| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Denys Vlasenko | 3640 | 49.99% | 7 | 35.00% |
| Noriaki Takamiya | 3422 | 46.99% | 1 | 5.00% |
| Harvey Harrison | 78 | 1.07% | 1 | 5.00% |
| Ard Biesheuvel | 64 | 0.88% | 1 | 5.00% |
| Jussi Kivilinna | 43 | 0.59% | 2 | 10.00% |
| Herbert Xu | 13 | 0.18% | 2 | 10.00% |
| Julia Lawall | 12 | 0.16% | 1 | 5.00% |
| Mathias Krause | 5 | 0.07% | 1 | 5.00% |
| Thomas Gleixner | 2 | 0.03% | 1 | 5.00% |
| Eric Biggers | 1 | 0.01% | 1 | 5.00% |
| Kees Cook | 1 | 0.01% | 1 | 5.00% |
| Alexander A. Klimov | 1 | 0.01% | 1 | 5.00% |
| Total | 7282 | 20 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2006 * NTT (Nippon Telegraph and Telephone Corporation). */ /* * Algorithm Specification * https://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html */ #include <crypto/algapi.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/bitops.h> #include <asm/unaligned.h> static const u32 camellia_sp1110[256] = { 0x70707000, 0x82828200, 0x2c2c2c00, 0xececec00, 0xb3b3b300, 0x27272700, 0xc0c0c000, 0xe5e5e500, 0xe4e4e400, 0x85858500, 0x57575700, 0x35353500, 0xeaeaea00, 0x0c0c0c00, 0xaeaeae00, 0x41414100, 0x23232300, 0xefefef00, 0x6b6b6b00, 0x93939300, 0x45454500, 0x19191900, 0xa5a5a500, 0x21212100, 0xededed00, 0x0e0e0e00, 0x4f4f4f00, 0x4e4e4e00, 0x1d1d1d00, 0x65656500, 0x92929200, 0xbdbdbd00, 0x86868600, 0xb8b8b800, 0xafafaf00, 0x8f8f8f00, 0x7c7c7c00, 0xebebeb00, 0x1f1f1f00, 0xcecece00, 0x3e3e3e00, 0x30303000, 0xdcdcdc00, 0x5f5f5f00, 0x5e5e5e00, 0xc5c5c500, 0x0b0b0b00, 0x1a1a1a00, 0xa6a6a600, 0xe1e1e100, 0x39393900, 0xcacaca00, 0xd5d5d500, 0x47474700, 0x5d5d5d00, 0x3d3d3d00, 0xd9d9d900, 0x01010100, 0x5a5a5a00, 0xd6d6d600, 0x51515100, 0x56565600, 0x6c6c6c00, 0x4d4d4d00, 0x8b8b8b00, 0x0d0d0d00, 0x9a9a9a00, 0x66666600, 0xfbfbfb00, 0xcccccc00, 0xb0b0b000, 0x2d2d2d00, 0x74747400, 0x12121200, 0x2b2b2b00, 0x20202000, 0xf0f0f000, 0xb1b1b100, 0x84848400, 0x99999900, 0xdfdfdf00, 0x4c4c4c00, 0xcbcbcb00, 0xc2c2c200, 0x34343400, 0x7e7e7e00, 0x76767600, 0x05050500, 0x6d6d6d00, 0xb7b7b700, 0xa9a9a900, 0x31313100, 0xd1d1d100, 0x17171700, 0x04040400, 0xd7d7d700, 0x14141400, 0x58585800, 0x3a3a3a00, 0x61616100, 0xdedede00, 0x1b1b1b00, 0x11111100, 0x1c1c1c00, 0x32323200, 0x0f0f0f00, 0x9c9c9c00, 0x16161600, 0x53535300, 0x18181800, 0xf2f2f200, 0x22222200, 0xfefefe00, 0x44444400, 0xcfcfcf00, 0xb2b2b200, 0xc3c3c300, 0xb5b5b500, 0x7a7a7a00, 0x91919100, 0x24242400, 0x08080800, 0xe8e8e800, 0xa8a8a800, 0x60606000, 0xfcfcfc00, 0x69696900, 0x50505000, 0xaaaaaa00, 0xd0d0d000, 0xa0a0a000, 0x7d7d7d00, 0xa1a1a100, 0x89898900, 0x62626200, 0x97979700, 0x54545400, 0x5b5b5b00, 0x1e1e1e00, 0x95959500, 0xe0e0e000, 0xffffff00, 0x64646400, 0xd2d2d200, 0x10101000, 0xc4c4c400, 0x00000000, 0x48484800, 0xa3a3a300, 0xf7f7f700, 0x75757500, 0xdbdbdb00, 0x8a8a8a00, 0x03030300, 0xe6e6e600, 0xdadada00, 0x09090900, 0x3f3f3f00, 0xdddddd00, 0x94949400, 0x87878700, 0x5c5c5c00, 0x83838300, 0x02020200, 0xcdcdcd00, 0x4a4a4a00, 0x90909000, 0x33333300, 0x73737300, 0x67676700, 0xf6f6f600, 0xf3f3f300, 0x9d9d9d00, 0x7f7f7f00, 0xbfbfbf00, 0xe2e2e200, 0x52525200, 0x9b9b9b00, 0xd8d8d800, 0x26262600, 0xc8c8c800, 0x37373700, 0xc6c6c600, 0x3b3b3b00, 0x81818100, 0x96969600, 0x6f6f6f00, 0x4b4b4b00, 0x13131300, 0xbebebe00, 0x63636300, 0x2e2e2e00, 0xe9e9e900, 0x79797900, 0xa7a7a700, 0x8c8c8c00, 0x9f9f9f00, 0x6e6e6e00, 0xbcbcbc00, 0x8e8e8e00, 0x29292900, 0xf5f5f500, 0xf9f9f900, 0xb6b6b600, 0x2f2f2f00, 0xfdfdfd00, 0xb4b4b400, 0x59595900, 0x78787800, 0x98989800, 0x06060600, 0x6a6a6a00, 0xe7e7e700, 0x46464600, 0x71717100, 0xbababa00, 0xd4d4d400, 0x25252500, 0xababab00, 0x42424200, 0x88888800, 0xa2a2a200, 0x8d8d8d00, 0xfafafa00, 0x72727200, 0x07070700, 0xb9b9b900, 0x55555500, 0xf8f8f800, 0xeeeeee00, 0xacacac00, 0x0a0a0a00, 0x36363600, 0x49494900, 0x2a2a2a00, 0x68686800, 0x3c3c3c00, 0x38383800, 0xf1f1f100, 0xa4a4a400, 0x40404000, 0x28282800, 0xd3d3d300, 0x7b7b7b00, 0xbbbbbb00, 0xc9c9c900, 0x43434300, 0xc1c1c100, 0x15151500, 0xe3e3e300, 0xadadad00, 0xf4f4f400, 0x77777700, 0xc7c7c700, 0x80808000, 0x9e9e9e00, }; static const u32 camellia_sp0222[256] = { 0x00e0e0e0, 0x00050505, 0x00585858, 0x00d9d9d9, 0x00676767, 0x004e4e4e, 0x00818181, 0x00cbcbcb, 0x00c9c9c9, 0x000b0b0b, 0x00aeaeae, 0x006a6a6a, 0x00d5d5d5, 0x00181818, 0x005d5d5d, 0x00828282, 0x00464646, 0x00dfdfdf, 0x00d6d6d6, 0x00272727, 0x008a8a8a, 0x00323232, 0x004b4b4b, 0x00424242, 0x00dbdbdb, 0x001c1c1c, 0x009e9e9e, 0x009c9c9c, 0x003a3a3a, 0x00cacaca, 0x00252525, 0x007b7b7b, 0x000d0d0d, 0x00717171, 0x005f5f5f, 0x001f1f1f, 0x00f8f8f8, 0x00d7d7d7, 0x003e3e3e, 0x009d9d9d, 0x007c7c7c, 0x00606060, 0x00b9b9b9, 0x00bebebe, 0x00bcbcbc, 0x008b8b8b, 0x00161616, 0x00343434, 0x004d4d4d, 0x00c3c3c3, 0x00727272, 0x00959595, 0x00ababab, 0x008e8e8e, 0x00bababa, 0x007a7a7a, 0x00b3b3b3, 0x00020202, 0x00b4b4b4, 0x00adadad, 0x00a2a2a2, 0x00acacac, 0x00d8d8d8, 0x009a9a9a, 0x00171717, 0x001a1a1a, 0x00353535, 0x00cccccc, 0x00f7f7f7, 0x00999999, 0x00616161, 0x005a5a5a, 0x00e8e8e8, 0x00242424, 0x00565656, 0x00404040, 0x00e1e1e1, 0x00636363, 0x00090909, 0x00333333, 0x00bfbfbf, 0x00989898, 0x00979797, 0x00858585, 0x00686868, 0x00fcfcfc, 0x00ececec, 0x000a0a0a, 0x00dadada, 0x006f6f6f, 0x00535353, 0x00626262, 0x00a3a3a3, 0x002e2e2e, 0x00080808, 0x00afafaf, 0x00282828, 0x00b0b0b0, 0x00747474, 0x00c2c2c2, 0x00bdbdbd, 0x00363636, 0x00222222, 0x00383838, 0x00646464, 0x001e1e1e, 0x00393939, 0x002c2c2c, 0x00a6a6a6, 0x00303030, 0x00e5e5e5, 0x00444444, 0x00fdfdfd, 0x00888888, 0x009f9f9f, 0x00656565, 0x00878787, 0x006b6b6b, 0x00f4f4f4, 0x00232323, 0x00484848, 0x00101010, 0x00d1d1d1, 0x00515151, 0x00c0c0c0, 0x00f9f9f9, 0x00d2d2d2, 0x00a0a0a0, 0x00555555, 0x00a1a1a1, 0x00414141, 0x00fafafa, 0x00434343, 0x00131313, 0x00c4c4c4, 0x002f2f2f, 0x00a8a8a8, 0x00b6b6b6, 0x003c3c3c, 0x002b2b2b, 0x00c1c1c1, 0x00ffffff, 0x00c8c8c8, 0x00a5a5a5, 0x00202020, 0x00898989, 0x00000000, 0x00909090, 0x00474747, 0x00efefef, 0x00eaeaea, 0x00b7b7b7, 0x00151515, 0x00060606, 0x00cdcdcd, 0x00b5b5b5, 0x00121212, 0x007e7e7e, 0x00bbbbbb, 0x00292929, 0x000f0f0f, 0x00b8b8b8, 0x00070707, 0x00040404, 0x009b9b9b, 0x00949494, 0x00212121, 0x00666666, 0x00e6e6e6, 0x00cecece, 0x00ededed, 0x00e7e7e7, 0x003b3b3b, 0x00fefefe, 0x007f7f7f, 0x00c5c5c5, 0x00a4a4a4, 0x00373737, 0x00b1b1b1, 0x004c4c4c, 0x00919191, 0x006e6e6e, 0x008d8d8d, 0x00767676, 0x00030303, 0x002d2d2d, 0x00dedede, 0x00969696, 0x00262626, 0x007d7d7d, 0x00c6c6c6, 0x005c5c5c, 0x00d3d3d3, 0x00f2f2f2, 0x004f4f4f, 0x00191919, 0x003f3f3f, 0x00dcdcdc, 0x00797979, 0x001d1d1d, 0x00525252, 0x00ebebeb, 0x00f3f3f3, 0x006d6d6d, 0x005e5e5e, 0x00fbfbfb, 0x00696969, 0x00b2b2b2, 0x00f0f0f0, 0x00313131, 0x000c0c0c, 0x00d4d4d4, 0x00cfcfcf, 0x008c8c8c, 0x00e2e2e2, 0x00757575, 0x00a9a9a9, 0x004a4a4a, 0x00575757, 0x00848484, 0x00111111, 0x00454545, 0x001b1b1b, 0x00f5f5f5, 0x00e4e4e4, 0x000e0e0e, 0x00737373, 0x00aaaaaa, 0x00f1f1f1, 0x00dddddd, 0x00595959, 0x00141414, 0x006c6c6c, 0x00929292, 0x00545454, 0x00d0d0d0, 0x00787878, 0x00707070, 0x00e3e3e3, 0x00494949, 0x00808080, 0x00505050, 0x00a7a7a7, 0x00f6f6f6, 0x00777777, 0x00939393, 0x00868686, 0x00838383, 0x002a2a2a, 0x00c7c7c7, 0x005b5b5b, 0x00e9e9e9, 0x00eeeeee, 0x008f8f8f, 0x00010101, 0x003d3d3d, }; static const u32 camellia_sp3033[256] = { 0x38003838, 0x41004141, 0x16001616, 0x76007676, 0xd900d9d9, 0x93009393, 0x60006060, 0xf200f2f2, 0x72007272, 0xc200c2c2, 0xab00abab, 0x9a009a9a, 0x75007575, 0x06000606, 0x57005757, 0xa000a0a0, 0x91009191, 0xf700f7f7, 0xb500b5b5, 0xc900c9c9, 0xa200a2a2, 0x8c008c8c, 0xd200d2d2, 0x90009090, 0xf600f6f6, 0x07000707, 0xa700a7a7, 0x27002727, 0x8e008e8e, 0xb200b2b2, 0x49004949, 0xde00dede, 0x43004343, 0x5c005c5c, 0xd700d7d7, 0xc700c7c7, 0x3e003e3e, 0xf500f5f5, 0x8f008f8f, 0x67006767, 0x1f001f1f, 0x18001818, 0x6e006e6e, 0xaf00afaf, 0x2f002f2f, 0xe200e2e2, 0x85008585, 0x0d000d0d, 0x53005353, 0xf000f0f0, 0x9c009c9c, 0x65006565, 0xea00eaea, 0xa300a3a3, 0xae00aeae, 0x9e009e9e, 0xec00ecec, 0x80008080, 0x2d002d2d, 0x6b006b6b, 0xa800a8a8, 0x2b002b2b, 0x36003636, 0xa600a6a6, 0xc500c5c5, 0x86008686, 0x4d004d4d, 0x33003333, 0xfd00fdfd, 0x66006666, 0x58005858, 0x96009696, 0x3a003a3a, 0x09000909, 0x95009595, 0x10001010, 0x78007878, 0xd800d8d8, 0x42004242, 0xcc00cccc, 0xef00efef, 0x26002626, 0xe500e5e5, 0x61006161, 0x1a001a1a, 0x3f003f3f, 0x3b003b3b, 0x82008282, 0xb600b6b6, 0xdb00dbdb, 0xd400d4d4, 0x98009898, 0xe800e8e8, 0x8b008b8b, 0x02000202, 0xeb00ebeb, 0x0a000a0a, 0x2c002c2c, 0x1d001d1d, 0xb000b0b0, 0x6f006f6f, 0x8d008d8d, 0x88008888, 0x0e000e0e, 0x19001919, 0x87008787, 0x4e004e4e, 0x0b000b0b, 0xa900a9a9, 0x0c000c0c, 0x79007979, 0x11001111, 0x7f007f7f, 0x22002222, 0xe700e7e7, 0x59005959, 0xe100e1e1, 0xda00dada, 0x3d003d3d, 0xc800c8c8, 0x12001212, 0x04000404, 0x74007474, 0x54005454, 0x30003030, 0x7e007e7e, 0xb400b4b4, 0x28002828, 0x55005555, 0x68006868, 0x50005050, 0xbe00bebe, 0xd000d0d0, 0xc400c4c4, 0x31003131, 0xcb00cbcb, 0x2a002a2a, 0xad00adad, 0x0f000f0f, 0xca00caca, 0x70007070, 0xff00ffff, 0x32003232, 0x69006969, 0x08000808, 0x62006262, 0x00000000, 0x24002424, 0xd100d1d1, 0xfb00fbfb, 0xba00baba, 0xed00eded, 0x45004545, 0x81008181, 0x73007373, 0x6d006d6d, 0x84008484, 0x9f009f9f, 0xee00eeee, 0x4a004a4a, 0xc300c3c3, 0x2e002e2e, 0xc100c1c1, 0x01000101, 0xe600e6e6, 0x25002525, 0x48004848, 0x99009999, 0xb900b9b9, 0xb300b3b3, 0x7b007b7b, 0xf900f9f9, 0xce00cece, 0xbf00bfbf, 0xdf00dfdf, 0x71007171, 0x29002929, 0xcd00cdcd, 0x6c006c6c, 0x13001313, 0x64006464, 0x9b009b9b, 0x63006363, 0x9d009d9d, 0xc000c0c0, 0x4b004b4b, 0xb700b7b7, 0xa500a5a5, 0x89008989, 0x5f005f5f, 0xb100b1b1, 0x17001717, 0xf400f4f4, 0xbc00bcbc, 0xd300d3d3, 0x46004646, 0xcf00cfcf, 0x37003737, 0x5e005e5e, 0x47004747, 0x94009494, 0xfa00fafa, 0xfc00fcfc, 0x5b005b5b, 0x97009797, 0xfe00fefe, 0x5a005a5a, 0xac00acac, 0x3c003c3c, 0x4c004c4c, 0x03000303, 0x35003535, 0xf300f3f3, 0x23002323, 0xb800b8b8, 0x5d005d5d, 0x6a006a6a, 0x92009292, 0xd500d5d5, 0x21002121, 0x44004444, 0x51005151, 0xc600c6c6, 0x7d007d7d, 0x39003939, 0x83008383, 0xdc00dcdc, 0xaa00aaaa, 0x7c007c7c, 0x77007777, 0x56005656, 0x05000505, 0x1b001b1b, 0xa400a4a4, 0x15001515, 0x34003434, 0x1e001e1e, 0x1c001c1c, 0xf800f8f8, 0x52005252, 0x20002020, 0x14001414, 0xe900e9e9, 0xbd00bdbd, 0xdd00dddd, 0xe400e4e4, 0xa100a1a1, 0xe000e0e0, 0x8a008a8a, 0xf100f1f1, 0xd600d6d6, 0x7a007a7a, 0xbb00bbbb, 0xe300e3e3, 0x40004040, 0x4f004f4f, }; static const u32 camellia_sp4404[256] = { 0x70700070, 0x2c2c002c, 0xb3b300b3, 0xc0c000c0, 0xe4e400e4, 0x57570057, 0xeaea00ea, 0xaeae00ae, 0x23230023, 0x6b6b006b, 0x45450045, 0xa5a500a5, 0xeded00ed, 0x4f4f004f, 0x1d1d001d, 0x92920092, 0x86860086, 0xafaf00af, 0x7c7c007c, 0x1f1f001f, 0x3e3e003e, 0xdcdc00dc, 0x5e5e005e, 0x0b0b000b, 0xa6a600a6, 0x39390039, 0xd5d500d5, 0x5d5d005d, 0xd9d900d9, 0x5a5a005a, 0x51510051, 0x6c6c006c, 0x8b8b008b, 0x9a9a009a, 0xfbfb00fb, 0xb0b000b0, 0x74740074, 0x2b2b002b, 0xf0f000f0, 0x84840084, 0xdfdf00df, 0xcbcb00cb, 0x34340034, 0x76760076, 0x6d6d006d, 0xa9a900a9, 0xd1d100d1, 0x04040004, 0x14140014, 0x3a3a003a, 0xdede00de, 0x11110011, 0x32320032, 0x9c9c009c, 0x53530053, 0xf2f200f2, 0xfefe00fe, 0xcfcf00cf, 0xc3c300c3, 0x7a7a007a, 0x24240024, 0xe8e800e8, 0x60600060, 0x69690069, 0xaaaa00aa, 0xa0a000a0, 0xa1a100a1, 0x62620062, 0x54540054, 0x1e1e001e, 0xe0e000e0, 0x64640064, 0x10100010, 0x00000000, 0xa3a300a3, 0x75750075, 0x8a8a008a, 0xe6e600e6, 0x09090009, 0xdddd00dd, 0x87870087, 0x83830083, 0xcdcd00cd, 0x90900090, 0x73730073, 0xf6f600f6, 0x9d9d009d, 0xbfbf00bf, 0x52520052, 0xd8d800d8, 0xc8c800c8, 0xc6c600c6, 0x81810081, 0x6f6f006f, 0x13130013, 0x63630063, 0xe9e900e9, 0xa7a700a7, 0x9f9f009f, 0xbcbc00bc, 0x29290029, 0xf9f900f9, 0x2f2f002f, 0xb4b400b4, 0x78780078, 0x06060006, 0xe7e700e7, 0x71710071, 0xd4d400d4, 0xabab00ab, 0x88880088, 0x8d8d008d, 0x72720072, 0xb9b900b9, 0xf8f800f8, 0xacac00ac, 0x36360036, 0x2a2a002a, 0x3c3c003c, 0xf1f100f1, 0x40400040, 0xd3d300d3, 0xbbbb00bb, 0x43430043, 0x15150015, 0xadad00ad, 0x77770077, 0x80800080, 0x82820082, 0xecec00ec, 0x27270027, 0xe5e500e5, 0x85850085, 0x35350035, 0x0c0c000c, 0x41410041, 0xefef00ef, 0x93930093, 0x19190019, 0x21210021, 0x0e0e000e, 0x4e4e004e, 0x65650065, 0xbdbd00bd, 0xb8b800b8, 0x8f8f008f, 0xebeb00eb, 0xcece00ce, 0x30300030, 0x5f5f005f, 0xc5c500c5, 0x1a1a001a, 0xe1e100e1, 0xcaca00ca, 0x47470047, 0x3d3d003d, 0x01010001, 0xd6d600d6, 0x56560056, 0x4d4d004d, 0x0d0d000d, 0x66660066, 0xcccc00cc, 0x2d2d002d, 0x12120012, 0x20200020, 0xb1b100b1, 0x99990099, 0x4c4c004c, 0xc2c200c2, 0x7e7e007e, 0x05050005, 0xb7b700b7, 0x31310031, 0x17170017, 0xd7d700d7, 0x58580058, 0x61610061, 0x1b1b001b, 0x1c1c001c, 0x0f0f000f, 0x16160016, 0x18180018, 0x22220022, 0x44440044, 0xb2b200b2, 0xb5b500b5, 0x91910091, 0x08080008, 0xa8a800a8, 0xfcfc00fc, 0x50500050, 0xd0d000d0, 0x7d7d007d, 0x89890089, 0x97970097, 0x5b5b005b, 0x95950095, 0xffff00ff, 0xd2d200d2, 0xc4c400c4, 0x48480048, 0xf7f700f7, 0xdbdb00db, 0x03030003, 0xdada00da, 0x3f3f003f, 0x94940094, 0x5c5c005c, 0x02020002, 0x4a4a004a, 0x33330033, 0x67670067, 0xf3f300f3, 0x7f7f007f, 0xe2e200e2, 0x9b9b009b, 0x26260026, 0x37370037, 0x3b3b003b, 0x96960096, 0x4b4b004b, 0xbebe00be, 0x2e2e002e, 0x79790079, 0x8c8c008c, 0x6e6e006e, 0x8e8e008e, 0xf5f500f5, 0xb6b600b6, 0xfdfd00fd, 0x59590059, 0x98980098, 0x6a6a006a, 0x46460046, 0xbaba00ba, 0x25250025, 0x42420042, 0xa2a200a2, 0xfafa00fa, 0x07070007, 0x55550055, 0xeeee00ee, 0x0a0a000a, 0x49490049, 0x68680068, 0x38380038, 0xa4a400a4, 0x28280028, 0x7b7b007b, 0xc9c900c9, 0xc1c100c1, 0xe3e300e3, 0xf4f400f4, 0xc7c700c7, 0x9e9e009e, }; #define CAMELLIA_MIN_KEY_SIZE 16 #define CAMELLIA_MAX_KEY_SIZE 32 #define CAMELLIA_BLOCK_SIZE 16 #define CAMELLIA_TABLE_BYTE_LEN 272 /* * NB: L and R below stand for 'left' and 'right' as in written numbers. * That is, in (xxxL,xxxR) pair xxxL holds most significant digits, * _not_ least significant ones! */ /* key constants */ #define CAMELLIA_SIGMA1L (0xA09E667FL) #define CAMELLIA_SIGMA1R (0x3BCC908BL) #define CAMELLIA_SIGMA2L (0xB67AE858L) #define CAMELLIA_SIGMA2R (0x4CAA73B2L) #define CAMELLIA_SIGMA3L (0xC6EF372FL) #define CAMELLIA_SIGMA3R (0xE94F82BEL) #define CAMELLIA_SIGMA4L (0x54FF53A5L) #define CAMELLIA_SIGMA4R (0xF1D36F1CL) #define CAMELLIA_SIGMA5L (0x10E527FAL) #define CAMELLIA_SIGMA5R (0xDE682D1DL) #define CAMELLIA_SIGMA6L (0xB05688C2L) #define CAMELLIA_SIGMA6R (0xB3E6C1FDL) /* * macros */ #define ROLDQ(ll, lr, rl, rr, w0, w1, bits) ({ \ w0 = ll; \ ll = (ll << bits) + (lr >> (32 - bits)); \ lr = (lr << bits) + (rl >> (32 - bits)); \ rl = (rl << bits) + (rr >> (32 - bits)); \ rr = (rr << bits) + (w0 >> (32 - bits)); \ }) #define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) ({ \ w0 = ll; \ w1 = lr; \ ll = (lr << (bits - 32)) + (rl >> (64 - bits)); \ lr = (rl << (bits - 32)) + (rr >> (64 - bits)); \ rl = (rr << (bits - 32)) + (w0 >> (64 - bits)); \ rr = (w0 << (bits - 32)) + (w1 >> (64 - bits)); \ }) #define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) ({ \ il = xl ^ kl; \ ir = xr ^ kr; \ t0 = il >> 16; \ t1 = ir >> 16; \ yl = camellia_sp1110[(u8)(ir)] \ ^ camellia_sp0222[(u8)(t1 >> 8)] \ ^ camellia_sp3033[(u8)(t1)] \ ^ camellia_sp4404[(u8)(ir >> 8)]; \ yr = camellia_sp1110[(u8)(t0 >> 8)] \ ^ camellia_sp0222[(u8)(t0)] \ ^ camellia_sp3033[(u8)(il >> 8)] \ ^ camellia_sp4404[(u8)(il)]; \ yl ^= yr; \ yr = ror32(yr, 8); \ yr ^= yl; \ }) #define SUBKEY_L(INDEX) (subkey[(INDEX)*2]) #define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1]) static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max) { u32 dw, tl, tr; u32 kw4l, kw4r; /* absorb kw2 to other subkeys */ /* round 2 */ subL[3] ^= subL[1]; subR[3] ^= subR[1]; /* round 4 */ subL[5] ^= subL[1]; subR[5] ^= subR[1]; /* round 6 */ subL[7] ^= subL[1]; subR[7] ^= subR[1]; subL[1] ^= subR[1] & ~subR[9]; dw = subL[1] & subL[9]; subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl2) */ /* round 8 */ subL[11] ^= subL[1]; subR[11] ^= subR[1]; /* round 10 */ subL[13] ^= subL[1]; subR[13] ^= subR[1]; /* round 12 */ subL[15] ^= subL[1]; subR[15] ^= subR[1]; subL[1] ^= subR[1] & ~subR[17]; dw = subL[1] & subL[17]; subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl4) */ /* round 14 */ subL[19] ^= subL[1]; subR[19] ^= subR[1]; /* round 16 */ subL[21] ^= subL[1]; subR[21] ^= subR[1]; /* round 18 */ subL[23] ^= subL[1]; subR[23] ^= subR[1]; if (max == 24) { /* kw3 */ subL[24] ^= subL[1]; subR[24] ^= subR[1]; /* absorb kw4 to other subkeys */ kw4l = subL[25]; kw4r = subR[25]; } else { subL[1] ^= subR[1] & ~subR[25]; dw = subL[1] & subL[25]; subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl6) */ /* round 20 */ subL[27] ^= subL[1]; subR[27] ^= subR[1]; /* round 22 */ subL[29] ^= subL[1]; subR[29] ^= subR[1]; /* round 24 */ subL[31] ^= subL[1]; subR[31] ^= subR[1]; /* kw3 */ subL[32] ^= subL[1]; subR[32] ^= subR[1]; /* absorb kw4 to other subkeys */ kw4l = subL[33]; kw4r = subR[33]; /* round 23 */ subL[30] ^= kw4l; subR[30] ^= kw4r; /* round 21 */ subL[28] ^= kw4l; subR[28] ^= kw4r; /* round 19 */ subL[26] ^= kw4l; subR[26] ^= kw4r; kw4l ^= kw4r & ~subR[24]; dw = kw4l & subL[24]; kw4r ^= rol32(dw, 1); /* modified for FL(kl5) */ } /* round 17 */ subL[22] ^= kw4l; subR[22] ^= kw4r; /* round 15 */ subL[20] ^= kw4l; subR[20] ^= kw4r; /* round 13 */ subL[18] ^= kw4l; subR[18] ^= kw4r; kw4l ^= kw4r & ~subR[16]; dw = kw4l & subL[16]; kw4r ^= rol32(dw, 1); /* modified for FL(kl3) */ /* round 11 */ subL[14] ^= kw4l; subR[14] ^= kw4r; /* round 9 */ subL[12] ^= kw4l; subR[12] ^= kw4r; /* round 7 */ subL[10] ^= kw4l; subR[10] ^= kw4r; kw4l ^= kw4r & ~subR[8]; dw = kw4l & subL[8]; kw4r ^= rol32(dw, 1); /* modified for FL(kl1) */ /* round 5 */ subL[6] ^= kw4l; subR[6] ^= kw4r; /* round 3 */ subL[4] ^= kw4l; subR[4] ^= kw4r; /* round 1 */ subL[2] ^= kw4l; subR[2] ^= kw4r; /* kw1 */ subL[0] ^= kw4l; subR[0] ^= kw4r; /* key XOR is end of F-function */ SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */ SUBKEY_R(0) = subR[0] ^ subR[2]; SUBKEY_L(2) = subL[3]; /* round 1 */ SUBKEY_R(2) = subR[3]; SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */ SUBKEY_R(3) = subR[2] ^ subR[4]; SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */ SUBKEY_R(4) = subR[3] ^ subR[5]; SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */ SUBKEY_R(5) = subR[4] ^ subR[6]; SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */ SUBKEY_R(6) = subR[5] ^ subR[7]; tl = subL[10] ^ (subR[10] & ~subR[8]); dw = tl & subL[8]; /* FL(kl1) */ tr = subR[10] ^ rol32(dw, 1); SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */ SUBKEY_R(7) = subR[6] ^ tr; SUBKEY_L(8) = subL[8]; /* FL(kl1) */ SUBKEY_R(8) = subR[8]; SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */ SUBKEY_R(9) = subR[9]; tl = subL[7] ^ (subR[7] & ~subR[9]); dw = tl & subL[9]; /* FLinv(kl2) */ tr = subR[7] ^ rol32(dw, 1); SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */ SUBKEY_R(10) = tr ^ subR[11]; SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */ SUBKEY_R(11) = subR[10] ^ subR[12]; SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */ SUBKEY_R(12) = subR[11] ^ subR[13]; SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */ SUBKEY_R(13) = subR[12] ^ subR[14]; SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */ SUBKEY_R(14) = subR[13] ^ subR[15]; tl = subL[18] ^ (subR[18] & ~subR[16]); dw = tl & subL[16]; /* FL(kl3) */ tr = subR[18] ^ rol32(dw, 1); SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */ SUBKEY_R(15) = subR[14] ^ tr; SUBKEY_L(16) = subL[16]; /* FL(kl3) */ SUBKEY_R(16) = subR[16]; SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */ SUBKEY_R(17) = subR[17]; tl = subL[15] ^ (subR[15] & ~subR[17]); dw = tl & subL[17]; /* FLinv(kl4) */ tr = subR[15] ^ rol32(dw, 1); SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */ SUBKEY_R(18) = tr ^ subR[19]; SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */ SUBKEY_R(19) = subR[18] ^ subR[20]; SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */ SUBKEY_R(20) = subR[19] ^ subR[21]; SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */ SUBKEY_R(21) = subR[20] ^ subR[22]; SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */ SUBKEY_R(22) = subR[21] ^ subR[23]; if (max == 24) { SUBKEY_L(23) = subL[22]; /* round 18 */ SUBKEY_R(23) = subR[22]; SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */ SUBKEY_R(24) = subR[24] ^ subR[23]; } else { tl = subL[26] ^ (subR[26] & ~subR[24]); dw = tl & subL[24]; /* FL(kl5) */ tr = subR[26] ^ rol32(dw, 1); SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */ SUBKEY_R(23) = subR[22] ^ tr; SUBKEY_L(24) = subL[24]; /* FL(kl5) */ SUBKEY_R(24) = subR[24]; SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */ SUBKEY_R(25) = subR[25]; tl = subL[23] ^ (subR[23] & ~subR[25]); dw = tl & subL[25]; /* FLinv(kl6) */ tr = subR[23] ^ rol32(dw, 1); SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */ SUBKEY_R(26) = tr ^ subR[27]; SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */ SUBKEY_R(27) = subR[26] ^ subR[28]; SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */ SUBKEY_R(28) = subR[27] ^ subR[29]; SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */ SUBKEY_R(29) = subR[28] ^ subR[30]; SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */ SUBKEY_R(30) = subR[29] ^ subR[31]; SUBKEY_L(31) = subL[30]; /* round 24 */ SUBKEY_R(31) = subR[30]; SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */ SUBKEY_R(32) = subR[32] ^ subR[31]; } } static void camellia_setup128(const unsigned char *key, u32 *subkey) { u32 kll, klr, krl, krr; u32 il, ir, t0, t1, w0, w1; u32 subL[26]; u32 subR[26]; /** * k == kll || klr || krl || krr (|| is concatenation) */ kll = get_unaligned_be32(key); klr = get_unaligned_be32(key + 4); krl = get_unaligned_be32(key + 8); krr = get_unaligned_be32(key + 12); /* generate KL dependent subkeys */ /* kw1 */ subL[0] = kll; subR[0] = klr; /* kw2 */ subL[1] = krl; subR[1] = krr; /* rotation left shift 15bit */ ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* k3 */ subL[4] = kll; subR[4] = klr; /* k4 */ subL[5] = krl; subR[5] = krr; /* rotation left shift 15+30bit */ ROLDQ(kll, klr, krl, krr, w0, w1, 30); /* k7 */ subL[10] = kll; subR[10] = klr; /* k8 */ subL[11] = krl; subR[11] = krr; /* rotation left shift 15+30+15bit */ ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* k10 */ subL[13] = krl; subR[13] = krr; /* rotation left shift 15+30+15+17 bit */ ROLDQ(kll, klr, krl, krr, w0, w1, 17); /* kl3 */ subL[16] = kll; subR[16] = klr; /* kl4 */ subL[17] = krl; subR[17] = krr; /* rotation left shift 15+30+15+17+17 bit */ ROLDQ(kll, klr, krl, krr, w0, w1, 17); /* k13 */ subL[18] = kll; subR[18] = klr; /* k14 */ subL[19] = krl; subR[19] = krr; /* rotation left shift 15+30+15+17+17+17 bit */ ROLDQ(kll, klr, krl, krr, w0, w1, 17); /* k17 */ subL[22] = kll; subR[22] = klr; /* k18 */ subL[23] = krl; subR[23] = krr; /* generate KA */ kll = subL[0]; klr = subR[0]; krl = subL[1]; krr = subR[1]; CAMELLIA_F(kll, klr, CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, w0, w1, il, ir, t0, t1); krl ^= w0; krr ^= w1; CAMELLIA_F(krl, krr, CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, kll, klr, il, ir, t0, t1); /* current status == (kll, klr, w0, w1) */ CAMELLIA_F(kll, klr, CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, krl, krr, il, ir, t0, t1); krl ^= w0; krr ^= w1; CAMELLIA_F(krl, krr, CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, w0, w1, il, ir, t0, t1); kll ^= w0; klr ^= w1; /* generate KA dependent subkeys */ /* k1, k2 */ subL[2] = kll; subR[2] = klr; subL[3] = krl; subR[3] = krr; ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* k5,k6 */ subL[6] = kll; subR[6] = klr; subL[7] = krl; subR[7] = krr; ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* kl1, kl2 */ subL[8] = kll; subR[8] = klr; subL[9] = krl; subR[9] = krr; ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* k9 */ subL[12] = kll; subR[12] = klr; ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* k11, k12 */ subL[14] = kll; subR[14] = klr; subL[15] = krl; subR[15] = krr; ROLDQo32(kll, klr, krl, krr, w0, w1, 34); /* k15, k16 */ subL[20] = kll; subR[20] = klr; subL[21] = krl; subR[21] = krr; ROLDQ(kll, klr, krl, krr, w0, w1, 17); /* kw3, kw4 */ subL[24] = kll; subR[24] = klr; subL[25] = krl; subR[25] = krr; camellia_setup_tail(subkey, subL, subR, 24); } static void camellia_setup256(const unsigned char *key, u32 *subkey) { u32 kll, klr, krl, krr; /* left half of key */ u32 krll, krlr, krrl, krrr; /* right half of key */ u32 il, ir, t0, t1, w0, w1; /* temporary variables */ u32 subL[34]; u32 subR[34]; /** * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr) * (|| is concatenation) */ kll = get_unaligned_be32(key); klr = get_unaligned_be32(key + 4); krl = get_unaligned_be32(key + 8); krr = get_unaligned_be32(key + 12); krll = get_unaligned_be32(key + 16); krlr = get_unaligned_be32(key + 20); krrl = get_unaligned_be32(key + 24); krrr = get_unaligned_be32(key + 28); /* generate KL dependent subkeys */ /* kw1 */ subL[0] = kll; subR[0] = klr; /* kw2 */ subL[1] = krl; subR[1] = krr; ROLDQo32(kll, klr, krl, krr, w0, w1, 45); /* k9 */ subL[12] = kll; subR[12] = klr; /* k10 */ subL[13] = krl; subR[13] = krr; ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* kl3 */ subL[16] = kll; subR[16] = klr; /* kl4 */ subL[17] = krl; subR[17] = krr; ROLDQ(kll, klr, krl, krr, w0, w1, 17); /* k17 */ subL[22] = kll; subR[22] = klr; /* k18 */ subL[23] = krl; subR[23] = krr; ROLDQo32(kll, klr, krl, krr, w0, w1, 34); /* k23 */ subL[30] = kll; subR[30] = klr; /* k24 */ subL[31] = krl; subR[31] = krr; /* generate KR dependent subkeys */ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15); /* k3 */ subL[4] = krll; subR[4] = krlr; /* k4 */ subL[5] = krrl; subR[5] = krrr; ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15); /* kl1 */ subL[8] = krll; subR[8] = krlr; /* kl2 */ subL[9] = krrl; subR[9] = krrr; ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); /* k13 */ subL[18] = krll; subR[18] = krlr; /* k14 */ subL[19] = krrl; subR[19] = krrr; ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34); /* k19 */ subL[26] = krll; subR[26] = krlr; /* k20 */ subL[27] = krrl; subR[27] = krrr; ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34); /* generate KA */ kll = subL[0] ^ krll; klr = subR[0] ^ krlr; krl = subL[1] ^ krrl; krr = subR[1] ^ krrr; CAMELLIA_F(kll, klr, CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, w0, w1, il, ir, t0, t1); krl ^= w0; krr ^= w1; CAMELLIA_F(krl, krr, CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, kll, klr, il, ir, t0, t1); kll ^= krll; klr ^= krlr; CAMELLIA_F(kll, klr, CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, krl, krr, il, ir, t0, t1); krl ^= w0 ^ krrl; krr ^= w1 ^ krrr; CAMELLIA_F(krl, krr, CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, w0, w1, il, ir, t0, t1); kll ^= w0; klr ^= w1; /* generate KB */ krll ^= kll; krlr ^= klr; krrl ^= krl; krrr ^= krr; CAMELLIA_F(krll, krlr, CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R, w0, w1, il, ir, t0, t1); krrl ^= w0; krrr ^= w1; CAMELLIA_F(krrl, krrr, CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R, w0, w1, il, ir, t0, t1); krll ^= w0; krlr ^= w1; /* generate KA dependent subkeys */ ROLDQ(kll, klr, krl, krr, w0, w1, 15); /* k5 */ subL[6] = kll; subR[6] = klr; /* k6 */ subL[7] = krl; subR[7] = krr; ROLDQ(kll, klr, krl, krr, w0, w1, 30); /* k11 */ subL[14] = kll; subR[14] = klr; /* k12 */ subL[15] = krl; subR[15] = krr; /* rotation left shift 32bit */ /* kl5 */ subL[24] = klr; subR[24] = krl; /* kl6 */ subL[25] = krr; subR[25] = kll; /* rotation left shift 49 from k11,k12 -> k21,k22 */ ROLDQo32(kll, klr, krl, krr, w0, w1, 49); /* k21 */ subL[28] = kll; subR[28] = klr; /* k22 */ subL[29] = krl; subR[29] = krr; /* generate KB dependent subkeys */ /* k1 */ subL[2] = krll; subR[2] = krlr; /* k2 */ subL[3] = krrl; subR[3] = krrr; ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); /* k7 */ subL[10] = krll; subR[10] = krlr; /* k8 */ subL[11] = krrl; subR[11] = krrr; ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30); /* k15 */ subL[20] = krll; subR[20] = krlr; /* k16 */ subL[21] = krrl; subR[21] = krrr; ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51); /* kw3 */ subL[32] = krll; subR[32] = krlr; /* kw4 */ subL[33] = krrl; subR[33] = krrr; camellia_setup_tail(subkey, subL, subR, 32); } static void camellia_setup192(const unsigned char *key, u32 *subkey) { unsigned char kk[32]; u32 krll, krlr, krrl, krrr; memcpy(kk, key, 24); memcpy((unsigned char *)&krll, key+16, 4); memcpy((unsigned char *)&krlr, key+20, 4); krrl = ~krll; krrr = ~krlr; memcpy(kk+24, (unsigned char *)&krrl, 4); memcpy(kk+28, (unsigned char *)&krrr, 4); camellia_setup256(kk, subkey); } /* * Encrypt/decrypt */ #define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) ({ \ t0 = kll; \ t2 = krr; \ t0 &= ll; \ t2 |= rr; \ rl ^= t2; \ lr ^= rol32(t0, 1); \ t3 = krl; \ t1 = klr; \ t3 &= rl; \ t1 |= lr; \ ll ^= t1; \ rr ^= rol32(t3, 1); \ }) #define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) ({ \ yl ^= kl; \ yr ^= kr; \ ir = camellia_sp1110[(u8)xr]; \ il = camellia_sp1110[(u8)(xl >> 24)]; \ ir ^= camellia_sp0222[(u8)(xr >> 24)]; \ il ^= camellia_sp0222[(u8)(xl >> 16)]; \ ir ^= camellia_sp3033[(u8)(xr >> 16)]; \ il ^= camellia_sp3033[(u8)(xl >> 8)]; \ ir ^= camellia_sp4404[(u8)(xr >> 8)]; \ il ^= camellia_sp4404[(u8)xl]; \ ir ^= il; \ yl ^= ir; \ yr ^= ror32(il, 8) ^ ir; \ }) /* max = 24: 128bit encrypt, max = 32: 256bit encrypt */ static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max) { u32 il, ir, t0, t1; /* temporary variables */ /* pre whitening but absorb kw2 */ io[0] ^= SUBKEY_L(0); io[1] ^= SUBKEY_R(0); /* main iteration */ #define ROUNDS(i) ({ \ CAMELLIA_ROUNDSM(io[0], io[1], \ SUBKEY_L(i + 2), SUBKEY_R(i + 2), \ io[2], io[3], il, ir); \ CAMELLIA_ROUNDSM(io[2], io[3], \ SUBKEY_L(i + 3), SUBKEY_R(i + 3), \ io[0], io[1], il, ir); \ CAMELLIA_ROUNDSM(io[0], io[1], \ SUBKEY_L(i + 4), SUBKEY_R(i + 4), \ io[2], io[3], il, ir); \ CAMELLIA_ROUNDSM(io[2], io[3], \ SUBKEY_L(i + 5), SUBKEY_R(i + 5), \ io[0], io[1], il, ir); \ CAMELLIA_ROUNDSM(io[0], io[1], \ SUBKEY_L(i + 6), SUBKEY_R(i + 6), \ io[2], io[3], il, ir); \ CAMELLIA_ROUNDSM(io[2], io[3], \ SUBKEY_L(i + 7), SUBKEY_R(i + 7), \ io[0], io[1], il, ir); \ }) #define FLS(i) ({ \ CAMELLIA_FLS(io[0], io[1], io[2], io[3], \ SUBKEY_L(i + 0), SUBKEY_R(i + 0), \ SUBKEY_L(i + 1), SUBKEY_R(i + 1), \ t0, t1, il, ir); \ }) ROUNDS(0); FLS(8); ROUNDS(8); FLS(16); ROUNDS(16); if (max == 32) { FLS(24); ROUNDS(24); } #undef ROUNDS #undef FLS /* post whitening but kw4 */ io[2] ^= SUBKEY_L(max); io[3] ^= SUBKEY_R(max); /* NB: io[0],[1] should be swapped with [2],[3] by caller! */ } static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i) { u32 il, ir, t0, t1; /* temporary variables */ /* pre whitening but absorb kw2 */ io[0] ^= SUBKEY_L(i); io[1] ^= SUBKEY_R(i); /* main iteration */ #define ROUNDS(i) ({ \ CAMELLIA_ROUNDSM(io[0], io[1], \ SUBKEY_L(i + 7), SUBKEY_R(i + 7), \ io[2], io[3], il, ir); \ CAMELLIA_ROUNDSM(io[2], io[3], \ SUBKEY_L(i + 6), SUBKEY_R(i + 6), \ io[0], io[1], il, ir); \ CAMELLIA_ROUNDSM(io[0], io[1], \ SUBKEY_L(i + 5), SUBKEY_R(i + 5), \ io[2], io[3], il, ir); \ CAMELLIA_ROUNDSM(io[2], io[3], \ SUBKEY_L(i + 4), SUBKEY_R(i + 4), \ io[0], io[1], il, ir); \ CAMELLIA_ROUNDSM(io[0], io[1], \ SUBKEY_L(i + 3), SUBKEY_R(i + 3), \ io[2], io[3], il, ir); \ CAMELLIA_ROUNDSM(io[2], io[3], \ SUBKEY_L(i + 2), SUBKEY_R(i + 2), \ io[0], io[1], il, ir); \ }) #define FLS(i) ({ \ CAMELLIA_FLS(io[0], io[1], io[2], io[3], \ SUBKEY_L(i + 1), SUBKEY_R(i + 1), \ SUBKEY_L(i + 0), SUBKEY_R(i + 0), \ t0, t1, il, ir); \ }) if (i == 32) { ROUNDS(24); FLS(24); } ROUNDS(16); FLS(16); ROUNDS(8); FLS(8); ROUNDS(0); #undef ROUNDS #undef FLS /* post whitening but kw4 */ io[2] ^= SUBKEY_L(0); io[3] ^= SUBKEY_R(0); /* NB: 0,1 should be swapped with 2,3 by caller! */ } struct camellia_ctx { int key_length; u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)]; }; static int camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) { struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); const unsigned char *key = (const unsigned char *)in_key; if (key_len != 16 && key_len != 24 && key_len != 32) return -EINVAL; cctx->key_length = key_len; switch (key_len) { case 16: camellia_setup128(key, cctx->key_table); break; case 24: camellia_setup192(key, cctx->key_table); break; case 32: camellia_setup256(key, cctx->key_table); break; } return 0; } static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); unsigned int max; u32 tmp[4]; tmp[0] = get_unaligned_be32(in); tmp[1] = get_unaligned_be32(in + 4); tmp[2] = get_unaligned_be32(in + 8); tmp[3] = get_unaligned_be32(in + 12); if (cctx->key_length == 16) max = 24; else max = 32; /* for key lengths of 24 and 32 */ camellia_do_encrypt(cctx->key_table, tmp, max); /* do_encrypt returns 0,1 swapped with 2,3 */ put_unaligned_be32(tmp[2], out); put_unaligned_be32(tmp[3], out + 4); put_unaligned_be32(tmp[0], out + 8); put_unaligned_be32(tmp[1], out + 12); } static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm); unsigned int max; u32 tmp[4]; tmp[0] = get_unaligned_be32(in); tmp[1] = get_unaligned_be32(in + 4); tmp[2] = get_unaligned_be32(in + 8); tmp[3] = get_unaligned_be32(in + 12); if (cctx->key_length == 16) max = 24; else max = 32; /* for key lengths of 24 and 32 */ camellia_do_decrypt(cctx->key_table, tmp, max); /* do_decrypt returns 0,1 swapped with 2,3 */ put_unaligned_be32(tmp[2], out); put_unaligned_be32(tmp[3], out + 4); put_unaligned_be32(tmp[0], out + 8); put_unaligned_be32(tmp[1], out + 12); } static struct crypto_alg camellia_alg = { .cra_name = "camellia", .cra_driver_name = "camellia-generic", .cra_priority = 100, .cra_flags = CRYPTO_ALG_TYPE_CIPHER, .cra_blocksize = CAMELLIA_BLOCK_SIZE, .cra_ctxsize = sizeof(struct camellia_ctx), .cra_module = THIS_MODULE, .cra_u = { .cipher = { .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE, .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE, .cia_setkey = camellia_set_key, .cia_encrypt = camellia_encrypt, .cia_decrypt = camellia_decrypt } } }; static int __init camellia_init(void) { return crypto_register_alg(&camellia_alg); } static void __exit camellia_fini(void) { crypto_unregister_alg(&camellia_alg); } subsys_initcall(camellia_init); module_exit(camellia_fini); MODULE_DESCRIPTION("Camellia Cipher Algorithm"); MODULE_LICENSE("GPL"); MODULE_ALIAS_CRYPTO("camellia"); MODULE_ALIAS_CRYPTO("camellia-generic");
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