00cccc, | |
194 | 0xef00efef,0x26002626,0xe500e5e5,0x61006161, | |
195 | 0x1a001a1a,0x3f003f3f,0x3b003b3b,0x82008282, | |
196 | 0xb600b6b6,0xdb00dbdb,0xd400d4d4,0x98009898, | |
197 | 0xe800e8e8,0x8b008b8b,0x02000202,0xeb00ebeb, | |
198 | 0x0a000a0a,0x2c002c2c,0x1d001d1d,0xb000b0b0, | |
199 | 0x6f006f6f,0x8d008d8d,0x88008888,0x0e000e0e, | |
200 | 0x19001919,0x87008787,0x4e004e4e,0x0b000b0b, | |
201 | 0xa900a9a9,0x0c000c0c,0x79007979,0x11001111, | |
202 | 0x7f007f7f,0x22002222,0xe700e7e7,0x59005959, | |
203 | 0xe100e1e1,0xda00dada,0x3d003d3d,0xc800c8c8, | |
204 | 0x12001212,0x04000404,0x74007474,0x54005454, | |
205 | 0x30003030,0x7e007e7e,0xb400b4b4,0x28002828, | |
206 | 0x55005555,0x68006868,0x50005050,0xbe00bebe, | |
207 | 0xd000d0d0,0xc400c4c4,0x31003131,0xcb00cbcb, | |
208 | 0x2a002a2a,0xad00adad,0x0f000f0f,0xca00caca, | |
209 | 0x70007070,0xff00ffff,0x32003232,0x69006969, | |
210 | 0x08000808,0x62006262,0x00000000,0x24002424, | |
211 | 0xd100d1d1,0xfb00fbfb,0xba00baba,0xed00eded, | |
212 | 0x45004545,0x81008181,0x73007373,0x6d006d6d, | |
213 | 0x84008484,0x9f009f9f,0xee00eeee,0x4a004a4a, | |
214 | 0xc300c3c3,0x2e002e2e,0xc100c1c1,0x01000101, | |
215 | 0xe600e6e6,0x25002525,0x48004848,0x99009999, | |
216 | 0xb900b9b9,0xb300b3b3,0x7b007b7b,0xf900f9f9, | |
217 | 0xce00cece,0xbf00bfbf,0xdf00dfdf,0x71007171, | |
218 | 0x29002929,0xcd00cdcd,0x6c006c6c,0x13001313, | |
219 | 0x64006464,0x9b009b9b,0x63006363,0x9d009d9d, | |
220 | 0xc000c0c0,0x4b004b4b,0xb700b7b7,0xa500a5a5, | |
221 | 0x89008989,0x5f005f5f,0xb100b1b1,0x17001717, | |
222 | 0xf400f4f4,0xbc00bcbc,0xd300d3d3,0x46004646, | |
223 | 0xcf00cfcf,0x37003737,0x5e005e5e,0x47004747, | |
224 | 0x94009494,0xfa00fafa,0xfc00fcfc,0x5b005b5b, | |
225 | 0x97009797,0xfe00fefe,0x5a005a5a,0xac00acac, | |
226 | 0x3c003c3c,0x4c004c4c,0x03000303,0x35003535, | |
227 | 0xf300f3f3,0x23002323,0xb800b8b8,0x5d005d5d, | |
228 | 0x6a006a6a,0x92009292,0xd500d5d5,0x21002121, | |
229 | 0x44004444,0x51005151,0xc600c6c6,0x7d007d7d, | |
230 | 0x39003939,0x83008383,0xdc00dcdc,0xaa00aaaa, | |
231 | 0x7c007c7c,0x77007777,0x56005656,0x05000505, | |
232 | 0x1b001b1b,0xa400a4a4,0x15001515,0x34003434, | |
233 | 0x1e001e1e,0x1c001c1c,0xf800f8f8,0x52005252, | |
234 | 0x20002020,0x14001414,0xe900e9e9,0xbd00bdbd, | |
235 | 0xdd00dddd,0xe400e4e4,0xa100a1a1,0xe000e0e0, | |
236 | 0x8a008a8a,0xf100f1f1,0xd600d6d6,0x7a007a7a, | |
237 | 0xbb00bbbb,0xe300e3e3,0x40004040,0x4f004f4f, | |
238 | }; | |
239 | ||
240 | static const u32 camellia_sp4404[256] = { | |
241 | 0x70700070,0x2c2c002c,0xb3b300b3,0xc0c000c0, | |
242 | 0xe4e400e4,0x57570057,0xeaea00ea,0xaeae00ae, | |
243 | 0x23230023,0x6b6b006b,0x45450045,0xa5a500a5, | |
244 | 0xeded00ed,0x4f4f004f,0x1d1d001d,0x92920092, | |
245 | 0x86860086,0xafaf00af,0x7c7c007c,0x1f1f001f, | |
246 | 0x3e3e003e,0xdcdc00dc,0x5e5e005e,0x0b0b000b, | |
247 | 0xa6a600a6,0x39390039,0xd5d500d5,0x5d5d005d, | |
248 | 0xd9d900d9,0x5a5a005a,0x51510051,0x6c6c006c, | |
249 | 0x8b8b008b,0x9a9a009a,0xfbfb00fb,0xb0b000b0, | |
250 | 0x74740074,0x2b2b002b,0xf0f000f0,0x84840084, | |
251 | 0xdfdf00df,0xcbcb00cb,0x34340034,0x76760076, | |
252 | 0x6d6d006d,0xa9a900a9,0xd1d100d1,0x04040004, | |
253 | 0x14140014,0x3a3a003a,0xdede00de,0x11110011, | |
254 | 0x32320032,0x9c9c009c,0x53530053,0xf2f200f2, | |
255 | 0xfefe00fe,0xcfcf00cf,0xc3c300c3,0x7a7a007a, | |
256 | 0x24240024,0xe8e800e8,0x60600060,0x69690069, | |
257 | 0xaaaa00aa,0xa0a000a0,0xa1a100a1,0x62620062, | |
258 | 0x54540054,0x1e1e001e,0xe0e000e0,0x64640064, | |
259 | 0x10100010,0x00000000,0xa3a300a3,0x75750075, | |
260 | 0x8a8a008a,0xe6e600e6,0x09090009,0xdddd00dd, | |
261 | 0x87870087,0x83830083,0xcdcd00cd,0x90900090, | |
262 | 0x73730073,0xf6f600f6,0x9d9d009d,0xbfbf00bf, | |
263 | 0x52520052,0xd8d800d8,0xc8c800c8,0xc6c600c6, | |
264 | 0x81810081,0x6f6f006f,0x13130013,0x63630063, | |
265 | 0xe9e900e9,0xa7a700a7,0x9f9f009f,0xbcbc00bc, | |
266 | 0x29290029,0xf9f900f9,0x2f2f002f,0xb4b400b4, | |
267 | 0x78780078,0x06060006,0xe7e700e7,0x71710071, | |
268 | 0xd4d400d4,0xabab00ab,0x88880088,0x8d8d008d, | |
269 | 0x72720072,0xb9b900b9,0xf8f800f8,0xacac00ac, | |
270 | 0x36360036,0x2a2a002a,0x3c3c003c,0xf1f100f1, | |
271 | 0x40400040,0xd3d300d3,0xbbbb00bb,0x43430043, | |
272 | 0x15150015,0xadad00ad,0x77770077,0x80800080, | |
273 | 0x82820082,0xecec00ec,0x27270027,0xe5e500e5, | |
274 | 0x85850085,0x35350035,0x0c0c000c,0x41410041, | |
275 | 0xefef00ef,0x93930093,0x19190019,0x21210021, | |
276 | 0x0e0e000e,0x4e4e004e,0x65650065,0xbdbd00bd, | |
277 | 0xb8b800b8,0x8f8f008f,0xebeb00eb,0xcece00ce, | |
278 | 0x30300030,0x5f5f005f,0xc5c500c5,0x1a1a001a, | |
279 | 0xe1e100e1,0xcaca00ca,0x47470047,0x3d3d003d, | |
280 | 0x01010001,0xd6d600d6,0x56560056,0x4d4d004d, | |
281 | 0x0d0d000d,0x66660066,0xcccc00cc,0x2d2d002d, | |
282 | 0x12120012,0x20200020,0xb1b100b1,0x99990099, | |
283 | 0x4c4c004c,0xc2c200c2,0x7e7e007e,0x05050005, | |
284 | 0xb7b700b7,0x31310031,0x17170017,0xd7d700d7, | |
285 | 0x58580058,0x61610061,0x1b1b001b,0x1c1c001c, | |
286 | 0x0f0f000f,0x16160016,0x18180018,0x22220022, | |
287 | 0x44440044,0xb2b200b2,0xb5b500b5,0x91910091, | |
288 | 0x08080008,0xa8a800a8,0xfcfc00fc,0x50500050, | |
289 | 0xd0d000d0,0x7d7d007d,0x89890089,0x97970097, | |
290 | 0x5b5b005b,0x95950095,0xffff00ff,0xd2d200d2, | |
291 | 0xc4c400c4,0x48480048,0xf7f700f7,0xdbdb00db, | |
292 | 0x03030003,0xdada00da,0x3f3f003f,0x94940094, | |
293 | 0x5c5c005c,0x02020002,0x4a4a004a,0x33330033, | |
294 | 0x67670067,0xf3f300f3,0x7f7f007f,0xe2e200e2, | |
295 | 0x9b9b009b,0x26260026,0x37370037,0x3b3b003b, | |
296 | 0x96960096,0x4b4b004b,0xbebe00be,0x2e2e002e, | |
297 | 0x79790079,0x8c8c008c,0x6e6e006e,0x8e8e008e, | |
298 | 0xf5f500f5,0xb6b600b6,0xfdfd00fd,0x59590059, | |
299 | 0x98980098,0x6a6a006a,0x46460046,0xbaba00ba, | |
300 | 0x25250025,0x42420042,0xa2a200a2,0xfafa00fa, | |
301 | 0x07070007,0x55550055,0xeeee00ee,0x0a0a000a, | |
302 | 0x49490049,0x68680068,0x38380038,0xa4a400a4, | |
303 | 0x28280028,0x7b7b007b,0xc9c900c9,0xc1c100c1, | |
304 | 0xe3e300e3,0xf4f400f4,0xc7c700c7,0x9e9e009e, | |
305 | }; | |
306 | ||
307 | ||
1721a812 DV |
308 | #define CAMELLIA_MIN_KEY_SIZE 16 |
309 | #define CAMELLIA_MAX_KEY_SIZE 32 | |
310 | #define CAMELLIA_BLOCK_SIZE 16 | |
311 | #define CAMELLIA_TABLE_BYTE_LEN 272 | |
312 | ||
2ddae4a6 DV |
313 | /* |
314 | * NB: L and R below stand for 'left' and 'right' as in written numbers. | |
315 | * That is, in (xxxL,xxxR) pair xxxL holds most significant digits, | |
316 | * _not_ least significant ones! | |
317 | */ | |
318 | ||
1721a812 DV |
319 | |
320 | /* key constants */ | |
321 | ||
322 | #define CAMELLIA_SIGMA1L (0xA09E667FL) | |
323 | #define CAMELLIA_SIGMA1R (0x3BCC908BL) | |
324 | #define CAMELLIA_SIGMA2L (0xB67AE858L) | |
325 | #define CAMELLIA_SIGMA2R (0x4CAA73B2L) | |
326 | #define CAMELLIA_SIGMA3L (0xC6EF372FL) | |
327 | #define CAMELLIA_SIGMA3R (0xE94F82BEL) | |
328 | #define CAMELLIA_SIGMA4L (0x54FF53A5L) | |
329 | #define CAMELLIA_SIGMA4R (0xF1D36F1CL) | |
330 | #define CAMELLIA_SIGMA5L (0x10E527FAL) | |
331 | #define CAMELLIA_SIGMA5R (0xDE682D1DL) | |
332 | #define CAMELLIA_SIGMA6L (0xB05688C2L) | |
333 | #define CAMELLIA_SIGMA6R (0xB3E6C1FDL) | |
334 | ||
335 | /* | |
336 | * macros | |
337 | */ | |
2ddae4a6 | 338 | #define GETU32(v, pt) \ |
1ce73e8d DV |
339 | do { \ |
340 | /* latest breed of gcc is clever enough to use move */ \ | |
341 | memcpy(&(v), (pt), 4); \ | |
342 | (v) = be32_to_cpu(v); \ | |
343 | } while(0) | |
1721a812 DV |
344 | |
345 | /* rotation right shift 1byte */ | |
3a5e5f81 | 346 | #define ROR8(x) (((x) >> 8) + ((x) << 24)) |
1721a812 | 347 | /* rotation left shift 1bit */ |
3a5e5f81 | 348 | #define ROL1(x) (((x) << 1) + ((x) >> 31)) |
1721a812 | 349 | /* rotation left shift 1byte */ |
3a5e5f81 | 350 | #define ROL8(x) (((x) << 8) + ((x) >> 24)) |
1721a812 | 351 | |
3a5e5f81 | 352 | #define ROLDQ(ll, lr, rl, rr, w0, w1, bits) \ |
1721a812 DV |
353 | do { \ |
354 | w0 = ll; \ | |
355 | ll = (ll << bits) + (lr >> (32 - bits)); \ | |
356 | lr = (lr << bits) + (rl >> (32 - bits)); \ | |
357 | rl = (rl << bits) + (rr >> (32 - bits)); \ | |
358 | rr = (rr << bits) + (w0 >> (32 - bits)); \ | |
359 | } while(0) | |
360 | ||
3a5e5f81 | 361 | #define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) \ |
1721a812 DV |
362 | do { \ |
363 | w0 = ll; \ | |
364 | w1 = lr; \ | |
365 | ll = (lr << (bits - 32)) + (rl >> (64 - bits)); \ | |
366 | lr = (rl << (bits - 32)) + (rr >> (64 - bits)); \ | |
367 | rl = (rr << (bits - 32)) + (w0 >> (64 - bits)); \ | |
368 | rr = (w0 << (bits - 32)) + (w1 >> (64 - bits)); \ | |
369 | } while(0) | |
370 | ||
1721a812 DV |
371 | #define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) \ |
372 | do { \ | |
373 | il = xl ^ kl; \ | |
374 | ir = xr ^ kr; \ | |
375 | t0 = il >> 16; \ | |
376 | t1 = ir >> 16; \ | |
2ddae4a6 DV |
377 | yl = camellia_sp1110[(u8)(ir )] \ |
378 | ^ camellia_sp0222[ (t1 >> 8)] \ | |
379 | ^ camellia_sp3033[(u8)(t1 )] \ | |
380 | ^ camellia_sp4404[(u8)(ir >> 8)]; \ | |
381 | yr = camellia_sp1110[ (t0 >> 8)] \ | |
382 | ^ camellia_sp0222[(u8)(t0 )] \ | |
383 | ^ camellia_sp3033[(u8)(il >> 8)] \ | |
384 | ^ camellia_sp4404[(u8)(il )]; \ | |
1721a812 | 385 | yl ^= yr; \ |
3a5e5f81 | 386 | yr = ROR8(yr); \ |
1721a812 DV |
387 | yr ^= yl; \ |
388 | } while(0) | |
389 | ||
3a5e5f81 DV |
390 | #define SUBKEY_L(INDEX) (subkey[(INDEX)*2]) |
391 | #define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1]) | |
d64beac0 | 392 | |
d3e74805 DV |
393 | static void camellia_setup_tail(u32 *subkey, int max) |
394 | { | |
395 | u32 dw; | |
396 | int i = 2; | |
397 | do { | |
398 | dw = SUBKEY_L(i + 0) ^ SUBKEY_R(i + 0); dw = ROL8(dw);/* round 1 */ | |
399 | SUBKEY_R(i + 0) = SUBKEY_L(i + 0) ^ dw; SUBKEY_L(i + 0) = dw; | |
400 | dw = SUBKEY_L(i + 1) ^ SUBKEY_R(i + 1); dw = ROL8(dw);/* round 2 */ | |
401 | SUBKEY_R(i + 1) = SUBKEY_L(i + 1) ^ dw; SUBKEY_L(i + 1) = dw; | |
402 | dw = SUBKEY_L(i + 2) ^ SUBKEY_R(i + 2); dw = ROL8(dw);/* round 3 */ | |
403 | SUBKEY_R(i + 2) = SUBKEY_L(i + 2) ^ dw; SUBKEY_L(i + 2) = dw; | |
404 | dw = SUBKEY_L(i + 3) ^ SUBKEY_R(i + 3); dw = ROL8(dw);/* round 4 */ | |
405 | SUBKEY_R(i + 3) = SUBKEY_L(i + 3) ^ dw; SUBKEY_L(i + 3) = dw; | |
406 | dw = SUBKEY_L(i + 4) ^ SUBKEY_R(i + 4); dw = ROL8(dw);/* round 5 */ | |
407 | SUBKEY_R(i + 4) = SUBKEY_L(i + 4) ^ dw; SUBKEY_L(i + 4) = dw; | |
408 | dw = SUBKEY_L(i + 5) ^ SUBKEY_R(i + 5); dw = ROL8(dw);/* round 6 */ | |
409 | SUBKEY_R(i + 5) = SUBKEY_L(i + 5) ^ dw; SUBKEY_L(i + 5) = dw; | |
410 | i += 8; | |
411 | } while (i < max); | |
412 | } | |
413 | ||
d64beac0 NT |
414 | static void camellia_setup128(const unsigned char *key, u32 *subkey) |
415 | { | |
416 | u32 kll, klr, krl, krr; | |
417 | u32 il, ir, t0, t1, w0, w1; | |
418 | u32 kw4l, kw4r, dw, tl, tr; | |
419 | u32 subL[26]; | |
420 | u32 subR[26]; | |
421 | ||
422 | /** | |
423 | * k == kll || klr || krl || krr (|| is concatination) | |
424 | */ | |
1ce73e8d DV |
425 | GETU32(kll, key ); |
426 | GETU32(klr, key + 4); | |
427 | GETU32(krl, key + 8); | |
428 | GETU32(krr, key + 12); | |
429 | ||
d64beac0 NT |
430 | /** |
431 | * generate KL dependent subkeys | |
432 | */ | |
433 | /* kw1 */ | |
1721a812 | 434 | subL[0] = kll; subR[0] = klr; |
d64beac0 | 435 | /* kw2 */ |
1721a812 | 436 | subL[1] = krl; subR[1] = krr; |
d64beac0 | 437 | /* rotation left shift 15bit */ |
3a5e5f81 | 438 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 439 | /* k3 */ |
1721a812 | 440 | subL[4] = kll; subR[4] = klr; |
d64beac0 | 441 | /* k4 */ |
1721a812 | 442 | subL[5] = krl; subR[5] = krr; |
d64beac0 | 443 | /* rotation left shift 15+30bit */ |
3a5e5f81 | 444 | ROLDQ(kll, klr, krl, krr, w0, w1, 30); |
d64beac0 | 445 | /* k7 */ |
1721a812 | 446 | subL[10] = kll; subR[10] = klr; |
d64beac0 | 447 | /* k8 */ |
1721a812 | 448 | subL[11] = krl; subR[11] = krr; |
d64beac0 | 449 | /* rotation left shift 15+30+15bit */ |
3a5e5f81 | 450 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 451 | /* k10 */ |
1721a812 | 452 | subL[13] = krl; subR[13] = krr; |
d64beac0 | 453 | /* rotation left shift 15+30+15+17 bit */ |
3a5e5f81 | 454 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
d64beac0 | 455 | /* kl3 */ |
1721a812 | 456 | subL[16] = kll; subR[16] = klr; |
d64beac0 | 457 | /* kl4 */ |
1721a812 | 458 | subL[17] = krl; subR[17] = krr; |
d64beac0 | 459 | /* rotation left shift 15+30+15+17+17 bit */ |
3a5e5f81 | 460 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
d64beac0 | 461 | /* k13 */ |
1721a812 | 462 | subL[18] = kll; subR[18] = klr; |
d64beac0 | 463 | /* k14 */ |
1721a812 | 464 | subL[19] = krl; subR[19] = krr; |
d64beac0 | 465 | /* rotation left shift 15+30+15+17+17+17 bit */ |
3a5e5f81 | 466 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
d64beac0 | 467 | /* k17 */ |
1721a812 | 468 | subL[22] = kll; subR[22] = klr; |
d64beac0 | 469 | /* k18 */ |
1721a812 | 470 | subL[23] = krl; subR[23] = krr; |
d64beac0 NT |
471 | |
472 | /* generate KA */ | |
1721a812 DV |
473 | kll = subL[0]; klr = subR[0]; |
474 | krl = subL[1]; krr = subR[1]; | |
d64beac0 NT |
475 | CAMELLIA_F(kll, klr, |
476 | CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, | |
477 | w0, w1, il, ir, t0, t1); | |
478 | krl ^= w0; krr ^= w1; | |
479 | CAMELLIA_F(krl, krr, | |
480 | CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, | |
481 | kll, klr, il, ir, t0, t1); | |
482 | /* current status == (kll, klr, w0, w1) */ | |
483 | CAMELLIA_F(kll, klr, | |
484 | CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, | |
485 | krl, krr, il, ir, t0, t1); | |
486 | krl ^= w0; krr ^= w1; | |
487 | CAMELLIA_F(krl, krr, | |
488 | CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, | |
489 | w0, w1, il, ir, t0, t1); | |
490 | kll ^= w0; klr ^= w1; | |
491 | ||
492 | /* generate KA dependent subkeys */ | |
493 | /* k1, k2 */ | |
1721a812 DV |
494 | subL[2] = kll; subR[2] = klr; |
495 | subL[3] = krl; subR[3] = krr; | |
3a5e5f81 | 496 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 497 | /* k5,k6 */ |
1721a812 DV |
498 | subL[6] = kll; subR[6] = klr; |
499 | subL[7] = krl; subR[7] = krr; | |
3a5e5f81 | 500 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 501 | /* kl1, kl2 */ |
1721a812 DV |
502 | subL[8] = kll; subR[8] = klr; |
503 | subL[9] = krl; subR[9] = krr; | |
3a5e5f81 | 504 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 505 | /* k9 */ |
1721a812 | 506 | subL[12] = kll; subR[12] = klr; |
3a5e5f81 | 507 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 508 | /* k11, k12 */ |
1721a812 DV |
509 | subL[14] = kll; subR[14] = klr; |
510 | subL[15] = krl; subR[15] = krr; | |
3a5e5f81 | 511 | ROLDQo32(kll, klr, krl, krr, w0, w1, 34); |
d64beac0 | 512 | /* k15, k16 */ |
1721a812 DV |
513 | subL[20] = kll; subR[20] = klr; |
514 | subL[21] = krl; subR[21] = krr; | |
3a5e5f81 | 515 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
d64beac0 | 516 | /* kw3, kw4 */ |
1721a812 DV |
517 | subL[24] = kll; subR[24] = klr; |
518 | subL[25] = krl; subR[25] = krr; | |
d64beac0 NT |
519 | |
520 | /* absorb kw2 to other subkeys */ | |
521 | /* round 2 */ | |
1721a812 | 522 | subL[3] ^= subL[1]; subR[3] ^= subR[1]; |
d64beac0 | 523 | /* round 4 */ |
1721a812 | 524 | subL[5] ^= subL[1]; subR[5] ^= subR[1]; |
d64beac0 | 525 | /* round 6 */ |
1721a812 DV |
526 | subL[7] ^= subL[1]; subR[7] ^= subR[1]; |
527 | subL[1] ^= subR[1] & ~subR[9]; | |
528 | dw = subL[1] & subL[9], | |
3a5e5f81 | 529 | subR[1] ^= ROL1(dw); /* modified for FLinv(kl2) */ |
d64beac0 | 530 | /* round 8 */ |
1721a812 | 531 | subL[11] ^= subL[1]; subR[11] ^= subR[1]; |
d64beac0 | 532 | /* round 10 */ |
1721a812 | 533 | subL[13] ^= subL[1]; subR[13] ^= subR[1]; |
d64beac0 | 534 | /* round 12 */ |
1721a812 DV |
535 | subL[15] ^= subL[1]; subR[15] ^= subR[1]; |
536 | subL[1] ^= subR[1] & ~subR[17]; | |
537 | dw = subL[1] & subL[17], | |
3a5e5f81 | 538 | subR[1] ^= ROL1(dw); /* modified for FLinv(kl4) */ |
d64beac0 | 539 | /* round 14 */ |
1721a812 | 540 | subL[19] ^= subL[1]; subR[19] ^= subR[1]; |
d64beac0 | 541 | /* round 16 */ |
1721a812 | 542 | subL[21] ^= subL[1]; subR[21] ^= subR[1]; |
d64beac0 | 543 | /* round 18 */ |
1721a812 | 544 | subL[23] ^= subL[1]; subR[23] ^= subR[1]; |
d64beac0 | 545 | /* kw3 */ |
1721a812 | 546 | subL[24] ^= subL[1]; subR[24] ^= subR[1]; |
d64beac0 NT |
547 | |
548 | /* absorb kw4 to other subkeys */ | |
1721a812 | 549 | kw4l = subL[25]; kw4r = subR[25]; |
d64beac0 | 550 | /* round 17 */ |
1721a812 | 551 | subL[22] ^= kw4l; subR[22] ^= kw4r; |
d64beac0 | 552 | /* round 15 */ |
1721a812 | 553 | subL[20] ^= kw4l; subR[20] ^= kw4r; |
d64beac0 | 554 | /* round 13 */ |
1721a812 DV |
555 | subL[18] ^= kw4l; subR[18] ^= kw4r; |
556 | kw4l ^= kw4r & ~subR[16]; | |
557 | dw = kw4l & subL[16], | |
3a5e5f81 | 558 | kw4r ^= ROL1(dw); /* modified for FL(kl3) */ |
d64beac0 | 559 | /* round 11 */ |
1721a812 | 560 | subL[14] ^= kw4l; subR[14] ^= kw4r; |
d64beac0 | 561 | /* round 9 */ |
1721a812 | 562 | subL[12] ^= kw4l; subR[12] ^= kw4r; |
d64beac0 | 563 | /* round 7 */ |
1721a812 DV |
564 | subL[10] ^= kw4l; subR[10] ^= kw4r; |
565 | kw4l ^= kw4r & ~subR[8]; | |
566 | dw = kw4l & subL[8], | |
3a5e5f81 | 567 | kw4r ^= ROL1(dw); /* modified for FL(kl1) */ |
d64beac0 | 568 | /* round 5 */ |
1721a812 | 569 | subL[6] ^= kw4l; subR[6] ^= kw4r; |
d64beac0 | 570 | /* round 3 */ |
1721a812 | 571 | subL[4] ^= kw4l; subR[4] ^= kw4r; |
d64beac0 | 572 | /* round 1 */ |
1721a812 | 573 | subL[2] ^= kw4l; subR[2] ^= kw4r; |
d64beac0 | 574 | /* kw1 */ |
1721a812 | 575 | subL[0] ^= kw4l; subR[0] ^= kw4r; |
d64beac0 NT |
576 | |
577 | /* key XOR is end of F-function */ | |
3a5e5f81 DV |
578 | SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */ |
579 | SUBKEY_R(0) = subR[0] ^ subR[2]; | |
580 | SUBKEY_L(2) = subL[3]; /* round 1 */ | |
581 | SUBKEY_R(2) = subR[3]; | |
582 | SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */ | |
583 | SUBKEY_R(3) = subR[2] ^ subR[4]; | |
584 | SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */ | |
585 | SUBKEY_R(4) = subR[3] ^ subR[5]; | |
586 | SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */ | |
587 | SUBKEY_R(5) = subR[4] ^ subR[6]; | |
588 | SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */ | |
589 | SUBKEY_R(6) = subR[5] ^ subR[7]; | |
1721a812 DV |
590 | tl = subL[10] ^ (subR[10] & ~subR[8]); |
591 | dw = tl & subL[8], /* FL(kl1) */ | |
3a5e5f81 DV |
592 | tr = subR[10] ^ ROL1(dw); |
593 | SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */ | |
594 | SUBKEY_R(7) = subR[6] ^ tr; | |
595 | SUBKEY_L(8) = subL[8]; /* FL(kl1) */ | |
596 | SUBKEY_R(8) = subR[8]; | |
597 | SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */ | |
598 | SUBKEY_R(9) = subR[9]; | |
1721a812 DV |
599 | tl = subL[7] ^ (subR[7] & ~subR[9]); |
600 | dw = tl & subL[9], /* FLinv(kl2) */ | |
3a5e5f81 DV |
601 | tr = subR[7] ^ ROL1(dw); |
602 | SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */ | |
603 | SUBKEY_R(10) = tr ^ subR[11]; | |
604 | SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */ | |
605 | SUBKEY_R(11) = subR[10] ^ subR[12]; | |
606 | SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */ | |
607 | SUBKEY_R(12) = subR[11] ^ subR[13]; | |
608 | SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */ | |
609 | SUBKEY_R(13) = subR[12] ^ subR[14]; | |
610 | SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */ | |
611 | SUBKEY_R(14) = subR[13] ^ subR[15]; | |
1721a812 DV |
612 | tl = subL[18] ^ (subR[18] & ~subR[16]); |
613 | dw = tl & subL[16], /* FL(kl3) */ | |
3a5e5f81 DV |
614 | tr = subR[18] ^ ROL1(dw); |
615 | SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */ | |
616 | SUBKEY_R(15) = subR[14] ^ tr; | |
617 | SUBKEY_L(16) = subL[16]; /* FL(kl3) */ | |
618 | SUBKEY_R(16) = subR[16]; | |
619 | SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */ | |
620 | SUBKEY_R(17) = subR[17]; | |
1721a812 DV |
621 | tl = subL[15] ^ (subR[15] & ~subR[17]); |
622 | dw = tl & subL[17], /* FLinv(kl4) */ | |
3a5e5f81 DV |
623 | tr = subR[15] ^ ROL1(dw); |
624 | SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */ | |
625 | SUBKEY_R(18) = tr ^ subR[19]; | |
626 | SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */ | |
627 | SUBKEY_R(19) = subR[18] ^ subR[20]; | |
628 | SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */ | |
629 | SUBKEY_R(20) = subR[19] ^ subR[21]; | |
630 | SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */ | |
631 | SUBKEY_R(21) = subR[20] ^ subR[22]; | |
632 | SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */ | |
633 | SUBKEY_R(22) = subR[21] ^ subR[23]; | |
634 | SUBKEY_L(23) = subL[22]; /* round 18 */ | |
635 | SUBKEY_R(23) = subR[22]; | |
636 | SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */ | |
637 | SUBKEY_R(24) = subR[24] ^ subR[23]; | |
d64beac0 NT |
638 | |
639 | /* apply the inverse of the last half of P-function */ | |
d3e74805 | 640 | camellia_setup_tail(subkey, 24); |
d64beac0 NT |
641 | } |
642 | ||
d64beac0 NT |
643 | static void camellia_setup256(const unsigned char *key, u32 *subkey) |
644 | { | |
1ce73e8d DV |
645 | u32 kll, klr, krl, krr; /* left half of key */ |
646 | u32 krll, krlr, krrl, krrr; /* right half of key */ | |
d64beac0 NT |
647 | u32 il, ir, t0, t1, w0, w1; /* temporary variables */ |
648 | u32 kw4l, kw4r, dw, tl, tr; | |
649 | u32 subL[34]; | |
650 | u32 subR[34]; | |
651 | ||
652 | /** | |
653 | * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr) | |
654 | * (|| is concatination) | |
655 | */ | |
1ce73e8d DV |
656 | GETU32(kll, key ); |
657 | GETU32(klr, key + 4); | |
658 | GETU32(krl, key + 8); | |
659 | GETU32(krr, key + 12); | |
660 | GETU32(krll, key + 16); | |
661 | GETU32(krlr, key + 20); | |
662 | GETU32(krrl, key + 24); | |
663 | GETU32(krrr, key + 28); | |
d64beac0 NT |
664 | |
665 | /* generate KL dependent subkeys */ | |
666 | /* kw1 */ | |
1721a812 | 667 | subL[0] = kll; subR[0] = klr; |
d64beac0 | 668 | /* kw2 */ |
1721a812 | 669 | subL[1] = krl; subR[1] = krr; |
3a5e5f81 | 670 | ROLDQo32(kll, klr, krl, krr, w0, w1, 45); |
d64beac0 | 671 | /* k9 */ |
1721a812 | 672 | subL[12] = kll; subR[12] = klr; |
d64beac0 | 673 | /* k10 */ |
1721a812 | 674 | subL[13] = krl; subR[13] = krr; |
3a5e5f81 | 675 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 676 | /* kl3 */ |
1721a812 | 677 | subL[16] = kll; subR[16] = klr; |
d64beac0 | 678 | /* kl4 */ |
1721a812 | 679 | subL[17] = krl; subR[17] = krr; |
3a5e5f81 | 680 | ROLDQ(kll, klr, krl, krr, w0, w1, 17); |
d64beac0 | 681 | /* k17 */ |
1721a812 | 682 | subL[22] = kll; subR[22] = klr; |
d64beac0 | 683 | /* k18 */ |
1721a812 | 684 | subL[23] = krl; subR[23] = krr; |
3a5e5f81 | 685 | ROLDQo32(kll, klr, krl, krr, w0, w1, 34); |
d64beac0 | 686 | /* k23 */ |
1721a812 | 687 | subL[30] = kll; subR[30] = klr; |
d64beac0 | 688 | /* k24 */ |
1721a812 | 689 | subL[31] = krl; subR[31] = krr; |
d64beac0 NT |
690 | |
691 | /* generate KR dependent subkeys */ | |
3a5e5f81 | 692 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15); |
d64beac0 | 693 | /* k3 */ |
1721a812 | 694 | subL[4] = krll; subR[4] = krlr; |
d64beac0 | 695 | /* k4 */ |
1721a812 | 696 | subL[5] = krrl; subR[5] = krrr; |
3a5e5f81 | 697 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15); |
d64beac0 | 698 | /* kl1 */ |
1721a812 | 699 | subL[8] = krll; subR[8] = krlr; |
d64beac0 | 700 | /* kl2 */ |
1721a812 | 701 | subL[9] = krrl; subR[9] = krrr; |
3a5e5f81 | 702 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); |
d64beac0 | 703 | /* k13 */ |
1721a812 | 704 | subL[18] = krll; subR[18] = krlr; |
d64beac0 | 705 | /* k14 */ |
1721a812 | 706 | subL[19] = krrl; subR[19] = krrr; |
3a5e5f81 | 707 | ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34); |
d64beac0 | 708 | /* k19 */ |
1721a812 | 709 | subL[26] = krll; subR[26] = krlr; |
d64beac0 | 710 | /* k20 */ |
1721a812 | 711 | subL[27] = krrl; subR[27] = krrr; |
3a5e5f81 | 712 | ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34); |
d64beac0 NT |
713 | |
714 | /* generate KA */ | |
1721a812 DV |
715 | kll = subL[0] ^ krll; klr = subR[0] ^ krlr; |
716 | krl = subL[1] ^ krrl; krr = subR[1] ^ krrr; | |
d64beac0 NT |
717 | CAMELLIA_F(kll, klr, |
718 | CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, | |
719 | w0, w1, il, ir, t0, t1); | |
720 | krl ^= w0; krr ^= w1; | |
721 | CAMELLIA_F(krl, krr, | |
722 | CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, | |
723 | kll, klr, il, ir, t0, t1); | |
724 | kll ^= krll; klr ^= krlr; | |
725 | CAMELLIA_F(kll, klr, | |
726 | CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, | |
727 | krl, krr, il, ir, t0, t1); | |
728 | krl ^= w0 ^ krrl; krr ^= w1 ^ krrr; | |
729 | CAMELLIA_F(krl, krr, | |
730 | CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, | |
731 | w0, w1, il, ir, t0, t1); | |
732 | kll ^= w0; klr ^= w1; | |
733 | ||
734 | /* generate KB */ | |
735 | krll ^= kll; krlr ^= klr; | |
736 | krrl ^= krl; krrr ^= krr; | |
737 | CAMELLIA_F(krll, krlr, | |
738 | CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R, | |
739 | w0, w1, il, ir, t0, t1); | |
740 | krrl ^= w0; krrr ^= w1; | |
741 | CAMELLIA_F(krrl, krrr, | |
742 | CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R, | |
743 | w0, w1, il, ir, t0, t1); | |
744 | krll ^= w0; krlr ^= w1; | |
745 | ||
746 | /* generate KA dependent subkeys */ | |
3a5e5f81 | 747 | ROLDQ(kll, klr, krl, krr, w0, w1, 15); |
d64beac0 | 748 | /* k5 */ |
1721a812 | 749 | subL[6] = kll; subR[6] = klr; |
d64beac0 | 750 | /* k6 */ |
1721a812 | 751 | subL[7] = krl; subR[7] = krr; |
3a5e5f81 | 752 | ROLDQ(kll, klr, krl, krr, w0, w1, 30); |
d64beac0 | 753 | /* k11 */ |
1721a812 | 754 | subL[14] = kll; subR[14] = klr; |
d64beac0 | 755 | /* k12 */ |
1721a812 | 756 | subL[15] = krl; subR[15] = krr; |
d64beac0 NT |
757 | /* rotation left shift 32bit */ |
758 | /* kl5 */ | |
1721a812 | 759 | subL[24] = klr; subR[24] = krl; |
d64beac0 | 760 | /* kl6 */ |
1721a812 | 761 | subL[25] = krr; subR[25] = kll; |
d64beac0 | 762 | /* rotation left shift 49 from k11,k12 -> k21,k22 */ |
3a5e5f81 | 763 | ROLDQo32(kll, klr, krl, krr, w0, w1, 49); |
d64beac0 | 764 | /* k21 */ |
1721a812 | 765 | subL[28] = kll; subR[28] = klr; |
d64beac0 | 766 | /* k22 */ |
1721a812 | 767 | subL[29] = krl; subR[29] = krr; |
d64beac0 NT |
768 | |
769 | /* generate KB dependent subkeys */ | |
770 | /* k1 */ | |
1721a812 | 771 | subL[2] = krll; subR[2] = krlr; |
d64beac0 | 772 | /* k2 */ |
1721a812 | 773 | subL[3] = krrl; subR[3] = krrr; |
3a5e5f81 | 774 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); |
d64beac0 | 775 | /* k7 */ |
1721a812 | 776 | subL[10] = krll; subR[10] = krlr; |
d64beac0 | 777 | /* k8 */ |
1721a812 | 778 | subL[11] = krrl; subR[11] = krrr; |
3a5e5f81 | 779 | ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); |
d64beac0 | 780 | /* k15 */ |
1721a812 | 781 | subL[20] = krll; subR[20] = krlr; |
d64beac0 | 782 | /* k16 */ |
1721a812 | 783 | subL[21] = krrl; subR[21] = krrr; |
3a5e5f81 | 784 | ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51); |
d64beac0 | 785 | /* kw3 */ |
1721a812 | 786 | subL[32] = krll; subR[32] = krlr; |
d64beac0 | 787 | /* kw4 */ |
1721a812 | 788 | subL[33] = krrl; subR[33] = krrr; |
d64beac0 NT |
789 | |
790 | /* absorb kw2 to other subkeys */ | |
791 | /* round 2 */ | |
1721a812 | 792 | subL[3] ^= subL[1]; subR[3] ^= subR[1]; |
d64beac0 | 793 | /* round 4 */ |
1721a812 | 794 | subL[5] ^= subL[1]; subR[5] ^= subR[1]; |
d64beac0 | 795 | /* round 6 */ |
1721a812 DV |
796 | subL[7] ^= subL[1]; subR[7] ^= subR[1]; |
797 | subL[1] ^= subR[1] & ~subR[9]; | |
798 | dw = subL[1] & subL[9], | |
3a5e5f81 | 799 | subR[1] ^= ROL1(dw); /* modified for FLinv(kl2) */ |
d64beac0 | 800 | /* round 8 */ |
1721a812 | 801 | subL[11] ^= subL[1]; subR[11] ^= subR[1]; |
d64beac0 | 802 | /* round 10 */ |
1721a812 | 803 | subL[13] ^= subL[1]; subR[13] ^= subR[1]; |
d64beac0 | 804 | /* round 12 */ |
1721a812 DV |
805 | subL[15] ^= subL[1]; subR[15] ^= subR[1]; |
806 | subL[1] ^= subR[1] & ~subR[17]; | |
807 | dw = subL[1] & subL[17], | |
3a5e5f81 | 808 | subR[1] ^= ROL1(dw); /* modified for FLinv(kl4) */ |
d64beac0 | 809 | /* round 14 */ |
1721a812 | 810 | subL[19] ^= subL[1]; subR[19] ^= subR[1]; |
d64beac0 | 811 | /* round 16 */ |
1721a812 | 812 | subL[21] ^= subL[1]; subR[21] ^= subR[1]; |
d64beac0 | 813 | /* round 18 */ |
1721a812 DV |
814 | subL[23] ^= subL[1]; subR[23] ^= subR[1]; |
815 | subL[1] ^= subR[1] & ~subR[25]; | |
816 | dw = subL[1] & subL[25], | |
3a5e5f81 | 817 | subR[1] ^= ROL1(dw); /* modified for FLinv(kl6) */ |
d64beac0 | 818 | /* round 20 */ |
1721a812 | 819 | subL[27] ^= subL[1]; subR[27] ^= subR[1]; |
d64beac0 | 820 | /* round 22 */ |
1721a812 | 821 | subL[29] ^= subL[1]; subR[29] ^= subR[1]; |
d64beac0 | 822 | /* round 24 */ |
1721a812 | 823 | subL[31] ^= subL[1]; subR[31] ^= subR[1]; |
d64beac0 | 824 | /* kw3 */ |
1721a812 | 825 | subL[32] ^= subL[1]; subR[32] ^= subR[1]; |
d64beac0 NT |
826 | |
827 | /* absorb kw4 to other subkeys */ | |
1721a812 | 828 | kw4l = subL[33]; kw4r = subR[33]; |
d64beac0 | 829 | /* round 23 */ |
1721a812 | 830 | subL[30] ^= kw4l; subR[30] ^= kw4r; |
d64beac0 | 831 | /* round 21 */ |
1721a812 | 832 | subL[28] ^= kw4l; subR[28] ^= kw4r; |
d64beac0 | 833 | /* round 19 */ |
1721a812 DV |
834 | subL[26] ^= kw4l; subR[26] ^= kw4r; |
835 | kw4l ^= kw4r & ~subR[24]; | |
836 | dw = kw4l & subL[24], | |
3a5e5f81 | 837 | kw4r ^= ROL1(dw); /* modified for FL(kl5) */ |
d64beac0 | 838 | /* round 17 */ |
1721a812 | 839 | subL[22] ^= kw4l; subR[22] ^= kw4r; |
d64beac0 | 840 | /* round 15 */ |
1721a812 | 841 | subL[20] ^= kw4l; subR[20] ^= kw4r; |
d64beac0 | 842 | /* round 13 */ |
1721a812 DV |
843 | subL[18] ^= kw4l; subR[18] ^= kw4r; |
844 | kw4l ^= kw4r & ~subR[16]; | |
845 | dw = kw4l & subL[16], | |
3a5e5f81 | 846 | kw4r ^= ROL1(dw); /* modified for FL(kl3) */ |
d64beac0 | 847 | /* round 11 */ |
1721a812 | 848 | subL[14] ^= kw4l; subR[14] ^= kw4r; |
d64beac0 | 849 | /* round 9 */ |
1721a812 | 850 | subL[12] ^= kw4l; subR[12] ^= kw4r; |
d64beac0 | 851 | /* round 7 */ |
1721a812 DV |
852 | subL[10] ^= kw4l; subR[10] ^= kw4r; |
853 | kw4l ^= kw4r & ~subR[8]; | |
854 | dw = kw4l & subL[8], | |
3a5e5f81 | 855 | kw4r ^= ROL1(dw); /* modified for FL(kl1) */ |
d64beac0 | 856 | /* round 5 */ |
1721a812 | 857 | subL[6] ^= kw4l; subR[6] ^= kw4r; |
d64beac0 | 858 | /* round 3 */ |
1721a812 | 859 | subL[4] ^= kw4l; subR[4] ^= kw4r; |
d64beac0 | 860 | /* round 1 */ |
1721a812 | 861 | subL[2] ^= kw4l; subR[2] ^= kw4r; |
d64beac0 | 862 | /* kw1 */ |
1721a812 | 863 | subL[0] ^= kw4l; subR[0] ^= kw4r; |
d64beac0 NT |
864 | |
865 | /* key XOR is end of F-function */ | |
3a5e5f81 DV |
866 | SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */ |
867 | SUBKEY_R(0) = subR[0] ^ subR[2]; | |
868 | SUBKEY_L(2) = subL[3]; /* round 1 */ | |
869 | SUBKEY_R(2) = subR[3]; | |
870 | SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */ | |
871 | SUBKEY_R(3) = subR[2] ^ subR[4]; | |
872 | SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */ | |
873 | SUBKEY_R(4) = subR[3] ^ subR[5]; | |
874 | SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */ | |
875 | SUBKEY_R(5) = subR[4] ^ subR[6]; | |
876 | SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */ | |
877 | SUBKEY_R(6) = subR[5] ^ subR[7]; | |
1721a812 DV |
878 | tl = subL[10] ^ (subR[10] & ~subR[8]); |
879 | dw = tl & subL[8], /* FL(kl1) */ | |
3a5e5f81 DV |
880 | tr = subR[10] ^ ROL1(dw); |
881 | SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */ | |
882 | SUBKEY_R(7) = subR[6] ^ tr; | |
883 | SUBKEY_L(8) = subL[8]; /* FL(kl1) */ | |
884 | SUBKEY_R(8) = subR[8]; | |
885 | SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */ | |
886 | SUBKEY_R(9) = subR[9]; | |
1721a812 DV |
887 | tl = subL[7] ^ (subR[7] & ~subR[9]); |
888 | dw = tl & subL[9], /* FLinv(kl2) */ | |
3a5e5f81 DV |
889 | tr = subR[7] ^ ROL1(dw); |
890 | SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */ | |
891 | SUBKEY_R(10) = tr ^ subR[11]; | |
892 | SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */ | |
893 | SUBKEY_R(11) = subR[10] ^ subR[12]; | |
894 | SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */ | |
895 | SUBKEY_R(12) = subR[11] ^ subR[13]; | |
896 | SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */ | |
897 | SUBKEY_R(13) = subR[12] ^ subR[14]; | |
898 | SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */ | |
899 | SUBKEY_R(14) = subR[13] ^ subR[15]; | |
1721a812 DV |
900 | tl = subL[18] ^ (subR[18] & ~subR[16]); |
901 | dw = tl & subL[16], /* FL(kl3) */ | |
3a5e5f81 DV |
902 | tr = subR[18] ^ ROL1(dw); |
903 | SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */ | |
904 | SUBKEY_R(15) = subR[14] ^ tr; | |
905 | SUBKEY_L(16) = subL[16]; /* FL(kl3) */ | |
906 | SUBKEY_R(16) = subR[16]; | |
907 | SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */ | |
908 | SUBKEY_R(17) = subR[17]; | |
1721a812 DV |
909 | tl = subL[15] ^ (subR[15] & ~subR[17]); |
910 | dw = tl & subL[17], /* FLinv(kl4) */ | |
3a5e5f81 DV |
911 | tr = subR[15] ^ ROL1(dw); |
912 | SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */ | |
913 | SUBKEY_R(18) = tr ^ subR[19]; | |
914 | SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */ | |
915 | SUBKEY_R(19) = subR[18] ^ subR[20]; | |
916 | SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */ | |
917 | SUBKEY_R(20) = subR[19] ^ subR[21]; | |
918 | SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */ | |
919 | SUBKEY_R(21) = subR[20] ^ subR[22]; | |
920 | SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */ | |
921 | SUBKEY_R(22) = subR[21] ^ subR[23]; | |
922 | tl = subL[26] ^ (subR[26] & ~subR[24]); | |
1721a812 | 923 | dw = tl & subL[24], /* FL(kl5) */ |
3a5e5f81 DV |
924 | tr = subR[26] ^ ROL1(dw); |
925 | SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */ | |
926 | SUBKEY_R(23) = subR[22] ^ tr; | |
927 | SUBKEY_L(24) = subL[24]; /* FL(kl5) */ | |
928 | SUBKEY_R(24) = subR[24]; | |
929 | SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */ | |
930 | SUBKEY_R(25) = subR[25]; | |
931 | tl = subL[23] ^ (subR[23] & ~subR[25]); | |
1721a812 | 932 | dw = tl & subL[25], /* FLinv(kl6) */ |
3a5e5f81 DV |
933 | tr = subR[23] ^ ROL1(dw); |
934 | SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */ | |
935 | SUBKEY_R(26) = tr ^ subR[27]; | |
936 | SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */ | |
937 | SUBKEY_R(27) = subR[26] ^ subR[28]; | |
938 | SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */ | |
939 | SUBKEY_R(28) = subR[27] ^ subR[29]; | |
940 | SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */ | |
941 | SUBKEY_R(29) = subR[28] ^ subR[30]; | |
942 | SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */ | |
943 | SUBKEY_R(30) = subR[29] ^ subR[31]; | |
944 | SUBKEY_L(31) = subL[30]; /* round 24 */ | |
945 | SUBKEY_R(31) = subR[30]; | |
946 | SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */ | |
947 | SUBKEY_R(32) = subR[32] ^ subR[31]; | |
d64beac0 NT |
948 | |
949 | /* apply the inverse of the last half of P-function */ | |
d3e74805 | 950 | camellia_setup_tail(subkey, 32); |
d64beac0 NT |
951 | } |
952 | ||
953 | static void camellia_setup192(const unsigned char *key, u32 *subkey) | |
954 | { | |
955 | unsigned char kk[32]; | |
956 | u32 krll, krlr, krrl,krrr; | |
957 | ||
958 | memcpy(kk, key, 24); | |
1721a812 DV |
959 | memcpy((unsigned char *)&krll, key+16, 4); |
960 | memcpy((unsigned char *)&krlr, key+20, 4); | |
d64beac0 NT |
961 | krrl = ~krll; |
962 | krrr = ~krlr; | |
963 | memcpy(kk+24, (unsigned char *)&krrl, 4); | |
964 | memcpy(kk+28, (unsigned char *)&krrr, 4); | |
965 | camellia_setup256(kk, subkey); | |
d64beac0 NT |
966 | } |
967 | ||
968 | ||
2ddae4a6 DV |
969 | /* |
970 | * Encrypt/decrypt | |
971 | */ | |
972 | #define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) \ | |
973 | do { \ | |
974 | t0 = kll; \ | |
975 | t2 = krr; \ | |
976 | t0 &= ll; \ | |
977 | t2 |= rr; \ | |
978 | rl ^= t2; \ | |
979 | lr ^= ROL1(t0); \ | |
980 | t3 = krl; \ | |
981 | t1 = klr; \ | |
982 | t3 &= rl; \ | |
983 | t1 |= lr; \ | |
984 | ll ^= t1; \ | |
985 | rr ^= ROL1(t3); \ | |
986 | } while(0) | |
987 | ||
988 | #define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) \ | |
989 | do { \ | |
990 | ir = camellia_sp1110[(u8)xr]; \ | |
991 | il = camellia_sp1110[ (xl >> 24)]; \ | |
992 | ir ^= camellia_sp0222[ (xr >> 24)]; \ | |
993 | il ^= camellia_sp0222[(u8)(xl >> 16)]; \ | |
994 | ir ^= camellia_sp3033[(u8)(xr >> 16)]; \ | |
995 | il ^= camellia_sp3033[(u8)(xl >> 8)]; \ | |
996 | ir ^= camellia_sp4404[(u8)(xr >> 8)]; \ | |
997 | il ^= camellia_sp4404[(u8)xl]; \ | |
998 | il ^= kl; \ | |
999 | ir ^= il ^ kr; \ | |
1000 | yl ^= ir; \ | |
1001 | yr ^= ROR8(il) ^ ir; \ | |
1002 | } while(0) | |
1003 | ||
acca79a6 DV |
1004 | /* max = 24: 128bit encrypt, max = 32: 256bit encrypt */ |
1005 | static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max) | |
d64beac0 | 1006 | { |
3a5e5f81 | 1007 | u32 il,ir,t0,t1; /* temporary variables */ |
d64beac0 | 1008 | |
1721a812 | 1009 | /* pre whitening but absorb kw2 */ |
acca79a6 DV |
1010 | io[0] ^= SUBKEY_L(0); |
1011 | io[1] ^= SUBKEY_R(0); | |
d64beac0 | 1012 | |
1721a812 | 1013 | /* main iteration */ |
acca79a6 DV |
1014 | #define ROUNDS(i) do { \ |
1015 | CAMELLIA_ROUNDSM(io[0],io[1], \ | |
1016 | SUBKEY_L(i + 2),SUBKEY_R(i + 2), \ | |
1017 | io[2],io[3],il,ir); \ | |
1018 | CAMELLIA_ROUNDSM(io[2],io[3], \ | |
1019 | SUBKEY_L(i + 3),SUBKEY_R(i + 3), \ | |
1020 | io[0],io[1],il,ir); \ | |
1021 | CAMELLIA_ROUNDSM(io[0],io[1], \ | |
1022 | SUBKEY_L(i + 4),SUBKEY_R(i + 4), \ | |
1023 | io[2],io[3],il,ir); \ | |
1024 | CAMELLIA_ROUNDSM(io[2],io[3], \ | |
1025 | SUBKEY_L(i + 5),SUBKEY_R(i + 5), \ | |
1026 | io[0],io[1],il,ir); \ | |
1027 | CAMELLIA_ROUNDSM(io[0],io[1], \ | |
1028 | SUBKEY_L(i + 6),SUBKEY_R(i + 6), \ | |
1029 | io[2],io[3],il,ir); \ | |
1030 | CAMELLIA_ROUNDSM(io[2],io[3], \ | |
1031 | SUBKEY_L(i + 7),SUBKEY_R(i + 7), \ | |
1032 | io[0],io[1],il,ir); \ | |
1033 | } while (0) | |
1034 | #define FLS(i) do { \ | |
1035 | CAMELLIA_FLS(io[0],io[1],io[2],io[3], \ | |
1036 | SUBKEY_L(i + 0),SUBKEY_R(i + 0), \ | |
1037 | SUBKEY_L(i + 1),SUBKEY_R(i + 1), \ | |
1038 | t0,t1,il,ir); \ | |
1039 | } while (0) | |
1040 | ||
1041 | ROUNDS(0); | |
1042 | FLS(8); | |
1043 | ROUNDS(8); | |
1044 | FLS(16); | |
1045 | ROUNDS(16); | |
1046 | if (max == 32) { | |
1047 | FLS(24); | |
1048 | ROUNDS(24); | |
1049 | } | |
d64beac0 | 1050 | |
acca79a6 DV |
1051 | #undef ROUNDS |
1052 | #undef FLS | |
d64beac0 NT |
1053 | |
1054 | /* post whitening but kw4 */ | |
acca79a6 DV |
1055 | io[2] ^= SUBKEY_L(max); |
1056 | io[3] ^= SUBKEY_R(max); | |
1057 | /* NB: io[0],[1] should be swapped with [2],[3] by caller! */ | |
d64beac0 NT |
1058 | } |
1059 | ||
acca79a6 | 1060 | static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i) |
d64beac0 | 1061 | { |
acca79a6 | 1062 | u32 il,ir,t0,t1; /* temporary variables */ |
d64beac0 | 1063 | |
1721a812 | 1064 | /* pre whitening but absorb kw2 */ |
acca79a6 DV |
1065 | io[0] ^= SUBKEY_L(i); |
1066 | io[1] ^= SUBKEY_R(i); | |
d64beac0 NT |
1067 | |
1068 | /* main iteration */ | |
acca79a6 DV |
1069 | #define ROUNDS(i) do { \ |
1070 | CAMELLIA_ROUNDSM(io[0],io[1], \ | |
1071 | SUBKEY_L(i + 7),SUBKEY_R(i + 7), \ | |
1072 | io[2],io[3],il,ir); \ | |
1073 | CAMELLIA_ROUNDSM(io[2],io[3], \ | |
1074 | SUBKEY_L(i + 6),SUBKEY_R(i + 6), \ | |
1075 | io[0],io[1],il,ir); \ | |
1076 | CAMELLIA_ROUNDSM(io[0],io[1], \ | |
1077 | SUBKEY_L(i + 5),SUBKEY_R(i + 5), \ | |
1078 | io[2],io[3],il,ir); \ | |
1079 | CAMELLIA_ROUNDSM(io[2],io[3], \ | |
1080 | SUBKEY_L(i + 4),SUBKEY_R(i + 4), \ | |
1081 | io[0],io[1],il,ir); \ | |
1082 | CAMELLIA_ROUNDSM(io[0],io[1], \ | |
1083 | SUBKEY_L(i + 3),SUBKEY_R(i + 3), \ | |
1084 | io[2],io[3],il,ir); \ | |
1085 | CAMELLIA_ROUNDSM(io[2],io[3], \ | |
1086 | SUBKEY_L(i + 2),SUBKEY_R(i + 2), \ | |
1087 | io[0],io[1],il,ir); \ | |
1088 | } while (0) | |
1089 | #define FLS(i) do { \ | |
1090 | CAMELLIA_FLS(io[0],io[1],io[2],io[3], \ | |
1091 | SUBKEY_L(i + 1),SUBKEY_R(i + 1), \ | |
1092 | SUBKEY_L(i + 0),SUBKEY_R(i + 0), \ | |
1093 | t0,t1,il,ir); \ | |
1094 | } while (0) | |
1095 | ||
1096 | if (i == 32) { | |
1097 | ROUNDS(24); | |
1098 | FLS(24); | |
1099 | } | |
1100 | ROUNDS(16); | |
1101 | FLS(16); | |
1102 | ROUNDS(8); | |
1103 | FLS(8); | |
1104 | ROUNDS(0); | |
d64beac0 | 1105 | |
acca79a6 DV |
1106 | #undef ROUNDS |
1107 | #undef FLS | |
d64beac0 NT |
1108 | |
1109 | /* post whitening but kw4 */ | |
acca79a6 DV |
1110 | io[2] ^= SUBKEY_L(0); |
1111 | io[3] ^= SUBKEY_R(0); | |
1112 | /* NB: 0,1 should be swapped with 2,3 by caller! */ | |
d64beac0 NT |
1113 | } |
1114 | ||
1115 | ||
1721a812 DV |
1116 | struct camellia_ctx { |
1117 | int key_length; | |
2ddae4a6 | 1118 | u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)]; |
1721a812 DV |
1119 | }; |
1120 | ||
d64beac0 NT |
1121 | static int |
1122 | camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key, | |
1123 | unsigned int key_len) | |
1124 | { | |
1125 | struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); | |
1126 | const unsigned char *key = (const unsigned char *)in_key; | |
1127 | u32 *flags = &tfm->crt_flags; | |
1128 | ||
1129 | if (key_len != 16 && key_len != 24 && key_len != 32) { | |
1130 | *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; | |
1131 | return -EINVAL; | |
1132 | } | |
1133 | ||
1134 | cctx->key_length = key_len; | |
1135 | ||
1721a812 | 1136 | switch (key_len) { |
d64beac0 NT |
1137 | case 16: |
1138 | camellia_setup128(key, cctx->key_table); | |
1139 | break; | |
1140 | case 24: | |
1141 | camellia_setup192(key, cctx->key_table); | |
1142 | break; | |
1143 | case 32: | |
1144 | camellia_setup256(key, cctx->key_table); | |
1145 | break; | |
d64beac0 NT |
1146 | } |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
d64beac0 NT |
1151 | static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) |
1152 | { | |
1153 | const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); | |
1154 | const __be32 *src = (const __be32 *)in; | |
1155 | __be32 *dst = (__be32 *)out; | |
1156 | ||
3a5e5f81 | 1157 | u32 tmp[4]; |
d64beac0 | 1158 | |
3a5e5f81 DV |
1159 | tmp[0] = be32_to_cpu(src[0]); |
1160 | tmp[1] = be32_to_cpu(src[1]); | |
1161 | tmp[2] = be32_to_cpu(src[2]); | |
1162 | tmp[3] = be32_to_cpu(src[3]); | |
d64beac0 | 1163 | |
acca79a6 DV |
1164 | camellia_do_encrypt(cctx->key_table, tmp, |
1165 | cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */ | |
1166 | ); | |
d64beac0 | 1167 | |
acca79a6 DV |
1168 | /* do_encrypt returns 0,1 swapped with 2,3 */ |
1169 | dst[0] = cpu_to_be32(tmp[2]); | |
1170 | dst[1] = cpu_to_be32(tmp[3]); | |
1171 | dst[2] = cpu_to_be32(tmp[0]); | |
1172 | dst[3] = cpu_to_be32(tmp[1]); | |
d64beac0 NT |
1173 | } |
1174 | ||
d64beac0 NT |
1175 | static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) |
1176 | { | |
1177 | const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); | |
1178 | const __be32 *src = (const __be32 *)in; | |
1179 | __be32 *dst = (__be32 *)out; | |
1180 | ||
3a5e5f81 | 1181 | u32 tmp[4]; |
d64beac0 | 1182 | |
3a5e5f81 DV |
1183 | tmp[0] = be32_to_cpu(src[0]); |
1184 | tmp[1] = be32_to_cpu(src[1]); | |
1185 | tmp[2] = be32_to_cpu(src[2]); | |
1186 | tmp[3] = be32_to_cpu(src[3]); | |
d64beac0 | 1187 | |
acca79a6 DV |
1188 | camellia_do_decrypt(cctx->key_table, tmp, |
1189 | cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */ | |
1190 | ); | |
d64beac0 | 1191 | |
acca79a6 DV |
1192 | /* do_decrypt returns 0,1 swapped with 2,3 */ |
1193 | dst[0] = cpu_to_be32(tmp[2]); | |
1194 | dst[1] = cpu_to_be32(tmp[3]); | |
1195 | dst[2] = cpu_to_be32(tmp[0]); | |
1196 | dst[3] = cpu_to_be32(tmp[1]); | |
d64beac0 NT |
1197 | } |
1198 | ||
d64beac0 NT |
1199 | static struct crypto_alg camellia_alg = { |
1200 | .cra_name = "camellia", | |
1201 | .cra_driver_name = "camellia-generic", | |
1202 | .cra_priority = 100, | |
1203 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER, | |
1204 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, | |
1205 | .cra_ctxsize = sizeof(struct camellia_ctx), | |
1206 | .cra_alignmask = 3, | |
1207 | .cra_module = THIS_MODULE, | |
1208 | .cra_list = LIST_HEAD_INIT(camellia_alg.cra_list), | |
1209 | .cra_u = { | |
1210 | .cipher = { | |
1211 | .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE, | |
1212 | .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE, | |
1213 | .cia_setkey = camellia_set_key, | |
1214 | .cia_encrypt = camellia_encrypt, | |
1215 | .cia_decrypt = camellia_decrypt | |
1216 | } | |
1217 | } | |
1218 | }; | |
1219 | ||
1220 | static int __init camellia_init(void) | |
1221 | { | |
1222 | return crypto_register_alg(&camellia_alg); | |
1223 | } | |
1224 | ||
d64beac0 NT |
1225 | static void __exit camellia_fini(void) |
1226 | { | |
1227 | crypto_unregister_alg(&camellia_alg); | |
1228 | } | |
1229 | ||
d64beac0 NT |
1230 | module_init(camellia_init); |
1231 | module_exit(camellia_fini); | |
1232 | ||
d64beac0 NT |
1233 | MODULE_DESCRIPTION("Camellia Cipher Algorithm"); |
1234 | MODULE_LICENSE("GPL"); |