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0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * Cryptographic API.
0004  *
0005  * ARIA Cipher Algorithm.
0006  *
0007  * Documentation of ARIA can be found in RFC 5794.
0008  * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
0009  * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
0010  *
0011  * Information for ARIA
0012  *     http://210.104.33.10/ARIA/index-e.html (English)
0013  *     http://seed.kisa.or.kr/ (Korean)
0014  *
0015  * Public domain version is distributed above.
0016  */
0017 
0018 #ifndef _CRYPTO_ARIA_H
0019 #define _CRYPTO_ARIA_H
0020 
0021 #include <linux/module.h>
0022 #include <linux/init.h>
0023 #include <linux/types.h>
0024 #include <linux/errno.h>
0025 #include <linux/crypto.h>
0026 #include <asm/byteorder.h>
0027 
0028 #define ARIA_MIN_KEY_SIZE   16
0029 #define ARIA_MAX_KEY_SIZE   32
0030 #define ARIA_BLOCK_SIZE     16
0031 #define ARIA_MAX_RD_KEYS    17
0032 #define ARIA_RD_KEY_WORDS   (ARIA_BLOCK_SIZE / sizeof(u32))
0033 
0034 struct aria_ctx {
0035     int key_length;
0036     int rounds;
0037     u32 enc_key[ARIA_MAX_RD_KEYS][ARIA_RD_KEY_WORDS];
0038     u32 dec_key[ARIA_MAX_RD_KEYS][ARIA_RD_KEY_WORDS];
0039 };
0040 
0041 static const u32 key_rc[5][4] = {
0042     { 0x517cc1b7, 0x27220a94, 0xfe13abe8, 0xfa9a6ee0 },
0043     { 0x6db14acc, 0x9e21c820, 0xff28b1d5, 0xef5de2b0 },
0044     { 0xdb92371d, 0x2126e970, 0x03249775, 0x04e8c90e },
0045     { 0x517cc1b7, 0x27220a94, 0xfe13abe8, 0xfa9a6ee0 },
0046     { 0x6db14acc, 0x9e21c820, 0xff28b1d5, 0xef5de2b0 }
0047 };
0048 
0049 static const u32 s1[256] = {
0050     0x00636363, 0x007c7c7c, 0x00777777, 0x007b7b7b,
0051     0x00f2f2f2, 0x006b6b6b, 0x006f6f6f, 0x00c5c5c5,
0052     0x00303030, 0x00010101, 0x00676767, 0x002b2b2b,
0053     0x00fefefe, 0x00d7d7d7, 0x00ababab, 0x00767676,
0054     0x00cacaca, 0x00828282, 0x00c9c9c9, 0x007d7d7d,
0055     0x00fafafa, 0x00595959, 0x00474747, 0x00f0f0f0,
0056     0x00adadad, 0x00d4d4d4, 0x00a2a2a2, 0x00afafaf,
0057     0x009c9c9c, 0x00a4a4a4, 0x00727272, 0x00c0c0c0,
0058     0x00b7b7b7, 0x00fdfdfd, 0x00939393, 0x00262626,
0059     0x00363636, 0x003f3f3f, 0x00f7f7f7, 0x00cccccc,
0060     0x00343434, 0x00a5a5a5, 0x00e5e5e5, 0x00f1f1f1,
0061     0x00717171, 0x00d8d8d8, 0x00313131, 0x00151515,
0062     0x00040404, 0x00c7c7c7, 0x00232323, 0x00c3c3c3,
0063     0x00181818, 0x00969696, 0x00050505, 0x009a9a9a,
0064     0x00070707, 0x00121212, 0x00808080, 0x00e2e2e2,
0065     0x00ebebeb, 0x00272727, 0x00b2b2b2, 0x00757575,
0066     0x00090909, 0x00838383, 0x002c2c2c, 0x001a1a1a,
0067     0x001b1b1b, 0x006e6e6e, 0x005a5a5a, 0x00a0a0a0,
0068     0x00525252, 0x003b3b3b, 0x00d6d6d6, 0x00b3b3b3,
0069     0x00292929, 0x00e3e3e3, 0x002f2f2f, 0x00848484,
0070     0x00535353, 0x00d1d1d1, 0x00000000, 0x00ededed,
0071     0x00202020, 0x00fcfcfc, 0x00b1b1b1, 0x005b5b5b,
0072     0x006a6a6a, 0x00cbcbcb, 0x00bebebe, 0x00393939,
0073     0x004a4a4a, 0x004c4c4c, 0x00585858, 0x00cfcfcf,
0074     0x00d0d0d0, 0x00efefef, 0x00aaaaaa, 0x00fbfbfb,
0075     0x00434343, 0x004d4d4d, 0x00333333, 0x00858585,
0076     0x00454545, 0x00f9f9f9, 0x00020202, 0x007f7f7f,
0077     0x00505050, 0x003c3c3c, 0x009f9f9f, 0x00a8a8a8,
0078     0x00515151, 0x00a3a3a3, 0x00404040, 0x008f8f8f,
0079     0x00929292, 0x009d9d9d, 0x00383838, 0x00f5f5f5,
0080     0x00bcbcbc, 0x00b6b6b6, 0x00dadada, 0x00212121,
0081     0x00101010, 0x00ffffff, 0x00f3f3f3, 0x00d2d2d2,
0082     0x00cdcdcd, 0x000c0c0c, 0x00131313, 0x00ececec,
0083     0x005f5f5f, 0x00979797, 0x00444444, 0x00171717,
0084     0x00c4c4c4, 0x00a7a7a7, 0x007e7e7e, 0x003d3d3d,
0085     0x00646464, 0x005d5d5d, 0x00191919, 0x00737373,
0086     0x00606060, 0x00818181, 0x004f4f4f, 0x00dcdcdc,
0087     0x00222222, 0x002a2a2a, 0x00909090, 0x00888888,
0088     0x00464646, 0x00eeeeee, 0x00b8b8b8, 0x00141414,
0089     0x00dedede, 0x005e5e5e, 0x000b0b0b, 0x00dbdbdb,
0090     0x00e0e0e0, 0x00323232, 0x003a3a3a, 0x000a0a0a,
0091     0x00494949, 0x00060606, 0x00242424, 0x005c5c5c,
0092     0x00c2c2c2, 0x00d3d3d3, 0x00acacac, 0x00626262,
0093     0x00919191, 0x00959595, 0x00e4e4e4, 0x00797979,
0094     0x00e7e7e7, 0x00c8c8c8, 0x00373737, 0x006d6d6d,
0095     0x008d8d8d, 0x00d5d5d5, 0x004e4e4e, 0x00a9a9a9,
0096     0x006c6c6c, 0x00565656, 0x00f4f4f4, 0x00eaeaea,
0097     0x00656565, 0x007a7a7a, 0x00aeaeae, 0x00080808,
0098     0x00bababa, 0x00787878, 0x00252525, 0x002e2e2e,
0099     0x001c1c1c, 0x00a6a6a6, 0x00b4b4b4, 0x00c6c6c6,
0100     0x00e8e8e8, 0x00dddddd, 0x00747474, 0x001f1f1f,
0101     0x004b4b4b, 0x00bdbdbd, 0x008b8b8b, 0x008a8a8a,
0102     0x00707070, 0x003e3e3e, 0x00b5b5b5, 0x00666666,
0103     0x00484848, 0x00030303, 0x00f6f6f6, 0x000e0e0e,
0104     0x00616161, 0x00353535, 0x00575757, 0x00b9b9b9,
0105     0x00868686, 0x00c1c1c1, 0x001d1d1d, 0x009e9e9e,
0106     0x00e1e1e1, 0x00f8f8f8, 0x00989898, 0x00111111,
0107     0x00696969, 0x00d9d9d9, 0x008e8e8e, 0x00949494,
0108     0x009b9b9b, 0x001e1e1e, 0x00878787, 0x00e9e9e9,
0109     0x00cecece, 0x00555555, 0x00282828, 0x00dfdfdf,
0110     0x008c8c8c, 0x00a1a1a1, 0x00898989, 0x000d0d0d,
0111     0x00bfbfbf, 0x00e6e6e6, 0x00424242, 0x00686868,
0112     0x00414141, 0x00999999, 0x002d2d2d, 0x000f0f0f,
0113     0x00b0b0b0, 0x00545454, 0x00bbbbbb, 0x00161616
0114 };
0115 
0116 static const u32 s2[256] = {
0117     0xe200e2e2, 0x4e004e4e, 0x54005454, 0xfc00fcfc,
0118     0x94009494, 0xc200c2c2, 0x4a004a4a, 0xcc00cccc,
0119     0x62006262, 0x0d000d0d, 0x6a006a6a, 0x46004646,
0120     0x3c003c3c, 0x4d004d4d, 0x8b008b8b, 0xd100d1d1,
0121     0x5e005e5e, 0xfa00fafa, 0x64006464, 0xcb00cbcb,
0122     0xb400b4b4, 0x97009797, 0xbe00bebe, 0x2b002b2b,
0123     0xbc00bcbc, 0x77007777, 0x2e002e2e, 0x03000303,
0124     0xd300d3d3, 0x19001919, 0x59005959, 0xc100c1c1,
0125     0x1d001d1d, 0x06000606, 0x41004141, 0x6b006b6b,
0126     0x55005555, 0xf000f0f0, 0x99009999, 0x69006969,
0127     0xea00eaea, 0x9c009c9c, 0x18001818, 0xae00aeae,
0128     0x63006363, 0xdf00dfdf, 0xe700e7e7, 0xbb00bbbb,
0129     0x00000000, 0x73007373, 0x66006666, 0xfb00fbfb,
0130     0x96009696, 0x4c004c4c, 0x85008585, 0xe400e4e4,
0131     0x3a003a3a, 0x09000909, 0x45004545, 0xaa00aaaa,
0132     0x0f000f0f, 0xee00eeee, 0x10001010, 0xeb00ebeb,
0133     0x2d002d2d, 0x7f007f7f, 0xf400f4f4, 0x29002929,
0134     0xac00acac, 0xcf00cfcf, 0xad00adad, 0x91009191,
0135     0x8d008d8d, 0x78007878, 0xc800c8c8, 0x95009595,
0136     0xf900f9f9, 0x2f002f2f, 0xce00cece, 0xcd00cdcd,
0137     0x08000808, 0x7a007a7a, 0x88008888, 0x38003838,
0138     0x5c005c5c, 0x83008383, 0x2a002a2a, 0x28002828,
0139     0x47004747, 0xdb00dbdb, 0xb800b8b8, 0xc700c7c7,
0140     0x93009393, 0xa400a4a4, 0x12001212, 0x53005353,
0141     0xff00ffff, 0x87008787, 0x0e000e0e, 0x31003131,
0142     0x36003636, 0x21002121, 0x58005858, 0x48004848,
0143     0x01000101, 0x8e008e8e, 0x37003737, 0x74007474,
0144     0x32003232, 0xca00caca, 0xe900e9e9, 0xb100b1b1,
0145     0xb700b7b7, 0xab00abab, 0x0c000c0c, 0xd700d7d7,
0146     0xc400c4c4, 0x56005656, 0x42004242, 0x26002626,
0147     0x07000707, 0x98009898, 0x60006060, 0xd900d9d9,
0148     0xb600b6b6, 0xb900b9b9, 0x11001111, 0x40004040,
0149     0xec00ecec, 0x20002020, 0x8c008c8c, 0xbd00bdbd,
0150     0xa000a0a0, 0xc900c9c9, 0x84008484, 0x04000404,
0151     0x49004949, 0x23002323, 0xf100f1f1, 0x4f004f4f,
0152     0x50005050, 0x1f001f1f, 0x13001313, 0xdc00dcdc,
0153     0xd800d8d8, 0xc000c0c0, 0x9e009e9e, 0x57005757,
0154     0xe300e3e3, 0xc300c3c3, 0x7b007b7b, 0x65006565,
0155     0x3b003b3b, 0x02000202, 0x8f008f8f, 0x3e003e3e,
0156     0xe800e8e8, 0x25002525, 0x92009292, 0xe500e5e5,
0157     0x15001515, 0xdd00dddd, 0xfd00fdfd, 0x17001717,
0158     0xa900a9a9, 0xbf00bfbf, 0xd400d4d4, 0x9a009a9a,
0159     0x7e007e7e, 0xc500c5c5, 0x39003939, 0x67006767,
0160     0xfe00fefe, 0x76007676, 0x9d009d9d, 0x43004343,
0161     0xa700a7a7, 0xe100e1e1, 0xd000d0d0, 0xf500f5f5,
0162     0x68006868, 0xf200f2f2, 0x1b001b1b, 0x34003434,
0163     0x70007070, 0x05000505, 0xa300a3a3, 0x8a008a8a,
0164     0xd500d5d5, 0x79007979, 0x86008686, 0xa800a8a8,
0165     0x30003030, 0xc600c6c6, 0x51005151, 0x4b004b4b,
0166     0x1e001e1e, 0xa600a6a6, 0x27002727, 0xf600f6f6,
0167     0x35003535, 0xd200d2d2, 0x6e006e6e, 0x24002424,
0168     0x16001616, 0x82008282, 0x5f005f5f, 0xda00dada,
0169     0xe600e6e6, 0x75007575, 0xa200a2a2, 0xef00efef,
0170     0x2c002c2c, 0xb200b2b2, 0x1c001c1c, 0x9f009f9f,
0171     0x5d005d5d, 0x6f006f6f, 0x80008080, 0x0a000a0a,
0172     0x72007272, 0x44004444, 0x9b009b9b, 0x6c006c6c,
0173     0x90009090, 0x0b000b0b, 0x5b005b5b, 0x33003333,
0174     0x7d007d7d, 0x5a005a5a, 0x52005252, 0xf300f3f3,
0175     0x61006161, 0xa100a1a1, 0xf700f7f7, 0xb000b0b0,
0176     0xd600d6d6, 0x3f003f3f, 0x7c007c7c, 0x6d006d6d,
0177     0xed00eded, 0x14001414, 0xe000e0e0, 0xa500a5a5,
0178     0x3d003d3d, 0x22002222, 0xb300b3b3, 0xf800f8f8,
0179     0x89008989, 0xde00dede, 0x71007171, 0x1a001a1a,
0180     0xaf00afaf, 0xba00baba, 0xb500b5b5, 0x81008181
0181 };
0182 
0183 static const u32 x1[256] = {
0184     0x52520052, 0x09090009, 0x6a6a006a, 0xd5d500d5,
0185     0x30300030, 0x36360036, 0xa5a500a5, 0x38380038,
0186     0xbfbf00bf, 0x40400040, 0xa3a300a3, 0x9e9e009e,
0187     0x81810081, 0xf3f300f3, 0xd7d700d7, 0xfbfb00fb,
0188     0x7c7c007c, 0xe3e300e3, 0x39390039, 0x82820082,
0189     0x9b9b009b, 0x2f2f002f, 0xffff00ff, 0x87870087,
0190     0x34340034, 0x8e8e008e, 0x43430043, 0x44440044,
0191     0xc4c400c4, 0xdede00de, 0xe9e900e9, 0xcbcb00cb,
0192     0x54540054, 0x7b7b007b, 0x94940094, 0x32320032,
0193     0xa6a600a6, 0xc2c200c2, 0x23230023, 0x3d3d003d,
0194     0xeeee00ee, 0x4c4c004c, 0x95950095, 0x0b0b000b,
0195     0x42420042, 0xfafa00fa, 0xc3c300c3, 0x4e4e004e,
0196     0x08080008, 0x2e2e002e, 0xa1a100a1, 0x66660066,
0197     0x28280028, 0xd9d900d9, 0x24240024, 0xb2b200b2,
0198     0x76760076, 0x5b5b005b, 0xa2a200a2, 0x49490049,
0199     0x6d6d006d, 0x8b8b008b, 0xd1d100d1, 0x25250025,
0200     0x72720072, 0xf8f800f8, 0xf6f600f6, 0x64640064,
0201     0x86860086, 0x68680068, 0x98980098, 0x16160016,
0202     0xd4d400d4, 0xa4a400a4, 0x5c5c005c, 0xcccc00cc,
0203     0x5d5d005d, 0x65650065, 0xb6b600b6, 0x92920092,
0204     0x6c6c006c, 0x70700070, 0x48480048, 0x50500050,
0205     0xfdfd00fd, 0xeded00ed, 0xb9b900b9, 0xdada00da,
0206     0x5e5e005e, 0x15150015, 0x46460046, 0x57570057,
0207     0xa7a700a7, 0x8d8d008d, 0x9d9d009d, 0x84840084,
0208     0x90900090, 0xd8d800d8, 0xabab00ab, 0x00000000,
0209     0x8c8c008c, 0xbcbc00bc, 0xd3d300d3, 0x0a0a000a,
0210     0xf7f700f7, 0xe4e400e4, 0x58580058, 0x05050005,
0211     0xb8b800b8, 0xb3b300b3, 0x45450045, 0x06060006,
0212     0xd0d000d0, 0x2c2c002c, 0x1e1e001e, 0x8f8f008f,
0213     0xcaca00ca, 0x3f3f003f, 0x0f0f000f, 0x02020002,
0214     0xc1c100c1, 0xafaf00af, 0xbdbd00bd, 0x03030003,
0215     0x01010001, 0x13130013, 0x8a8a008a, 0x6b6b006b,
0216     0x3a3a003a, 0x91910091, 0x11110011, 0x41410041,
0217     0x4f4f004f, 0x67670067, 0xdcdc00dc, 0xeaea00ea,
0218     0x97970097, 0xf2f200f2, 0xcfcf00cf, 0xcece00ce,
0219     0xf0f000f0, 0xb4b400b4, 0xe6e600e6, 0x73730073,
0220     0x96960096, 0xacac00ac, 0x74740074, 0x22220022,
0221     0xe7e700e7, 0xadad00ad, 0x35350035, 0x85850085,
0222     0xe2e200e2, 0xf9f900f9, 0x37370037, 0xe8e800e8,
0223     0x1c1c001c, 0x75750075, 0xdfdf00df, 0x6e6e006e,
0224     0x47470047, 0xf1f100f1, 0x1a1a001a, 0x71710071,
0225     0x1d1d001d, 0x29290029, 0xc5c500c5, 0x89890089,
0226     0x6f6f006f, 0xb7b700b7, 0x62620062, 0x0e0e000e,
0227     0xaaaa00aa, 0x18180018, 0xbebe00be, 0x1b1b001b,
0228     0xfcfc00fc, 0x56560056, 0x3e3e003e, 0x4b4b004b,
0229     0xc6c600c6, 0xd2d200d2, 0x79790079, 0x20200020,
0230     0x9a9a009a, 0xdbdb00db, 0xc0c000c0, 0xfefe00fe,
0231     0x78780078, 0xcdcd00cd, 0x5a5a005a, 0xf4f400f4,
0232     0x1f1f001f, 0xdddd00dd, 0xa8a800a8, 0x33330033,
0233     0x88880088, 0x07070007, 0xc7c700c7, 0x31310031,
0234     0xb1b100b1, 0x12120012, 0x10100010, 0x59590059,
0235     0x27270027, 0x80800080, 0xecec00ec, 0x5f5f005f,
0236     0x60600060, 0x51510051, 0x7f7f007f, 0xa9a900a9,
0237     0x19190019, 0xb5b500b5, 0x4a4a004a, 0x0d0d000d,
0238     0x2d2d002d, 0xe5e500e5, 0x7a7a007a, 0x9f9f009f,
0239     0x93930093, 0xc9c900c9, 0x9c9c009c, 0xefef00ef,
0240     0xa0a000a0, 0xe0e000e0, 0x3b3b003b, 0x4d4d004d,
0241     0xaeae00ae, 0x2a2a002a, 0xf5f500f5, 0xb0b000b0,
0242     0xc8c800c8, 0xebeb00eb, 0xbbbb00bb, 0x3c3c003c,
0243     0x83830083, 0x53530053, 0x99990099, 0x61610061,
0244     0x17170017, 0x2b2b002b, 0x04040004, 0x7e7e007e,
0245     0xbaba00ba, 0x77770077, 0xd6d600d6, 0x26260026,
0246     0xe1e100e1, 0x69690069, 0x14140014, 0x63630063,
0247     0x55550055, 0x21210021, 0x0c0c000c, 0x7d7d007d
0248 };
0249 
0250 static const u32 x2[256] = {
0251     0x30303000, 0x68686800, 0x99999900, 0x1b1b1b00,
0252     0x87878700, 0xb9b9b900, 0x21212100, 0x78787800,
0253     0x50505000, 0x39393900, 0xdbdbdb00, 0xe1e1e100,
0254     0x72727200, 0x09090900, 0x62626200, 0x3c3c3c00,
0255     0x3e3e3e00, 0x7e7e7e00, 0x5e5e5e00, 0x8e8e8e00,
0256     0xf1f1f100, 0xa0a0a000, 0xcccccc00, 0xa3a3a300,
0257     0x2a2a2a00, 0x1d1d1d00, 0xfbfbfb00, 0xb6b6b600,
0258     0xd6d6d600, 0x20202000, 0xc4c4c400, 0x8d8d8d00,
0259     0x81818100, 0x65656500, 0xf5f5f500, 0x89898900,
0260     0xcbcbcb00, 0x9d9d9d00, 0x77777700, 0xc6c6c600,
0261     0x57575700, 0x43434300, 0x56565600, 0x17171700,
0262     0xd4d4d400, 0x40404000, 0x1a1a1a00, 0x4d4d4d00,
0263     0xc0c0c000, 0x63636300, 0x6c6c6c00, 0xe3e3e300,
0264     0xb7b7b700, 0xc8c8c800, 0x64646400, 0x6a6a6a00,
0265     0x53535300, 0xaaaaaa00, 0x38383800, 0x98989800,
0266     0x0c0c0c00, 0xf4f4f400, 0x9b9b9b00, 0xededed00,
0267     0x7f7f7f00, 0x22222200, 0x76767600, 0xafafaf00,
0268     0xdddddd00, 0x3a3a3a00, 0x0b0b0b00, 0x58585800,
0269     0x67676700, 0x88888800, 0x06060600, 0xc3c3c300,
0270     0x35353500, 0x0d0d0d00, 0x01010100, 0x8b8b8b00,
0271     0x8c8c8c00, 0xc2c2c200, 0xe6e6e600, 0x5f5f5f00,
0272     0x02020200, 0x24242400, 0x75757500, 0x93939300,
0273     0x66666600, 0x1e1e1e00, 0xe5e5e500, 0xe2e2e200,
0274     0x54545400, 0xd8d8d800, 0x10101000, 0xcecece00,
0275     0x7a7a7a00, 0xe8e8e800, 0x08080800, 0x2c2c2c00,
0276     0x12121200, 0x97979700, 0x32323200, 0xababab00,
0277     0xb4b4b400, 0x27272700, 0x0a0a0a00, 0x23232300,
0278     0xdfdfdf00, 0xefefef00, 0xcacaca00, 0xd9d9d900,
0279     0xb8b8b800, 0xfafafa00, 0xdcdcdc00, 0x31313100,
0280     0x6b6b6b00, 0xd1d1d100, 0xadadad00, 0x19191900,
0281     0x49494900, 0xbdbdbd00, 0x51515100, 0x96969600,
0282     0xeeeeee00, 0xe4e4e400, 0xa8a8a800, 0x41414100,
0283     0xdadada00, 0xffffff00, 0xcdcdcd00, 0x55555500,
0284     0x86868600, 0x36363600, 0xbebebe00, 0x61616100,
0285     0x52525200, 0xf8f8f800, 0xbbbbbb00, 0x0e0e0e00,
0286     0x82828200, 0x48484800, 0x69696900, 0x9a9a9a00,
0287     0xe0e0e000, 0x47474700, 0x9e9e9e00, 0x5c5c5c00,
0288     0x04040400, 0x4b4b4b00, 0x34343400, 0x15151500,
0289     0x79797900, 0x26262600, 0xa7a7a700, 0xdedede00,
0290     0x29292900, 0xaeaeae00, 0x92929200, 0xd7d7d700,
0291     0x84848400, 0xe9e9e900, 0xd2d2d200, 0xbababa00,
0292     0x5d5d5d00, 0xf3f3f300, 0xc5c5c500, 0xb0b0b000,
0293     0xbfbfbf00, 0xa4a4a400, 0x3b3b3b00, 0x71717100,
0294     0x44444400, 0x46464600, 0x2b2b2b00, 0xfcfcfc00,
0295     0xebebeb00, 0x6f6f6f00, 0xd5d5d500, 0xf6f6f600,
0296     0x14141400, 0xfefefe00, 0x7c7c7c00, 0x70707000,
0297     0x5a5a5a00, 0x7d7d7d00, 0xfdfdfd00, 0x2f2f2f00,
0298     0x18181800, 0x83838300, 0x16161600, 0xa5a5a500,
0299     0x91919100, 0x1f1f1f00, 0x05050500, 0x95959500,
0300     0x74747400, 0xa9a9a900, 0xc1c1c100, 0x5b5b5b00,
0301     0x4a4a4a00, 0x85858500, 0x6d6d6d00, 0x13131300,
0302     0x07070700, 0x4f4f4f00, 0x4e4e4e00, 0x45454500,
0303     0xb2b2b200, 0x0f0f0f00, 0xc9c9c900, 0x1c1c1c00,
0304     0xa6a6a600, 0xbcbcbc00, 0xececec00, 0x73737300,
0305     0x90909000, 0x7b7b7b00, 0xcfcfcf00, 0x59595900,
0306     0x8f8f8f00, 0xa1a1a100, 0xf9f9f900, 0x2d2d2d00,
0307     0xf2f2f200, 0xb1b1b100, 0x00000000, 0x94949400,
0308     0x37373700, 0x9f9f9f00, 0xd0d0d000, 0x2e2e2e00,
0309     0x9c9c9c00, 0x6e6e6e00, 0x28282800, 0x3f3f3f00,
0310     0x80808000, 0xf0f0f000, 0x3d3d3d00, 0xd3d3d300,
0311     0x25252500, 0x8a8a8a00, 0xb5b5b500, 0xe7e7e700,
0312     0x42424200, 0xb3b3b300, 0xc7c7c700, 0xeaeaea00,
0313     0xf7f7f700, 0x4c4c4c00, 0x11111100, 0x33333300,
0314     0x03030300, 0xa2a2a200, 0xacacac00, 0x60606000
0315 };
0316 
0317 static inline u32 rotl32(u32 v, u32 r)
0318 {
0319     return ((v << r) | (v >> (32 - r)));
0320 }
0321 
0322 static inline u32 rotr32(u32 v, u32 r)
0323 {
0324     return ((v >> r) | (v << (32 - r)));
0325 }
0326 
0327 static inline u32 bswap32(u32 v)
0328 {
0329     return ((v << 24) ^
0330         (v >> 24) ^
0331         ((v & 0x0000ff00) << 8) ^
0332         ((v & 0x00ff0000) >> 8));
0333 }
0334 
0335 static inline u8 get_u8(u32 x, u32 y)
0336 {
0337     return (x >> ((3 - y) * 8));
0338 }
0339 
0340 static inline u32 make_u32(u8 v0, u8 v1, u8 v2, u8 v3)
0341 {
0342     return ((u32)v0 << 24) | ((u32)v1 << 16) | ((u32)v2 <<  8) | ((u32)v3);
0343 }
0344 
0345 static inline u32 aria_m(u32 t0)
0346 {
0347     return rotr32(t0, 8) ^ rotr32(t0 ^ rotr32(t0, 8), 16);
0348 }
0349 
0350 /* S-Box Layer 1 + M */
0351 static inline void aria_sbox_layer1_with_pre_diff(u32 *t0, u32 *t1, u32 *t2,
0352                           u32 *t3)
0353 {
0354     *t0 = s1[get_u8(*t0, 0)] ^
0355           s2[get_u8(*t0, 1)] ^
0356           x1[get_u8(*t0, 2)] ^
0357           x2[get_u8(*t0, 3)];
0358     *t1 = s1[get_u8(*t1, 0)] ^
0359           s2[get_u8(*t1, 1)] ^
0360           x1[get_u8(*t1, 2)] ^
0361           x2[get_u8(*t1, 3)];
0362     *t2 = s1[get_u8(*t2, 0)] ^
0363           s2[get_u8(*t2, 1)] ^
0364           x1[get_u8(*t2, 2)] ^
0365           x2[get_u8(*t2, 3)];
0366     *t3 = s1[get_u8(*t3, 0)] ^
0367           s2[get_u8(*t3, 1)] ^
0368           x1[get_u8(*t3, 2)] ^
0369           x2[get_u8(*t3, 3)];
0370 }
0371 
0372 /* S-Box Layer 2 + M */
0373 static inline void aria_sbox_layer2_with_pre_diff(u32 *t0, u32 *t1, u32 *t2,
0374                           u32 *t3)
0375 {
0376     *t0 = x1[get_u8(*t0, 0)] ^
0377           x2[get_u8(*t0, 1)] ^
0378           s1[get_u8(*t0, 2)] ^
0379           s2[get_u8(*t0, 3)];
0380     *t1 = x1[get_u8(*t1, 0)] ^
0381           x2[get_u8(*t1, 1)] ^
0382           s1[get_u8(*t1, 2)] ^
0383           s2[get_u8(*t1, 3)];
0384     *t2 = x1[get_u8(*t2, 0)] ^
0385           x2[get_u8(*t2, 1)] ^
0386           s1[get_u8(*t2, 2)] ^
0387           s2[get_u8(*t2, 3)];
0388     *t3 = x1[get_u8(*t3, 0)] ^
0389           x2[get_u8(*t3, 1)] ^
0390           s1[get_u8(*t3, 2)] ^
0391           s2[get_u8(*t3, 3)];
0392 }
0393 
0394 /* Word-level diffusion */
0395 static inline void aria_diff_word(u32 *t0, u32 *t1, u32 *t2, u32 *t3)
0396 {
0397     *t1 ^= *t2;
0398     *t2 ^= *t3;
0399     *t0 ^= *t1;
0400 
0401     *t3 ^= *t1;
0402     *t2 ^= *t0;
0403     *t1 ^= *t2;
0404 }
0405 
0406 /* Byte-level diffusion */
0407 static inline void aria_diff_byte(u32 *t1, u32 *t2, u32 *t3)
0408 {
0409     *t1 = ((*t1 << 8) & 0xff00ff00) ^ ((*t1 >> 8) & 0x00ff00ff);
0410     *t2 = rotr32(*t2, 16);
0411     *t3 = bswap32(*t3);
0412 }
0413 
0414 /* Key XOR Layer */
0415 static inline void aria_add_round_key(u32 *rk, u32 *t0, u32 *t1, u32 *t2,
0416                       u32 *t3)
0417 {
0418     *t0 ^= rk[0];
0419     *t1 ^= rk[1];
0420     *t2 ^= rk[2];
0421     *t3 ^= rk[3];
0422 }
0423 /* Odd round Substitution & Diffusion */
0424 static inline void aria_subst_diff_odd(u32 *t0, u32 *t1, u32 *t2, u32 *t3)
0425 {
0426     aria_sbox_layer1_with_pre_diff(t0, t1, t2, t3);
0427     aria_diff_word(t0, t1, t2, t3);
0428     aria_diff_byte(t1, t2, t3);
0429     aria_diff_word(t0, t1, t2, t3);
0430 }
0431 
0432 /* Even round Substitution & Diffusion */
0433 static inline void aria_subst_diff_even(u32 *t0, u32 *t1, u32 *t2, u32 *t3)
0434 {
0435     aria_sbox_layer2_with_pre_diff(t0, t1, t2, t3);
0436     aria_diff_word(t0, t1, t2, t3);
0437     aria_diff_byte(t3, t0, t1);
0438     aria_diff_word(t0, t1, t2, t3);
0439 }
0440 
0441 /* Q, R Macro expanded ARIA GSRK */
0442 static inline void aria_gsrk(u32 *rk, u32 *x, u32 *y, u32 n)
0443 {
0444     int q = 4 - (n / 32);
0445     int r = n % 32;
0446 
0447     rk[0] = (x[0]) ^
0448         ((y[q % 4]) >> r) ^
0449         ((y[(q + 3) % 4]) << (32 - r));
0450     rk[1] = (x[1]) ^
0451         ((y[(q + 1) % 4]) >> r) ^
0452         ((y[q % 4]) << (32 - r));
0453     rk[2] = (x[2]) ^
0454         ((y[(q + 2) % 4]) >> r) ^
0455         ((y[(q + 1) % 4]) << (32 - r));
0456     rk[3] = (x[3]) ^
0457         ((y[(q + 3) % 4]) >> r) ^
0458         ((y[(q + 2) % 4]) << (32 - r));
0459 }
0460 
0461 #endif
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