projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
crypto: tcrypt - add more camellia tests
[deliverable/linux.git] / crypto / camellia.c
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
386 /* absorb kw2 to other subkeys */
387 /* round 2 */
388 subL[3] ^= subL[1]; subR[3] ^= subR[1];
389 /* round 4 */
390 subL[5] ^= subL[1]; subR[5] ^= subR[1];
391 /* round 6 */
392 subL[7] ^= subL[1]; subR[7] ^= subR[1];
393 subL[1] ^= subR[1] & ~subR[9];
394 dw = subL[1] & subL[9],
395 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl2) */
396 /* round 8 */
397 subL[11] ^= subL[1]; subR[11] ^= subR[1];
398 /* round 10 */
399 subL[13] ^= subL[1]; subR[13] ^= subR[1];
400 /* round 12 */
401 subL[15] ^= subL[1]; subR[15] ^= subR[1];
402 subL[1] ^= subR[1] & ~subR[17];
403 dw = subL[1] & subL[17],
404 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl4) */
405 /* round 14 */
406 subL[19] ^= subL[1]; subR[19] ^= subR[1];
407 /* round 16 */
408 subL[21] ^= subL[1]; subR[21] ^= subR[1];
409 /* round 18 */
410 subL[23] ^= subL[1]; subR[23] ^= subR[1];
411 if (max == 24) {
412 /* kw3 */
413 subL[24] ^= subL[1]; subR[24] ^= subR[1];
414
415 /* absorb kw4 to other subkeys */
416 kw4l = subL[25]; kw4r = subR[25];
417 } else {
418 subL[1] ^= subR[1] & ~subR[25];
419 dw = subL[1] & subL[25],
420 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl6) */
421 /* round 20 */
422 subL[27] ^= subL[1]; subR[27] ^= subR[1];
423 /* round 22 */
424 subL[29] ^= subL[1]; subR[29] ^= subR[1];
425 /* round 24 */
426 subL[31] ^= subL[1]; subR[31] ^= subR[1];
427 /* kw3 */
428 subL[32] ^= subL[1]; subR[32] ^= subR[1];
429
430 /* absorb kw4 to other subkeys */
431 kw4l = subL[33]; kw4r = subR[33];
432 /* round 23 */
433 subL[30] ^= kw4l; subR[30] ^= kw4r;
434 /* round 21 */
435 subL[28] ^= kw4l; subR[28] ^= kw4r;
436 /* round 19 */
437 subL[26] ^= kw4l; subR[26] ^= kw4r;
438 kw4l ^= kw4r & ~subR[24];
439 dw = kw4l & subL[24],
440 kw4r ^= rol32(dw, 1); /* modified for FL(kl5) */
441 }
442 /* round 17 */
443 subL[22] ^= kw4l; subR[22] ^= kw4r;
444 /* round 15 */
445 subL[20] ^= kw4l; subR[20] ^= kw4r;
446 /* round 13 */
447 subL[18] ^= kw4l; subR[18] ^= kw4r;
448 kw4l ^= kw4r & ~subR[16];
449 dw = kw4l & subL[16],
450 kw4r ^= rol32(dw, 1); /* modified for FL(kl3) */
451 /* round 11 */
452 subL[14] ^= kw4l; subR[14] ^= kw4r;
453 /* round 9 */
454 subL[12] ^= kw4l; subR[12] ^= kw4r;
455 /* round 7 */
456 subL[10] ^= kw4l; subR[10] ^= kw4r;
457 kw4l ^= kw4r & ~subR[8];
458 dw = kw4l & subL[8],
459 kw4r ^= rol32(dw, 1); /* modified for FL(kl1) */
460 /* round 5 */
461 subL[6] ^= kw4l; subR[6] ^= kw4r;
462 /* round 3 */
463 subL[4] ^= kw4l; subR[4] ^= kw4r;
464 /* round 1 */
465 subL[2] ^= kw4l; subR[2] ^= kw4r;
466 /* kw1 */
467 subL[0] ^= kw4l; subR[0] ^= kw4r;
468
469 /* key XOR is end of F-function */
470 SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */
471 SUBKEY_R(0) = subR[0] ^ subR[2];
472 SUBKEY_L(2) = subL[3]; /* round 1 */
473 SUBKEY_R(2) = subR[3];
474 SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */
475 SUBKEY_R(3) = subR[2] ^ subR[4];
476 SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */
477 SUBKEY_R(4) = subR[3] ^ subR[5];
478 SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */
479 SUBKEY_R(5) = subR[4] ^ subR[6];
480 SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */
481 SUBKEY_R(6) = subR[5] ^ subR[7];
482 tl = subL[10] ^ (subR[10] & ~subR[8]);
483 dw = tl & subL[8], /* FL(kl1) */
484 tr = subR[10] ^ rol32(dw, 1);
485 SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
486 SUBKEY_R(7) = subR[6] ^ tr;
487 SUBKEY_L(8) = subL[8]; /* FL(kl1) */
488 SUBKEY_R(8) = subR[8];
489 SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */
490 SUBKEY_R(9) = subR[9];
491 tl = subL[7] ^ (subR[7] & ~subR[9]);
492 dw = tl & subL[9], /* FLinv(kl2) */
493 tr = subR[7] ^ rol32(dw, 1);
494 SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
495 SUBKEY_R(10) = tr ^ subR[11];
496 SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
497 SUBKEY_R(11) = subR[10] ^ subR[12];
498 SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */
499 SUBKEY_R(12) = subR[11] ^ subR[13];
500 SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */
501 SUBKEY_R(13) = subR[12] ^ subR[14];
502 SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */
503 SUBKEY_R(14) = subR[13] ^ subR[15];
504 tl = subL[18] ^ (subR[18] & ~subR[16]);
505 dw = tl & subL[16], /* FL(kl3) */
506 tr = subR[18] ^ rol32(dw, 1);
507 SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
508 SUBKEY_R(15) = subR[14] ^ tr;
509 SUBKEY_L(16) = subL[16]; /* FL(kl3) */
510 SUBKEY_R(16) = subR[16];
511 SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */
512 SUBKEY_R(17) = subR[17];
513 tl = subL[15] ^ (subR[15] & ~subR[17]);
514 dw = tl & subL[17], /* FLinv(kl4) */
515 tr = subR[15] ^ rol32(dw, 1);
516 SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
517 SUBKEY_R(18) = tr ^ subR[19];
518 SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
519 SUBKEY_R(19) = subR[18] ^ subR[20];
520 SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */
521 SUBKEY_R(20) = subR[19] ^ subR[21];
522 SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */
523 SUBKEY_R(21) = subR[20] ^ subR[22];
524 SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */
525 SUBKEY_R(22) = subR[21] ^ subR[23];
526 if (max == 24) {
527 SUBKEY_L(23) = subL[22]; /* round 18 */
528 SUBKEY_R(23) = subR[22];
529 SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */
530 SUBKEY_R(24) = subR[24] ^ subR[23];
531 } else {
532 tl = subL[26] ^ (subR[26] & ~subR[24]);
533 dw = tl & subL[24], /* FL(kl5) */
534 tr = subR[26] ^ rol32(dw, 1);
535 SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */
536 SUBKEY_R(23) = subR[22] ^ tr;
537 SUBKEY_L(24) = subL[24]; /* FL(kl5) */
538 SUBKEY_R(24) = subR[24];
539 SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */
540 SUBKEY_R(25) = subR[25];
541 tl = subL[23] ^ (subR[23] & ~subR[25]);
542 dw = tl & subL[25], /* FLinv(kl6) */
543 tr = subR[23] ^ rol32(dw, 1);
544 SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */
545 SUBKEY_R(26) = tr ^ subR[27];
546 SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */
547 SUBKEY_R(27) = subR[26] ^ subR[28];
548 SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */
549 SUBKEY_R(28) = subR[27] ^ subR[29];
550 SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */
551 SUBKEY_R(29) = subR[28] ^ subR[30];
552 SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */
553 SUBKEY_R(30) = subR[29] ^ subR[31];
554 SUBKEY_L(31) = subL[30]; /* round 24 */
555 SUBKEY_R(31) = subR[30];
556 SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */
557 SUBKEY_R(32) = subR[32] ^ subR[31];
558 }
559 }
560
561 static void camellia_setup128(const unsigned char *key, u32 *subkey)
562 {
563 u32 kll, klr, krl, krr;
564 u32 il, ir, t0, t1, w0, w1;
565 u32 subL[26];
566 u32 subR[26];
567
568 /**
569 * k == kll || klr || krl || krr (|| is concatenation)
570 */
571 kll = get_unaligned_be32(key);
572 klr = get_unaligned_be32(key + 4);
573 krl = get_unaligned_be32(key + 8);
574 krr = get_unaligned_be32(key + 12);
575
576 /* generate KL dependent subkeys */
577 /* kw1 */
578 subL[0] = kll; subR[0] = klr;
579 /* kw2 */
580 subL[1] = krl; subR[1] = krr;
581 /* rotation left shift 15bit */
582 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
583 /* k3 */
584 subL[4] = kll; subR[4] = klr;
585 /* k4 */
586 subL[5] = krl; subR[5] = krr;
587 /* rotation left shift 15+30bit */
588 ROLDQ(kll, klr, krl, krr, w0, w1, 30);
589 /* k7 */
590 subL[10] = kll; subR[10] = klr;
591 /* k8 */
592 subL[11] = krl; subR[11] = krr;
593 /* rotation left shift 15+30+15bit */
594 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
595 /* k10 */
596 subL[13] = krl; subR[13] = krr;
597 /* rotation left shift 15+30+15+17 bit */
598 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
599 /* kl3 */
600 subL[16] = kll; subR[16] = klr;
601 /* kl4 */
602 subL[17] = krl; subR[17] = krr;
603 /* rotation left shift 15+30+15+17+17 bit */
604 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
605 /* k13 */
606 subL[18] = kll; subR[18] = klr;
607 /* k14 */
608 subL[19] = krl; subR[19] = krr;
609 /* rotation left shift 15+30+15+17+17+17 bit */
610 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
611 /* k17 */
612 subL[22] = kll; subR[22] = klr;
613 /* k18 */
614 subL[23] = krl; subR[23] = krr;
615
616 /* generate KA */
617 kll = subL[0]; klr = subR[0];
618 krl = subL[1]; krr = subR[1];
619 CAMELLIA_F(kll, klr,
620 CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
621 w0, w1, il, ir, t0, t1);
622 krl ^= w0; krr ^= w1;
623 CAMELLIA_F(krl, krr,
624 CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
625 kll, klr, il, ir, t0, t1);
626 /* current status == (kll, klr, w0, w1) */
627 CAMELLIA_F(kll, klr,
628 CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
629 krl, krr, il, ir, t0, t1);
630 krl ^= w0; krr ^= w1;
631 CAMELLIA_F(krl, krr,
632 CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
633 w0, w1, il, ir, t0, t1);
634 kll ^= w0; klr ^= w1;
635
636 /* generate KA dependent subkeys */
637 /* k1, k2 */
638 subL[2] = kll; subR[2] = klr;
639 subL[3] = krl; subR[3] = krr;
640 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
641 /* k5,k6 */
642 subL[6] = kll; subR[6] = klr;
643 subL[7] = krl; subR[7] = krr;
644 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
645 /* kl1, kl2 */
646 subL[8] = kll; subR[8] = klr;
647 subL[9] = krl; subR[9] = krr;
648 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
649 /* k9 */
650 subL[12] = kll; subR[12] = klr;
651 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
652 /* k11, k12 */
653 subL[14] = kll; subR[14] = klr;
654 subL[15] = krl; subR[15] = krr;
655 ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
656 /* k15, k16 */
657 subL[20] = kll; subR[20] = klr;
658 subL[21] = krl; subR[21] = krr;
659 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
660 /* kw3, kw4 */
661 subL[24] = kll; subR[24] = klr;
662 subL[25] = krl; subR[25] = krr;
663
664 camellia_setup_tail(subkey, subL, subR, 24);
665 }
666
667 static void camellia_setup256(const unsigned char *key, u32 *subkey)
668 {
669 u32 kll, klr, krl, krr; /* left half of key */
670 u32 krll, krlr, krrl, krrr; /* right half of key */
671 u32 il, ir, t0, t1, w0, w1; /* temporary variables */
672 u32 subL[34];
673 u32 subR[34];
674
675 /**
676 * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr)
677 * (|| is concatenation)
678 */
679 kll = get_unaligned_be32(key);
680 klr = get_unaligned_be32(key + 4);
681 krl = get_unaligned_be32(key + 8);
682 krr = get_unaligned_be32(key + 12);
683 krll = get_unaligned_be32(key + 16);
684 krlr = get_unaligned_be32(key + 20);
685 krrl = get_unaligned_be32(key + 24);
686 krrr = get_unaligned_be32(key + 28);
687
688 /* generate KL dependent subkeys */
689 /* kw1 */
690 subL[0] = kll; subR[0] = klr;
691 /* kw2 */
692 subL[1] = krl; subR[1] = krr;
693 ROLDQo32(kll, klr, krl, krr, w0, w1, 45);
694 /* k9 */
695 subL[12] = kll; subR[12] = klr;
696 /* k10 */
697 subL[13] = krl; subR[13] = krr;
698 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
699 /* kl3 */
700 subL[16] = kll; subR[16] = klr;
701 /* kl4 */
702 subL[17] = krl; subR[17] = krr;
703 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
704 /* k17 */
705 subL[22] = kll; subR[22] = klr;
706 /* k18 */
707 subL[23] = krl; subR[23] = krr;
708 ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
709 /* k23 */
710 subL[30] = kll; subR[30] = klr;
711 /* k24 */
712 subL[31] = krl; subR[31] = krr;
713
714 /* generate KR dependent subkeys */
715 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
716 /* k3 */
717 subL[4] = krll; subR[4] = krlr;
718 /* k4 */
719 subL[5] = krrl; subR[5] = krrr;
720 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
721 /* kl1 */
722 subL[8] = krll; subR[8] = krlr;
723 /* kl2 */
724 subL[9] = krrl; subR[9] = krrr;
725 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
726 /* k13 */
727 subL[18] = krll; subR[18] = krlr;
728 /* k14 */
729 subL[19] = krrl; subR[19] = krrr;
730 ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
731 /* k19 */
732 subL[26] = krll; subR[26] = krlr;
733 /* k20 */
734 subL[27] = krrl; subR[27] = krrr;
735 ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
736
737 /* generate KA */
738 kll = subL[0] ^ krll; klr = subR[0] ^ krlr;
739 krl = subL[1] ^ krrl; krr = subR[1] ^ krrr;
740 CAMELLIA_F(kll, klr,
741 CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
742 w0, w1, il, ir, t0, t1);
743 krl ^= w0; krr ^= w1;
744 CAMELLIA_F(krl, krr,
745 CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
746 kll, klr, il, ir, t0, t1);
747 kll ^= krll; klr ^= krlr;
748 CAMELLIA_F(kll, klr,
749 CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
750 krl, krr, il, ir, t0, t1);
751 krl ^= w0 ^ krrl; krr ^= w1 ^ krrr;
752 CAMELLIA_F(krl, krr,
753 CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
754 w0, w1, il, ir, t0, t1);
755 kll ^= w0; klr ^= w1;
756
757 /* generate KB */
758 krll ^= kll; krlr ^= klr;
759 krrl ^= krl; krrr ^= krr;
760 CAMELLIA_F(krll, krlr,
761 CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R,
762 w0, w1, il, ir, t0, t1);
763 krrl ^= w0; krrr ^= w1;
764 CAMELLIA_F(krrl, krrr,
765 CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R,
766 w0, w1, il, ir, t0, t1);
767 krll ^= w0; krlr ^= w1;
768
769 /* generate KA dependent subkeys */
770 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
771 /* k5 */
772 subL[6] = kll; subR[6] = klr;
773 /* k6 */
774 subL[7] = krl; subR[7] = krr;
775 ROLDQ(kll, klr, krl, krr, w0, w1, 30);
776 /* k11 */
777 subL[14] = kll; subR[14] = klr;
778 /* k12 */
779 subL[15] = krl; subR[15] = krr;
780 /* rotation left shift 32bit */
781 /* kl5 */
782 subL[24] = klr; subR[24] = krl;
783 /* kl6 */
784 subL[25] = krr; subR[25] = kll;
785 /* rotation left shift 49 from k11,k12 -> k21,k22 */
786 ROLDQo32(kll, klr, krl, krr, w0, w1, 49);
787 /* k21 */
788 subL[28] = kll; subR[28] = klr;
789 /* k22 */
790 subL[29] = krl; subR[29] = krr;
791
792 /* generate KB dependent subkeys */
793 /* k1 */
794 subL[2] = krll; subR[2] = krlr;
795 /* k2 */
796 subL[3] = krrl; subR[3] = krrr;
797 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
798 /* k7 */
799 subL[10] = krll; subR[10] = krlr;
800 /* k8 */
801 subL[11] = krrl; subR[11] = krrr;
802 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
803 /* k15 */
804 subL[20] = krll; subR[20] = krlr;
805 /* k16 */
806 subL[21] = krrl; subR[21] = krrr;
807 ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51);
808 /* kw3 */
809 subL[32] = krll; subR[32] = krlr;
810 /* kw4 */
811 subL[33] = krrl; subR[33] = krrr;
812
813 camellia_setup_tail(subkey, subL, subR, 32);
814 }
815
816 static void camellia_setup192(const unsigned char *key, u32 *subkey)
817 {
818 unsigned char kk[32];
819 u32 krll, krlr, krrl, krrr;
820
821 memcpy(kk, key, 24);
822 memcpy((unsigned char *)&krll, key+16, 4);
823 memcpy((unsigned char *)&krlr, key+20, 4);
824 krrl = ~krll;
825 krrr = ~krlr;
826 memcpy(kk+24, (unsigned char *)&krrl, 4);
827 memcpy(kk+28, (unsigned char *)&krrr, 4);
828 camellia_setup256(kk, subkey);
829 }
830
831
832 /*
833 * Encrypt/decrypt
834 */
835 #define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) \
836 do { \
837 t0 = kll; \
838 t2 = krr; \
839 t0 &= ll; \
840 t2 |= rr; \
841 rl ^= t2; \
842 lr ^= rol32(t0, 1); \
843 t3 = krl; \
844 t1 = klr; \
845 t3 &= rl; \
846 t1 |= lr; \
847 ll ^= t1; \
848 rr ^= rol32(t3, 1); \
849 } while (0)
850
851 #define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) \
852 do { \
853 yl ^= kl; \
854 yr ^= kr; \
855 ir = camellia_sp1110[(u8)xr]; \
856 il = camellia_sp1110[ (xl >> 24)]; \
857 ir ^= camellia_sp0222[ (xr >> 24)]; \
858 il ^= camellia_sp0222[(u8)(xl >> 16)]; \
859 ir ^= camellia_sp3033[(u8)(xr >> 16)]; \
860 il ^= camellia_sp3033[(u8)(xl >> 8)]; \
861 ir ^= camellia_sp4404[(u8)(xr >> 8)]; \
862 il ^= camellia_sp4404[(u8)xl]; \
863 ir ^= il; \
864 yl ^= ir; \
865 yr ^= ror32(il, 8) ^ ir; \
866 } while (0)
867
868 /* max = 24: 128bit encrypt, max = 32: 256bit encrypt */
869 static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max)
870 {
871 u32 il, ir, t0, t1; /* temporary variables */
872
873 /* pre whitening but absorb kw2 */
874 io[0] ^= SUBKEY_L(0);
875 io[1] ^= SUBKEY_R(0);
876
877 /* main iteration */
878 #define ROUNDS(i) do { \
879 CAMELLIA_ROUNDSM(io[0], io[1], \
880 SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
881 io[2], io[3], il, ir); \
882 CAMELLIA_ROUNDSM(io[2], io[3], \
883 SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
884 io[0], io[1], il, ir); \
885 CAMELLIA_ROUNDSM(io[0], io[1], \
886 SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
887 io[2], io[3], il, ir); \
888 CAMELLIA_ROUNDSM(io[2], io[3], \
889 SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
890 io[0], io[1], il, ir); \
891 CAMELLIA_ROUNDSM(io[0], io[1], \
892 SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
893 io[2], io[3], il, ir); \
894 CAMELLIA_ROUNDSM(io[2], io[3], \
895 SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
896 io[0], io[1], il, ir); \
897 } while (0)
898 #define FLS(i) do { \
899 CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
900 SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
901 SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
902 t0, t1, il, ir); \
903 } while (0)
904
905 ROUNDS(0);
906 FLS(8);
907 ROUNDS(8);
908 FLS(16);
909 ROUNDS(16);
910 if (max == 32) {
911 FLS(24);
912 ROUNDS(24);
913 }
914
915 #undef ROUNDS
916 #undef FLS
917
918 /* post whitening but kw4 */
919 io[2] ^= SUBKEY_L(max);
920 io[3] ^= SUBKEY_R(max);
921 /* NB: io[0],[1] should be swapped with [2],[3] by caller! */
922 }
923
924 static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i)
925 {
926 u32 il, ir, t0, t1; /* temporary variables */
927
928 /* pre whitening but absorb kw2 */
929 io[0] ^= SUBKEY_L(i);
930 io[1] ^= SUBKEY_R(i);
931
932 /* main iteration */
933 #define ROUNDS(i) do { \
934 CAMELLIA_ROUNDSM(io[0], io[1], \
935 SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
936 io[2], io[3], il, ir); \
937 CAMELLIA_ROUNDSM(io[2], io[3], \
938 SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
939 io[0], io[1], il, ir); \
940 CAMELLIA_ROUNDSM(io[0], io[1], \
941 SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
942 io[2], io[3], il, ir); \
943 CAMELLIA_ROUNDSM(io[2], io[3], \
944 SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
945 io[0], io[1], il, ir); \
946 CAMELLIA_ROUNDSM(io[0], io[1], \
947 SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
948 io[2], io[3], il, ir); \
949 CAMELLIA_ROUNDSM(io[2], io[3], \
950 SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
951 io[0], io[1], il, ir); \
952 } while (0)
953 #define FLS(i) do { \
954 CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
955 SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
956 SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
957 t0, t1, il, ir); \
958 } while (0)
959
960 if (i == 32) {
961 ROUNDS(24);
962 FLS(24);
963 }
964 ROUNDS(16);
965 FLS(16);
966 ROUNDS(8);
967 FLS(8);
968 ROUNDS(0);
969
970 #undef ROUNDS
971 #undef FLS
972
973 /* post whitening but kw4 */
974 io[2] ^= SUBKEY_L(0);
975 io[3] ^= SUBKEY_R(0);
976 /* NB: 0,1 should be swapped with 2,3 by caller! */
977 }
978
979
980 struct camellia_ctx {
981 int key_length;
982 u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)];
983 };
984
985 static int
986 camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key,
987 unsigned int key_len)
988 {
989 struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
990 const unsigned char *key = (const unsigned char *)in_key;
991 u32 *flags = &tfm->crt_flags;
992
993 if (key_len != 16 && key_len != 24 && key_len != 32) {
994 *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
995 return -EINVAL;
996 }
997
998 cctx->key_length = key_len;
999
1000 switch (key_len) {
1001 case 16:
1002 camellia_setup128(key, cctx->key_table);
1003 break;
1004 case 24:
1005 camellia_setup192(key, cctx->key_table);
1006 break;
1007 case 32:
1008 camellia_setup256(key, cctx->key_table);
1009 break;
1010 }
1011
1012 return 0;
1013 }
1014
1015 static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
1016 {
1017 const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
1018 const __be32 *src = (const __be32 *)in;
1019 __be32 *dst = (__be32 *)out;
1020
1021 u32 tmp[4];
1022
1023 tmp[0] = be32_to_cpu(src[0]);
1024 tmp[1] = be32_to_cpu(src[1]);
1025 tmp[2] = be32_to_cpu(src[2]);
1026 tmp[3] = be32_to_cpu(src[3]);
1027
1028 camellia_do_encrypt(cctx->key_table, tmp,
1029 cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
1030 );
1031
1032 /* do_encrypt returns 0,1 swapped with 2,3 */
1033 dst[0] = cpu_to_be32(tmp[2]);
1034 dst[1] = cpu_to_be32(tmp[3]);
1035 dst[2] = cpu_to_be32(tmp[0]);
1036 dst[3] = cpu_to_be32(tmp[1]);
1037 }
1038
1039 static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
1040 {
1041 const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
1042 const __be32 *src = (const __be32 *)in;
1043 __be32 *dst = (__be32 *)out;
1044
1045 u32 tmp[4];
1046
1047 tmp[0] = be32_to_cpu(src[0]);
1048 tmp[1] = be32_to_cpu(src[1]);
1049 tmp[2] = be32_to_cpu(src[2]);
1050 tmp[3] = be32_to_cpu(src[3]);
1051
1052 camellia_do_decrypt(cctx->key_table, tmp,
1053 cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
1054 );
1055
1056 /* do_decrypt returns 0,1 swapped with 2,3 */
1057 dst[0] = cpu_to_be32(tmp[2]);
1058 dst[1] = cpu_to_be32(tmp[3]);
1059 dst[2] = cpu_to_be32(tmp[0]);
1060 dst[3] = cpu_to_be32(tmp[1]);
1061 }
1062
1063 static struct crypto_alg camellia_alg = {
1064 .cra_name = "camellia",
1065 .cra_driver_name = "camellia-generic",
1066 .cra_priority = 100,
1067 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
1068 .cra_blocksize = CAMELLIA_BLOCK_SIZE,
1069 .cra_ctxsize = sizeof(struct camellia_ctx),
1070 .cra_alignmask = 3,
1071 .cra_module = THIS_MODULE,
1072 .cra_list = LIST_HEAD_INIT(camellia_alg.cra_list),
1073 .cra_u = {
1074 .cipher = {
1075 .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE,
1076 .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE,
1077 .cia_setkey = camellia_set_key,
1078 .cia_encrypt = camellia_encrypt,
1079 .cia_decrypt = camellia_decrypt
1080 }
1081 }
1082 };
1083
1084 static int __init camellia_init(void)
1085 {
1086 return crypto_register_alg(&camellia_alg);
1087 }
1088
1089 static void __exit camellia_fini(void)
1090 {
1091 crypto_unregister_alg(&camellia_alg);
1092 }
1093
1094 module_init(camellia_init);
1095 module_exit(camellia_fini);
1096
1097 MODULE_DESCRIPTION("Camellia Cipher Algorithm");
1098 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
This page took 0.077816 seconds and 6 git commands to generate.