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Merge tag 'riscv-for-linus-6.4-mw1' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-block.git] / crypto / camellia_generic.c
CommitLineData
1ccea77e 1// SPDX-License-Identifier: GPL-2.0-or-later
d64beac0
NT		 2/*
3 * Copyright (C) 2006
4 * NTT (Nippon Telegraph and Telephone Corporation).
d64beac0
NT		 5 */
6
7/*
8 * Algorithm Specification
9332a9e7 9 * https://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
d64beac0
NT		 10 */
11
14386d47 12#include <crypto/algapi.h>
d64beac0
NT		 13#include <linux/errno.h>
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/module.h>
32bd78e0
HH		 17#include <linux/bitops.h>
18#include <asm/unaligned.h>
d64beac0 19
d64beac0 20static const u32 camellia_sp1110[256] = {
621dd369
RH		 21 0x70707000, 0x82828200, 0x2c2c2c00, 0xececec00,
22 0xb3b3b300, 0x27272700, 0xc0c0c000, 0xe5e5e500,
23 0xe4e4e400, 0x85858500, 0x57575700, 0x35353500,
24 0xeaeaea00, 0x0c0c0c00, 0xaeaeae00, 0x41414100,
25 0x23232300, 0xefefef00, 0x6b6b6b00, 0x93939300,
26 0x45454500, 0x19191900, 0xa5a5a500, 0x21212100,
27 0xededed00, 0x0e0e0e00, 0x4f4f4f00, 0x4e4e4e00,
28 0x1d1d1d00, 0x65656500, 0x92929200, 0xbdbdbd00,
29 0x86868600, 0xb8b8b800, 0xafafaf00, 0x8f8f8f00,
30 0x7c7c7c00, 0xebebeb00, 0x1f1f1f00, 0xcecece00,
31 0x3e3e3e00, 0x30303000, 0xdcdcdc00, 0x5f5f5f00,
32 0x5e5e5e00, 0xc5c5c500, 0x0b0b0b00, 0x1a1a1a00,
33 0xa6a6a600, 0xe1e1e100, 0x39393900, 0xcacaca00,
34 0xd5d5d500, 0x47474700, 0x5d5d5d00, 0x3d3d3d00,
35 0xd9d9d900, 0x01010100, 0x5a5a5a00, 0xd6d6d600,
36 0x51515100, 0x56565600, 0x6c6c6c00, 0x4d4d4d00,
37 0x8b8b8b00, 0x0d0d0d00, 0x9a9a9a00, 0x66666600,
38 0xfbfbfb00, 0xcccccc00, 0xb0b0b000, 0x2d2d2d00,
39 0x74747400, 0x12121200, 0x2b2b2b00, 0x20202000,
40 0xf0f0f000, 0xb1b1b100, 0x84848400, 0x99999900,
41 0xdfdfdf00, 0x4c4c4c00, 0xcbcbcb00, 0xc2c2c200,
42 0x34343400, 0x7e7e7e00, 0x76767600, 0x05050500,
43 0x6d6d6d00, 0xb7b7b700, 0xa9a9a900, 0x31313100,
44 0xd1d1d100, 0x17171700, 0x04040400, 0xd7d7d700,
45 0x14141400, 0x58585800, 0x3a3a3a00, 0x61616100,
46 0xdedede00, 0x1b1b1b00, 0x11111100, 0x1c1c1c00,
47 0x32323200, 0x0f0f0f00, 0x9c9c9c00, 0x16161600,
48 0x53535300, 0x18181800, 0xf2f2f200, 0x22222200,
49 0xfefefe00, 0x44444400, 0xcfcfcf00, 0xb2b2b200,
50 0xc3c3c300, 0xb5b5b500, 0x7a7a7a00, 0x91919100,
51 0x24242400, 0x08080800, 0xe8e8e800, 0xa8a8a800,
52 0x60606000, 0xfcfcfc00, 0x69696900, 0x50505000,
53 0xaaaaaa00, 0xd0d0d000, 0xa0a0a000, 0x7d7d7d00,
54 0xa1a1a100, 0x89898900, 0x62626200, 0x97979700,
55 0x54545400, 0x5b5b5b00, 0x1e1e1e00, 0x95959500,
56 0xe0e0e000, 0xffffff00, 0x64646400, 0xd2d2d200,
57 0x10101000, 0xc4c4c400, 0x00000000, 0x48484800,
58 0xa3a3a300, 0xf7f7f700, 0x75757500, 0xdbdbdb00,
59 0x8a8a8a00, 0x03030300, 0xe6e6e600, 0xdadada00,
60 0x09090900, 0x3f3f3f00, 0xdddddd00, 0x94949400,
61 0x87878700, 0x5c5c5c00, 0x83838300, 0x02020200,
62 0xcdcdcd00, 0x4a4a4a00, 0x90909000, 0x33333300,
63 0x73737300, 0x67676700, 0xf6f6f600, 0xf3f3f300,
64 0x9d9d9d00, 0x7f7f7f00, 0xbfbfbf00, 0xe2e2e200,
65 0x52525200, 0x9b9b9b00, 0xd8d8d800, 0x26262600,
66 0xc8c8c800, 0x37373700, 0xc6c6c600, 0x3b3b3b00,
67 0x81818100, 0x96969600, 0x6f6f6f00, 0x4b4b4b00,
68 0x13131300, 0xbebebe00, 0x63636300, 0x2e2e2e00,
69 0xe9e9e900, 0x79797900, 0xa7a7a700, 0x8c8c8c00,
70 0x9f9f9f00, 0x6e6e6e00, 0xbcbcbc00, 0x8e8e8e00,
71 0x29292900, 0xf5f5f500, 0xf9f9f900, 0xb6b6b600,
72 0x2f2f2f00, 0xfdfdfd00, 0xb4b4b400, 0x59595900,
73 0x78787800, 0x98989800, 0x06060600, 0x6a6a6a00,
74 0xe7e7e700, 0x46464600, 0x71717100, 0xbababa00,
75 0xd4d4d400, 0x25252500, 0xababab00, 0x42424200,
76 0x88888800, 0xa2a2a200, 0x8d8d8d00, 0xfafafa00,
77 0x72727200, 0x07070700, 0xb9b9b900, 0x55555500,
78 0xf8f8f800, 0xeeeeee00, 0xacacac00, 0x0a0a0a00,
79 0x36363600, 0x49494900, 0x2a2a2a00, 0x68686800,
80 0x3c3c3c00, 0x38383800, 0xf1f1f100, 0xa4a4a400,
81 0x40404000, 0x28282800, 0xd3d3d300, 0x7b7b7b00,
82 0xbbbbbb00, 0xc9c9c900, 0x43434300, 0xc1c1c100,
83 0x15151500, 0xe3e3e300, 0xadadad00, 0xf4f4f400,
84 0x77777700, 0xc7c7c700, 0x80808000, 0x9e9e9e00,
d64beac0
NT		 85};
86
87static const u32 camellia_sp0222[256] = {
621dd369
RH		 88 0x00e0e0e0, 0x00050505, 0x00585858, 0x00d9d9d9,
89 0x00676767, 0x004e4e4e, 0x00818181, 0x00cbcbcb,
90 0x00c9c9c9, 0x000b0b0b, 0x00aeaeae, 0x006a6a6a,
91 0x00d5d5d5, 0x00181818, 0x005d5d5d, 0x00828282,
92 0x00464646, 0x00dfdfdf, 0x00d6d6d6, 0x00272727,
93 0x008a8a8a, 0x00323232, 0x004b4b4b, 0x00424242,
94 0x00dbdbdb, 0x001c1c1c, 0x009e9e9e, 0x009c9c9c,
95 0x003a3a3a, 0x00cacaca, 0x00252525, 0x007b7b7b,
96 0x000d0d0d, 0x00717171, 0x005f5f5f, 0x001f1f1f,
97 0x00f8f8f8, 0x00d7d7d7, 0x003e3e3e, 0x009d9d9d,
98 0x007c7c7c, 0x00606060, 0x00b9b9b9, 0x00bebebe,
99 0x00bcbcbc, 0x008b8b8b, 0x00161616, 0x00343434,
100 0x004d4d4d, 0x00c3c3c3, 0x00727272, 0x00959595,
101 0x00ababab, 0x008e8e8e, 0x00bababa, 0x007a7a7a,
102 0x00b3b3b3, 0x00020202, 0x00b4b4b4, 0x00adadad,
103 0x00a2a2a2, 0x00acacac, 0x00d8d8d8, 0x009a9a9a,
104 0x00171717, 0x001a1a1a, 0x00353535, 0x00cccccc,
105 0x00f7f7f7, 0x00999999, 0x00616161, 0x005a5a5a,
106 0x00e8e8e8, 0x00242424, 0x00565656, 0x00404040,
107 0x00e1e1e1, 0x00636363, 0x00090909, 0x00333333,
108 0x00bfbfbf, 0x00989898, 0x00979797, 0x00858585,
109 0x00686868, 0x00fcfcfc, 0x00ececec, 0x000a0a0a,
110 0x00dadada, 0x006f6f6f, 0x00535353, 0x00626262,
111 0x00a3a3a3, 0x002e2e2e, 0x00080808, 0x00afafaf,
112 0x00282828, 0x00b0b0b0, 0x00747474, 0x00c2c2c2,
113 0x00bdbdbd, 0x00363636, 0x00222222, 0x00383838,
114 0x00646464, 0x001e1e1e, 0x00393939, 0x002c2c2c,
115 0x00a6a6a6, 0x00303030, 0x00e5e5e5, 0x00444444,
116 0x00fdfdfd, 0x00888888, 0x009f9f9f, 0x00656565,
117 0x00878787, 0x006b6b6b, 0x00f4f4f4, 0x00232323,
118 0x00484848, 0x00101010, 0x00d1d1d1, 0x00515151,
119 0x00c0c0c0, 0x00f9f9f9, 0x00d2d2d2, 0x00a0a0a0,
120 0x00555555, 0x00a1a1a1, 0x00414141, 0x00fafafa,
121 0x00434343, 0x00131313, 0x00c4c4c4, 0x002f2f2f,
122 0x00a8a8a8, 0x00b6b6b6, 0x003c3c3c, 0x002b2b2b,
123 0x00c1c1c1, 0x00ffffff, 0x00c8c8c8, 0x00a5a5a5,
124 0x00202020, 0x00898989, 0x00000000, 0x00909090,
125 0x00474747, 0x00efefef, 0x00eaeaea, 0x00b7b7b7,
126 0x00151515, 0x00060606, 0x00cdcdcd, 0x00b5b5b5,
127 0x00121212, 0x007e7e7e, 0x00bbbbbb, 0x00292929,
128 0x000f0f0f, 0x00b8b8b8, 0x00070707, 0x00040404,
129 0x009b9b9b, 0x00949494, 0x00212121, 0x00666666,
130 0x00e6e6e6, 0x00cecece, 0x00ededed, 0x00e7e7e7,
131 0x003b3b3b, 0x00fefefe, 0x007f7f7f, 0x00c5c5c5,
132 0x00a4a4a4, 0x00373737, 0x00b1b1b1, 0x004c4c4c,
133 0x00919191, 0x006e6e6e, 0x008d8d8d, 0x00767676,
134 0x00030303, 0x002d2d2d, 0x00dedede, 0x00969696,
135 0x00262626, 0x007d7d7d, 0x00c6c6c6, 0x005c5c5c,
136 0x00d3d3d3, 0x00f2f2f2, 0x004f4f4f, 0x00191919,
137 0x003f3f3f, 0x00dcdcdc, 0x00797979, 0x001d1d1d,
138 0x00525252, 0x00ebebeb, 0x00f3f3f3, 0x006d6d6d,
139 0x005e5e5e, 0x00fbfbfb, 0x00696969, 0x00b2b2b2,
140 0x00f0f0f0, 0x00313131, 0x000c0c0c, 0x00d4d4d4,
141 0x00cfcfcf, 0x008c8c8c, 0x00e2e2e2, 0x00757575,
142 0x00a9a9a9, 0x004a4a4a, 0x00575757, 0x00848484,
143 0x00111111, 0x00454545, 0x001b1b1b, 0x00f5f5f5,
144 0x00e4e4e4, 0x000e0e0e, 0x00737373, 0x00aaaaaa,
145 0x00f1f1f1, 0x00dddddd, 0x00595959, 0x00141414,
146 0x006c6c6c, 0x00929292, 0x00545454, 0x00d0d0d0,
147 0x00787878, 0x00707070, 0x00e3e3e3, 0x00494949,
148 0x00808080, 0x00505050, 0x00a7a7a7, 0x00f6f6f6,
149 0x00777777, 0x00939393, 0x00868686, 0x00838383,
150 0x002a2a2a, 0x00c7c7c7, 0x005b5b5b, 0x00e9e9e9,
151 0x00eeeeee, 0x008f8f8f, 0x00010101, 0x003d3d3d,
d64beac0
NT		 152};
153
154static const u32 camellia_sp3033[256] = {
621dd369
RH		 155 0x38003838, 0x41004141, 0x16001616, 0x76007676,
156 0xd900d9d9, 0x93009393, 0x60006060, 0xf200f2f2,
157 0x72007272, 0xc200c2c2, 0xab00abab, 0x9a009a9a,
158 0x75007575, 0x06000606, 0x57005757, 0xa000a0a0,
159 0x91009191, 0xf700f7f7, 0xb500b5b5, 0xc900c9c9,
160 0xa200a2a2, 0x8c008c8c, 0xd200d2d2, 0x90009090,
161 0xf600f6f6, 0x07000707, 0xa700a7a7, 0x27002727,
162 0x8e008e8e, 0xb200b2b2, 0x49004949, 0xde00dede,
163 0x43004343, 0x5c005c5c, 0xd700d7d7, 0xc700c7c7,
164 0x3e003e3e, 0xf500f5f5, 0x8f008f8f, 0x67006767,
165 0x1f001f1f, 0x18001818, 0x6e006e6e, 0xaf00afaf,
166 0x2f002f2f, 0xe200e2e2, 0x85008585, 0x0d000d0d,
167 0x53005353, 0xf000f0f0, 0x9c009c9c, 0x65006565,
168 0xea00eaea, 0xa300a3a3, 0xae00aeae, 0x9e009e9e,
169 0xec00ecec, 0x80008080, 0x2d002d2d, 0x6b006b6b,
170 0xa800a8a8, 0x2b002b2b, 0x36003636, 0xa600a6a6,
171 0xc500c5c5, 0x86008686, 0x4d004d4d, 0x33003333,
172 0xfd00fdfd, 0x66006666, 0x58005858, 0x96009696,
173 0x3a003a3a, 0x09000909, 0x95009595, 0x10001010,
174 0x78007878, 0xd800d8d8, 0x42004242, 0xcc00cccc,
175 0xef00efef, 0x26002626, 0xe500e5e5, 0x61006161,
176 0x1a001a1a, 0x3f003f3f, 0x3b003b3b, 0x82008282,
177 0xb600b6b6, 0xdb00dbdb, 0xd400d4d4, 0x98009898,
178 0xe800e8e8, 0x8b008b8b, 0x02000202, 0xeb00ebeb,
179 0x0a000a0a, 0x2c002c2c, 0x1d001d1d, 0xb000b0b0,
180 0x6f006f6f, 0x8d008d8d, 0x88008888, 0x0e000e0e,
181 0x19001919, 0x87008787, 0x4e004e4e, 0x0b000b0b,
182 0xa900a9a9, 0x0c000c0c, 0x79007979, 0x11001111,
183 0x7f007f7f, 0x22002222, 0xe700e7e7, 0x59005959,
184 0xe100e1e1, 0xda00dada, 0x3d003d3d, 0xc800c8c8,
185 0x12001212, 0x04000404, 0x74007474, 0x54005454,
186 0x30003030, 0x7e007e7e, 0xb400b4b4, 0x28002828,
187 0x55005555, 0x68006868, 0x50005050, 0xbe00bebe,
188 0xd000d0d0, 0xc400c4c4, 0x31003131, 0xcb00cbcb,
189 0x2a002a2a, 0xad00adad, 0x0f000f0f, 0xca00caca,
190 0x70007070, 0xff00ffff, 0x32003232, 0x69006969,
191 0x08000808, 0x62006262, 0x00000000, 0x24002424,
192 0xd100d1d1, 0xfb00fbfb, 0xba00baba, 0xed00eded,
193 0x45004545, 0x81008181, 0x73007373, 0x6d006d6d,
194 0x84008484, 0x9f009f9f, 0xee00eeee, 0x4a004a4a,
195 0xc300c3c3, 0x2e002e2e, 0xc100c1c1, 0x01000101,
196 0xe600e6e6, 0x25002525, 0x48004848, 0x99009999,
197 0xb900b9b9, 0xb300b3b3, 0x7b007b7b, 0xf900f9f9,
198 0xce00cece, 0xbf00bfbf, 0xdf00dfdf, 0x71007171,
199 0x29002929, 0xcd00cdcd, 0x6c006c6c, 0x13001313,
200 0x64006464, 0x9b009b9b, 0x63006363, 0x9d009d9d,
201 0xc000c0c0, 0x4b004b4b, 0xb700b7b7, 0xa500a5a5,
202 0x89008989, 0x5f005f5f, 0xb100b1b1, 0x17001717,
203 0xf400f4f4, 0xbc00bcbc, 0xd300d3d3, 0x46004646,
204 0xcf00cfcf, 0x37003737, 0x5e005e5e, 0x47004747,
205 0x94009494, 0xfa00fafa, 0xfc00fcfc, 0x5b005b5b,
206 0x97009797, 0xfe00fefe, 0x5a005a5a, 0xac00acac,
207 0x3c003c3c, 0x4c004c4c, 0x03000303, 0x35003535,
208 0xf300f3f3, 0x23002323, 0xb800b8b8, 0x5d005d5d,
209 0x6a006a6a, 0x92009292, 0xd500d5d5, 0x21002121,
210 0x44004444, 0x51005151, 0xc600c6c6, 0x7d007d7d,
211 0x39003939, 0x83008383, 0xdc00dcdc, 0xaa00aaaa,
212 0x7c007c7c, 0x77007777, 0x56005656, 0x05000505,
213 0x1b001b1b, 0xa400a4a4, 0x15001515, 0x34003434,
214 0x1e001e1e, 0x1c001c1c, 0xf800f8f8, 0x52005252,
215 0x20002020, 0x14001414, 0xe900e9e9, 0xbd00bdbd,
216 0xdd00dddd, 0xe400e4e4, 0xa100a1a1, 0xe000e0e0,
217 0x8a008a8a, 0xf100f1f1, 0xd600d6d6, 0x7a007a7a,
218 0xbb00bbbb, 0xe300e3e3, 0x40004040, 0x4f004f4f,
d64beac0
NT		 219};
220
221static const u32 camellia_sp4404[256] = {
621dd369
RH		 222 0x70700070, 0x2c2c002c, 0xb3b300b3, 0xc0c000c0,
223 0xe4e400e4, 0x57570057, 0xeaea00ea, 0xaeae00ae,
224 0x23230023, 0x6b6b006b, 0x45450045, 0xa5a500a5,
225 0xeded00ed, 0x4f4f004f, 0x1d1d001d, 0x92920092,
226 0x86860086, 0xafaf00af, 0x7c7c007c, 0x1f1f001f,
227 0x3e3e003e, 0xdcdc00dc, 0x5e5e005e, 0x0b0b000b,
228 0xa6a600a6, 0x39390039, 0xd5d500d5, 0x5d5d005d,
229 0xd9d900d9, 0x5a5a005a, 0x51510051, 0x6c6c006c,
230 0x8b8b008b, 0x9a9a009a, 0xfbfb00fb, 0xb0b000b0,
231 0x74740074, 0x2b2b002b, 0xf0f000f0, 0x84840084,
232 0xdfdf00df, 0xcbcb00cb, 0x34340034, 0x76760076,
233 0x6d6d006d, 0xa9a900a9, 0xd1d100d1, 0x04040004,
234 0x14140014, 0x3a3a003a, 0xdede00de, 0x11110011,
235 0x32320032, 0x9c9c009c, 0x53530053, 0xf2f200f2,
236 0xfefe00fe, 0xcfcf00cf, 0xc3c300c3, 0x7a7a007a,
237 0x24240024, 0xe8e800e8, 0x60600060, 0x69690069,
238 0xaaaa00aa, 0xa0a000a0, 0xa1a100a1, 0x62620062,
239 0x54540054, 0x1e1e001e, 0xe0e000e0, 0x64640064,
240 0x10100010, 0x00000000, 0xa3a300a3, 0x75750075,
241 0x8a8a008a, 0xe6e600e6, 0x09090009, 0xdddd00dd,
242 0x87870087, 0x83830083, 0xcdcd00cd, 0x90900090,
243 0x73730073, 0xf6f600f6, 0x9d9d009d, 0xbfbf00bf,
244 0x52520052, 0xd8d800d8, 0xc8c800c8, 0xc6c600c6,
245 0x81810081, 0x6f6f006f, 0x13130013, 0x63630063,
246 0xe9e900e9, 0xa7a700a7, 0x9f9f009f, 0xbcbc00bc,
247 0x29290029, 0xf9f900f9, 0x2f2f002f, 0xb4b400b4,
248 0x78780078, 0x06060006, 0xe7e700e7, 0x71710071,
249 0xd4d400d4, 0xabab00ab, 0x88880088, 0x8d8d008d,
250 0x72720072, 0xb9b900b9, 0xf8f800f8, 0xacac00ac,
251 0x36360036, 0x2a2a002a, 0x3c3c003c, 0xf1f100f1,
252 0x40400040, 0xd3d300d3, 0xbbbb00bb, 0x43430043,
253 0x15150015, 0xadad00ad, 0x77770077, 0x80800080,
254 0x82820082, 0xecec00ec, 0x27270027, 0xe5e500e5,
255 0x85850085, 0x35350035, 0x0c0c000c, 0x41410041,
256 0xefef00ef, 0x93930093, 0x19190019, 0x21210021,
257 0x0e0e000e, 0x4e4e004e, 0x65650065, 0xbdbd00bd,
258 0xb8b800b8, 0x8f8f008f, 0xebeb00eb, 0xcece00ce,
259 0x30300030, 0x5f5f005f, 0xc5c500c5, 0x1a1a001a,
260 0xe1e100e1, 0xcaca00ca, 0x47470047, 0x3d3d003d,
261 0x01010001, 0xd6d600d6, 0x56560056, 0x4d4d004d,
262 0x0d0d000d, 0x66660066, 0xcccc00cc, 0x2d2d002d,
263 0x12120012, 0x20200020, 0xb1b100b1, 0x99990099,
264 0x4c4c004c, 0xc2c200c2, 0x7e7e007e, 0x05050005,
265 0xb7b700b7, 0x31310031, 0x17170017, 0xd7d700d7,
266 0x58580058, 0x61610061, 0x1b1b001b, 0x1c1c001c,
267 0x0f0f000f, 0x16160016, 0x18180018, 0x22220022,
268 0x44440044, 0xb2b200b2, 0xb5b500b5, 0x91910091,
269 0x08080008, 0xa8a800a8, 0xfcfc00fc, 0x50500050,
270 0xd0d000d0, 0x7d7d007d, 0x89890089, 0x97970097,
271 0x5b5b005b, 0x95950095, 0xffff00ff, 0xd2d200d2,
272 0xc4c400c4, 0x48480048, 0xf7f700f7, 0xdbdb00db,
273 0x03030003, 0xdada00da, 0x3f3f003f, 0x94940094,
274 0x5c5c005c, 0x02020002, 0x4a4a004a, 0x33330033,
275 0x67670067, 0xf3f300f3, 0x7f7f007f, 0xe2e200e2,
276 0x9b9b009b, 0x26260026, 0x37370037, 0x3b3b003b,
277 0x96960096, 0x4b4b004b, 0xbebe00be, 0x2e2e002e,
278 0x79790079, 0x8c8c008c, 0x6e6e006e, 0x8e8e008e,
279 0xf5f500f5, 0xb6b600b6, 0xfdfd00fd, 0x59590059,
280 0x98980098, 0x6a6a006a, 0x46460046, 0xbaba00ba,
281 0x25250025, 0x42420042, 0xa2a200a2, 0xfafa00fa,
282 0x07070007, 0x55550055, 0xeeee00ee, 0x0a0a000a,
283 0x49490049, 0x68680068, 0x38380038, 0xa4a400a4,
284 0x28280028, 0x7b7b007b, 0xc9c900c9, 0xc1c100c1,
285 0xe3e300e3, 0xf4f400f4, 0xc7c700c7, 0x9e9e009e,
d64beac0
NT		 286};
287
288
1721a812
DV		 289#define CAMELLIA_MIN_KEY_SIZE 16
290#define CAMELLIA_MAX_KEY_SIZE 32
291#define CAMELLIA_BLOCK_SIZE 16
292#define CAMELLIA_TABLE_BYTE_LEN 272
293
2ddae4a6
DV		 294/*
295 * NB: L and R below stand for 'left' and 'right' as in written numbers.
296 * That is, in (xxxL,xxxR) pair xxxL holds most significant digits,
297 * _not_ least significant ones!
298 */
299
1721a812
DV		 300
301/* key constants */
302
303#define CAMELLIA_SIGMA1L (0xA09E667FL)
304#define CAMELLIA_SIGMA1R (0x3BCC908BL)
305#define CAMELLIA_SIGMA2L (0xB67AE858L)
306#define CAMELLIA_SIGMA2R (0x4CAA73B2L)
307#define CAMELLIA_SIGMA3L (0xC6EF372FL)
308#define CAMELLIA_SIGMA3R (0xE94F82BEL)
309#define CAMELLIA_SIGMA4L (0x54FF53A5L)
310#define CAMELLIA_SIGMA4R (0xF1D36F1CL)
311#define CAMELLIA_SIGMA5L (0x10E527FAL)
312#define CAMELLIA_SIGMA5R (0xDE682D1DL)
313#define CAMELLIA_SIGMA6L (0xB05688C2L)
314#define CAMELLIA_SIGMA6R (0xB3E6C1FDL)
315
316/*
317 * macros
318 */
e2861a71 319#define ROLDQ(ll, lr, rl, rr, w0, w1, bits) ({ \
1721a812
DV		 320 w0 = ll; \
321 ll = (ll << bits) + (lr >> (32 - bits)); \
322 lr = (lr << bits) + (rl >> (32 - bits)); \
323 rl = (rl << bits) + (rr >> (32 - bits)); \
324 rr = (rr << bits) + (w0 >> (32 - bits)); \
e2861a71 325})
1721a812 326
e2861a71 327#define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) ({ \
1721a812
DV		 328 w0 = ll; \
329 w1 = lr; \
330 ll = (lr << (bits - 32)) + (rl >> (64 - bits)); \
331 lr = (rl << (bits - 32)) + (rr >> (64 - bits)); \
332 rl = (rr << (bits - 32)) + (w0 >> (64 - bits)); \
333 rr = (w0 << (bits - 32)) + (w1 >> (64 - bits)); \
e2861a71 334})
1721a812 335
e2861a71 336#define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) ({ \
1721a812
DV		 337 il = xl ^ kl; \
338 ir = xr ^ kr; \
339 t0 = il >> 16; \
340 t1 = ir >> 16; \
e2861a71
JK		 341 yl = camellia_sp1110[(u8)(ir)] \
342 ^ camellia_sp0222[(u8)(t1 >> 8)] \
343 ^ camellia_sp3033[(u8)(t1)] \
2ddae4a6 344 ^ camellia_sp4404[(u8)(ir >> 8)]; \
e2861a71
JK		 345 yr = camellia_sp1110[(u8)(t0 >> 8)] \
346 ^ camellia_sp0222[(u8)(t0)] \
2ddae4a6 347 ^ camellia_sp3033[(u8)(il >> 8)] \
e2861a71 348 ^ camellia_sp4404[(u8)(il)]; \
1721a812 349 yl ^= yr; \
32bd78e0 350 yr = ror32(yr, 8); \
1721a812 351 yr ^= yl; \
e2861a71 352})
1721a812 353
3a5e5f81
DV		 354#define SUBKEY_L(INDEX) (subkey[(INDEX)*2])
355#define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1])
d64beac0 356
dedcf8b0 357static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
d3e74805 358{
dedcf8b0 359 u32 dw, tl, tr;
ff85a808 360 u32 kw4l, kw4r;
dedcf8b0 361
ff85a808
DV		 362 /* absorb kw2 to other subkeys */
363 /* round 2 */
364 subL[3] ^= subL[1]; subR[3] ^= subR[1];
365 /* round 4 */
366 subL[5] ^= subL[1]; subR[5] ^= subR[1];
367 /* round 6 */
368 subL[7] ^= subL[1]; subR[7] ^= subR[1];
369 subL[1] ^= subR[1] & ~subR[9];
452ec049
JL		 370 dw = subL[1] & subL[9];
371 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl2) */
ff85a808
DV		 372 /* round 8 */
373 subL[11] ^= subL[1]; subR[11] ^= subR[1];
374 /* round 10 */
375 subL[13] ^= subL[1]; subR[13] ^= subR[1];
376 /* round 12 */
377 subL[15] ^= subL[1]; subR[15] ^= subR[1];
378 subL[1] ^= subR[1] & ~subR[17];
452ec049
JL		 379 dw = subL[1] & subL[17];
380 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl4) */
ff85a808
DV		 381 /* round 14 */
382 subL[19] ^= subL[1]; subR[19] ^= subR[1];
383 /* round 16 */
384 subL[21] ^= subL[1]; subR[21] ^= subR[1];
385 /* round 18 */
386 subL[23] ^= subL[1]; subR[23] ^= subR[1];
387 if (max == 24) {
388 /* kw3 */
389 subL[24] ^= subL[1]; subR[24] ^= subR[1];
390
391 /* absorb kw4 to other subkeys */
392 kw4l = subL[25]; kw4r = subR[25];
393 } else {
394 subL[1] ^= subR[1] & ~subR[25];
452ec049
JL		 395 dw = subL[1] & subL[25];
396 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl6) */
ff85a808
DV		 397 /* round 20 */
398 subL[27] ^= subL[1]; subR[27] ^= subR[1];
399 /* round 22 */
400 subL[29] ^= subL[1]; subR[29] ^= subR[1];
401 /* round 24 */
402 subL[31] ^= subL[1]; subR[31] ^= subR[1];
403 /* kw3 */
404 subL[32] ^= subL[1]; subR[32] ^= subR[1];
405
406 /* absorb kw4 to other subkeys */
407 kw4l = subL[33]; kw4r = subR[33];
408 /* round 23 */
409 subL[30] ^= kw4l; subR[30] ^= kw4r;
410 /* round 21 */
411 subL[28] ^= kw4l; subR[28] ^= kw4r;
412 /* round 19 */
413 subL[26] ^= kw4l; subR[26] ^= kw4r;
414 kw4l ^= kw4r & ~subR[24];
452ec049
JL		 415 dw = kw4l & subL[24];
416 kw4r ^= rol32(dw, 1); /* modified for FL(kl5) */
ff85a808
DV		 417 }
418 /* round 17 */
419 subL[22] ^= kw4l; subR[22] ^= kw4r;
420 /* round 15 */
421 subL[20] ^= kw4l; subR[20] ^= kw4r;
422 /* round 13 */
423 subL[18] ^= kw4l; subR[18] ^= kw4r;
424 kw4l ^= kw4r & ~subR[16];
452ec049
JL		 425 dw = kw4l & subL[16];
426 kw4r ^= rol32(dw, 1); /* modified for FL(kl3) */
ff85a808
DV		 427 /* round 11 */
428 subL[14] ^= kw4l; subR[14] ^= kw4r;
429 /* round 9 */
430 subL[12] ^= kw4l; subR[12] ^= kw4r;
431 /* round 7 */
432 subL[10] ^= kw4l; subR[10] ^= kw4r;
433 kw4l ^= kw4r & ~subR[8];
452ec049
JL		 434 dw = kw4l & subL[8];
435 kw4r ^= rol32(dw, 1); /* modified for FL(kl1) */
ff85a808
DV		 436 /* round 5 */
437 subL[6] ^= kw4l; subR[6] ^= kw4r;
438 /* round 3 */
439 subL[4] ^= kw4l; subR[4] ^= kw4r;
440 /* round 1 */
441 subL[2] ^= kw4l; subR[2] ^= kw4r;
442 /* kw1 */
443 subL[0] ^= kw4l; subR[0] ^= kw4r;
444
dedcf8b0
DV		 445 /* key XOR is end of F-function */
446 SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */
447 SUBKEY_R(0) = subR[0] ^ subR[2];
448 SUBKEY_L(2) = subL[3]; /* round 1 */
449 SUBKEY_R(2) = subR[3];
450 SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */
451 SUBKEY_R(3) = subR[2] ^ subR[4];
452 SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */
453 SUBKEY_R(4) = subR[3] ^ subR[5];
454 SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */
455 SUBKEY_R(5) = subR[4] ^ subR[6];
456 SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */
457 SUBKEY_R(6) = subR[5] ^ subR[7];
458 tl = subL[10] ^ (subR[10] & ~subR[8]);
452ec049
JL		 459 dw = tl & subL[8]; /* FL(kl1) */
460 tr = subR[10] ^ rol32(dw, 1);
dedcf8b0
DV		 461 SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
462 SUBKEY_R(7) = subR[6] ^ tr;
463 SUBKEY_L(8) = subL[8]; /* FL(kl1) */
464 SUBKEY_R(8) = subR[8];
465 SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */
466 SUBKEY_R(9) = subR[9];
467 tl = subL[7] ^ (subR[7] & ~subR[9]);
452ec049
JL		 468 dw = tl & subL[9]; /* FLinv(kl2) */
469 tr = subR[7] ^ rol32(dw, 1);
dedcf8b0
DV		 470 SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
471 SUBKEY_R(10) = tr ^ subR[11];
472 SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
473 SUBKEY_R(11) = subR[10] ^ subR[12];
474 SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */
475 SUBKEY_R(12) = subR[11] ^ subR[13];
476 SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */
477 SUBKEY_R(13) = subR[12] ^ subR[14];
478 SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */
479 SUBKEY_R(14) = subR[13] ^ subR[15];
480 tl = subL[18] ^ (subR[18] & ~subR[16]);
452ec049
JL		 481 dw = tl & subL[16]; /* FL(kl3) */
482 tr = subR[18] ^ rol32(dw, 1);
dedcf8b0
DV		 483 SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
484 SUBKEY_R(15) = subR[14] ^ tr;
485 SUBKEY_L(16) = subL[16]; /* FL(kl3) */
486 SUBKEY_R(16) = subR[16];
487 SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */
488 SUBKEY_R(17) = subR[17];
489 tl = subL[15] ^ (subR[15] & ~subR[17]);
452ec049
JL		 490 dw = tl & subL[17]; /* FLinv(kl4) */
491 tr = subR[15] ^ rol32(dw, 1);
dedcf8b0
DV		 492 SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
493 SUBKEY_R(18) = tr ^ subR[19];
494 SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
495 SUBKEY_R(19) = subR[18] ^ subR[20];
496 SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */
497 SUBKEY_R(20) = subR[19] ^ subR[21];
498 SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */
499 SUBKEY_R(21) = subR[20] ^ subR[22];
500 SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */
501 SUBKEY_R(22) = subR[21] ^ subR[23];
502 if (max == 24) {
503 SUBKEY_L(23) = subL[22]; /* round 18 */
504 SUBKEY_R(23) = subR[22];
505 SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */
506 SUBKEY_R(24) = subR[24] ^ subR[23];
507 } else {
508 tl = subL[26] ^ (subR[26] & ~subR[24]);
452ec049
JL		 509 dw = tl & subL[24]; /* FL(kl5) */
510 tr = subR[26] ^ rol32(dw, 1);
dedcf8b0
DV		 511 SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */
512 SUBKEY_R(23) = subR[22] ^ tr;
513 SUBKEY_L(24) = subL[24]; /* FL(kl5) */
514 SUBKEY_R(24) = subR[24];
515 SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */
516 SUBKEY_R(25) = subR[25];
517 tl = subL[23] ^ (subR[23] & ~subR[25]);
452ec049
JL		 518 dw = tl & subL[25]; /* FLinv(kl6) */
519 tr = subR[23] ^ rol32(dw, 1);
dedcf8b0
DV		 520 SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */
521 SUBKEY_R(26) = tr ^ subR[27];
522 SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */
523 SUBKEY_R(27) = subR[26] ^ subR[28];
524 SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */
525 SUBKEY_R(28) = subR[27] ^ subR[29];
526 SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */
527 SUBKEY_R(29) = subR[28] ^ subR[30];
528 SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */
529 SUBKEY_R(30) = subR[29] ^ subR[31];
530 SUBKEY_L(31) = subL[30]; /* round 24 */
531 SUBKEY_R(31) = subR[30];
532 SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */
533 SUBKEY_R(32) = subR[32] ^ subR[31];
534 }
d3e74805
DV		 535}
536
d64beac0
NT		 537static void camellia_setup128(const unsigned char *key, u32 *subkey)
538{
539 u32 kll, klr, krl, krr;
540 u32 il, ir, t0, t1, w0, w1;
d64beac0
NT		 541 u32 subL[26];
542 u32 subR[26];
543
544 /**
dedcf8b0 545 * k == kll || klr || krl || krr (|| is concatenation)
d64beac0 546 */
32bd78e0
HH		 547 kll = get_unaligned_be32(key);
548 klr = get_unaligned_be32(key + 4);
549 krl = get_unaligned_be32(key + 8);
550 krr = get_unaligned_be32(key + 12);
1ce73e8d 551
dedcf8b0 552 /* generate KL dependent subkeys */
d64beac0 553 /* kw1 */
1721a812 554 subL[0] = kll; subR[0] = klr;
d64beac0 555 /* kw2 */
1721a812 556 subL[1] = krl; subR[1] = krr;
d64beac0 557 /* rotation left shift 15bit */
3a5e5f81 558 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 559 /* k3 */
1721a812 560 subL[4] = kll; subR[4] = klr;
d64beac0 561 /* k4 */
1721a812 562 subL[5] = krl; subR[5] = krr;
d64beac0 563 /* rotation left shift 15+30bit */
3a5e5f81 564 ROLDQ(kll, klr, krl, krr, w0, w1, 30);
d64beac0 565 /* k7 */
1721a812 566 subL[10] = kll; subR[10] = klr;
d64beac0 567 /* k8 */
1721a812 568 subL[11] = krl; subR[11] = krr;
d64beac0 569 /* rotation left shift 15+30+15bit */
3a5e5f81 570 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 571 /* k10 */
1721a812 572 subL[13] = krl; subR[13] = krr;
d64beac0 573 /* rotation left shift 15+30+15+17 bit */
3a5e5f81 574 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
d64beac0 575 /* kl3 */
1721a812 576 subL[16] = kll; subR[16] = klr;
d64beac0 577 /* kl4 */
1721a812 578 subL[17] = krl; subR[17] = krr;
d64beac0 579 /* rotation left shift 15+30+15+17+17 bit */
3a5e5f81 580 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
d64beac0 581 /* k13 */
1721a812 582 subL[18] = kll; subR[18] = klr;
d64beac0 583 /* k14 */
1721a812 584 subL[19] = krl; subR[19] = krr;
d64beac0 585 /* rotation left shift 15+30+15+17+17+17 bit */
3a5e5f81 586 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
d64beac0 587 /* k17 */
1721a812 588 subL[22] = kll; subR[22] = klr;
d64beac0 589 /* k18 */
1721a812 590 subL[23] = krl; subR[23] = krr;
d64beac0
NT		 591
592 /* generate KA */
1721a812
DV		 593 kll = subL[0]; klr = subR[0];
594 krl = subL[1]; krr = subR[1];
d64beac0
NT		 595 CAMELLIA_F(kll, klr,
596 CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
597 w0, w1, il, ir, t0, t1);
598 krl ^= w0; krr ^= w1;
599 CAMELLIA_F(krl, krr,
600 CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
601 kll, klr, il, ir, t0, t1);
602 /* current status == (kll, klr, w0, w1) */
603 CAMELLIA_F(kll, klr,
604 CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
605 krl, krr, il, ir, t0, t1);
606 krl ^= w0; krr ^= w1;
607 CAMELLIA_F(krl, krr,
608 CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
609 w0, w1, il, ir, t0, t1);
610 kll ^= w0; klr ^= w1;
611
612 /* generate KA dependent subkeys */
613 /* k1, k2 */
1721a812
DV		 614 subL[2] = kll; subR[2] = klr;
615 subL[3] = krl; subR[3] = krr;
3a5e5f81 616 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 617 /* k5,k6 */
1721a812
DV		 618 subL[6] = kll; subR[6] = klr;
619 subL[7] = krl; subR[7] = krr;
3a5e5f81 620 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 621 /* kl1, kl2 */
1721a812
DV		 622 subL[8] = kll; subR[8] = klr;
623 subL[9] = krl; subR[9] = krr;
3a5e5f81 624 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 625 /* k9 */
1721a812 626 subL[12] = kll; subR[12] = klr;
3a5e5f81 627 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 628 /* k11, k12 */
1721a812
DV		 629 subL[14] = kll; subR[14] = klr;
630 subL[15] = krl; subR[15] = krr;
3a5e5f81 631 ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
d64beac0 632 /* k15, k16 */
1721a812
DV		 633 subL[20] = kll; subR[20] = klr;
634 subL[21] = krl; subR[21] = krr;
3a5e5f81 635 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
d64beac0 636 /* kw3, kw4 */
1721a812
DV		 637 subL[24] = kll; subR[24] = klr;
638 subL[25] = krl; subR[25] = krr;
d64beac0 639
dedcf8b0 640 camellia_setup_tail(subkey, subL, subR, 24);
d64beac0
NT		 641}
642
d64beac0
NT		 643static 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 647 u32 il, ir, t0, t1, w0, w1; /* temporary variables */
d64beac0
NT		 648 u32 subL[34];
649 u32 subR[34];
650
651 /**
652 * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr)
dedcf8b0 653 * (|| is concatenation)
d64beac0 654 */
32bd78e0
HH		 655 kll = get_unaligned_be32(key);
656 klr = get_unaligned_be32(key + 4);
657 krl = get_unaligned_be32(key + 8);
658 krr = get_unaligned_be32(key + 12);
659 krll = get_unaligned_be32(key + 16);
660 krlr = get_unaligned_be32(key + 20);
661 krrl = get_unaligned_be32(key + 24);
662 krrr = get_unaligned_be32(key + 28);
d64beac0
NT		 663
664 /* generate KL dependent subkeys */
665 /* kw1 */
1721a812 666 subL[0] = kll; subR[0] = klr;
d64beac0 667 /* kw2 */
1721a812 668 subL[1] = krl; subR[1] = krr;
3a5e5f81 669 ROLDQo32(kll, klr, krl, krr, w0, w1, 45);
d64beac0 670 /* k9 */
1721a812 671 subL[12] = kll; subR[12] = klr;
d64beac0 672 /* k10 */
1721a812 673 subL[13] = krl; subR[13] = krr;
3a5e5f81 674 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 675 /* kl3 */
1721a812 676 subL[16] = kll; subR[16] = klr;
d64beac0 677 /* kl4 */
1721a812 678 subL[17] = krl; subR[17] = krr;
3a5e5f81 679 ROLDQ(kll, klr, krl, krr, w0, w1, 17);
d64beac0 680 /* k17 */
1721a812 681 subL[22] = kll; subR[22] = klr;
d64beac0 682 /* k18 */
1721a812 683 subL[23] = krl; subR[23] = krr;
3a5e5f81 684 ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
d64beac0 685 /* k23 */
1721a812 686 subL[30] = kll; subR[30] = klr;
d64beac0 687 /* k24 */
1721a812 688 subL[31] = krl; subR[31] = krr;
d64beac0
NT		 689
690 /* generate KR dependent subkeys */
3a5e5f81 691 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
d64beac0 692 /* k3 */
1721a812 693 subL[4] = krll; subR[4] = krlr;
d64beac0 694 /* k4 */
1721a812 695 subL[5] = krrl; subR[5] = krrr;
3a5e5f81 696 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
d64beac0 697 /* kl1 */
1721a812 698 subL[8] = krll; subR[8] = krlr;
d64beac0 699 /* kl2 */
1721a812 700 subL[9] = krrl; subR[9] = krrr;
3a5e5f81 701 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
d64beac0 702 /* k13 */
1721a812 703 subL[18] = krll; subR[18] = krlr;
d64beac0 704 /* k14 */
1721a812 705 subL[19] = krrl; subR[19] = krrr;
3a5e5f81 706 ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
d64beac0 707 /* k19 */
1721a812 708 subL[26] = krll; subR[26] = krlr;
d64beac0 709 /* k20 */
1721a812 710 subL[27] = krrl; subR[27] = krrr;
3a5e5f81 711 ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
d64beac0
NT		 712
713 /* generate KA */
1721a812
DV		 714 kll = subL[0] ^ krll; klr = subR[0] ^ krlr;
715 krl = subL[1] ^ krrl; krr = subR[1] ^ krrr;
d64beac0
NT		 716 CAMELLIA_F(kll, klr,
717 CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
718 w0, w1, il, ir, t0, t1);
719 krl ^= w0; krr ^= w1;
720 CAMELLIA_F(krl, krr,
721 CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
722 kll, klr, il, ir, t0, t1);
723 kll ^= krll; klr ^= krlr;
724 CAMELLIA_F(kll, klr,
725 CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
726 krl, krr, il, ir, t0, t1);
727 krl ^= w0 ^ krrl; krr ^= w1 ^ krrr;
728 CAMELLIA_F(krl, krr,
729 CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
730 w0, w1, il, ir, t0, t1);
731 kll ^= w0; klr ^= w1;
732
733 /* generate KB */
734 krll ^= kll; krlr ^= klr;
735 krrl ^= krl; krrr ^= krr;
736 CAMELLIA_F(krll, krlr,
737 CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R,
738 w0, w1, il, ir, t0, t1);
739 krrl ^= w0; krrr ^= w1;
740 CAMELLIA_F(krrl, krrr,
741 CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R,
742 w0, w1, il, ir, t0, t1);
743 krll ^= w0; krlr ^= w1;
744
745 /* generate KA dependent subkeys */
3a5e5f81 746 ROLDQ(kll, klr, krl, krr, w0, w1, 15);
d64beac0 747 /* k5 */
1721a812 748 subL[6] = kll; subR[6] = klr;
d64beac0 749 /* k6 */
1721a812 750 subL[7] = krl; subR[7] = krr;
3a5e5f81 751 ROLDQ(kll, klr, krl, krr, w0, w1, 30);
d64beac0 752 /* k11 */
1721a812 753 subL[14] = kll; subR[14] = klr;
d64beac0 754 /* k12 */
1721a812 755 subL[15] = krl; subR[15] = krr;
d64beac0
NT		 756 /* rotation left shift 32bit */
757 /* kl5 */
1721a812 758 subL[24] = klr; subR[24] = krl;
d64beac0 759 /* kl6 */
1721a812 760 subL[25] = krr; subR[25] = kll;
d64beac0 761 /* rotation left shift 49 from k11,k12 -> k21,k22 */
3a5e5f81 762 ROLDQo32(kll, klr, krl, krr, w0, w1, 49);
d64beac0 763 /* k21 */
1721a812 764 subL[28] = kll; subR[28] = klr;
d64beac0 765 /* k22 */
1721a812 766 subL[29] = krl; subR[29] = krr;
d64beac0
NT		 767
768 /* generate KB dependent subkeys */
769 /* k1 */
1721a812 770 subL[2] = krll; subR[2] = krlr;
d64beac0 771 /* k2 */
1721a812 772 subL[3] = krrl; subR[3] = krrr;
3a5e5f81 773 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
d64beac0 774 /* k7 */
1721a812 775 subL[10] = krll; subR[10] = krlr;
d64beac0 776 /* k8 */
1721a812 777 subL[11] = krrl; subR[11] = krrr;
3a5e5f81 778 ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
d64beac0 779 /* k15 */
1721a812 780 subL[20] = krll; subR[20] = krlr;
d64beac0 781 /* k16 */
1721a812 782 subL[21] = krrl; subR[21] = krrr;
3a5e5f81 783 ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51);
d64beac0 784 /* kw3 */
1721a812 785 subL[32] = krll; subR[32] = krlr;
d64beac0 786 /* kw4 */
1721a812 787 subL[33] = krrl; subR[33] = krrr;
d64beac0 788
dedcf8b0 789 camellia_setup_tail(subkey, subL, subR, 32);
d64beac0
NT		 790}
791
792static void camellia_setup192(const unsigned char *key, u32 *subkey)
793{
794 unsigned char kk[32];
621dd369 795 u32 krll, krlr, krrl, krrr;
d64beac0
NT		 796
797 memcpy(kk, key, 24);
1721a812
DV		 798 memcpy((unsigned char *)&krll, key+16, 4);
799 memcpy((unsigned char *)&krlr, key+20, 4);
d64beac0
NT		 800 krrl = ~krll;
801 krrr = ~krlr;
802 memcpy(kk+24, (unsigned char *)&krrl, 4);
803 memcpy(kk+28, (unsigned char *)&krrr, 4);
804 camellia_setup256(kk, subkey);
d64beac0
NT		 805}
806
807
2ddae4a6
DV		 808/*
809 * Encrypt/decrypt
810 */
e2861a71 811#define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) ({ \
2ddae4a6
DV		 812 t0 = kll; \
813 t2 = krr; \
814 t0 &= ll; \
815 t2 |= rr; \
816 rl ^= t2; \
32bd78e0 817 lr ^= rol32(t0, 1); \
2ddae4a6
DV		 818 t3 = krl; \
819 t1 = klr; \
820 t3 &= rl; \
821 t1 |= lr; \
822 ll ^= t1; \
32bd78e0 823 rr ^= rol32(t3, 1); \
e2861a71 824})
2ddae4a6 825
e2861a71 826#define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) ({ \
c9b56d33
JK		 827 yl ^= kl; \
828 yr ^= kr; \
2ddae4a6 829 ir = camellia_sp1110[(u8)xr]; \
e2861a71
JK		 830 il = camellia_sp1110[(u8)(xl >> 24)]; \
831 ir ^= camellia_sp0222[(u8)(xr >> 24)]; \
2ddae4a6
DV		 832 il ^= camellia_sp0222[(u8)(xl >> 16)]; \
833 ir ^= camellia_sp3033[(u8)(xr >> 16)]; \
834 il ^= camellia_sp3033[(u8)(xl >> 8)]; \
835 ir ^= camellia_sp4404[(u8)(xr >> 8)]; \
836 il ^= camellia_sp4404[(u8)xl]; \
c9b56d33 837 ir ^= il; \
2ddae4a6 838 yl ^= ir; \
e2861a71
JK		 839 yr ^= ror32(il, 8) ^ ir; \
840})
2ddae4a6 841
acca79a6
DV		 842/* max = 24: 128bit encrypt, max = 32: 256bit encrypt */
843static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max)
d64beac0 844{
621dd369 845 u32 il, ir, t0, t1; /* temporary variables */
d64beac0 846
1721a812 847 /* pre whitening but absorb kw2 */
acca79a6
DV		 848 io[0] ^= SUBKEY_L(0);
849 io[1] ^= SUBKEY_R(0);
d64beac0 850
1721a812 851 /* main iteration */
e2861a71 852#define ROUNDS(i) ({ \
621dd369
RH		 853 CAMELLIA_ROUNDSM(io[0], io[1], \
854 SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
855 io[2], io[3], il, ir); \
856 CAMELLIA_ROUNDSM(io[2], io[3], \
857 SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
858 io[0], io[1], il, ir); \
859 CAMELLIA_ROUNDSM(io[0], io[1], \
860 SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
861 io[2], io[3], il, ir); \
862 CAMELLIA_ROUNDSM(io[2], io[3], \
863 SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
864 io[0], io[1], il, ir); \
865 CAMELLIA_ROUNDSM(io[0], io[1], \
866 SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
867 io[2], io[3], il, ir); \
868 CAMELLIA_ROUNDSM(io[2], io[3], \
869 SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
870 io[0], io[1], il, ir); \
e2861a71
JK		 871})
872#define FLS(i) ({ \
621dd369
RH		 873 CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
874 SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
875 SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
876 t0, t1, il, ir); \
e2861a71 877})
acca79a6
DV		 878
879 ROUNDS(0);
880 FLS(8);
881 ROUNDS(8);
882 FLS(16);
883 ROUNDS(16);
884 if (max == 32) {
885 FLS(24);
886 ROUNDS(24);
887 }
d64beac0 888
acca79a6
DV		 889#undef ROUNDS
890#undef FLS
d64beac0
NT		 891
892 /* post whitening but kw4 */
acca79a6
DV		 893 io[2] ^= SUBKEY_L(max);
894 io[3] ^= SUBKEY_R(max);
895 /* NB: io[0],[1] should be swapped with [2],[3] by caller! */
d64beac0
NT		 896}
897
acca79a6 898static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i)
d64beac0 899{
621dd369 900 u32 il, ir, t0, t1; /* temporary variables */
d64beac0 901
1721a812 902 /* pre whitening but absorb kw2 */
acca79a6
DV		 903 io[0] ^= SUBKEY_L(i);
904 io[1] ^= SUBKEY_R(i);
d64beac0
NT		 905
906 /* main iteration */
e2861a71 907#define ROUNDS(i) ({ \
621dd369
RH		 908 CAMELLIA_ROUNDSM(io[0], io[1], \
909 SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
910 io[2], io[3], il, ir); \
911 CAMELLIA_ROUNDSM(io[2], io[3], \
912 SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
913 io[0], io[1], il, ir); \
914 CAMELLIA_ROUNDSM(io[0], io[1], \
915 SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
916 io[2], io[3], il, ir); \
917 CAMELLIA_ROUNDSM(io[2], io[3], \
918 SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
919 io[0], io[1], il, ir); \
920 CAMELLIA_ROUNDSM(io[0], io[1], \
921 SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
922 io[2], io[3], il, ir); \
923 CAMELLIA_ROUNDSM(io[2], io[3], \
924 SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
925 io[0], io[1], il, ir); \
e2861a71
JK		 926})
927#define FLS(i) ({ \
621dd369
RH		 928 CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
929 SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
930 SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
931 t0, t1, il, ir); \
e2861a71 932})
acca79a6
DV		 933
934 if (i == 32) {
935 ROUNDS(24);
936 FLS(24);
937 }
938 ROUNDS(16);
939 FLS(16);
940 ROUNDS(8);
941 FLS(8);
942 ROUNDS(0);
d64beac0 943
acca79a6
DV		 944#undef ROUNDS
945#undef FLS
d64beac0
NT		 946
947 /* post whitening but kw4 */
acca79a6
DV		 948 io[2] ^= SUBKEY_L(0);
949 io[3] ^= SUBKEY_R(0);
950 /* NB: 0,1 should be swapped with 2,3 by caller! */
d64beac0
NT		 951}
952
953
1721a812
DV		 954struct camellia_ctx {
955 int key_length;
2ddae4a6 956 u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)];
1721a812
DV		 957};
958
d64beac0
NT		 959static int
960camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key,
961 unsigned int key_len)
962{
963 struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
964 const unsigned char *key = (const unsigned char *)in_key;
d64beac0 965
674f368a 966 if (key_len != 16 && key_len != 24 && key_len != 32)
d64beac0 967 return -EINVAL;
d64beac0
NT		 968
969 cctx->key_length = key_len;
970
1721a812 971 switch (key_len) {
d64beac0
NT		 972 case 16:
973 camellia_setup128(key, cctx->key_table);
974 break;
975 case 24:
976 camellia_setup192(key, cctx->key_table);
977 break;
978 case 32:
979 camellia_setup256(key, cctx->key_table);
980 break;
d64beac0
NT		 981 }
982
983 return 0;
984}
985
d64beac0
NT		 986static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
987{
988 const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
e2861a71 989 unsigned int max;
d64beac0 990
3a5e5f81 991 u32 tmp[4];
d64beac0 992
83385415
AB		 993 tmp[0] = get_unaligned_be32(in);
994 tmp[1] = get_unaligned_be32(in + 4);
995 tmp[2] = get_unaligned_be32(in + 8);
996 tmp[3] = get_unaligned_be32(in + 12);
d64beac0 997
e2861a71
JK		 998 if (cctx->key_length == 16)
999 max = 24;
1000 else
1001 max = 32; /* for key lengths of 24 and 32 */
1002
1003 camellia_do_encrypt(cctx->key_table, tmp, max);
d64beac0 1004
acca79a6 1005 /* do_encrypt returns 0,1 swapped with 2,3 */
83385415
AB		 1006 put_unaligned_be32(tmp[2], out);
1007 put_unaligned_be32(tmp[3], out + 4);
1008 put_unaligned_be32(tmp[0], out + 8);
1009 put_unaligned_be32(tmp[1], out + 12);
d64beac0
NT		 1010}
1011
d64beac0
NT		 1012static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
1013{
1014 const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
e2861a71 1015 unsigned int max;
d64beac0 1016
3a5e5f81 1017 u32 tmp[4];
d64beac0 1018
83385415
AB		 1019 tmp[0] = get_unaligned_be32(in);
1020 tmp[1] = get_unaligned_be32(in + 4);
1021 tmp[2] = get_unaligned_be32(in + 8);
1022 tmp[3] = get_unaligned_be32(in + 12);
d64beac0 1023
e2861a71
JK		 1024 if (cctx->key_length == 16)
1025 max = 24;
1026 else
1027 max = 32; /* for key lengths of 24 and 32 */
1028
1029 camellia_do_decrypt(cctx->key_table, tmp, max);
d64beac0 1030
acca79a6 1031 /* do_decrypt returns 0,1 swapped with 2,3 */
83385415
AB		 1032 put_unaligned_be32(tmp[2], out);
1033 put_unaligned_be32(tmp[3], out + 4);
1034 put_unaligned_be32(tmp[0], out + 8);
1035 put_unaligned_be32(tmp[1], out + 12);
d64beac0
NT		 1036}
1037
d64beac0
NT		 1038static struct crypto_alg camellia_alg = {
1039 .cra_name = "camellia",
1040 .cra_driver_name = "camellia-generic",
1041 .cra_priority = 100,
1042 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
1043 .cra_blocksize = CAMELLIA_BLOCK_SIZE,
1044 .cra_ctxsize = sizeof(struct camellia_ctx),
d64beac0 1045 .cra_module = THIS_MODULE,
d64beac0
NT		 1046 .cra_u = {
1047 .cipher = {
1048 .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE,
1049 .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE,
1050 .cia_setkey = camellia_set_key,
1051 .cia_encrypt = camellia_encrypt,
1052 .cia_decrypt = camellia_decrypt
1053 }
1054 }
1055};
1056
1057static int __init camellia_init(void)
1058{
1059 return crypto_register_alg(&camellia_alg);
1060}
1061
d64beac0
NT		 1062static void __exit camellia_fini(void)
1063{
1064 crypto_unregister_alg(&camellia_alg);
1065}
1066
c4741b23 1067subsys_initcall(camellia_init);
d64beac0
NT		 1068module_exit(camellia_fini);
1069
d64beac0
NT		 1070MODULE_DESCRIPTION("Camellia Cipher Algorithm");
1071MODULE_LICENSE("GPL");
5d26a105 1072MODULE_ALIAS_CRYPTO("camellia");
3e14dcf7 1073MODULE_ALIAS_CRYPTO("camellia-generic");
Linux 6.x block layer and io_uring tree(s)