openssl/crypto/aria/aria.c

/*
 * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright (c) 2017, Oracle and/or its affiliates.  All rights reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/*
 * Copyright (C) 2017 National Security Research Institute. All Rights Reserved.
 *
 * Information for ARIA
 *     http://210.104.33.10/ARIA/index-e.html (English)
 *     http://seed.kisa.or.kr/ (Korean)
 *
 * Public domain version is distributed above.
 */

#include <openssl/e_os2.h>
#include "internal/aria.h"

#include <assert.h>
#include <string.h>

#ifndef OPENSSL_SMALL_FOOTPRINT

/* Begin macro */

/* rotation */
#define rotl32(v, r) (((uint32_t)(v) << (r)) | ((uint32_t)(v) >> (32 - r)))
#define rotr32(v, r) (((uint32_t)(v) >> (r)) | ((uint32_t)(v) << (32 - r)))

#define bswap32(v)                                          \
    (((v) << 24) ^ ((v) >> 24) ^                            \
    (((v) & 0x0000ff00) << 8) ^ (((v) & 0x00ff0000) >> 8))

#define GET_U8_BE(X, Y) ((uint8_t)((X) >> ((3 - Y) * 8)))
#define GET_U32_BE(X, Y) (                                  \
    ((uint32_t)((const uint8_t *)(X))[Y * 4    ] << 24) ^   \
    ((uint32_t)((const uint8_t *)(X))[Y * 4 + 1] << 16) ^   \
    ((uint32_t)((const uint8_t *)(X))[Y * 4 + 2] <<  8) ^   \
    ((uint32_t)((const uint8_t *)(X))[Y * 4 + 3]      )     )

#define PUT_U32_BE(DEST, IDX, VAL)                              \
    do {                                                        \
        ((uint8_t *)(DEST))[IDX * 4    ] = GET_U8_BE(VAL, 0);   \
        ((uint8_t *)(DEST))[IDX * 4 + 1] = GET_U8_BE(VAL, 1);   \
        ((uint8_t *)(DEST))[IDX * 4 + 2] = GET_U8_BE(VAL, 2);   \
        ((uint8_t *)(DEST))[IDX * 4 + 3] = GET_U8_BE(VAL, 3);   \
    } while(0)

#define MAKE_U32(V0, V1, V2, V3) (      \
    ((uint32_t)((uint8_t)(V0)) << 24) | \
    ((uint32_t)((uint8_t)(V1)) << 16) | \
    ((uint32_t)((uint8_t)(V2)) <<  8) | \
    ((uint32_t)((uint8_t)(V3))      )   )

/* End Macro*/

/* Key Constant
 * 128bit : 0, 1,    2
 * 192bit : 1, 2,    3(0)
 * 256bit : 2, 3(0), 4(1)
 */
static const uint32_t Key_RC[5][4] = {
    { 0x517cc1b7, 0x27220a94, 0xfe13abe8, 0xfa9a6ee0 },
    { 0x6db14acc, 0x9e21c820, 0xff28b1d5, 0xef5de2b0 },
    { 0xdb92371d, 0x2126e970, 0x03249775, 0x04e8c90e },
    { 0x517cc1b7, 0x27220a94, 0xfe13abe8, 0xfa9a6ee0 },
    { 0x6db14acc, 0x9e21c820, 0xff28b1d5, 0xef5de2b0 }
};

/* 32bit expanded s-box */
static const uint32_t S1[256] = {
    0x00636363, 0x007c7c7c, 0x00777777, 0x007b7b7b,
    0x00f2f2f2, 0x006b6b6b, 0x006f6f6f, 0x00c5c5c5,
    0x00303030, 0x00010101, 0x00676767, 0x002b2b2b,
    0x00fefefe, 0x00d7d7d7, 0x00ababab, 0x00767676,
    0x00cacaca, 0x00828282, 0x00c9c9c9, 0x007d7d7d,
    0x00fafafa, 0x00595959, 0x00474747, 0x00f0f0f0,
    0x00adadad, 0x00d4d4d4, 0x00a2a2a2, 0x00afafaf,
    0x009c9c9c, 0x00a4a4a4, 0x00727272, 0x00c0c0c0,
    0x00b7b7b7, 0x00fdfdfd, 0x00939393, 0x00262626,
    0x00363636, 0x003f3f3f, 0x00f7f7f7, 0x00cccccc,
    0x00343434, 0x00a5a5a5, 0x00e5e5e5, 0x00f1f1f1,
    0x00717171, 0x00d8d8d8, 0x00313131, 0x00151515,
    0x00040404, 0x00c7c7c7, 0x00232323, 0x00c3c3c3,
    0x00181818, 0x00969696, 0x00050505, 0x009a9a9a,
    0x00070707, 0x00121212, 0x00808080, 0x00e2e2e2,
    0x00ebebeb, 0x00272727, 0x00b2b2b2, 0x00757575,
    0x00090909, 0x00838383, 0x002c2c2c, 0x001a1a1a,
    0x001b1b1b, 0x006e6e6e, 0x005a5a5a, 0x00a0a0a0,
    0x00525252, 0x003b3b3b, 0x00d6d6d6, 0x00b3b3b3,
    0x00292929, 0x00e3e3e3, 0x002f2f2f, 0x00848484,
    0x00535353, 0x00d1d1d1, 0x00000000, 0x00ededed,
    0x00202020, 0x00fcfcfc, 0x00b1b1b1, 0x005b5b5b,
    0x006a6a6a, 0x00cbcbcb, 0x00bebebe, 0x00393939,
    0x004a4a4a, 0x004c4c4c, 0x00585858, 0x00cfcfcf,
    0x00d0d0d0, 0x00efefef, 0x00aaaaaa, 0x00fbfbfb,
    0x00434343, 0x004d4d4d, 0x00333333, 0x00858585,
    0x00454545, 0x00f9f9f9, 0x00020202, 0x007f7f7f,
    0x00505050, 0x003c3c3c, 0x009f9f9f, 0x00a8a8a8,
    0x00515151, 0x00a3a3a3, 0x00404040, 0x008f8f8f,
    0x00929292, 0x009d9d9d, 0x00383838, 0x00f5f5f5,
    0x00bcbcbc, 0x00b6b6b6, 0x00dadada, 0x00212121,
    0x00101010, 0x00ffffff, 0x00f3f3f3, 0x00d2d2d2,
    0x00cdcdcd, 0x000c0c0c, 0x00131313, 0x00ececec,
    0x005f5f5f, 0x00979797, 0x00444444, 0x00171717,
    0x00c4c4c4, 0x00a7a7a7, 0x007e7e7e, 0x003d3d3d,
    0x00646464, 0x005d5d5d, 0x00191919, 0x00737373,
    0x00606060, 0x00818181, 0x004f4f4f, 0x00dcdcdc,
    0x00222222, 0x002a2a2a, 0x00909090, 0x00888888,
    0x00464646, 0x00eeeeee, 0x00b8b8b8, 0x00141414,
    0x00dedede, 0x005e5e5e, 0x000b0b0b, 0x00dbdbdb,
    0x00e0e0e0, 0x00323232, 0x003a3a3a, 0x000a0a0a,
    0x00494949, 0x00060606, 0x00242424, 0x005c5c5c,
    0x00c2c2c2, 0x00d3d3d3, 0x00acacac, 0x00626262,
    0x00919191, 0x00959595, 0x00e4e4e4, 0x00797979,
    0x00e7e7e7, 0x00c8c8c8, 0x00373737, 0x006d6d6d,
    0x008d8d8d, 0x00d5d5d5, 0x004e4e4e, 0x00a9a9a9,
    0x006c6c6c, 0x00565656, 0x00f4f4f4, 0x00eaeaea,
    0x00656565, 0x007a7a7a, 0x00aeaeae, 0x00080808,
    0x00bababa, 0x00787878, 0x00252525, 0x002e2e2e,
    0x001c1c1c, 0x00a6a6a6, 0x00b4b4b4, 0x00c6c6c6,
    0x00e8e8e8, 0x00dddddd, 0x00747474, 0x001f1f1f,
    0x004b4b4b, 0x00bdbdbd, 0x008b8b8b, 0x008a8a8a,
    0x00707070, 0x003e3e3e, 0x00b5b5b5, 0x00666666,
    0x00484848, 0x00030303, 0x00f6f6f6, 0x000e0e0e,
    0x00616161, 0x00353535, 0x00575757, 0x00b9b9b9,
    0x00868686, 0x00c1c1c1, 0x001d1d1d, 0x009e9e9e,
    0x00e1e1e1, 0x00f8f8f8, 0x00989898, 0x00111111,
    0x00696969, 0x00d9d9d9, 0x008e8e8e, 0x00949494,
    0x009b9b9b, 0x001e1e1e, 0x00878787, 0x00e9e9e9,
    0x00cecece, 0x00555555, 0x00282828, 0x00dfdfdf,
    0x008c8c8c, 0x00a1a1a1, 0x00898989, 0x000d0d0d,
    0x00bfbfbf, 0x00e6e6e6, 0x00424242, 0x00686868,
    0x00414141, 0x00999999, 0x002d2d2d, 0x000f0f0f,
    0x00b0b0b0, 0x00545454, 0x00bbbbbb, 0x00161616
};

static const uint32_t S2[256] = {
    0xe200e2e2, 0x4e004e4e, 0x54005454, 0xfc00fcfc,
    0x94009494, 0xc200c2c2, 0x4a004a4a, 0xcc00cccc,
    0x62006262, 0x0d000d0d, 0x6a006a6a, 0x46004646,
    0x3c003c3c, 0x4d004d4d, 0x8b008b8b, 0xd100d1d1,
    0x5e005e5e, 0xfa00fafa, 0x64006464, 0xcb00cbcb,
    0xb400b4b4, 0x97009797, 0xbe00bebe, 0x2b002b2b,
    0xbc00bcbc, 0x77007777, 0x2e002e2e, 0x03000303,
    0xd300d3d3, 0x19001919, 0x59005959, 0xc100c1c1,
    0x1d001d1d, 0x06000606, 0x41004141, 0x6b006b6b,
    0x55005555, 0xf000f0f0, 0x99009999, 0x69006969,
    0xea00eaea, 0x9c009c9c, 0x18001818, 0xae00aeae,
    0x63006363, 0xdf00dfdf, 0xe700e7e7, 0xbb00bbbb,
    0x00000000, 0x73007373, 0x66006666, 0xfb00fbfb,
    0x96009696, 0x4c004c4c, 0x85008585, 0xe400e4e4,
    0x3a003a3a, 0x09000909, 0x45004545, 0xaa00aaaa,
    0x0f000f0f, 0xee00eeee, 0x10001010, 0xeb00ebeb,
    0x2d002d2d, 0x7f007f7f, 0xf400f4f4, 0x29002929,
    0xac00acac, 0xcf00cfcf, 0xad00adad, 0x91009191,
    0x8d008d8d, 0x78007878, 0xc800c8c8, 0x95009595,
    0xf900f9f9, 0x2f002f2f, 0xce00cece, 0xcd00cdcd,
    0x08000808, 0x7a007a7a, 0x88008888, 0x38003838,
    0x5c005c5c, 0x83008383, 0x2a002a2a, 0x28002828,
    0x47004747, 0xdb00dbdb, 0xb800b8b8, 0xc700c7c7,
    0x93009393, 0xa400a4a4, 0x12001212, 0x53005353,
    0xff00ffff, 0x87008787, 0x0e000e0e, 0x31003131,
    0x36003636, 0x21002121, 0x58005858, 0x48004848,
    0x01000101, 0x8e008e8e, 0x37003737, 0x74007474,
    0x32003232, 0xca00caca, 0xe900e9e9, 0xb100b1b1,
    0xb700b7b7, 0xab00abab, 0x0c000c0c, 0xd700d7d7,
    0xc400c4c4, 0x56005656, 0x42004242, 0x26002626,
    0x07000707, 0x98009898, 0x60006060, 0xd900d9d9,
    0xb600b6b6, 0xb900b9b9, 0x11001111, 0x40004040,
    0xec00ecec, 0x20002020, 0x8c008c8c, 0xbd00bdbd,
    0xa000a0a0, 0xc900c9c9, 0x84008484, 0x04000404,
    0x49004949, 0x23002323, 0xf100f1f1, 0x4f004f4f,
    0x50005050, 0x1f001f1f, 0x13001313, 0xdc00dcdc,
    0xd800d8d8, 0xc000c0c0, 0x9e009e9e, 0x57005757,
    0xe300e3e3, 0xc300c3c3, 0x7b007b7b, 0x65006565,
    0x3b003b3b, 0x02000202, 0x8f008f8f, 0x3e003e3e,
    0xe800e8e8, 0x25002525, 0x92009292, 0xe500e5e5,
    0x15001515, 0xdd00dddd, 0xfd00fdfd, 0x17001717,
    0xa900a9a9, 0xbf00bfbf, 0xd400d4d4, 0x9a009a9a,
    0x7e007e7e, 0xc500c5c5, 0x39003939, 0x67006767,
    0xfe00fefe, 0x76007676, 0x9d009d9d, 0x43004343,
    0xa700a7a7, 0xe100e1e1, 0xd000d0d0, 0xf500f5f5,
    0x68006868, 0xf200f2f2, 0x1b001b1b, 0x34003434,
    0x70007070, 0x05000505, 0xa300a3a3, 0x8a008a8a,
    0xd500d5d5, 0x79007979, 0x86008686, 0xa800a8a8,
    0x30003030, 0xc600c6c6, 0x51005151, 0x4b004b4b,
    0x1e001e1e, 0xa600a6a6, 0x27002727, 0xf600f6f6,
    0x35003535, 0xd200d2d2, 0x6e006e6e, 0x24002424,
    0x16001616, 0x82008282, 0x5f005f5f, 0xda00dada,
    0xe600e6e6, 0x75007575, 0xa200a2a2, 0xef00efef,
    0x2c002c2c, 0xb200b2b2, 0x1c001c1c, 0x9f009f9f,
    0x5d005d5d, 0x6f006f6f, 0x80008080, 0x0a000a0a,
    0x72007272, 0x44004444, 0x9b009b9b, 0x6c006c6c,
    0x90009090, 0x0b000b0b, 0x5b005b5b, 0x33003333,
    0x7d007d7d, 0x5a005a5a, 0x52005252, 0xf300f3f3,
    0x61006161, 0xa100a1a1, 0xf700f7f7, 0xb000b0b0,
    0xd600d6d6, 0x3f003f3f, 0x7c007c7c, 0x6d006d6d,
    0xed00eded, 0x14001414, 0xe000e0e0, 0xa500a5a5,
    0x3d003d3d, 0x22002222, 0xb300b3b3, 0xf800f8f8,
    0x89008989, 0xde00dede, 0x71007171, 0x1a001a1a,
    0xaf00afaf, 0xba00baba, 0xb500b5b5, 0x81008181
};

static const uint32_t X1[256] = {
    0x52520052, 0x09090009, 0x6a6a006a, 0xd5d500d5,
    0x30300030, 0x36360036, 0xa5a500a5, 0x38380038,
    0xbfbf00bf, 0x40400040, 0xa3a300a3, 0x9e9e009e,
    0x81810081, 0xf3f300f3, 0xd7d700d7, 0xfbfb00fb,
    0x7c7c007c, 0xe3e300e3, 0x39390039, 0x82820082,
    0x9b9b009b, 0x2f2f002f, 0xffff00ff, 0x87870087,
    0x34340034, 0x8e8e008e, 0x43430043, 0x44440044,
    0xc4c400c4, 0xdede00de, 0xe9e900e9, 0xcbcb00cb,
    0x54540054, 0x7b7b007b, 0x94940094, 0x32320032,
    0xa6a600a6, 0xc2c200c2, 0x23230023, 0x3d3d003d,
    0xeeee00ee, 0x4c4c004c, 0x95950095, 0x0b0b000b,
    0x42420042, 0xfafa00fa, 0xc3c300c3, 0x4e4e004e,
    0x08080008, 0x2e2e002e, 0xa1a100a1, 0x66660066,
    0x28280028, 0xd9d900d9, 0x24240024, 0xb2b200b2,
    0x76760076, 0x5b5b005b, 0xa2a200a2, 0x49490049,
    0x6d6d006d, 0x8b8b008b, 0xd1d100d1, 0x25250025,
    0x72720072, 0xf8f800f8, 0xf6f600f6, 0x64640064,
    0x86860086, 0x68680068, 0x98980098, 0x16160016,
    0xd4d400d4, 0xa4a400a4, 0x5c5c005c, 0xcccc00cc,
    0x5d5d005d, 0x65650065, 0xb6b600b6, 0x92920092,
    0x6c6c006c, 0x70700070, 0x48480048, 0x50500050,
    0xfdfd00fd, 0xeded00ed, 0xb9b900b9, 0xdada00da,
    0x5e5e005e, 0x15150015, 0x46460046, 0x57570057,
    0xa7a700a7, 0x8d8d008d, 0x9d9d009d, 0x84840084,
    0x90900090, 0xd8d800d8, 0xabab00ab, 0x00000000,
    0x8c8c008c, 0xbcbc00bc, 0xd3d300d3, 0x0a0a000a,
    0xf7f700f7, 0xe4e400e4, 0x58580058, 0x05050005,
    0xb8b800b8, 0xb3b300b3, 0x45450045, 0x06060006,
    0xd0d000d0, 0x2c2c002c, 0x1e1e001e, 0x8f8f008f,
    0xcaca00ca, 0x3f3f003f, 0x0f0f000f, 0x02020002,
    0xc1c100c1, 0xafaf00af, 0xbdbd00bd, 0x03030003,
    0x01010001, 0x13130013, 0x8a8a008a, 0x6b6b006b,
    0x3a3a003a, 0x91910091, 0x11110011, 0x41410041,
    0x4f4f004f, 0x67670067, 0xdcdc00dc, 0xeaea00ea,
    0x97970097, 0xf2f200f2, 0xcfcf00cf, 0xcece00ce,
    0xf0f000f0, 0xb4b400b4, 0xe6e600e6, 0x73730073,
    0x96960096, 0xacac00ac, 0x74740074, 0x22220022,
    0xe7e700e7, 0xadad00ad, 0x35350035, 0x85850085,
    0xe2e200e2, 0xf9f900f9, 0x37370037, 0xe8e800e8,
    0x1c1c001c, 0x75750075, 0xdfdf00df, 0x6e6e006e,
    0x47470047, 0xf1f100f1, 0x1a1a001a, 0x71710071,
    0x1d1d001d, 0x29290029, 0xc5c500c5, 0x89890089,
    0x6f6f006f, 0xb7b700b7, 0x62620062, 0x0e0e000e,
    0xaaaa00aa, 0x18180018, 0xbebe00be, 0x1b1b001b,
    0xfcfc00fc, 0x56560056, 0x3e3e003e, 0x4b4b004b,
    0xc6c600c6, 0xd2d200d2, 0x79790079, 0x20200020,
    0x9a9a009a, 0xdbdb00db, 0xc0c000c0, 0xfefe00fe,
    0x78780078, 0xcdcd00cd, 0x5a5a005a, 0xf4f400f4,
    0x1f1f001f, 0xdddd00dd, 0xa8a800a8, 0x33330033,
    0x88880088, 0x07070007, 0xc7c700c7, 0x31310031,
    0xb1b100b1, 0x12120012, 0x10100010, 0x59590059,
    0x27270027, 0x80800080, 0xecec00ec, 0x5f5f005f,
    0x60600060, 0x51510051, 0x7f7f007f, 0xa9a900a9,
    0x19190019, 0xb5b500b5, 0x4a4a004a, 0x0d0d000d,
    0x2d2d002d, 0xe5e500e5, 0x7a7a007a, 0x9f9f009f,
    0x93930093, 0xc9c900c9, 0x9c9c009c, 0xefef00ef,
    0xa0a000a0, 0xe0e000e0, 0x3b3b003b, 0x4d4d004d,
    0xaeae00ae, 0x2a2a002a, 0xf5f500f5, 0xb0b000b0,
    0xc8c800c8, 0xebeb00eb, 0xbbbb00bb, 0x3c3c003c,
    0x83830083, 0x53530053, 0x99990099, 0x61610061,
    0x17170017, 0x2b2b002b, 0x04040004, 0x7e7e007e,
    0xbaba00ba, 0x77770077, 0xd6d600d6, 0x26260026,
    0xe1e100e1, 0x69690069, 0x14140014, 0x63630063,
    0x55550055, 0x21210021, 0x0c0c000c, 0x7d7d007d
};

static const uint32_t X2[256] = {
    0x30303000, 0x68686800, 0x99999900, 0x1b1b1b00,
    0x87878700, 0xb9b9b900, 0x21212100, 0x78787800,
    0x50505000, 0x39393900, 0xdbdbdb00, 0xe1e1e100,
    0x72727200, 0x09090900, 0x62626200, 0x3c3c3c00,
    0x3e3e3e00, 0x7e7e7e00, 0x5e5e5e00, 0x8e8e8e00,
    0xf1f1f100, 0xa0a0a000, 0xcccccc00, 0xa3a3a300,
    0x2a2a2a00, 0x1d1d1d00, 0xfbfbfb00, 0xb6b6b600,
    0xd6d6d600, 0x20202000, 0xc4c4c400, 0x8d8d8d00,
    0x81818100, 0x65656500, 0xf5f5f500, 0x89898900,
    0xcbcbcb00, 0x9d9d9d00, 0x77777700, 0xc6c6c600,
    0x57575700, 0x43434300, 0x56565600, 0x17171700,
    0xd4d4d400, 0x40404000, 0x1a1a1a00, 0x4d4d4d00,
    0xc0c0c000, 0x63636300, 0x6c6c6c00, 0xe3e3e300,
    0xb7b7b700, 0xc8c8c800, 0x64646400, 0x6a6a6a00,
    0x53535300, 0xaaaaaa00, 0x38383800, 0x98989800,
    0x0c0c0c00, 0xf4f4f400, 0x9b9b9b00, 0xededed00,
    0x7f7f7f00, 0x22222200, 0x76767600, 0xafafaf00,
    0xdddddd00, 0x3a3a3a00, 0x0b0b0b00, 0x58585800,
    0x67676700, 0x88888800, 0x06060600, 0xc3c3c300,
    0x35353500, 0x0d0d0d00, 0x01010100, 0x8b8b8b00,
    0x8c8c8c00, 0xc2c2c200, 0xe6e6e600, 0x5f5f5f00,
    0x02020200, 0x24242400, 0x75757500, 0x93939300,
    0x66666600, 0x1e1e1e00, 0xe5e5e500, 0xe2e2e200,
    0x54545400, 0xd8d8d800, 0x10101000, 0xcecece00,
    0x7a7a7a00, 0xe8e8e800, 0x08080800, 0x2c2c2c00,
    0x12121200, 0x97979700, 0x32323200, 0xababab00,
    0xb4b4b400, 0x27272700, 0x0a0a0a00, 0x23232300,
    0xdfdfdf00, 0xefefef00, 0xcacaca00, 0xd9d9d900,
    0xb8b8b800, 0xfafafa00, 0xdcdcdc00, 0x31313100,
    0x6b6b6b00, 0xd1d1d100, 0xadadad00, 0x19191900,
    0x49494900, 0xbdbdbd00, 0x51515100, 0x96969600,
    0xeeeeee00, 0xe4e4e400, 0xa8a8a800, 0x41414100,
    0xdadada00, 0xffffff00, 0xcdcdcd00, 0x55555500,
    0x86868600, 0x36363600, 0xbebebe00, 0x61616100,
    0x52525200, 0xf8f8f800, 0xbbbbbb00, 0x0e0e0e00,
    0x82828200, 0x48484800, 0x69696900, 0x9a9a9a00,
    0xe0e0e000, 0x47474700, 0x9e9e9e00, 0x5c5c5c00,
    0x04040400, 0x4b4b4b00, 0x34343400, 0x15151500,
    0x79797900, 0x26262600, 0xa7a7a700, 0xdedede00,
    0x29292900, 0xaeaeae00, 0x92929200, 0xd7d7d700,
    0x84848400, 0xe9e9e900, 0xd2d2d200, 0xbababa00,
    0x5d5d5d00, 0xf3f3f300, 0xc5c5c500, 0xb0b0b000,
    0xbfbfbf00, 0xa4a4a400, 0x3b3b3b00, 0x71717100,
    0x44444400, 0x46464600, 0x2b2b2b00, 0xfcfcfc00,
    0xebebeb00, 0x6f6f6f00, 0xd5d5d500, 0xf6f6f600,
    0x14141400, 0xfefefe00, 0x7c7c7c00, 0x70707000,
    0x5a5a5a00, 0x7d7d7d00, 0xfdfdfd00, 0x2f2f2f00,
    0x18181800, 0x83838300, 0x16161600, 0xa5a5a500,
    0x91919100, 0x1f1f1f00, 0x05050500, 0x95959500,
    0x74747400, 0xa9a9a900, 0xc1c1c100, 0x5b5b5b00,
    0x4a4a4a00, 0x85858500, 0x6d6d6d00, 0x13131300,
    0x07070700, 0x4f4f4f00, 0x4e4e4e00, 0x45454500,
    0xb2b2b200, 0x0f0f0f00, 0xc9c9c900, 0x1c1c1c00,
    0xa6a6a600, 0xbcbcbc00, 0xececec00, 0x73737300,
    0x90909000, 0x7b7b7b00, 0xcfcfcf00, 0x59595900,
    0x8f8f8f00, 0xa1a1a100, 0xf9f9f900, 0x2d2d2d00,
    0xf2f2f200, 0xb1b1b100, 0x00000000, 0x94949400,
    0x37373700, 0x9f9f9f00, 0xd0d0d000, 0x2e2e2e00,
    0x9c9c9c00, 0x6e6e6e00, 0x28282800, 0x3f3f3f00,
    0x80808000, 0xf0f0f000, 0x3d3d3d00, 0xd3d3d300,
    0x25252500, 0x8a8a8a00, 0xb5b5b500, 0xe7e7e700,
    0x42424200, 0xb3b3b300, 0xc7c7c700, 0xeaeaea00,
    0xf7f7f700, 0x4c4c4c00, 0x11111100, 0x33333300,
    0x03030300, 0xa2a2a200, 0xacacac00, 0x60606000
};

/* Key XOR Layer */
#define ARIA_ADD_ROUND_KEY(RK, T0, T1, T2, T3)  \
    do {                                        \
        (T0) ^= (RK)->u[0];                     \
        (T1) ^= (RK)->u[1];                     \
        (T2) ^= (RK)->u[2];                     \
        (T3) ^= (RK)->u[3];                     \
    } while(0)

/* S-Box Layer 1 + M */
#define ARIA_SBOX_LAYER1_WITH_PRE_DIFF(T0, T1, T2, T3)  \
    do {                                                \
        (T0) =                                          \
            S1[GET_U8_BE(T0, 0)] ^                      \
            S2[GET_U8_BE(T0, 1)] ^                      \
            X1[GET_U8_BE(T0, 2)] ^                      \
            X2[GET_U8_BE(T0, 3)];                       \
        (T1) =                                          \
            S1[GET_U8_BE(T1, 0)] ^                      \
            S2[GET_U8_BE(T1, 1)] ^                      \
            X1[GET_U8_BE(T1, 2)] ^                      \
            X2[GET_U8_BE(T1, 3)];                       \
        (T2) =                                          \
            S1[GET_U8_BE(T2, 0)] ^                      \
            S2[GET_U8_BE(T2, 1)] ^                      \
            X1[GET_U8_BE(T2, 2)] ^                      \
            X2[GET_U8_BE(T2, 3)];                       \
        (T3) =                                          \
            S1[GET_U8_BE(T3, 0)] ^                      \
            S2[GET_U8_BE(T3, 1)] ^                      \
            X1[GET_U8_BE(T3, 2)] ^                      \
            X2[GET_U8_BE(T3, 3)];                       \
    } while(0)

/* S-Box Layer 2 + M */
#define ARIA_SBOX_LAYER2_WITH_PRE_DIFF(T0, T1, T2, T3)  \
    do {                                                \
        (T0) =                                          \
            X1[GET_U8_BE(T0, 0)] ^                      \
            X2[GET_U8_BE(T0, 1)] ^                      \
            S1[GET_U8_BE(T0, 2)] ^                      \
            S2[GET_U8_BE(T0, 3)];                       \
        (T1) =                                          \
            X1[GET_U8_BE(T1, 0)] ^                      \
            X2[GET_U8_BE(T1, 1)] ^                      \
            S1[GET_U8_BE(T1, 2)] ^                      \
            S2[GET_U8_BE(T1, 3)];                       \
        (T2) =                                          \
            X1[GET_U8_BE(T2, 0)] ^                      \
            X2[GET_U8_BE(T2, 1)] ^                      \
            S1[GET_U8_BE(T2, 2)] ^                      \
            S2[GET_U8_BE(T2, 3)];                       \
        (T3) =                                          \
            X1[GET_U8_BE(T3, 0)] ^                      \
            X2[GET_U8_BE(T3, 1)] ^                      \
            S1[GET_U8_BE(T3, 2)] ^                      \
            S2[GET_U8_BE(T3, 3)];                       \
    } while(0)

/* Word-level diffusion */
#define ARIA_DIFF_WORD(T0,T1,T2,T3) \
    do {                            \
        (T1) ^= (T2);               \
        (T2) ^= (T3);               \
        (T0) ^= (T1);               \
                                    \
        (T3) ^= (T1);               \
        (T2) ^= (T0);               \
        (T1) ^= (T2);               \
    } while(0)

/* Byte-level diffusion */
#define ARIA_DIFF_BYTE(T0, T1, T2, T3)                                  \
    do {                                                                \
        (T1) = (((T1) << 8) & 0xff00ff00) ^ (((T1) >> 8) & 0x00ff00ff); \
        (T2) = rotr32(T2, 16);                                          \
        (T3) = bswap32(T3);                                             \
    } while(0)

/* Odd round Substitution & Diffusion */
#define ARIA_SUBST_DIFF_ODD(T0, T1, T2, T3)             \
    do {                                                \
        ARIA_SBOX_LAYER1_WITH_PRE_DIFF(T0, T1, T2, T3); \
        ARIA_DIFF_WORD(T0, T1, T2, T3);                 \
        ARIA_DIFF_BYTE(T0, T1, T2, T3);                 \
        ARIA_DIFF_WORD(T0, T1, T2, T3);                 \
    } while(0)

/* Even round Substitution & Diffusion */
#define ARIA_SUBST_DIFF_EVEN(T0, T1, T2, T3)            \
    do {                                                \
        ARIA_SBOX_LAYER2_WITH_PRE_DIFF(T0, T1, T2, T3); \
        ARIA_DIFF_WORD(T0, T1, T2, T3);                 \
        ARIA_DIFF_BYTE(T2, T3, T0, T1);                 \
        ARIA_DIFF_WORD(T0, T1, T2, T3);                 \
    } while(0)

/* Q, R Macro expanded ARIA GSRK */
#define _ARIA_GSRK(RK, X, Y, Q, R)                  \
    do {                                            \
        (RK)->u[0] =                                \
            ((X)[0]) ^                              \
            (((Y)[((Q)    ) % 4]) >> (R)) ^         \
            (((Y)[((Q) + 3) % 4]) << (32 - (R)));   \
        (RK)->u[1] =                                \
            ((X)[1]) ^                              \
            (((Y)[((Q) + 1) % 4]) >> (R)) ^         \
            (((Y)[((Q)    ) % 4]) << (32 - (R)));   \
        (RK)->u[2] =                                \
            ((X)[2]) ^                              \
            (((Y)[((Q) + 2) % 4]) >> (R)) ^         \
            (((Y)[((Q) + 1) % 4]) << (32 - (R)));   \
        (RK)->u[3] =                                \
            ((X)[3]) ^                              \
            (((Y)[((Q) + 3) % 4]) >> (R)) ^         \
            (((Y)[((Q) + 2) % 4]) << (32 - (R)));   \
    } while(0)

#define ARIA_GSRK(RK, X, Y, N) _ARIA_GSRK(RK, X, Y, 4 - ((N) / 32), (N) % 32)

#define ARIA_DEC_DIFF_BYTE(X, Y, TMP, TMP2)         \
    do {                                            \
        (TMP) = (X);                                \
        (TMP2) = rotr32((TMP), 8);                  \
        (Y) = (TMP2) ^ rotr32((TMP) ^ (TMP2), 16);  \
    } while(0)

void aria_encrypt(const unsigned char *in, unsigned char *out,
                  const ARIA_KEY *key)
{
    register uint32_t reg0, reg1, reg2, reg3;
    int Nr;
    const ARIA_u128 *rk;

    if (in == NULL || out == NULL || key == NULL) {
        return;
    }

    rk = key->rd_key;
    Nr = key->rounds;

    if (Nr != 12 && Nr != 14 && Nr != 16) {
        return;
    }

    reg0 = GET_U32_BE(in, 0);
    reg1 = GET_U32_BE(in, 1);
    reg2 = GET_U32_BE(in, 2);
    reg3 = GET_U32_BE(in, 3);

    ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
    rk++;

    ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);
    ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
    rk++;

    while(Nr -= 2){
        ARIA_SUBST_DIFF_EVEN(reg0, reg1, reg2, reg3);
        ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
        rk++;

        ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);
        ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
        rk++;
    }

    reg0 = rk->u[0] ^ MAKE_U32(
        (uint8_t)(X1[GET_U8_BE(reg0, 0)]     ),
        (uint8_t)(X2[GET_U8_BE(reg0, 1)] >> 8),
        (uint8_t)(S1[GET_U8_BE(reg0, 2)]     ),
        (uint8_t)(S2[GET_U8_BE(reg0, 3)]     ));
    reg1 = rk->u[1] ^ MAKE_U32(
        (uint8_t)(X1[GET_U8_BE(reg1, 0)]     ),
        (uint8_t)(X2[GET_U8_BE(reg1, 1)] >> 8),
        (uint8_t)(S1[GET_U8_BE(reg1, 2)]     ),
        (uint8_t)(S2[GET_U8_BE(reg1, 3)]     ));
    reg2 = rk->u[2] ^ MAKE_U32(
        (uint8_t)(X1[GET_U8_BE(reg2, 0)]     ),
        (uint8_t)(X2[GET_U8_BE(reg2, 1)] >> 8),
        (uint8_t)(S1[GET_U8_BE(reg2, 2)]     ),
        (uint8_t)(S2[GET_U8_BE(reg2, 3)]     ));
    reg3 = rk->u[3] ^ MAKE_U32(
        (uint8_t)(X1[GET_U8_BE(reg3, 0)]     ),
        (uint8_t)(X2[GET_U8_BE(reg3, 1)] >> 8),
        (uint8_t)(S1[GET_U8_BE(reg3, 2)]     ),
        (uint8_t)(S2[GET_U8_BE(reg3, 3)]     ));

    PUT_U32_BE(out, 0, reg0);
    PUT_U32_BE(out, 1, reg1);
    PUT_U32_BE(out, 2, reg2);
    PUT_U32_BE(out, 3, reg3);
}

int aria_set_encrypt_key(const unsigned char *userKey, const int bits,
                         ARIA_KEY *key)
{
    register uint32_t reg0, reg1, reg2, reg3;
    uint32_t w0[4], w1[4], w2[4], w3[4];
    const uint32_t *ck;

    ARIA_u128 *rk;
    int Nr = (bits + 256) / 32;

    if (userKey == NULL || key == NULL) {
        return -1;
    }
    if (bits != 128 && bits != 192 && bits != 256) {
        return -2;
    }

    rk = key->rd_key;
    key->rounds = Nr;
    ck = &Key_RC[(bits - 128) / 64][0];

    w0[0] = GET_U32_BE(userKey, 0);
    w0[1] = GET_U32_BE(userKey, 1);
    w0[2] = GET_U32_BE(userKey, 2);
    w0[3] = GET_U32_BE(userKey, 3);

    reg0 = w0[0] ^ ck[0];
    reg1 = w0[1] ^ ck[1];
    reg2 = w0[2] ^ ck[2];
    reg3 = w0[3] ^ ck[3];

    ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);

    if (bits > 128) {
        w1[0] = GET_U32_BE(userKey, 4);
        w1[1] = GET_U32_BE(userKey, 5);
        if (bits > 192) {
            w1[2] = GET_U32_BE(userKey, 6);
            w1[3] = GET_U32_BE(userKey, 7);
        }
        else {
            w1[2] = w1[3] = 0;
        }
    }
    else {
        w1[0] = w1[1] = w1[2] = w1[3] = 0;
    }

    w1[0] ^= reg0;
    w1[1] ^= reg1;
    w1[2] ^= reg2;
    w1[3] ^= reg3;

    reg0 = w1[0];
    reg1 = w1[1];
    reg2 = w1[2];
    reg3 = w1[3];

    reg0 ^= ck[4];
    reg1 ^= ck[5];
    reg2 ^= ck[6];
    reg3 ^= ck[7];

    ARIA_SUBST_DIFF_EVEN(reg0, reg1, reg2, reg3);

    reg0 ^= w0[0];
    reg1 ^= w0[1];
    reg2 ^= w0[2];
    reg3 ^= w0[3];

    w2[0] = reg0;
    w2[1] = reg1;
    w2[2] = reg2;
    w2[3] = reg3;

    reg0 ^= ck[8];
    reg1 ^= ck[9];
    reg2 ^= ck[10];
    reg3 ^= ck[11];

    ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);

    w3[0] = reg0 ^ w1[0];
    w3[1] = reg1 ^ w1[1];
    w3[2] = reg2 ^ w1[2];
    w3[3] = reg3 ^ w1[3];

    ARIA_GSRK(rk, w0, w1, 19);
    rk++;
    ARIA_GSRK(rk, w1, w2, 19);
    rk++;
    ARIA_GSRK(rk, w2, w3, 19);
    rk++;
    ARIA_GSRK(rk, w3, w0, 19);

    rk++;
    ARIA_GSRK(rk, w0, w1, 31);
    rk++;
    ARIA_GSRK(rk, w1, w2, 31);
    rk++;
    ARIA_GSRK(rk, w2, w3, 31);
    rk++;
    ARIA_GSRK(rk, w3, w0, 31);

    rk++;
    ARIA_GSRK(rk, w0, w1, 67);
    rk++;
    ARIA_GSRK(rk, w1, w2, 67);
    rk++;
    ARIA_GSRK(rk, w2, w3, 67);
    rk++;
    ARIA_GSRK(rk, w3, w0, 67);

    rk++;
    ARIA_GSRK(rk, w0, w1, 97);
    if (bits > 128) {
        rk++;
        ARIA_GSRK(rk, w1, w2, 97);
        rk++;
        ARIA_GSRK(rk, w2, w3, 97);
    }
    if (bits > 192) {
        rk++;
        ARIA_GSRK(rk, w3, w0, 97);

        rk++;
        ARIA_GSRK(rk, w0, w1, 109);
    }

    return 0;
}

int aria_set_decrypt_key(const unsigned char *userKey, const int bits,
                         ARIA_KEY *key)
{
    ARIA_u128 *rk_head;
    ARIA_u128 *rk_tail;
    register uint32_t w1, w2;
    register uint32_t reg0, reg1, reg2, reg3;
    uint32_t s0, s1, s2, s3;

    const int r = aria_set_encrypt_key(userKey, bits, key);

    if (r != 0) {
        return r;
    }

    rk_head = key->rd_key;
    rk_tail = rk_head + key->rounds;

    reg0 = rk_head->u[0];
    reg1 = rk_head->u[1];
    reg2 = rk_head->u[2];
    reg3 = rk_head->u[3];

    memcpy(rk_head, rk_tail, ARIA_BLOCK_SIZE);

    rk_tail->u[0] = reg0;
    rk_tail->u[1] = reg1;
    rk_tail->u[2] = reg2;
    rk_tail->u[3] = reg3;

    rk_head++;
    rk_tail--;

    for (; rk_head < rk_tail; rk_head++, rk_tail--) {
        ARIA_DEC_DIFF_BYTE(rk_head->u[0], reg0, w1, w2);
        ARIA_DEC_DIFF_BYTE(rk_head->u[1], reg1, w1, w2);
        ARIA_DEC_DIFF_BYTE(rk_head->u[2], reg2, w1, w2);
        ARIA_DEC_DIFF_BYTE(rk_head->u[3], reg3, w1, w2);

        ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
        ARIA_DIFF_BYTE(reg0, reg1, reg2, reg3);
        ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);

        s0 = reg0;
        s1 = reg1;
        s2 = reg2;
        s3 = reg3;

        ARIA_DEC_DIFF_BYTE(rk_tail->u[0], reg0, w1, w2);
        ARIA_DEC_DIFF_BYTE(rk_tail->u[1], reg1, w1, w2);
        ARIA_DEC_DIFF_BYTE(rk_tail->u[2], reg2, w1, w2);
        ARIA_DEC_DIFF_BYTE(rk_tail->u[3], reg3, w1, w2);

        ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
        ARIA_DIFF_BYTE(reg0, reg1, reg2, reg3);
        ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);

        rk_head->u[0] = reg0;
        rk_head->u[1] = reg1;
        rk_head->u[2] = reg2;
        rk_head->u[3] = reg3;

        rk_tail->u[0] = s0;
        rk_tail->u[1] = s1;
        rk_tail->u[2] = s2;
        rk_tail->u[3] = s3;
    }
    ARIA_DEC_DIFF_BYTE(rk_head->u[0], reg0, w1, w2);
    ARIA_DEC_DIFF_BYTE(rk_head->u[1], reg1, w1, w2);
    ARIA_DEC_DIFF_BYTE(rk_head->u[2], reg2, w1, w2);
    ARIA_DEC_DIFF_BYTE(rk_head->u[3], reg3, w1, w2);

    ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
    ARIA_DIFF_BYTE(reg0, reg1, reg2, reg3);
    ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);

    rk_tail->u[0] = reg0;
    rk_tail->u[1] = reg1;
    rk_tail->u[2] = reg2;
    rk_tail->u[3] = reg3;

    return 0;
}

#else

static const unsigned char sb1[256] = {
    0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5,
    0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
    0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
    0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
    0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc,
    0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
    0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a,
    0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
    0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
    0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
    0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b,
    0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
    0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85,
    0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
    0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
    0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
    0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17,
    0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
    0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88,
    0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
    0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
    0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
    0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9,
    0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
    0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6,
    0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
    0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
    0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
    0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94,
    0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
    0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68,
    0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
};

static const unsigned char sb2[256] = {
    0xe2, 0x4e, 0x54, 0xfc, 0x94, 0xc2, 0x4a, 0xcc,
    0x62, 0x0d, 0x6a, 0x46, 0x3c, 0x4d, 0x8b, 0xd1,
    0x5e, 0xfa, 0x64, 0xcb, 0xb4, 0x97, 0xbe, 0x2b,
    0xbc, 0x77, 0x2e, 0x03, 0xd3, 0x19, 0x59, 0xc1,
    0x1d, 0x06, 0x41, 0x6b, 0x55, 0xf0, 0x99, 0x69,
    0xea, 0x9c, 0x18, 0xae, 0x63, 0xdf, 0xe7, 0xbb,
    0x00, 0x73, 0x66, 0xfb, 0x96, 0x4c, 0x85, 0xe4,
    0x3a, 0x09, 0x45, 0xaa, 0x0f, 0xee, 0x10, 0xeb,
    0x2d, 0x7f, 0xf4, 0x29, 0xac, 0xcf, 0xad, 0x91,
    0x8d, 0x78, 0xc8, 0x95, 0xf9, 0x2f, 0xce, 0xcd,
    0x08, 0x7a, 0x88, 0x38, 0x5c, 0x83, 0x2a, 0x28,
    0x47, 0xdb, 0xb8, 0xc7, 0x93, 0xa4, 0x12, 0x53,
    0xff, 0x87, 0x0e, 0x31, 0x36, 0x21, 0x58, 0x48,
    0x01, 0x8e, 0x37, 0x74, 0x32, 0xca, 0xe9, 0xb1,
    0xb7, 0xab, 0x0c, 0xd7, 0xc4, 0x56, 0x42, 0x26,
    0x07, 0x98, 0x60, 0xd9, 0xb6, 0xb9, 0x11, 0x40,
    0xec, 0x20, 0x8c, 0xbd, 0xa0, 0xc9, 0x84, 0x04,
    0x49, 0x23, 0xf1, 0x4f, 0x50, 0x1f, 0x13, 0xdc,
    0xd8, 0xc0, 0x9e, 0x57, 0xe3, 0xc3, 0x7b, 0x65,
    0x3b, 0x02, 0x8f, 0x3e, 0xe8, 0x25, 0x92, 0xe5,
    0x15, 0xdd, 0xfd, 0x17, 0xa9, 0xbf, 0xd4, 0x9a,
    0x7e, 0xc5, 0x39, 0x67, 0xfe, 0x76, 0x9d, 0x43,
    0xa7, 0xe1, 0xd0, 0xf5, 0x68, 0xf2, 0x1b, 0x34,
    0x70, 0x05, 0xa3, 0x8a, 0xd5, 0x79, 0x86, 0xa8,
    0x30, 0xc6, 0x51, 0x4b, 0x1e, 0xa6, 0x27, 0xf6,
    0x35, 0xd2, 0x6e, 0x24, 0x16, 0x82, 0x5f, 0xda,
    0xe6, 0x75, 0xa2, 0xef, 0x2c, 0xb2, 0x1c, 0x9f,
    0x5d, 0x6f, 0x80, 0x0a, 0x72, 0x44, 0x9b, 0x6c,
    0x90, 0x0b, 0x5b, 0x33, 0x7d, 0x5a, 0x52, 0xf3,
    0x61, 0xa1, 0xf7, 0xb0, 0xd6, 0x3f, 0x7c, 0x6d,
    0xed, 0x14, 0xe0, 0xa5, 0x3d, 0x22, 0xb3, 0xf8,
    0x89, 0xde, 0x71, 0x1a, 0xaf, 0xba, 0xb5, 0x81
};

static const unsigned char sb3[256] = {
    0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38,
    0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
    0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
    0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
    0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d,
    0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
    0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2,
    0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
    0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
    0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
    0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda,
    0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
    0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a,
    0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
    0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
    0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
    0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea,
    0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
    0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85,
    0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
    0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
    0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
    0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20,
    0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
    0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31,
    0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
    0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
    0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
    0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0,
    0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
    0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26,
    0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
};

static const unsigned char sb4[256] = {
    0x30, 0x68, 0x99, 0x1b, 0x87, 0xb9, 0x21, 0x78,
    0x50, 0x39, 0xdb, 0xe1, 0x72, 0x09, 0x62, 0x3c,
    0x3e, 0x7e, 0x5e, 0x8e, 0xf1, 0xa0, 0xcc, 0xa3,
    0x2a, 0x1d, 0xfb, 0xb6, 0xd6, 0x20, 0xc4, 0x8d,
    0x81, 0x65, 0xf5, 0x89, 0xcb, 0x9d, 0x77, 0xc6,
    0x57, 0x43, 0x56, 0x17, 0xd4, 0x40, 0x1a, 0x4d,
    0xc0, 0x63, 0x6c, 0xe3, 0xb7, 0xc8, 0x64, 0x6a,
    0x53, 0xaa, 0x38, 0x98, 0x0c, 0xf4, 0x9b, 0xed,
    0x7f, 0x22, 0x76, 0xaf, 0xdd, 0x3a, 0x0b, 0x58,
    0x67, 0x88, 0x06, 0xc3, 0x35, 0x0d, 0x01, 0x8b,
    0x8c, 0xc2, 0xe6, 0x5f, 0x02, 0x24, 0x75, 0x93,
    0x66, 0x1e, 0xe5, 0xe2, 0x54, 0xd8, 0x10, 0xce,
    0x7a, 0xe8, 0x08, 0x2c, 0x12, 0x97, 0x32, 0xab,
    0xb4, 0x27, 0x0a, 0x23, 0xdf, 0xef, 0xca, 0xd9,
    0xb8, 0xfa, 0xdc, 0x31, 0x6b, 0xd1, 0xad, 0x19,
    0x49, 0xbd, 0x51, 0x96, 0xee, 0xe4, 0xa8, 0x41,
    0xda, 0xff, 0xcd, 0x55, 0x86, 0x36, 0xbe, 0x61,
    0x52, 0xf8, 0xbb, 0x0e, 0x82, 0x48, 0x69, 0x9a,
    0xe0, 0x47, 0x9e, 0x5c, 0x04, 0x4b, 0x34, 0x15,
    0x79, 0x26, 0xa7, 0xde, 0x29, 0xae, 0x92, 0xd7,
    0x84, 0xe9, 0xd2, 0xba, 0x5d, 0xf3, 0xc5, 0xb0,
    0xbf, 0xa4, 0x3b, 0x71, 0x44, 0x46, 0x2b, 0xfc,
    0xeb, 0x6f, 0xd5, 0xf6, 0x14, 0xfe, 0x7c, 0x70,
    0x5a, 0x7d, 0xfd, 0x2f, 0x18, 0x83, 0x16, 0xa5,
    0x91, 0x1f, 0x05, 0x95, 0x74, 0xa9, 0xc1, 0x5b,
    0x4a, 0x85, 0x6d, 0x13, 0x07, 0x4f, 0x4e, 0x45,
    0xb2, 0x0f, 0xc9, 0x1c, 0xa6, 0xbc, 0xec, 0x73,
    0x90, 0x7b, 0xcf, 0x59, 0x8f, 0xa1, 0xf9, 0x2d,
    0xf2, 0xb1, 0x00, 0x94, 0x37, 0x9f, 0xd0, 0x2e,
    0x9c, 0x6e, 0x28, 0x3f, 0x80, 0xf0, 0x3d, 0xd3,
    0x25, 0x8a, 0xb5, 0xe7, 0x42, 0xb3, 0xc7, 0xea,
    0xf7, 0x4c, 0x11, 0x33, 0x03, 0xa2, 0xac, 0x60
};

static const ARIA_u128 c1 = {{
    0x51, 0x7c, 0xc1, 0xb7, 0x27, 0x22, 0x0a, 0x94,
    0xfe, 0x13, 0xab, 0xe8, 0xfa, 0x9a, 0x6e, 0xe0
}};

static const ARIA_u128 c2 = {{
    0x6d, 0xb1, 0x4a, 0xcc, 0x9e, 0x21, 0xc8, 0x20,
    0xff, 0x28, 0xb1, 0xd5, 0xef, 0x5d, 0xe2, 0xb0
}};

static const ARIA_u128 c3 = {{
    0xdb, 0x92, 0x37, 0x1d, 0x21, 0x26, 0xe9, 0x70,
    0x03, 0x24, 0x97, 0x75, 0x04, 0xe8, 0xc9, 0x0e
}};

/*
 * Exclusive or two 128 bit values into the result.
 * It is safe for the result to be the same as the either input.
 */
static void xor128(ARIA_c128 o, const ARIA_c128 x, const ARIA_u128 *y)
{
    int i;

    for (i = 0; i < ARIA_BLOCK_SIZE; i++)
        o[i] = x[i] ^ y->c[i];
}

/*
 * Generalised circular rotate right and exclusive or function.
 * It is safe for the output to overlap either input.
 */
static ossl_inline void rotnr(unsigned int n, ARIA_u128 *o,
                              const ARIA_u128 *xor, const ARIA_u128 *z)
{
    const unsigned int bytes = n / 8, bits = n % 8;
    unsigned int i;
    ARIA_u128 t;

    for (i = 0; i < ARIA_BLOCK_SIZE; i++)
        t.c[(i + bytes) % ARIA_BLOCK_SIZE] = z->c[i];
    for (i = 0; i < ARIA_BLOCK_SIZE; i++)
        o->c[i] = ((t.c[i] >> bits) |
                (t.c[i ? i - 1 : ARIA_BLOCK_SIZE - 1] << (8 - bits))) ^
                xor->c[i];
}

/*
 * Circular rotate 19 bits right and xor.
 * It is safe for the output to overlap either input.
 */
static void rot19r(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
{
    rotnr(19, o, xor, z);
}

/*
 * Circular rotate 31 bits right and xor.
 * It is safe for the output to overlap either input.
 */
static void rot31r(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
{
    rotnr(31, o, xor, z);
}

/*
 * Circular rotate 61 bits left and xor.
 * It is safe for the output to overlap either input.
 */
static void rot61l(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
{
    rotnr(8 * ARIA_BLOCK_SIZE - 61, o, xor, z);
}

/*
 * Circular rotate 31 bits left and xor.
 * It is safe for the output to overlap either input.
 */
static void rot31l(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
{
    rotnr(8 * ARIA_BLOCK_SIZE - 31, o, xor, z);
}

/*
 * Circular rotate 19 bits left and xor.
 * It is safe for the output to overlap either input.
 */
static void rot19l(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
{
    rotnr(8 * ARIA_BLOCK_SIZE - 19, o, xor, z);
}

/*
 * First substitution and xor layer, used for odd steps.
 * It is safe for the input and output to be the same.
 */
static void sl1(ARIA_u128 *o, const ARIA_u128 *x, const ARIA_u128 *y)
{
    unsigned int i;
    for (i = 0; i < ARIA_BLOCK_SIZE; i += 4) {
        o->c[i    ] = sb1[x->c[i    ] ^ y->c[i    ]];
        o->c[i + 1] = sb2[x->c[i + 1] ^ y->c[i + 1]];
        o->c[i + 2] = sb3[x->c[i + 2] ^ y->c[i + 2]];
        o->c[i + 3] = sb4[x->c[i + 3] ^ y->c[i + 3]];
    }
}

/*
 * Second substitution and xor layer, used for even steps.
 * It is safe for the input and output to be the same.
 */
static void sl2(ARIA_c128 o, const ARIA_u128 *x, const ARIA_u128 *y)
{
    unsigned int i;
    for (i = 0; i < ARIA_BLOCK_SIZE; i += 4) {
        o[i    ] = sb3[x->c[i	 ] ^ y->c[i    ]];
        o[i + 1] = sb4[x->c[i + 1] ^ y->c[i + 1]];
        o[i + 2] = sb1[x->c[i + 2] ^ y->c[i + 2]];
        o[i + 3] = sb2[x->c[i + 3] ^ y->c[i + 3]];
    }
}

/*
 * Diffusion layer step
 * It is NOT safe for the input and output to overlap.
 */
static void a(ARIA_u128 *y, const ARIA_u128 *x)
{
    y->c[ 0] = x->c[ 3] ^ x->c[ 4] ^ x->c[ 6] ^ x->c[ 8] ^
               x->c[ 9] ^ x->c[13] ^ x->c[14];
    y->c[ 1] = x->c[ 2] ^ x->c[ 5] ^ x->c[ 7] ^ x->c[ 8] ^
               x->c[ 9] ^ x->c[12] ^ x->c[15];
    y->c[ 2] = x->c[ 1] ^ x->c[ 4] ^ x->c[ 6] ^ x->c[10] ^
               x->c[11] ^ x->c[12] ^ x->c[15];
    y->c[ 3] = x->c[ 0] ^ x->c[ 5] ^ x->c[ 7] ^ x->c[10] ^
               x->c[11] ^ x->c[13] ^ x->c[14];
    y->c[ 4] = x->c[ 0] ^ x->c[ 2] ^ x->c[ 5] ^ x->c[ 8] ^
               x->c[11] ^ x->c[14] ^ x->c[15];
    y->c[ 5] = x->c[ 1] ^ x->c[ 3] ^ x->c[ 4] ^ x->c[ 9] ^
               x->c[10] ^ x->c[14] ^ x->c[15];
    y->c[ 6] = x->c[ 0] ^ x->c[ 2] ^ x->c[ 7] ^ x->c[ 9] ^
               x->c[10] ^ x->c[12] ^ x->c[13];
    y->c[ 7] = x->c[ 1] ^ x->c[ 3] ^ x->c[ 6] ^ x->c[ 8] ^
               x->c[11] ^ x->c[12] ^ x->c[13];
    y->c[ 8] = x->c[ 0] ^ x->c[ 1] ^ x->c[ 4] ^ x->c[ 7] ^
               x->c[10] ^ x->c[13] ^ x->c[15];
    y->c[ 9] = x->c[ 0] ^ x->c[ 1] ^ x->c[ 5] ^ x->c[ 6] ^
               x->c[11] ^ x->c[12] ^ x->c[14];
    y->c[10] = x->c[ 2] ^ x->c[ 3] ^ x->c[ 5] ^ x->c[ 6] ^
               x->c[ 8] ^ x->c[13] ^ x->c[15];
    y->c[11] = x->c[ 2] ^ x->c[ 3] ^ x->c[ 4] ^ x->c[ 7] ^
               x->c[ 9] ^ x->c[12] ^ x->c[14];
    y->c[12] = x->c[ 1] ^ x->c[ 2] ^ x->c[ 6] ^ x->c[ 7] ^
               x->c[ 9] ^ x->c[11] ^ x->c[12];
    y->c[13] = x->c[ 0] ^ x->c[ 3] ^ x->c[ 6] ^ x->c[ 7] ^
               x->c[ 8] ^ x->c[10] ^ x->c[13];
    y->c[14] = x->c[ 0] ^ x->c[ 3] ^ x->c[ 4] ^ x->c[ 5] ^
               x->c[ 9] ^ x->c[11] ^ x->c[14];
    y->c[15] = x->c[ 1] ^ x->c[ 2] ^ x->c[ 4] ^ x->c[ 5] ^
               x->c[ 8] ^ x->c[10] ^ x->c[15];
}

/*
 * Odd round function
 * Apply the first substitution layer and then a diffusion step.
 * It is safe for the input and output to overlap.
 */
static ossl_inline void FO(ARIA_u128 *o, const ARIA_u128 *d,
                           const ARIA_u128 *rk)
{
    ARIA_u128 y;

    sl1(&y, d, rk);
    a(o, &y);
}

/*
 * Even round function
 * Apply the second substitution layer and then a diffusion step.
 * It is safe for the input and output to overlap.
 */
static ossl_inline void FE(ARIA_u128 *o, const ARIA_u128 *d,
                           const ARIA_u128 *rk)
{
    ARIA_u128 y;

    sl2(y.c, d, rk);
    a(o, &y);
}

/*
 * Encrypt or decrypt a single block
 * in and out can overlap
 */
static void do_encrypt(unsigned char *o, const unsigned char *pin,
                       unsigned int rounds, const ARIA_u128 *keys)
{
    ARIA_u128 p;
    unsigned int i;

    memcpy(&p, pin, sizeof(p));
    for (i = 0; i < rounds - 2; i += 2) {
        FO(&p, &p, &keys[i]);
        FE(&p, &p, &keys[i + 1]);
    }
    FO(&p, &p, &keys[rounds - 2]);
    sl2(o, &p, &keys[rounds - 1]);
    xor128(o, o, &keys[rounds]);
}

/*
 * Encrypt a single block
 * in and out can overlap
 */
void aria_encrypt(const unsigned char *in, unsigned char *out,
                  const ARIA_KEY *key)
{
    assert(in != NULL && out != NULL && key != NULL);
    do_encrypt(out, in, key->rounds, key->rd_key);
}


/*
 * Expand the cipher key into the encryption key schedule.
 * We short circuit execution of the last two
 * or four rotations based on the key size.
 */
int aria_set_encrypt_key(const unsigned char *userKey, const int bits,
                         ARIA_KEY *key)
{
    const ARIA_u128 *ck1, *ck2, *ck3;
    ARIA_u128 kr, w0, w1, w2, w3;

    if (!userKey || !key)
        return -1;
    memcpy(w0.c, userKey, sizeof(w0));
    switch (bits) {
    default:
        return -2;
    case 128:
        key->rounds = 12;
        ck1 = &c1;
        ck2 = &c2;
        ck3 = &c3;
        memset(kr.c, 0, sizeof(kr));
        break;

    case 192:
        key->rounds = 14;
        ck1 = &c2;
        ck2 = &c3;
        ck3 = &c1;
        memcpy(kr.c, userKey + ARIA_BLOCK_SIZE, sizeof(kr) / 2);
        memset(kr.c + ARIA_BLOCK_SIZE / 2, 0, sizeof(kr) / 2);
        break;

    case 256:
        key->rounds = 16;
        ck1 = &c3;
        ck2 = &c1;
        ck3 = &c2;
        memcpy(kr.c, userKey + ARIA_BLOCK_SIZE, sizeof(kr));
        break;
    }

    FO(&w3, &w0, ck1);    xor128(w1.c, w3.c, &kr);
    FE(&w3, &w1, ck2);    xor128(w2.c, w3.c, &w0);
    FO(&kr, &w2, ck3);    xor128(w3.c, kr.c, &w1);

    rot19r(&key->rd_key[ 0], &w0, &w1);
    rot19r(&key->rd_key[ 1], &w1, &w2);
    rot19r(&key->rd_key[ 2], &w2, &w3);
    rot19r(&key->rd_key[ 3], &w3, &w0);

    rot31r(&key->rd_key[ 4], &w0, &w1);
    rot31r(&key->rd_key[ 5], &w1, &w2);
    rot31r(&key->rd_key[ 6], &w2, &w3);
    rot31r(&key->rd_key[ 7], &w3, &w0);

    rot61l(&key->rd_key[ 8], &w0, &w1);
    rot61l(&key->rd_key[ 9], &w1, &w2);
    rot61l(&key->rd_key[10], &w2, &w3);
    rot61l(&key->rd_key[11], &w3, &w0);

    rot31l(&key->rd_key[12], &w0, &w1);
    if (key->rounds > 12) {
        rot31l(&key->rd_key[13], &w1, &w2);
        rot31l(&key->rd_key[14], &w2, &w3);

        if (key->rounds > 14) {
            rot31l(&key->rd_key[15], &w3, &w0);
            rot19l(&key->rd_key[16], &w0, &w1);
        }
    }
    return 0;
}

/*
 * Expand the cipher key into the decryption key schedule.
 */
int aria_set_decrypt_key(const unsigned char *userKey, const int bits,
                         ARIA_KEY *key)
{
    ARIA_KEY ek;
    const int r = aria_set_encrypt_key(userKey, bits, &ek);
    unsigned int i, rounds = ek.rounds;

    if (r == 0) {
        key->rounds = rounds;
        memcpy(&key->rd_key[0], &ek.rd_key[rounds], sizeof(key->rd_key[0]));
        for (i = 1; i < rounds; i++)
            a(&key->rd_key[i], &ek.rd_key[rounds - i]);
        memcpy(&key->rd_key[rounds], &ek.rd_key[0], sizeof(key->rd_key[rounds]));
    }
    return r;
}

#endif