aes.c

/*
 * aes.c
 *
 * An implemnetation of the AES block cipher.
 *
 * David A. McGrew
 * Cisco Systems, Inc.
 */

/*
 *
 * Copyright (c) 2001-2017, Cisco Systems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 *   Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided
 *   with the distribution.
 *
 *   Neither the name of the Cisco Systems, Inc. nor the names of its
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "aes.h"
#include "err.h"

/*
 * we use the tables T0, T1, T2, T3, and T4 to compute AES, and
 * the tables U0, U1, U2, and U4 to compute its inverse
 *
 * different tables are used on little-endian (Intel, VMS) and
 * big-endian processors (everything else)
 *
 * these tables are computed using the program tables/aes_tables; use
 * this program to generate different tables for porting or
 * optimization on a different platform
 */

#ifndef WORDS_BIGENDIAN
/* clang-format off */
static const uint32_t T0[256] = {
    0xa56363c6, 0x847c7cf8,  0x997777ee,  0x8d7b7bf6,
    0xdf2f2ff,  0xbd6b6bd6,  0xb16f6fde,  0x54c5c591,
    0x50303060, 0x3010102,   0xa96767ce,  0x7d2b2b56,
    0x19fefee7, 0x62d7d7b5,  0xe6abab4d,  0x9a7676ec,
    0x45caca8f, 0x9d82821f,  0x40c9c989,  0x877d7dfa,
    0x15fafaef, 0xeb5959b2,  0xc947478e,  0xbf0f0fb,
    0xecadad41, 0x67d4d4b3,  0xfda2a25f,  0xeaafaf45,
    0xbf9c9c23, 0xf7a4a453,  0x967272e4,  0x5bc0c09b,
    0xc2b7b775, 0x1cfdfde1,  0xae93933d,  0x6a26264c,
    0x5a36366c, 0x413f3f7e,  0x2f7f7f5,   0x4fcccc83,
    0x5c343468, 0xf4a5a551,  0x34e5e5d1,  0x8f1f1f9,
    0x937171e2, 0x73d8d8ab,  0x53313162,  0x3f15152a,
    0xc040408,  0x52c7c795,  0x65232346,  0x5ec3c39d,
    0x28181830, 0xa1969637,  0xf05050a,   0xb59a9a2f,
    0x907070e,  0x36121224,  0x9b80801b,  0x3de2e2df,
    0x26ebebcd, 0x6927274e,  0xcdb2b27f,  0x9f7575ea,
    0x1b090912, 0x9e83831d,  0x742c2c58,  0x2e1a1a34,
    0x2d1b1b36, 0xb26e6edc,  0xee5a5ab4,  0xfba0a05b,
    0xf65252a4, 0x4d3b3b76,  0x61d6d6b7,  0xceb3b37d,
    0x7b292952, 0x3ee3e3dd,  0x712f2f5e,  0x97848413,
    0xf55353a6, 0x68d1d1b9,  0x0,         0x2cededc1,
    0x60202040, 0x1ffcfce3,  0xc8b1b179,  0xed5b5bb6,
    0xbe6a6ad4, 0x46cbcb8d,  0xd9bebe67,  0x4b393972,
    0xde4a4a94, 0xd44c4c98,  0xe85858b0,  0x4acfcf85,
    0x6bd0d0bb, 0x2aefefc5,  0xe5aaaa4f,  0x16fbfbed,
    0xc5434386, 0xd74d4d9a,  0x55333366,  0x94858511,
    0xcf45458a, 0x10f9f9e9,  0x6020204,   0x817f7ffe,
    0xf05050a0, 0x443c3c78,  0xba9f9f25,  0xe3a8a84b,
    0xf35151a2, 0xfea3a35d,  0xc0404080,  0x8a8f8f05,
    0xad92923f, 0xbc9d9d21,  0x48383870,  0x4f5f5f1,
    0xdfbcbc63, 0xc1b6b677,  0x75dadaaf,  0x63212142,
    0x30101020, 0x1affffe5,  0xef3f3fd,   0x6dd2d2bf,
    0x4ccdcd81, 0x140c0c18,  0x35131326,  0x2fececc3,
    0xe15f5fbe, 0xa2979735,  0xcc444488,  0x3917172e,
    0x57c4c493, 0xf2a7a755,  0x827e7efc,  0x473d3d7a,
    0xac6464c8, 0xe75d5dba,  0x2b191932,  0x957373e6,
    0xa06060c0, 0x98818119,  0xd14f4f9e,  0x7fdcdca3,
    0x66222244, 0x7e2a2a54,  0xab90903b,  0x8388880b,
    0xca46468c, 0x29eeeec7,  0xd3b8b86b,  0x3c141428,
    0x79dedea7, 0xe25e5ebc,  0x1d0b0b16,  0x76dbdbad,
    0x3be0e0db, 0x56323264,  0x4e3a3a74,  0x1e0a0a14,
    0xdb494992, 0xa06060c,   0x6c242448,  0xe45c5cb8,
    0x5dc2c29f, 0x6ed3d3bd,  0xefacac43,  0xa66262c4,
    0xa8919139, 0xa4959531,  0x37e4e4d3,  0x8b7979f2,
    0x32e7e7d5, 0x43c8c88b,  0x5937376e,  0xb76d6dda,
    0x8c8d8d01, 0x64d5d5b1,  0xd24e4e9c,  0xe0a9a949,
    0xb46c6cd8, 0xfa5656ac,  0x7f4f4f3,   0x25eaeacf,
    0xaf6565ca, 0x8e7a7af4,  0xe9aeae47,  0x18080810,
    0xd5baba6f, 0x887878f0,  0x6f25254a,  0x722e2e5c,
    0x241c1c38, 0xf1a6a657,  0xc7b4b473,  0x51c6c697,
    0x23e8e8cb, 0x7cdddda1,  0x9c7474e8,  0x211f1f3e,
    0xdd4b4b96, 0xdcbdbd61,  0x868b8b0d,  0x858a8a0f,
    0x907070e0, 0x423e3e7c,  0xc4b5b571,  0xaa6666cc,
    0xd8484890, 0x5030306,   0x1f6f6f7,   0x120e0e1c,
    0xa36161c2, 0x5f35356a,  0xf95757ae,  0xd0b9b969,
    0x91868617, 0x58c1c199,  0x271d1d3a,  0xb99e9e27,
    0x38e1e1d9, 0x13f8f8eb,  0xb398982b,  0x33111122,
    0xbb6969d2, 0x70d9d9a9,  0x898e8e07,  0xa7949433,
    0xb69b9b2d, 0x221e1e3c,  0x92878715,  0x20e9e9c9,
    0x49cece87, 0xff5555aa,  0x78282850,  0x7adfdfa5,
    0x8f8c8c03, 0xf8a1a159,  0x80898909,  0x170d0d1a,
    0xdabfbf65, 0x31e6e6d7,  0xc6424284,  0xb86868d0,
    0xc3414182, 0xb0999929,  0x772d2d5a,  0x110f0f1e,
    0xcbb0b07b, 0xfc5454a8,  0xd6bbbb6d,  0x3a16162c,
};
/* clang-format on */

/* clang-format off */
static const uint32_t T1[256] = {
    0x6363c6a5, 0x7c7cf884,  0x7777ee99,  0x7b7bf68d,
    0xf2f2ff0d, 0x6b6bd6bd,  0x6f6fdeb1,  0xc5c59154,
    0x30306050, 0x1010203,   0x6767cea9,  0x2b2b567d,
    0xfefee719, 0xd7d7b562,  0xabab4de6,  0x7676ec9a,
    0xcaca8f45, 0x82821f9d,  0xc9c98940,  0x7d7dfa87,
    0xfafaef15, 0x5959b2eb,  0x47478ec9,  0xf0f0fb0b,
    0xadad41ec, 0xd4d4b367,  0xa2a25ffd,  0xafaf45ea,
    0x9c9c23bf, 0xa4a453f7,  0x7272e496,  0xc0c09b5b,
    0xb7b775c2, 0xfdfde11c,  0x93933dae,  0x26264c6a,
    0x36366c5a, 0x3f3f7e41,  0xf7f7f502,  0xcccc834f,
    0x3434685c, 0xa5a551f4,  0xe5e5d134,  0xf1f1f908,
    0x7171e293, 0xd8d8ab73,  0x31316253,  0x15152a3f,
    0x404080c,  0xc7c79552,  0x23234665,  0xc3c39d5e,
    0x18183028, 0x969637a1,  0x5050a0f,   0x9a9a2fb5,
    0x7070e09,  0x12122436,  0x80801b9b,  0xe2e2df3d,
    0xebebcd26, 0x27274e69,  0xb2b27fcd,  0x7575ea9f,
    0x909121b,  0x83831d9e,  0x2c2c5874,  0x1a1a342e,
    0x1b1b362d, 0x6e6edcb2,  0x5a5ab4ee,  0xa0a05bfb,
    0x5252a4f6, 0x3b3b764d,  0xd6d6b761,  0xb3b37dce,
    0x2929527b, 0xe3e3dd3e,  0x2f2f5e71,  0x84841397,
    0x5353a6f5, 0xd1d1b968,  0x00000000,  0xededc12c,
    0x20204060, 0xfcfce31f,  0xb1b179c8,  0x5b5bb6ed,
    0x6a6ad4be, 0xcbcb8d46,  0xbebe67d9,  0x3939724b,
    0x4a4a94de, 0x4c4c98d4,  0x5858b0e8,  0xcfcf854a,
    0xd0d0bb6b, 0xefefc52a,  0xaaaa4fe5,  0xfbfbed16,
    0x434386c5, 0x4d4d9ad7,  0x33336655,  0x85851194,
    0x45458acf, 0xf9f9e910,  0x2020406,   0x7f7ffe81,
    0x5050a0f0, 0x3c3c7844,  0x9f9f25ba,  0xa8a84be3,
    0x5151a2f3, 0xa3a35dfe,  0x404080c0,  0x8f8f058a,
    0x92923fad, 0x9d9d21bc,  0x38387048,  0xf5f5f104,
    0xbcbc63df, 0xb6b677c1,  0xdadaaf75,  0x21214263,
    0x10102030, 0xffffe51a,  0xf3f3fd0e,  0xd2d2bf6d,
    0xcdcd814c, 0xc0c1814,   0x13132635,  0xececc32f,
    0x5f5fbee1, 0x979735a2,  0x444488cc,  0x17172e39,
    0xc4c49357, 0xa7a755f2,  0x7e7efc82,  0x3d3d7a47,
    0x6464c8ac, 0x5d5dbae7,  0x1919322b,  0x7373e695,
    0x6060c0a0, 0x81811998,  0x4f4f9ed1,  0xdcdca37f,
    0x22224466, 0x2a2a547e,  0x90903bab,  0x88880b83,
    0x46468cca, 0xeeeec729,  0xb8b86bd3,  0x1414283c,
    0xdedea779, 0x5e5ebce2,  0xb0b161d,   0xdbdbad76,
    0xe0e0db3b, 0x32326456,  0x3a3a744e,  0xa0a141e,
    0x494992db, 0x6060c0a,   0x2424486c,  0x5c5cb8e4,
    0xc2c29f5d, 0xd3d3bd6e,  0xacac43ef,  0x6262c4a6,
    0x919139a8, 0x959531a4,  0xe4e4d337,  0x7979f28b,
    0xe7e7d532, 0xc8c88b43,  0x37376e59,  0x6d6ddab7,
    0x8d8d018c, 0xd5d5b164,  0x4e4e9cd2,  0xa9a949e0,
    0x6c6cd8b4, 0x5656acfa,  0xf4f4f307,  0xeaeacf25,
    0x6565caaf, 0x7a7af48e,  0xaeae47e9,  0x8081018,
    0xbaba6fd5, 0x7878f088,  0x25254a6f,  0x2e2e5c72,
    0x1c1c3824, 0xa6a657f1,  0xb4b473c7,  0xc6c69751,
    0xe8e8cb23, 0xdddda17c,  0x7474e89c,  0x1f1f3e21,
    0x4b4b96dd, 0xbdbd61dc,  0x8b8b0d86,  0x8a8a0f85,
    0x7070e090, 0x3e3e7c42,  0xb5b571c4,  0x6666ccaa,
    0x484890d8, 0x3030605,   0xf6f6f701,  0xe0e1c12,
    0x6161c2a3, 0x35356a5f,  0x5757aef9,  0xb9b969d0,
    0x86861791, 0xc1c19958,  0x1d1d3a27,  0x9e9e27b9,
    0xe1e1d938, 0xf8f8eb13,  0x98982bb3,  0x11112233,
    0x6969d2bb, 0xd9d9a970,  0x8e8e0789,  0x949433a7,
    0x9b9b2db6, 0x1e1e3c22,  0x87871592,  0xe9e9c920,
    0xcece8749, 0x5555aaff,  0x28285078,  0xdfdfa57a,
    0x8c8c038f, 0xa1a159f8,  0x89890980,  0xd0d1a17,
    0xbfbf65da, 0xe6e6d731,  0x424284c6,  0x6868d0b8,
    0x414182c3, 0x999929b0,  0x2d2d5a77,  0xf0f1e11,
    0xb0b07bcb, 0x5454a8fc,  0xbbbb6dd6,  0x16162c3a,
};
/* clang-format on */

/* clang-format off */
static const uint32_t T2[256] = {
    0x63c6a563, 0x7cf8847c,  0x77ee9977,  0x7bf68d7b,
    0xf2ff0df2, 0x6bd6bd6b,  0x6fdeb16f,  0xc59154c5,
    0x30605030, 0x1020301,   0x67cea967,  0x2b567d2b,
    0xfee719fe, 0xd7b562d7,  0xab4de6ab,  0x76ec9a76,
    0xca8f45ca, 0x821f9d82,  0xc98940c9,  0x7dfa877d,
    0xfaef15fa, 0x59b2eb59,  0x478ec947,  0xf0fb0bf0,
    0xad41ecad, 0xd4b367d4,  0xa25ffda2,  0xaf45eaaf,
    0x9c23bf9c, 0xa453f7a4,  0x72e49672,  0xc09b5bc0,
    0xb775c2b7, 0xfde11cfd,  0x933dae93,  0x264c6a26,
    0x366c5a36, 0x3f7e413f,  0xf7f502f7,  0xcc834fcc,
    0x34685c34, 0xa551f4a5,  0xe5d134e5,  0xf1f908f1,
    0x71e29371, 0xd8ab73d8,  0x31625331,  0x152a3f15,
    0x4080c04,  0xc79552c7,  0x23466523,  0xc39d5ec3,
    0x18302818, 0x9637a196,  0x50a0f05,   0x9a2fb59a,
    0x70e0907,  0x12243612,  0x801b9b80,  0xe2df3de2,
    0xebcd26eb, 0x274e6927,  0xb27fcdb2,  0x75ea9f75,
    0x9121b09,  0x831d9e83,  0x2c58742c,  0x1a342e1a,
    0x1b362d1b, 0x6edcb26e,  0x5ab4ee5a,  0xa05bfba0,
    0x52a4f652, 0x3b764d3b,  0xd6b761d6,  0xb37dceb3,
    0x29527b29, 0xe3dd3ee3,  0x2f5e712f,  0x84139784,
    0x53a6f553, 0xd1b968d1,  0x0,         0xedc12ced,
    0x20406020, 0xfce31ffc,  0xb179c8b1,  0x5bb6ed5b,
    0x6ad4be6a, 0xcb8d46cb,  0xbe67d9be,  0x39724b39,
    0x4a94de4a, 0x4c98d44c,  0x58b0e858,  0xcf854acf,
    0xd0bb6bd0, 0xefc52aef,  0xaa4fe5aa,  0xfbed16fb,
    0x4386c543, 0x4d9ad74d,  0x33665533,  0x85119485,
    0x458acf45, 0xf9e910f9,  0x2040602,   0x7ffe817f,
    0x50a0f050, 0x3c78443c,  0x9f25ba9f,  0xa84be3a8,
    0x51a2f351, 0xa35dfea3,  0x4080c040,  0x8f058a8f,
    0x923fad92, 0x9d21bc9d,  0x38704838,  0xf5f104f5,
    0xbc63dfbc, 0xb677c1b6,  0xdaaf75da,  0x21426321,
    0x10203010, 0xffe51aff,  0xf3fd0ef3,  0xd2bf6dd2,
    0xcd814ccd, 0xc18140c,   0x13263513,  0xecc32fec,
    0x5fbee15f, 0x9735a297,  0x4488cc44,  0x172e3917,
    0xc49357c4, 0xa755f2a7,  0x7efc827e,  0x3d7a473d,
    0x64c8ac64, 0x5dbae75d,  0x19322b19,  0x73e69573,
    0x60c0a060, 0x81199881,  0x4f9ed14f,  0xdca37fdc,
    0x22446622, 0x2a547e2a,  0x903bab90,  0x880b8388,
    0x468cca46, 0xeec729ee,  0xb86bd3b8,  0x14283c14,
    0xdea779de, 0x5ebce25e,  0xb161d0b,   0xdbad76db,
    0xe0db3be0, 0x32645632,  0x3a744e3a,  0xa141e0a,
    0x4992db49, 0x60c0a06,   0x24486c24,  0x5cb8e45c,
    0xc29f5dc2, 0xd3bd6ed3,  0xac43efac,  0x62c4a662,
    0x9139a891, 0x9531a495,  0xe4d337e4,  0x79f28b79,
    0xe7d532e7, 0xc88b43c8,  0x376e5937,  0x6ddab76d,
    0x8d018c8d, 0xd5b164d5,  0x4e9cd24e,  0xa949e0a9,
    0x6cd8b46c, 0x56acfa56,  0xf4f307f4,  0xeacf25ea,
    0x65caaf65, 0x7af48e7a,  0xae47e9ae,  0x8101808,
    0xba6fd5ba, 0x78f08878,  0x254a6f25,  0x2e5c722e,
    0x1c38241c, 0xa657f1a6,  0xb473c7b4,  0xc69751c6,
    0xe8cb23e8, 0xdda17cdd,  0x74e89c74,  0x1f3e211f,
    0x4b96dd4b, 0xbd61dcbd,  0x8b0d868b,  0x8a0f858a,
    0x70e09070, 0x3e7c423e,  0xb571c4b5,  0x66ccaa66,
    0x4890d848, 0x3060503,   0xf6f701f6,  0xe1c120e,
    0x61c2a361, 0x356a5f35,  0x57aef957,  0xb969d0b9,
    0x86179186, 0xc19958c1,  0x1d3a271d,  0x9e27b99e,
    0xe1d938e1, 0xf8eb13f8,  0x982bb398,  0x11223311,
    0x69d2bb69, 0xd9a970d9,  0x8e07898e,  0x9433a794,
    0x9b2db69b, 0x1e3c221e,  0x87159287,  0xe9c920e9,
    0xce8749ce, 0x55aaff55,  0x28507828,  0xdfa57adf,
    0x8c038f8c, 0xa159f8a1,  0x89098089,  0xd1a170d,
    0xbf65dabf, 0xe6d731e6,  0x4284c642,  0x68d0b868,
    0x4182c341, 0x9929b099,  0x2d5a772d,  0xf1e110f,
    0xb07bcbb0, 0x54a8fc54,  0xbb6dd6bb,  0x162c3a16,
};
/* clang-format on */

/* clang-format off */
static const uint32_t T3[256] = {
    0xc6a56363, 0xf8847c7c,  0xee997777,  0xf68d7b7b,
    0xff0df2f2, 0xd6bd6b6b,  0xdeb16f6f,  0x9154c5c5,
    0x60503030, 0x2030101,   0xcea96767,  0x567d2b2b,
    0xe719fefe, 0xb562d7d7,  0x4de6abab,  0xec9a7676,
    0x8f45caca, 0x1f9d8282,  0x8940c9c9,  0xfa877d7d,
    0xef15fafa, 0xb2eb5959,  0x8ec94747,  0xfb0bf0f0,
    0x41ecadad, 0xb367d4d4,  0x5ffda2a2,  0x45eaafaf,
    0x23bf9c9c, 0x53f7a4a4,  0xe4967272,  0x9b5bc0c0,
    0x75c2b7b7, 0xe11cfdfd,  0x3dae9393,  0x4c6a2626,
    0x6c5a3636, 0x7e413f3f,  0xf502f7f7,  0x834fcccc,
    0x685c3434, 0x51f4a5a5,  0xd134e5e5,  0xf908f1f1,
    0xe2937171, 0xab73d8d8,  0x62533131,  0x2a3f1515,
    0x80c0404,  0x9552c7c7,  0x46652323,  0x9d5ec3c3,
    0x30281818, 0x37a19696,  0xa0f0505,   0x2fb59a9a,
    0xe090707,  0x24361212,  0x1b9b8080,  0xdf3de2e2,
    0xcd26ebeb, 0x4e692727,  0x7fcdb2b2,  0xea9f7575,
    0x121b0909, 0x1d9e8383,  0x58742c2c,  0x342e1a1a,
    0x362d1b1b, 0xdcb26e6e,  0xb4ee5a5a,  0x5bfba0a0,
    0xa4f65252, 0x764d3b3b,  0xb761d6d6,  0x7dceb3b3,
    0x527b2929, 0xdd3ee3e3,  0x5e712f2f,  0x13978484,
    0xa6f55353, 0xb968d1d1,  0x0,         0xc12ceded,
    0x40602020, 0xe31ffcfc,  0x79c8b1b1,  0xb6ed5b5b,
    0xd4be6a6a, 0x8d46cbcb,  0x67d9bebe,  0x724b3939,
    0x94de4a4a, 0x98d44c4c,  0xb0e85858,  0x854acfcf,
    0xbb6bd0d0, 0xc52aefef,  0x4fe5aaaa,  0xed16fbfb,
    0x86c54343, 0x9ad74d4d,  0x66553333,  0x11948585,
    0x8acf4545, 0xe910f9f9,  0x4060202,   0xfe817f7f,
    0xa0f05050, 0x78443c3c,  0x25ba9f9f,  0x4be3a8a8,
    0xa2f35151, 0x5dfea3a3,  0x80c04040,  0x58a8f8f,
    0x3fad9292, 0x21bc9d9d,  0x70483838,  0xf104f5f5,
    0x63dfbcbc, 0x77c1b6b6,  0xaf75dada,  0x42632121,
    0x20301010, 0xe51affff,  0xfd0ef3f3,  0xbf6dd2d2,
    0x814ccdcd, 0x18140c0c,  0x26351313,  0xc32fecec,
    0xbee15f5f, 0x35a29797,  0x88cc4444,  0x2e391717,
    0x9357c4c4, 0x55f2a7a7,  0xfc827e7e,  0x7a473d3d,
    0xc8ac6464, 0xbae75d5d,  0x322b1919,  0xe6957373,
    0xc0a06060, 0x19988181,  0x9ed14f4f,  0xa37fdcdc,
    0x44662222, 0x547e2a2a,  0x3bab9090,  0xb838888,
    0x8cca4646, 0xc729eeee,  0x6bd3b8b8,  0x283c1414,
    0xa779dede, 0xbce25e5e,  0x161d0b0b,  0xad76dbdb,
    0xdb3be0e0, 0x64563232,  0x744e3a3a,  0x141e0a0a,
    0x92db4949, 0xc0a0606,   0x486c2424,  0xb8e45c5c,
    0x9f5dc2c2, 0xbd6ed3d3,  0x43efacac,  0xc4a66262,
    0x39a89191, 0x31a49595,  0xd337e4e4,  0xf28b7979,
    0xd532e7e7, 0x8b43c8c8,  0x6e593737,  0xdab76d6d,
    0x18c8d8d,  0xb164d5d5,  0x9cd24e4e,  0x49e0a9a9,
    0xd8b46c6c, 0xacfa5656,  0xf307f4f4,  0xcf25eaea,
    0xcaaf6565, 0xf48e7a7a,  0x47e9aeae,  0x10180808,
    0x6fd5baba, 0xf0887878,  0x4a6f2525,  0x5c722e2e,
    0x38241c1c, 0x57f1a6a6,  0x73c7b4b4,  0x9751c6c6,
    0xcb23e8e8, 0xa17cdddd,  0xe89c7474,  0x3e211f1f,
    0x96dd4b4b, 0x61dcbdbd,  0xd868b8b,   0xf858a8a,
    0xe0907070, 0x7c423e3e,  0x71c4b5b5,  0xccaa6666,
    0x90d84848, 0x6050303,   0xf701f6f6,  0x1c120e0e,
    0xc2a36161, 0x6a5f3535,  0xaef95757,  0x69d0b9b9,
    0x17918686, 0x9958c1c1,  0x3a271d1d,  0x27b99e9e,
    0xd938e1e1, 0xeb13f8f8,  0x2bb39898,  0x22331111,
    0xd2bb6969, 0xa970d9d9,  0x7898e8e,   0x33a79494,
    0x2db69b9b, 0x3c221e1e,  0x15928787,  0xc920e9e9,
    0x8749cece, 0xaaff5555,  0x50782828,  0xa57adfdf,
    0x38f8c8c,  0x59f8a1a1,  0x9808989,   0x1a170d0d,
    0x65dabfbf, 0xd731e6e6,  0x84c64242,  0xd0b86868,
    0x82c34141, 0x29b09999,  0x5a772d2d,  0x1e110f0f,
    0x7bcbb0b0, 0xa8fc5454,  0x6dd6bbbb,  0x2c3a1616,
};
/* clang-format on */

/* clang-format off */
static const uint32_t U0[256] = {
    0x50a7f451, 0x5365417e,  0xc3a4171a,  0x965e273a,
    0xcb6bab3b, 0xf1459d1f,  0xab58faac,  0x9303e34b,
    0x55fa3020, 0xf66d76ad,  0x9176cc88,  0x254c02f5,
    0xfcd7e54f, 0xd7cb2ac5,  0x80443526,  0x8fa362b5,
    0x495ab1de, 0x671bba25,  0x980eea45,  0xe1c0fe5d,
    0x2752fc3,  0x12f04c81,  0xa397468d,  0xc6f9d36b,
    0xe75f8f03, 0x959c9215,  0xeb7a6dbf,  0xda595295,
    0x2d83bed4, 0xd3217458,  0x2969e049,  0x44c8c98e,
    0x6a89c275, 0x78798ef4,  0x6b3e5899,  0xdd71b927,
    0xb64fe1be, 0x17ad88f0,  0x66ac20c9,  0xb43ace7d,
    0x184adf63, 0x82311ae5,  0x60335197,  0x457f5362,
    0xe07764b1, 0x84ae6bbb,  0x1ca081fe,  0x942b08f9,
    0x58684870, 0x19fd458f,  0x876cde94,  0xb7f87b52,
    0x23d373ab, 0xe2024b72,  0x578f1fe3,  0x2aab5566,
    0x728ebb2,  0x3c2b52f,   0x9a7bc586,  0xa50837d3,
    0xf2872830, 0xb2a5bf23,  0xba6a0302,  0x5c8216ed,
    0x2b1ccf8a, 0x92b479a7,  0xf0f207f3,  0xa1e2694e,
    0xcdf4da65, 0xd5be0506,  0x1f6234d1,  0x8afea6c4,
    0x9d532e34, 0xa055f3a2,  0x32e18a05,  0x75ebf6a4,
    0x39ec830b, 0xaaef6040,  0x69f715e,   0x51106ebd,
    0xf98a213e, 0x3d06dd96,  0xae053edd,  0x46bde64d,
    0xb58d5491, 0x55dc471,   0x6fd40604,  0xff155060,
    0x24fb9819, 0x97e9bdd6,  0xcc434089,  0x779ed967,
    0xbd42e8b0, 0x888b8907,  0x385b19e7,  0xdbeec879,
    0x470a7ca1, 0xe90f427c,  0xc91e84f8,  0x0,
    0x83868009, 0x48ed2b32,  0xac70111e,  0x4e725a6c,
    0xfbff0efd, 0x5638850f,  0x1ed5ae3d,  0x27392d36,
    0x64d90f0a, 0x21a65c68,  0xd1545b9b,  0x3a2e3624,
    0xb1670a0c, 0xfe75793,   0xd296eeb4,  0x9e919b1b,
    0x4fc5c080, 0xa220dc61,  0x694b775a,  0x161a121c,
    0xaba93e2,  0xe52aa0c0,  0x43e0223c,  0x1d171b12,
    0xb0d090e,  0xadc78bf2,  0xb9a8b62d,  0xc8a91e14,
    0x8519f157, 0x4c0775af,  0xbbdd99ee,  0xfd607fa3,
    0x9f2601f7, 0xbcf5725c,  0xc53b6644,  0x347efb5b,
    0x7629438b, 0xdcc623cb,  0x68fcedb6,  0x63f1e4b8,
    0xcadc31d7, 0x10856342,  0x40229713,  0x2011c684,
    0x7d244a85, 0xf83dbbd2,  0x1132f9ae,  0x6da129c7,
    0x4b2f9e1d, 0xf330b2dc,  0xec52860d,  0xd0e3c177,
    0x6c16b32b, 0x99b970a9,  0xfa489411,  0x2264e947,
    0xc48cfca8, 0x1a3ff0a0,  0xd82c7d56,  0xef903322,
    0xc74e4987, 0xc1d138d9,  0xfea2ca8c,  0x360bd498,
    0xcf81f5a6, 0x28de7aa5,  0x268eb7da,  0xa4bfad3f,
    0xe49d3a2c, 0xd927850,   0x9bcc5f6a,  0x62467e54,
    0xc2138df6, 0xe8b8d890,  0x5ef7392e,  0xf5afc382,
    0xbe805d9f, 0x7c93d069,  0xa92dd56f,  0xb31225cf,
    0x3b99acc8, 0xa77d1810,  0x6e639ce8,  0x7bbb3bdb,
    0x97826cd,  0xf418596e,  0x1b79aec,   0xa89a4f83,
    0x656e95e6, 0x7ee6ffaa,  0x8cfbc21,   0xe6e815ef,
    0xd99be7ba, 0xce366f4a,  0xd4099fea,  0xd67cb029,
    0xafb2a431, 0x31233f2a,  0x3094a5c6,  0xc066a235,
    0x37bc4e74, 0xa6ca82fc,  0xb0d090e0,  0x15d8a733,
    0x4a9804f1, 0xf7daec41,  0xe50cd7f,   0x2ff69117,
    0x8dd64d76, 0x4db0ef43,  0x544daacc,  0xdf0496e4,
    0xe3b5d19e, 0x1b886a4c,  0xb81f2cc1,  0x7f516546,
    0x4ea5e9d,  0x5d358c01,  0x737487fa,  0x2e410bfb,
    0x5a1d67b3, 0x52d2db92,  0x335610e9,  0x1347d66d,
    0x8c61d79a, 0x7a0ca137,  0x8e14f859,  0x893c13eb,
    0xee27a9ce, 0x35c961b7,  0xede51ce1,  0x3cb1477a,
    0x59dfd29c, 0x3f73f255,  0x79ce1418,  0xbf37c773,
    0xeacdf753, 0x5baafd5f,  0x146f3ddf,  0x86db4478,
    0x81f3afca, 0x3ec468b9,  0x2c342438,  0x5f40a3c2,
    0x72c31d16, 0xc25e2bc,   0x8b493c28,  0x41950dff,
    0x7101a839, 0xdeb30c08,  0x9ce4b4d8,  0x90c15664,
    0x6184cb7b, 0x70b632d5,  0x745c6c48,  0x4257b8d0,
};
/* clang-format on */

/* clang-format off */
static const uint32_t U1[256] = {
    0xa7f45150, 0x65417e53,  0xa4171ac3,  0x5e273a96,
    0x6bab3bcb, 0x459d1ff1,  0x58faacab,  0x3e34b93,
    0xfa302055, 0x6d76adf6,  0x76cc8891,  0x4c02f525,
    0xd7e54ffc, 0xcb2ac5d7,  0x44352680,  0xa362b58f,
    0x5ab1de49, 0x1bba2567,  0xeea4598,   0xc0fe5de1,
    0x752fc302, 0xf04c8112,  0x97468da3,  0xf9d36bc6,
    0x5f8f03e7, 0x9c921595,  0x7a6dbfeb,  0x595295da,
    0x83bed42d, 0x217458d3,  0x69e04929,  0xc8c98e44,
    0x89c2756a, 0x798ef478,  0x3e58996b,  0x71b927dd,
    0x4fe1beb6, 0xad88f017,  0xac20c966,  0x3ace7db4,
    0x4adf6318, 0x311ae582,  0x33519760,  0x7f536245,
    0x7764b1e0, 0xae6bbb84,  0xa081fe1c,  0x2b08f994,
    0x68487058, 0xfd458f19,  0x6cde9487,  0xf87b52b7,
    0xd373ab23, 0x24b72e2,   0x8f1fe357,  0xab55662a,
    0x28ebb207, 0xc2b52f03,  0x7bc5869a,  0x837d3a5,
    0x872830f2, 0xa5bf23b2,  0x6a0302ba,  0x8216ed5c,
    0x1ccf8a2b, 0xb479a792,  0xf207f3f0,  0xe2694ea1,
    0xf4da65cd, 0xbe0506d5,  0x6234d11f,  0xfea6c48a,
    0x532e349d, 0x55f3a2a0,  0xe18a0532,  0xebf6a475,
    0xec830b39, 0xef6040aa,  0x9f715e06,  0x106ebd51,
    0x8a213ef9, 0x6dd963d,   0x53eddae,   0xbde64d46,
    0x8d5491b5, 0x5dc47105,  0xd406046f,  0x155060ff,
    0xfb981924, 0xe9bdd697,  0x434089cc,  0x9ed96777,
    0x42e8b0bd, 0x8b890788,  0x5b19e738,  0xeec879db,
    0xa7ca147,  0xf427ce9,   0x1e84f8c9,  0x0,
    0x86800983, 0xed2b3248,  0x70111eac,  0x725a6c4e,
    0xff0efdfb, 0x38850f56,  0xd5ae3d1e,  0x392d3627,
    0xd90f0a64, 0xa65c6821,  0x545b9bd1,  0x2e36243a,
    0x670a0cb1, 0xe757930f,  0x96eeb4d2,  0x919b1b9e,
    0xc5c0804f, 0x20dc61a2,  0x4b775a69,  0x1a121c16,
    0xba93e20a, 0x2aa0c0e5,  0xe0223c43,  0x171b121d,
    0xd090e0b,  0xc78bf2ad,  0xa8b62db9,  0xa91e14c8,
    0x19f15785, 0x775af4c,   0xdd99eebb,  0x607fa3fd,
    0x2601f79f, 0xf5725cbc,  0x3b6644c5,  0x7efb5b34,
    0x29438b76, 0xc623cbdc,  0xfcedb668,  0xf1e4b863,
    0xdc31d7ca, 0x85634210,  0x22971340,  0x11c68420,
    0x244a857d, 0x3dbbd2f8,  0x32f9ae11,  0xa129c76d,
    0x2f9e1d4b, 0x30b2dcf3,  0x52860dec,  0xe3c177d0,
    0x16b32b6c, 0xb970a999,  0x489411fa,  0x64e94722,
    0x8cfca8c4, 0x3ff0a01a,  0x2c7d56d8,  0x903322ef,
    0x4e4987c7, 0xd138d9c1,  0xa2ca8cfe,  0xbd49836,
    0x81f5a6cf, 0xde7aa528,  0x8eb7da26,  0xbfad3fa4,
    0x9d3a2ce4, 0x9278500d,  0xcc5f6a9b,  0x467e5462,
    0x138df6c2, 0xb8d890e8,  0xf7392e5e,  0xafc382f5,
    0x805d9fbe, 0x93d0697c,  0x2dd56fa9,  0x1225cfb3,
    0x99acc83b, 0x7d1810a7,  0x639ce86e,  0xbb3bdb7b,
    0x7826cd09, 0x18596ef4,  0xb79aec01,  0x9a4f83a8,
    0x6e95e665, 0xe6ffaa7e,  0xcfbc2108,  0xe815efe6,
    0x9be7bad9, 0x366f4ace,  0x99fead4,   0x7cb029d6,
    0xb2a431af, 0x233f2a31,  0x94a5c630,  0x66a235c0,
    0xbc4e7437, 0xca82fca6,  0xd090e0b0,  0xd8a73315,
    0x9804f14a, 0xdaec41f7,  0x50cd7f0e,  0xf691172f,
    0xd64d768d, 0xb0ef434d,  0x4daacc54,  0x496e4df,
    0xb5d19ee3, 0x886a4c1b,  0x1f2cc1b8,  0x5165467f,
    0xea5e9d04, 0x358c015d,  0x7487fa73,  0x410bfb2e,
    0x1d67b35a, 0xd2db9252,  0x5610e933,  0x47d66d13,
    0x61d79a8c, 0xca1377a,   0x14f8598e,  0x3c13eb89,
    0x27a9ceee, 0xc961b735,  0xe51ce1ed,  0xb1477a3c,
    0xdfd29c59, 0x73f2553f,  0xce141879,  0x37c773bf,
    0xcdf753ea, 0xaafd5f5b,  0x6f3ddf14,  0xdb447886,
    0xf3afca81, 0xc468b93e,  0x3424382c,  0x40a3c25f,
    0xc31d1672, 0x25e2bc0c,  0x493c288b,  0x950dff41,
    0x1a83971,  0xb30c08de,  0xe4b4d89c,  0xc1566490,
    0x84cb7b61, 0xb632d570,  0x5c6c4874,  0x57b8d042,
};
/* clang-format on */

/* clang-format off */
static const uint32_t U2[256] = {
    0xf45150a7, 0x417e5365,  0x171ac3a4,  0x273a965e,
    0xab3bcb6b, 0x9d1ff145,  0xfaacab58,  0xe34b9303,
    0x302055fa, 0x76adf66d,  0xcc889176,  0x2f5254c,
    0xe54ffcd7, 0x2ac5d7cb,  0x35268044,  0x62b58fa3,
    0xb1de495a, 0xba25671b,  0xea45980e,  0xfe5de1c0,
    0x2fc30275, 0x4c8112f0,  0x468da397,  0xd36bc6f9,
    0x8f03e75f, 0x9215959c,  0x6dbfeb7a,  0x5295da59,
    0xbed42d83, 0x7458d321,  0xe0492969,  0xc98e44c8,
    0xc2756a89, 0x8ef47879,  0x58996b3e,  0xb927dd71,
    0xe1beb64f, 0x88f017ad,  0x20c966ac,  0xce7db43a,
    0xdf63184a, 0x1ae58231,  0x51976033,  0x5362457f,
    0x64b1e077, 0x6bbb84ae,  0x81fe1ca0,  0x8f9942b,
    0x48705868, 0x458f19fd,  0xde94876c,  0x7b52b7f8,
    0x73ab23d3, 0x4b72e202,  0x1fe3578f,  0x55662aab,
    0xebb20728, 0xb52f03c2,  0xc5869a7b,  0x37d3a508,
    0x2830f287, 0xbf23b2a5,  0x302ba6a,   0x16ed5c82,
    0xcf8a2b1c, 0x79a792b4,  0x7f3f0f2,   0x694ea1e2,
    0xda65cdf4, 0x506d5be,   0x34d11f62,  0xa6c48afe,
    0x2e349d53, 0xf3a2a055,  0x8a0532e1,  0xf6a475eb,
    0x830b39ec, 0x6040aaef,  0x715e069f,  0x6ebd5110,
    0x213ef98a, 0xdd963d06,  0x3eddae05,  0xe64d46bd,
    0x5491b58d, 0xc471055d,  0x6046fd4,   0x5060ff15,
    0x981924fb, 0xbdd697e9,  0x4089cc43,  0xd967779e,
    0xe8b0bd42, 0x8907888b,  0x19e7385b,  0xc879dbee,
    0x7ca1470a, 0x427ce90f,  0x84f8c91e,  0x0,
    0x80098386, 0x2b3248ed,  0x111eac70,  0x5a6c4e72,
    0xefdfbff,  0x850f5638,  0xae3d1ed5,  0x2d362739,
    0xf0a64d9,  0x5c6821a6,  0x5b9bd154,  0x36243a2e,
    0xa0cb167,  0x57930fe7,  0xeeb4d296,  0x9b1b9e91,
    0xc0804fc5, 0xdc61a220,  0x775a694b,  0x121c161a,
    0x93e20aba, 0xa0c0e52a,  0x223c43e0,  0x1b121d17,
    0x90e0b0d,  0x8bf2adc7,  0xb62db9a8,  0x1e14c8a9,
    0xf1578519, 0x75af4c07,  0x99eebbdd,  0x7fa3fd60,
    0x1f79f26,  0x725cbcf5,  0x6644c53b,  0xfb5b347e,
    0x438b7629, 0x23cbdcc6,  0xedb668fc,  0xe4b863f1,
    0x31d7cadc, 0x63421085,  0x97134022,  0xc6842011,
    0x4a857d24, 0xbbd2f83d,  0xf9ae1132,  0x29c76da1,
    0x9e1d4b2f, 0xb2dcf330,  0x860dec52,  0xc177d0e3,
    0xb32b6c16, 0x70a999b9,  0x9411fa48,  0xe9472264,
    0xfca8c48c, 0xf0a01a3f,  0x7d56d82c,  0x3322ef90,
    0x4987c74e, 0x38d9c1d1,  0xca8cfea2,  0xd498360b,
    0xf5a6cf81, 0x7aa528de,  0xb7da268e,  0xad3fa4bf,
    0x3a2ce49d, 0x78500d92,  0x5f6a9bcc,  0x7e546246,
    0x8df6c213, 0xd890e8b8,  0x392e5ef7,  0xc382f5af,
    0x5d9fbe80, 0xd0697c93,  0xd56fa92d,  0x25cfb312,
    0xacc83b99, 0x1810a77d,  0x9ce86e63,  0x3bdb7bbb,
    0x26cd0978, 0x596ef418,  0x9aec01b7,  0x4f83a89a,
    0x95e6656e, 0xffaa7ee6,  0xbc2108cf,  0x15efe6e8,
    0xe7bad99b, 0x6f4ace36,  0x9fead409,  0xb029d67c,
    0xa431afb2, 0x3f2a3123,  0xa5c63094,  0xa235c066,
    0x4e7437bc, 0x82fca6ca,  0x90e0b0d0,  0xa73315d8,
    0x4f14a98,  0xec41f7da,  0xcd7f0e50,  0x91172ff6,
    0x4d768dd6, 0xef434db0,  0xaacc544d,  0x96e4df04,
    0xd19ee3b5, 0x6a4c1b88,  0x2cc1b81f,  0x65467f51,
    0x5e9d04ea, 0x8c015d35,  0x87fa7374,  0xbfb2e41,
    0x67b35a1d, 0xdb9252d2,  0x10e93356,  0xd66d1347,
    0xd79a8c61, 0xa1377a0c,  0xf8598e14,  0x13eb893c,
    0xa9ceee27, 0x61b735c9,  0x1ce1ede5,  0x477a3cb1,
    0xd29c59df, 0xf2553f73,  0x141879ce,  0xc773bf37,
    0xf753eacd, 0xfd5f5baa,  0x3ddf146f,  0x447886db,
    0xafca81f3, 0x68b93ec4,  0x24382c34,  0xa3c25f40,
    0x1d1672c3, 0xe2bc0c25,  0x3c288b49,  0xdff4195,
    0xa8397101, 0xc08deb3,   0xb4d89ce4,  0x566490c1,
    0xcb7b6184, 0x32d570b6,  0x6c48745c,  0xb8d04257,
};
/* clang-format on */

/* clang-format off */
static const uint32_t U3[256] = {
    0x5150a7f4, 0x7e536541,  0x1ac3a417,  0x3a965e27,
    0x3bcb6bab, 0x1ff1459d,  0xacab58fa,  0x4b9303e3,
    0x2055fa30, 0xadf66d76,  0x889176cc,  0xf5254c02,
    0x4ffcd7e5, 0xc5d7cb2a,  0x26804435,  0xb58fa362,
    0xde495ab1, 0x25671bba,  0x45980eea,  0x5de1c0fe,
    0xc302752f, 0x8112f04c,  0x8da39746,  0x6bc6f9d3,
    0x3e75f8f,  0x15959c92,  0xbfeb7a6d,  0x95da5952,
    0xd42d83be, 0x58d32174,  0x492969e0,  0x8e44c8c9,
    0x756a89c2, 0xf478798e,  0x996b3e58,  0x27dd71b9,
    0xbeb64fe1, 0xf017ad88,  0xc966ac20,  0x7db43ace,
    0x63184adf, 0xe582311a,  0x97603351,  0x62457f53,
    0xb1e07764, 0xbb84ae6b,  0xfe1ca081,  0xf9942b08,
    0x70586848, 0x8f19fd45,  0x94876cde,  0x52b7f87b,
    0xab23d373, 0x72e2024b,  0xe3578f1f,  0x662aab55,
    0xb20728eb, 0x2f03c2b5,  0x869a7bc5,  0xd3a50837,
    0x30f28728, 0x23b2a5bf,  0x2ba6a03,   0xed5c8216,
    0x8a2b1ccf, 0xa792b479,  0xf3f0f207,  0x4ea1e269,
    0x65cdf4da, 0x6d5be05,   0xd11f6234,  0xc48afea6,
    0x349d532e, 0xa2a055f3,  0x532e18a,   0xa475ebf6,
    0xb39ec83,  0x40aaef60,  0x5e069f71,  0xbd51106e,
    0x3ef98a21, 0x963d06dd,  0xddae053e,  0x4d46bde6,
    0x91b58d54, 0x71055dc4,  0x46fd406,   0x60ff1550,
    0x1924fb98, 0xd697e9bd,  0x89cc4340,  0x67779ed9,
    0xb0bd42e8, 0x7888b89,   0xe7385b19,  0x79dbeec8,
    0xa1470a7c, 0x7ce90f42,  0xf8c91e84,  0x0,
    0x9838680,  0x3248ed2b,  0x1eac7011,  0x6c4e725a,
    0xfdfbff0e, 0xf563885,   0x3d1ed5ae,  0x3627392d,
    0xa64d90f,  0x6821a65c,  0x9bd1545b,  0x243a2e36,
    0xcb1670a,  0x930fe757,  0xb4d296ee,  0x1b9e919b,
    0x804fc5c0, 0x61a220dc,  0x5a694b77,  0x1c161a12,
    0xe20aba93, 0xc0e52aa0,  0x3c43e022,  0x121d171b,
    0xe0b0d09,  0xf2adc78b,  0x2db9a8b6,  0x14c8a91e,
    0x578519f1, 0xaf4c0775,  0xeebbdd99,  0xa3fd607f,
    0xf79f2601, 0x5cbcf572,  0x44c53b66,  0x5b347efb,
    0x8b762943, 0xcbdcc623,  0xb668fced,  0xb863f1e4,
    0xd7cadc31, 0x42108563,  0x13402297,  0x842011c6,
    0x857d244a, 0xd2f83dbb,  0xae1132f9,  0xc76da129,
    0x1d4b2f9e, 0xdcf330b2,  0xdec5286,   0x77d0e3c1,
    0x2b6c16b3, 0xa999b970,  0x11fa4894,  0x472264e9,
    0xa8c48cfc, 0xa01a3ff0,  0x56d82c7d,  0x22ef9033,
    0x87c74e49, 0xd9c1d138,  0x8cfea2ca,  0x98360bd4,
    0xa6cf81f5, 0xa528de7a,  0xda268eb7,  0x3fa4bfad,
    0x2ce49d3a, 0x500d9278,  0x6a9bcc5f,  0x5462467e,
    0xf6c2138d, 0x90e8b8d8,  0x2e5ef739,  0x82f5afc3,
    0x9fbe805d, 0x697c93d0,  0x6fa92dd5,  0xcfb31225,
    0xc83b99ac, 0x10a77d18,  0xe86e639c,  0xdb7bbb3b,
    0xcd097826, 0x6ef41859,  0xec01b79a,  0x83a89a4f,
    0xe6656e95, 0xaa7ee6ff,  0x2108cfbc,  0xefe6e815,
    0xbad99be7, 0x4ace366f,  0xead4099f,  0x29d67cb0,
    0x31afb2a4, 0x2a31233f,  0xc63094a5,  0x35c066a2,
    0x7437bc4e, 0xfca6ca82,  0xe0b0d090,  0x3315d8a7,
    0xf14a9804, 0x41f7daec,  0x7f0e50cd,  0x172ff691,
    0x768dd64d, 0x434db0ef,  0xcc544daa,  0xe4df0496,
    0x9ee3b5d1, 0x4c1b886a,  0xc1b81f2c,  0x467f5165,
    0x9d04ea5e, 0x15d358c,   0xfa737487,  0xfb2e410b,
    0xb35a1d67, 0x9252d2db,  0xe9335610,  0x6d1347d6,
    0x9a8c61d7, 0x377a0ca1,  0x598e14f8,  0xeb893c13,
    0xceee27a9, 0xb735c961,  0xe1ede51c,  0x7a3cb147,
    0x9c59dfd2, 0x553f73f2,  0x1879ce14,  0x73bf37c7,
    0x53eacdf7, 0x5f5baafd,  0xdf146f3d,  0x7886db44,
    0xca81f3af, 0xb93ec468,  0x382c3424,  0xc25f40a3,
    0x1672c31d, 0xbc0c25e2,  0x288b493c,  0xff41950d,
    0x397101a8, 0x8deb30c,   0xd89ce4b4,  0x6490c156,
    0x7b6184cb, 0xd570b632,  0x48745c6c,  0xd04257b8,
};
/* clang-format on */

#else /* assume big endian */
/* clang-format off */
static const uint32_t T0[256] = {
    0xc66363a5, 0xf87c7c84,  0xee777799,  0xf67b7b8d,
    0xfff2f20d, 0xd66b6bbd,  0xde6f6fb1,  0x91c5c554,
    0x60303050, 0x2010103,   0xce6767a9,  0x562b2b7d,
    0xe7fefe19, 0xb5d7d762,  0x4dababe6,  0xec76769a,
    0x8fcaca45, 0x1f82829d,  0x89c9c940,  0xfa7d7d87,
    0xeffafa15, 0xb25959eb,  0x8e4747c9,  0xfbf0f00b,
    0x41adadec, 0xb3d4d467,  0x5fa2a2fd,  0x45afafea,
    0x239c9cbf, 0x53a4a4f7,  0xe4727296,  0x9bc0c05b,
    0x75b7b7c2, 0xe1fdfd1c,  0x3d9393ae,  0x4c26266a,
    0x6c36365a, 0x7e3f3f41,  0xf5f7f702,  0x83cccc4f,
    0x6834345c, 0x51a5a5f4,  0xd1e5e534,  0xf9f1f108,
    0xe2717193, 0xabd8d873,  0x62313153,  0x2a15153f,
    0x804040c,  0x95c7c752,  0x46232365,  0x9dc3c35e,
    0x30181828, 0x379696a1,  0xa05050f,   0x2f9a9ab5,
    0xe070709,  0x24121236,  0x1b80809b,  0xdfe2e23d,
    0xcdebeb26, 0x4e272769,  0x7fb2b2cd,  0xea75759f,
    0x1209091b, 0x1d83839e,  0x582c2c74,  0x341a1a2e,
    0x361b1b2d, 0xdc6e6eb2,  0xb45a5aee,  0x5ba0a0fb,
    0xa45252f6, 0x763b3b4d,  0xb7d6d661,  0x7db3b3ce,
    0x5229297b, 0xdde3e33e,  0x5e2f2f71,  0x13848497,
    0xa65353f5, 0xb9d1d168,  0x0,         0xc1eded2c,
    0x40202060, 0xe3fcfc1f,  0x79b1b1c8,  0xb65b5bed,
    0xd46a6abe, 0x8dcbcb46,  0x67bebed9,  0x7239394b,
    0x944a4ade, 0x984c4cd4,  0xb05858e8,  0x85cfcf4a,
    0xbbd0d06b, 0xc5efef2a,  0x4faaaae5,  0xedfbfb16,
    0x864343c5, 0x9a4d4dd7,  0x66333355,  0x11858594,
    0x8a4545cf, 0xe9f9f910,  0x4020206,   0xfe7f7f81,
    0xa05050f0, 0x783c3c44,  0x259f9fba,  0x4ba8a8e3,
    0xa25151f3, 0x5da3a3fe,  0x804040c0,  0x58f8f8a,
    0x3f9292ad, 0x219d9dbc,  0x70383848,  0xf1f5f504,
    0x63bcbcdf, 0x77b6b6c1,  0xafdada75,  0x42212163,
    0x20101030, 0xe5ffff1a,  0xfdf3f30e,  0xbfd2d26d,
    0x81cdcd4c, 0x180c0c14,  0x26131335,  0xc3ecec2f,
    0xbe5f5fe1, 0x359797a2,  0x884444cc,  0x2e171739,
    0x93c4c457, 0x55a7a7f2,  0xfc7e7e82,  0x7a3d3d47,
    0xc86464ac, 0xba5d5de7,  0x3219192b,  0xe6737395,
    0xc06060a0, 0x19818198,  0x9e4f4fd1,  0xa3dcdc7f,
    0x44222266, 0x542a2a7e,  0x3b9090ab,  0xb888883,
    0x8c4646ca, 0xc7eeee29,  0x6bb8b8d3,  0x2814143c,
    0xa7dede79, 0xbc5e5ee2,  0x160b0b1d,  0xaddbdb76,
    0xdbe0e03b, 0x64323256,  0x743a3a4e,  0x140a0a1e,
    0x924949db, 0xc06060a,   0x4824246c,  0xb85c5ce4,
    0x9fc2c25d, 0xbdd3d36e,  0x43acacef,  0xc46262a6,
    0x399191a8, 0x319595a4,  0xd3e4e437,  0xf279798b,
    0xd5e7e732, 0x8bc8c843,  0x6e373759,  0xda6d6db7,
    0x18d8d8c,  0xb1d5d564,  0x9c4e4ed2,  0x49a9a9e0,
    0xd86c6cb4, 0xac5656fa,  0xf3f4f407,  0xcfeaea25,
    0xca6565af, 0xf47a7a8e,  0x47aeaee9,  0x10080818,
    0x6fbabad5, 0xf0787888,  0x4a25256f,  0x5c2e2e72,
    0x381c1c24, 0x57a6a6f1,  0x73b4b4c7,  0x97c6c651,
    0xcbe8e823, 0xa1dddd7c,  0xe874749c,  0x3e1f1f21,
    0x964b4bdd, 0x61bdbddc,  0xd8b8b86,   0xf8a8a85,
    0xe0707090, 0x7c3e3e42,  0x71b5b5c4,  0xcc6666aa,
    0x904848d8, 0x6030305,   0xf7f6f601,  0x1c0e0e12,
    0xc26161a3, 0x6a35355f,  0xae5757f9,  0x69b9b9d0,
    0x17868691, 0x99c1c158,  0x3a1d1d27,  0x279e9eb9,
    0xd9e1e138, 0xebf8f813,  0x2b9898b3,  0x22111133,
    0xd26969bb, 0xa9d9d970,  0x78e8e89,   0x339494a7,
    0x2d9b9bb6, 0x3c1e1e22,  0x15878792,  0xc9e9e920,
    0x87cece49, 0xaa5555ff,  0x50282878,  0xa5dfdf7a,
    0x38c8c8f,  0x59a1a1f8,  0x9898980,   0x1a0d0d17,
    0x65bfbfda, 0xd7e6e631,  0x844242c6,  0xd06868b8,
    0x824141c3, 0x299999b0,  0x5a2d2d77,  0x1e0f0f11,
    0x7bb0b0cb, 0xa85454fc,  0x6dbbbbd6,  0x2c16163a,
};
/* clang-format on */

/* clang-format off */
static const uint32_t T1[256] = {
    0xa5c66363, 0x84f87c7c,  0x99ee7777,  0x8df67b7b,
    0xdfff2f2,  0xbdd66b6b,  0xb1de6f6f,  0x5491c5c5,
    0x50603030, 0x3020101,   0xa9ce6767,  0x7d562b2b,
    0x19e7fefe, 0x62b5d7d7,  0xe64dabab,  0x9aec7676,
    0x458fcaca, 0x9d1f8282,  0x4089c9c9,  0x87fa7d7d,
    0x15effafa, 0xebb25959,  0xc98e4747,  0xbfbf0f0,
    0xec41adad, 0x67b3d4d4,  0xfd5fa2a2,  0xea45afaf,
    0xbf239c9c, 0xf753a4a4,  0x96e47272,  0x5b9bc0c0,
    0xc275b7b7, 0x1ce1fdfd,  0xae3d9393,  0x6a4c2626,
    0x5a6c3636, 0x417e3f3f,  0x2f5f7f7,   0x4f83cccc,
    0x5c683434, 0xf451a5a5,  0x34d1e5e5,  0x8f9f1f1,
    0x93e27171, 0x73abd8d8,  0x53623131,  0x3f2a1515,
    0xc080404,  0x5295c7c7,  0x65462323,  0x5e9dc3c3,
    0x28301818, 0xa1379696,  0xf0a0505,   0xb52f9a9a,
    0x90e0707,  0x36241212,  0x9b1b8080,  0x3ddfe2e2,
    0x26cdebeb, 0x694e2727,  0xcd7fb2b2,  0x9fea7575,
    0x1b120909, 0x9e1d8383,  0x74582c2c,  0x2e341a1a,
    0x2d361b1b, 0xb2dc6e6e,  0xeeb45a5a,  0xfb5ba0a0,
    0xf6a45252, 0x4d763b3b,  0x61b7d6d6,  0xce7db3b3,
    0x7b522929, 0x3edde3e3,  0x715e2f2f,  0x97138484,
    0xf5a65353, 0x68b9d1d1,  0x0,         0x2cc1eded,
    0x60402020, 0x1fe3fcfc,  0xc879b1b1,  0xedb65b5b,
    0xbed46a6a, 0x468dcbcb,  0xd967bebe,  0x4b723939,
    0xde944a4a, 0xd4984c4c,  0xe8b05858,  0x4a85cfcf,
    0x6bbbd0d0, 0x2ac5efef,  0xe54faaaa,  0x16edfbfb,
    0xc5864343, 0xd79a4d4d,  0x55663333,  0x94118585,
    0xcf8a4545, 0x10e9f9f9,  0x6040202,   0x81fe7f7f,
    0xf0a05050, 0x44783c3c,  0xba259f9f,  0xe34ba8a8,
    0xf3a25151, 0xfe5da3a3,  0xc0804040,  0x8a058f8f,
    0xad3f9292, 0xbc219d9d,  0x48703838,  0x4f1f5f5,
    0xdf63bcbc, 0xc177b6b6,  0x75afdada,  0x63422121,
    0x30201010, 0x1ae5ffff,  0xefdf3f3,   0x6dbfd2d2,
    0x4c81cdcd, 0x14180c0c,  0x35261313,  0x2fc3ecec,
    0xe1be5f5f, 0xa2359797,  0xcc884444,  0x392e1717,
    0x5793c4c4, 0xf255a7a7,  0x82fc7e7e,  0x477a3d3d,
    0xacc86464, 0xe7ba5d5d,  0x2b321919,  0x95e67373,
    0xa0c06060, 0x98198181,  0xd19e4f4f,  0x7fa3dcdc,
    0x66442222, 0x7e542a2a,  0xab3b9090,  0x830b8888,
    0xca8c4646, 0x29c7eeee,  0xd36bb8b8,  0x3c281414,
    0x79a7dede, 0xe2bc5e5e,  0x1d160b0b,  0x76addbdb,
    0x3bdbe0e0, 0x56643232,  0x4e743a3a,  0x1e140a0a,
    0xdb924949, 0xa0c0606,   0x6c482424,  0xe4b85c5c,
    0x5d9fc2c2, 0x6ebdd3d3,  0xef43acac,  0xa6c46262,
    0xa8399191, 0xa4319595,  0x37d3e4e4,  0x8bf27979,
    0x32d5e7e7, 0x438bc8c8,  0x596e3737,  0xb7da6d6d,
    0x8c018d8d, 0x64b1d5d5,  0xd29c4e4e,  0xe049a9a9,
    0xb4d86c6c, 0xfaac5656,  0x7f3f4f4,   0x25cfeaea,
    0xafca6565, 0x8ef47a7a,  0xe947aeae,  0x18100808,
    0xd56fbaba, 0x88f07878,  0x6f4a2525,  0x725c2e2e,
    0x24381c1c, 0xf157a6a6,  0xc773b4b4,  0x5197c6c6,
    0x23cbe8e8, 0x7ca1dddd,  0x9ce87474,  0x213e1f1f,
    0xdd964b4b, 0xdc61bdbd,  0x860d8b8b,  0x850f8a8a,
    0x90e07070, 0x427c3e3e,  0xc471b5b5,  0xaacc6666,
    0xd8904848, 0x5060303,   0x1f7f6f6,   0x121c0e0e,
    0xa3c26161, 0x5f6a3535,  0xf9ae5757,  0xd069b9b9,
    0x91178686, 0x5899c1c1,  0x273a1d1d,  0xb9279e9e,
    0x38d9e1e1, 0x13ebf8f8,  0xb32b9898,  0x33221111,
    0xbbd26969, 0x70a9d9d9,  0x89078e8e,  0xa7339494,
    0xb62d9b9b, 0x223c1e1e,  0x92158787,  0x20c9e9e9,
    0x4987cece, 0xffaa5555,  0x78502828,  0x7aa5dfdf,
    0x8f038c8c, 0xf859a1a1,  0x80098989,  0x171a0d0d,
    0xda65bfbf, 0x31d7e6e6,  0xc6844242,  0xb8d06868,
    0xc3824141, 0xb0299999,  0x775a2d2d,  0x111e0f0f,
    0xcb7bb0b0, 0xfca85454,  0xd66dbbbb,  0x3a2c1616,
};
/* clang-format on */

/* clang-format off */
static const uint32_t T2[256] = {
    0x63a5c663, 0x7c84f87c,  0x7799ee77,  0x7b8df67b,
    0xf20dfff2, 0x6bbdd66b,  0x6fb1de6f,  0xc55491c5,
    0x30506030, 0x1030201,   0x67a9ce67,  0x2b7d562b,
    0xfe19e7fe, 0xd762b5d7,  0xabe64dab,  0x769aec76,
    0xca458fca, 0x829d1f82,  0xc94089c9,  0x7d87fa7d,
    0xfa15effa, 0x59ebb259,  0x47c98e47,  0xf00bfbf0,
    0xadec41ad, 0xd467b3d4,  0xa2fd5fa2,  0xafea45af,
    0x9cbf239c, 0xa4f753a4,  0x7296e472,  0xc05b9bc0,
    0xb7c275b7, 0xfd1ce1fd,  0x93ae3d93,  0x266a4c26,
    0x365a6c36, 0x3f417e3f,  0xf702f5f7,  0xcc4f83cc,
    0x345c6834, 0xa5f451a5,  0xe534d1e5,  0xf108f9f1,
    0x7193e271, 0xd873abd8,  0x31536231,  0x153f2a15,
    0x40c0804,  0xc75295c7,  0x23654623,  0xc35e9dc3,
    0x18283018, 0x96a13796,  0x50f0a05,   0x9ab52f9a,
    0x7090e07,  0x12362412,  0x809b1b80,  0xe23ddfe2,
    0xeb26cdeb, 0x27694e27,  0xb2cd7fb2,  0x759fea75,
    0x91b1209,  0x839e1d83,  0x2c74582c,  0x1a2e341a,
    0x1b2d361b, 0x6eb2dc6e,  0x5aeeb45a,  0xa0fb5ba0,
    0x52f6a452, 0x3b4d763b,  0xd661b7d6,  0xb3ce7db3,
    0x297b5229, 0xe33edde3,  0x2f715e2f,  0x84971384,
    0x53f5a653, 0xd168b9d1,  0x0,         0xed2cc1ed,
    0x20604020, 0xfc1fe3fc,  0xb1c879b1,  0x5bedb65b,
    0x6abed46a, 0xcb468dcb,  0xbed967be,  0x394b7239,
    0x4ade944a, 0x4cd4984c,  0x58e8b058,  0xcf4a85cf,
    0xd06bbbd0, 0xef2ac5ef,  0xaae54faa,  0xfb16edfb,
    0x43c58643, 0x4dd79a4d,  0x33556633,  0x85941185,
    0x45cf8a45, 0xf910e9f9,  0x2060402,   0x7f81fe7f,
    0x50f0a050, 0x3c44783c,  0x9fba259f,  0xa8e34ba8,
    0x51f3a251, 0xa3fe5da3,  0x40c08040,  0x8f8a058f,
    0x92ad3f92, 0x9dbc219d,  0x38487038,  0xf504f1f5,
    0xbcdf63bc, 0xb6c177b6,  0xda75afda,  0x21634221,
    0x10302010, 0xff1ae5ff,  0xf30efdf3,  0xd26dbfd2,
    0xcd4c81cd, 0xc14180c,   0x13352613,  0xec2fc3ec,
    0x5fe1be5f, 0x97a23597,  0x44cc8844,  0x17392e17,
    0xc45793c4, 0xa7f255a7,  0x7e82fc7e,  0x3d477a3d,
    0x64acc864, 0x5de7ba5d,  0x192b3219,  0x7395e673,
    0x60a0c060, 0x81981981,  0x4fd19e4f,  0xdc7fa3dc,
    0x22664422, 0x2a7e542a,  0x90ab3b90,  0x88830b88,
    0x46ca8c46, 0xee29c7ee,  0xb8d36bb8,  0x143c2814,
    0xde79a7de, 0x5ee2bc5e,  0xb1d160b,   0xdb76addb,
    0xe03bdbe0, 0x32566432,  0x3a4e743a,  0xa1e140a,
    0x49db9249, 0x60a0c06,   0x246c4824,  0x5ce4b85c,
    0xc25d9fc2, 0xd36ebdd3,  0xacef43ac,  0x62a6c462,
    0x91a83991, 0x95a43195,  0xe437d3e4,  0x798bf279,
    0xe732d5e7, 0xc8438bc8,  0x37596e37,  0x6db7da6d,
    0x8d8c018d, 0xd564b1d5,  0x4ed29c4e,  0xa9e049a9,
    0x6cb4d86c, 0x56faac56,  0xf407f3f4,  0xea25cfea,
    0x65afca65, 0x7a8ef47a,  0xaee947ae,  0x8181008,
    0xbad56fba, 0x7888f078,  0x256f4a25,  0x2e725c2e,
    0x1c24381c, 0xa6f157a6,  0xb4c773b4,  0xc65197c6,
    0xe823cbe8, 0xdd7ca1dd,  0x749ce874,  0x1f213e1f,
    0x4bdd964b, 0xbddc61bd,  0x8b860d8b,  0x8a850f8a,
    0x7090e070, 0x3e427c3e,  0xb5c471b5,  0x66aacc66,
    0x48d89048, 0x3050603,   0xf601f7f6,  0xe121c0e,
    0x61a3c261, 0x355f6a35,  0x57f9ae57,  0xb9d069b9,
    0x86911786, 0xc15899c1,  0x1d273a1d,  0x9eb9279e,
    0xe138d9e1, 0xf813ebf8,  0x98b32b98,  0x11332211,
    0x69bbd269, 0xd970a9d9,  0x8e89078e,  0x94a73394,
    0x9bb62d9b, 0x1e223c1e,  0x87921587,  0xe920c9e9,
    0xce4987ce, 0x55ffaa55,  0x28785028,  0xdf7aa5df,
    0x8c8f038c, 0xa1f859a1,  0x89800989,  0xd171a0d,
    0xbfda65bf, 0xe631d7e6,  0x42c68442,  0x68b8d068,
    0x41c38241, 0x99b02999,  0x2d775a2d,  0xf111e0f,
    0xb0cb7bb0, 0x54fca854,  0xbbd66dbb,  0x163a2c16,
};
/* clang-format on */

/* clang-format off */
static const uint32_t T3[256] = {
    0x6363a5c6, 0x7c7c84f8,  0x777799ee,  0x7b7b8df6,
    0xf2f20dff, 0x6b6bbdd6,  0x6f6fb1de,  0xc5c55491,
    0x30305060, 0x1010302,   0x6767a9ce,  0x2b2b7d56,
    0xfefe19e7, 0xd7d762b5,  0xababe64d,  0x76769aec,
    0xcaca458f, 0x82829d1f,  0xc9c94089,  0x7d7d87fa,
    0xfafa15ef, 0x5959ebb2,  0x4747c98e,  0xf0f00bfb,
    0xadadec41, 0xd4d467b3,  0xa2a2fd5f,  0xafafea45,
    0x9c9cbf23, 0xa4a4f753,  0x727296e4,  0xc0c05b9b,
    0xb7b7c275, 0xfdfd1ce1,  0x9393ae3d,  0x26266a4c,
    0x36365a6c, 0x3f3f417e,  0xf7f702f5,  0xcccc4f83,
    0x34345c68, 0xa5a5f451,  0xe5e534d1,  0xf1f108f9,
    0x717193e2, 0xd8d873ab,  0x31315362,  0x15153f2a,
    0x4040c08,  0xc7c75295,  0x23236546,  0xc3c35e9d,
    0x18182830, 0x9696a137,  0x5050f0a,   0x9a9ab52f,
    0x707090e,  0x12123624,  0x80809b1b,  0xe2e23ddf,
    0xebeb26cd, 0x2727694e,  0xb2b2cd7f,  0x75759fea,
    0x9091b12,  0x83839e1d,  0x2c2c7458,  0x1a1a2e34,
    0x1b1b2d36, 0x6e6eb2dc,  0x5a5aeeb4,  0xa0a0fb5b,
    0x5252f6a4, 0x3b3b4d76,  0xd6d661b7,  0xb3b3ce7d,
    0x29297b52, 0xe3e33edd,  0x2f2f715e,  0x84849713,
    0x5353f5a6, 0xd1d168b9,  0x0,         0xeded2cc1,
    0x20206040, 0xfcfc1fe3,  0xb1b1c879,  0x5b5bedb6,
    0x6a6abed4, 0xcbcb468d,  0xbebed967,  0x39394b72,
    0x4a4ade94, 0x4c4cd498,  0x5858e8b0,  0xcfcf4a85,
    0xd0d06bbb, 0xefef2ac5,  0xaaaae54f,  0xfbfb16ed,
    0x4343c586, 0x4d4dd79a,  0x33335566,  0x85859411,
    0x4545cf8a, 0xf9f910e9,  0x2020604,   0x7f7f81fe,
    0x5050f0a0, 0x3c3c4478,  0x9f9fba25,  0xa8a8e34b,
    0x5151f3a2, 0xa3a3fe5d,  0x4040c080,  0x8f8f8a05,
    0x9292ad3f, 0x9d9dbc21,  0x38384870,  0xf5f504f1,
    0xbcbcdf63, 0xb6b6c177,  0xdada75af,  0x21216342,
    0x10103020, 0xffff1ae5,  0xf3f30efd,  0xd2d26dbf,
    0xcdcd4c81, 0xc0c1418,   0x13133526,  0xecec2fc3,
    0x5f5fe1be, 0x9797a235,  0x4444cc88,  0x1717392e,
    0xc4c45793, 0xa7a7f255,  0x7e7e82fc,  0x3d3d477a,
    0x6464acc8, 0x5d5de7ba,  0x19192b32,  0x737395e6,
    0x6060a0c0, 0x81819819,  0x4f4fd19e,  0xdcdc7fa3,
    0x22226644, 0x2a2a7e54,  0x9090ab3b,  0x8888830b,
    0x4646ca8c, 0xeeee29c7,  0xb8b8d36b,  0x14143c28,
    0xdede79a7, 0x5e5ee2bc,  0xb0b1d16,   0xdbdb76ad,
    0xe0e03bdb, 0x32325664,  0x3a3a4e74,  0xa0a1e14,
    0x4949db92, 0x6060a0c,   0x24246c48,  0x5c5ce4b8,
    0xc2c25d9f, 0xd3d36ebd,  0xacacef43,  0x6262a6c4,
    0x9191a839, 0x9595a431,  0xe4e437d3,  0x79798bf2,
    0xe7e732d5, 0xc8c8438b,  0x3737596e,  0x6d6db7da,
    0x8d8d8c01, 0xd5d564b1,  0x4e4ed29c,  0xa9a9e049,
    0x6c6cb4d8, 0x5656faac,  0xf4f407f3,  0xeaea25cf,
    0x6565afca, 0x7a7a8ef4,  0xaeaee947,  0x8081810,
    0xbabad56f, 0x787888f0,  0x25256f4a,  0x2e2e725c,
    0x1c1c2438, 0xa6a6f157,  0xb4b4c773,  0xc6c65197,
    0xe8e823cb, 0xdddd7ca1,  0x74749ce8,  0x1f1f213e,
    0x4b4bdd96, 0xbdbddc61,  0x8b8b860d,  0x8a8a850f,
    0x707090e0, 0x3e3e427c,  0xb5b5c471,  0x6666aacc,
    0x4848d890, 0x3030506,   0xf6f601f7,  0xe0e121c,
    0x6161a3c2, 0x35355f6a,  0x5757f9ae,  0xb9b9d069,
    0x86869117, 0xc1c15899,  0x1d1d273a,  0x9e9eb927,
    0xe1e138d9, 0xf8f813eb,  0x9898b32b,  0x11113322,
    0x6969bbd2, 0xd9d970a9,  0x8e8e8907,  0x9494a733,
    0x9b9bb62d, 0x1e1e223c,  0x87879215,  0xe9e920c9,
    0xcece4987, 0x5555ffaa,  0x28287850,  0xdfdf7aa5,
    0x8c8c8f03, 0xa1a1f859,  0x89898009,  0xd0d171a,
    0xbfbfda65, 0xe6e631d7,  0x4242c684,  0x6868b8d0,
    0x4141c382, 0x9999b029,  0x2d2d775a,  0xf0f111e,
    0xb0b0cb7b, 0x5454fca8,  0xbbbbd66d,  0x16163a2c,
};
/* clang-format on */

/* clang-format off */
static const uint32_t U0[256] = {
    0x51f4a750, 0x7e416553,  0x1a17a4c3,  0x3a275e96,
    0x3bab6bcb, 0x1f9d45f1,  0xacfa58ab,  0x4be30393,
    0x2030fa55, 0xad766df6,  0x88cc7691,  0xf5024c25,
    0x4fe5d7fc, 0xc52acbd7,  0x26354480,  0xb562a38f,
    0xdeb15a49, 0x25ba1b67,  0x45ea0e98,  0x5dfec0e1,
    0xc32f7502, 0x814cf012,  0x8d4697a3,  0x6bd3f9c6,
    0x38f5fe7,  0x15929c95,  0xbf6d7aeb,  0x955259da,
    0xd4be832d, 0x587421d3,  0x49e06929,  0x8ec9c844,
    0x75c2896a, 0xf48e7978,  0x99583e6b,  0x27b971dd,
    0xbee14fb6, 0xf088ad17,  0xc920ac66,  0x7dce3ab4,
    0x63df4a18, 0xe51a3182,  0x97513360,  0x62537f45,
    0xb16477e0, 0xbb6bae84,  0xfe81a01c,  0xf9082b94,
    0x70486858, 0x8f45fd19,  0x94de6c87,  0x527bf8b7,
    0xab73d323, 0x724b02e2,  0xe31f8f57,  0x6655ab2a,
    0xb2eb2807, 0x2fb5c203,  0x86c57b9a,  0xd33708a5,
    0x302887f2, 0x23bfa5b2,  0x2036aba,   0xed16825c,
    0x8acf1c2b, 0xa779b492,  0xf307f2f0,  0x4e69e2a1,
    0x65daf4cd, 0x605bed5,   0xd134621f,  0xc4a6fe8a,
    0x342e539d, 0xa2f355a0,  0x58ae132,   0xa4f6eb75,
    0xb83ec39,  0x4060efaa,  0x5e719f06,  0xbd6e1051,
    0x3e218af9, 0x96dd063d,  0xdd3e05ae,  0x4de6bd46,
    0x91548db5, 0x71c45d05,  0x406d46f,   0x605015ff,
    0x1998fb24, 0xd6bde997,  0x894043cc,  0x67d99e77,
    0xb0e842bd, 0x7898b88,   0xe7195b38,  0x79c8eedb,
    0xa17c0a47, 0x7c420fe9,  0xf8841ec9,  0x0,
    0x9808683,  0x322bed48,  0x1e1170ac,  0x6c5a724e,
    0xfd0efffb, 0xf853856,   0x3daed51e,  0x362d3927,
    0xa0fd964,  0x685ca621,  0x9b5b54d1,  0x24362e3a,
    0xc0a67b1,  0x9357e70f,  0xb4ee96d2,  0x1b9b919e,
    0x80c0c54f, 0x61dc20a2,  0x5a774b69,  0x1c121a16,
    0xe293ba0a, 0xc0a02ae5,  0x3c22e043,  0x121b171d,
    0xe090d0b,  0xf28bc7ad,  0x2db6a8b9,  0x141ea9c8,
    0x57f11985, 0xaf75074c,  0xee99ddbb,  0xa37f60fd,
    0xf701269f, 0x5c72f5bc,  0x44663bc5,  0x5bfb7e34,
    0x8b432976, 0xcb23c6dc,  0xb6edfc68,  0xb8e4f163,
    0xd731dcca, 0x42638510,  0x13972240,  0x84c61120,
    0x854a247d, 0xd2bb3df8,  0xaef93211,  0xc729a16d,
    0x1d9e2f4b, 0xdcb230f3,  0xd8652ec,   0x77c1e3d0,
    0x2bb3166c, 0xa970b999,  0x119448fa,  0x47e96422,
    0xa8fc8cc4, 0xa0f03f1a,  0x567d2cd8,  0x223390ef,
    0x87494ec7, 0xd938d1c1,  0x8ccaa2fe,  0x98d40b36,
    0xa6f581cf, 0xa57ade28,  0xdab78e26,  0x3fadbfa4,
    0x2c3a9de4, 0x5078920d,  0x6a5fcc9b,  0x547e4662,
    0xf68d13c2, 0x90d8b8e8,  0x2e39f75e,  0x82c3aff5,
    0x9f5d80be, 0x69d0937c,  0x6fd52da9,  0xcf2512b3,
    0xc8ac993b, 0x10187da7,  0xe89c636e,  0xdb3bbb7b,
    0xcd267809, 0x6e5918f4,  0xec9ab701,  0x834f9aa8,
    0xe6956e65, 0xaaffe67e,  0x21bccf08,  0xef15e8e6,
    0xbae79bd9, 0x4a6f36ce,  0xea9f09d4,  0x29b07cd6,
    0x31a4b2af, 0x2a3f2331,  0xc6a59430,  0x35a266c0,
    0x744ebc37, 0xfc82caa6,  0xe090d0b0,  0x33a7d815,
    0xf104984a, 0x41ecdaf7,  0x7fcd500e,  0x1791f62f,
    0x764dd68d, 0x43efb04d,  0xccaa4d54,  0xe49604df,
    0x9ed1b5e3, 0x4c6a881b,  0xc12c1fb8,  0x4665517f,
    0x9d5eea04, 0x18c355d,   0xfa877473,  0xfb0b412e,
    0xb3671d5a, 0x92dbd252,  0xe9105633,  0x6dd64713,
    0x9ad7618c, 0x37a10c7a,  0x59f8148e,  0xeb133c89,
    0xcea927ee, 0xb761c935,  0xe11ce5ed,  0x7a47b13c,
    0x9cd2df59, 0x55f2733f,  0x1814ce79,  0x73c737bf,
    0x53f7cdea, 0x5ffdaa5b,  0xdf3d6f14,  0x7844db86,
    0xcaaff381, 0xb968c43e,  0x3824342c,  0xc2a3405f,
    0x161dc372, 0xbce2250c,  0x283c498b,  0xff0d9541,
    0x39a80171, 0x80cb3de,   0xd8b4e49c,  0x6456c190,
    0x7bcb8461, 0xd532b670,  0x486c5c74,  0xd0b85742
};
/* clang-format on */

/* clang-format off */
static const uint32_t U1[256] = {
    0x5051f4a7, 0x537e4165,  0xc31a17a4,  0x963a275e,
    0xcb3bab6b, 0xf11f9d45,  0xabacfa58,  0x934be303,
    0x552030fa, 0xf6ad766d,  0x9188cc76,  0x25f5024c,
    0xfc4fe5d7, 0xd7c52acb,  0x80263544,  0x8fb562a3,
    0x49deb15a, 0x6725ba1b,  0x9845ea0e,  0xe15dfec0,
    0x2c32f75,  0x12814cf0,  0xa38d4697,  0xc66bd3f9,
    0xe7038f5f, 0x9515929c,  0xebbf6d7a,  0xda955259,
    0x2dd4be83, 0xd3587421,  0x2949e069,  0x448ec9c8,
    0x6a75c289, 0x78f48e79,  0x6b99583e,  0xdd27b971,
    0xb6bee14f, 0x17f088ad,  0x66c920ac,  0xb47dce3a,
    0x1863df4a, 0x82e51a31,  0x60975133,  0x4562537f,
    0xe0b16477, 0x84bb6bae,  0x1cfe81a0,  0x94f9082b,
    0x58704868, 0x198f45fd,  0x8794de6c,  0xb7527bf8,
    0x23ab73d3, 0xe2724b02,  0x57e31f8f,  0x2a6655ab,
    0x7b2eb28,  0x32fb5c2,   0x9a86c57b,  0xa5d33708,
    0xf2302887, 0xb223bfa5,  0xba02036a,  0x5ced1682,
    0x2b8acf1c, 0x92a779b4,  0xf0f307f2,  0xa14e69e2,
    0xcd65daf4, 0xd50605be,  0x1fd13462,  0x8ac4a6fe,
    0x9d342e53, 0xa0a2f355,  0x32058ae1,  0x75a4f6eb,
    0x390b83ec, 0xaa4060ef,  0x65e719f,   0x51bd6e10,
    0xf93e218a, 0x3d96dd06,  0xaedd3e05,  0x464de6bd,
    0xb591548d, 0x571c45d,   0x6f0406d4,  0xff605015,
    0x241998fb, 0x97d6bde9,  0xcc894043,  0x7767d99e,
    0xbdb0e842, 0x8807898b,  0x38e7195b,  0xdb79c8ee,
    0x47a17c0a, 0xe97c420f,  0xc9f8841e,  0x0,
    0x83098086, 0x48322bed,  0xac1e1170,  0x4e6c5a72,
    0xfbfd0eff, 0x560f8538,  0x1e3daed5,  0x27362d39,
    0x640a0fd9, 0x21685ca6,  0xd19b5b54,  0x3a24362e,
    0xb10c0a67, 0xf9357e7,   0xd2b4ee96,  0x9e1b9b91,
    0x4f80c0c5, 0xa261dc20,  0x695a774b,  0x161c121a,
    0xae293ba,  0xe5c0a02a,  0x433c22e0,  0x1d121b17,
    0xb0e090d,  0xadf28bc7,  0xb92db6a8,  0xc8141ea9,
    0x8557f119, 0x4caf7507,  0xbbee99dd,  0xfda37f60,
    0x9ff70126, 0xbc5c72f5,  0xc544663b,  0x345bfb7e,
    0x768b4329, 0xdccb23c6,  0x68b6edfc,  0x63b8e4f1,
    0xcad731dc, 0x10426385,  0x40139722,  0x2084c611,
    0x7d854a24, 0xf8d2bb3d,  0x11aef932,  0x6dc729a1,
    0x4b1d9e2f, 0xf3dcb230,  0xec0d8652,  0xd077c1e3,
    0x6c2bb316, 0x99a970b9,  0xfa119448,  0x2247e964,
    0xc4a8fc8c, 0x1aa0f03f,  0xd8567d2c,  0xef223390,
    0xc787494e, 0xc1d938d1,  0xfe8ccaa2,  0x3698d40b,
    0xcfa6f581, 0x28a57ade,  0x26dab78e,  0xa43fadbf,
    0xe42c3a9d, 0xd507892,   0x9b6a5fcc,  0x62547e46,
    0xc2f68d13, 0xe890d8b8,  0x5e2e39f7,  0xf582c3af,
    0xbe9f5d80, 0x7c69d093,  0xa96fd52d,  0xb3cf2512,
    0x3bc8ac99, 0xa710187d,  0x6ee89c63,  0x7bdb3bbb,
    0x9cd2678,  0xf46e5918,  0x1ec9ab7,   0xa8834f9a,
    0x65e6956e, 0x7eaaffe6,  0x821bccf,   0xe6ef15e8,
    0xd9bae79b, 0xce4a6f36,  0xd4ea9f09,  0xd629b07c,
    0xaf31a4b2, 0x312a3f23,  0x30c6a594,  0xc035a266,
    0x37744ebc, 0xa6fc82ca,  0xb0e090d0,  0x1533a7d8,
    0x4af10498, 0xf741ecda,  0xe7fcd50,   0x2f1791f6,
    0x8d764dd6, 0x4d43efb0,  0x54ccaa4d,  0xdfe49604,
    0xe39ed1b5, 0x1b4c6a88,  0xb8c12c1f,  0x7f466551,
    0x49d5eea,  0x5d018c35,  0x73fa8774,  0x2efb0b41,
    0x5ab3671d, 0x5292dbd2,  0x33e91056,  0x136dd647,
    0x8c9ad761, 0x7a37a10c,  0x8e59f814,  0x89eb133c,
    0xeecea927, 0x35b761c9,  0xede11ce5,  0x3c7a47b1,
    0x599cd2df, 0x3f55f273,  0x791814ce,  0xbf73c737,
    0xea53f7cd, 0x5b5ffdaa,  0x14df3d6f,  0x867844db,
    0x81caaff3, 0x3eb968c4,  0x2c382434,  0x5fc2a340,
    0x72161dc3, 0xcbce225,   0x8b283c49,  0x41ff0d95,
    0x7139a801, 0xde080cb3,  0x9cd8b4e4,  0x906456c1,
    0x617bcb84, 0x70d532b6,  0x74486c5c,  0x42d0b857
};
/* clang-format on */

/* clang-format off */
static const uint32_t U2[256] = {
    0xa75051f4, 0x65537e41,  0xa4c31a17,  0x5e963a27,
    0x6bcb3bab, 0x45f11f9d,  0x58abacfa,  0x3934be3,
    0xfa552030, 0x6df6ad76,  0x769188cc,  0x4c25f502,
    0xd7fc4fe5, 0xcbd7c52a,  0x44802635,  0xa38fb562,
    0x5a49deb1, 0x1b6725ba,  0xe9845ea,   0xc0e15dfe,
    0x7502c32f, 0xf012814c,  0x97a38d46,  0xf9c66bd3,
    0x5fe7038f, 0x9c951592,  0x7aebbf6d,  0x59da9552,
    0x832dd4be, 0x21d35874,  0x692949e0,  0xc8448ec9,
    0x896a75c2, 0x7978f48e,  0x3e6b9958,  0x71dd27b9,
    0x4fb6bee1, 0xad17f088,  0xac66c920,  0x3ab47dce,
    0x4a1863df, 0x3182e51a,  0x33609751,  0x7f456253,
    0x77e0b164, 0xae84bb6b,  0xa01cfe81,  0x2b94f908,
    0x68587048, 0xfd198f45,  0x6c8794de,  0xf8b7527b,
    0xd323ab73, 0x2e2724b,   0x8f57e31f,  0xab2a6655,
    0x2807b2eb, 0xc2032fb5,  0x7b9a86c5,  0x8a5d337,
    0x87f23028, 0xa5b223bf,  0x6aba0203,  0x825ced16,
    0x1c2b8acf, 0xb492a779,  0xf2f0f307,  0xe2a14e69,
    0xf4cd65da, 0xbed50605,  0x621fd134,  0xfe8ac4a6,
    0x539d342e, 0x55a0a2f3,  0xe132058a,  0xeb75a4f6,
    0xec390b83, 0xefaa4060,  0x9f065e71,  0x1051bd6e,
    0x8af93e21, 0x63d96dd,   0x5aedd3e,   0xbd464de6,
    0x8db59154, 0x5d0571c4,  0xd46f0406,  0x15ff6050,
    0xfb241998, 0xe997d6bd,  0x43cc8940,  0x9e7767d9,
    0x42bdb0e8, 0x8b880789,  0x5b38e719,  0xeedb79c8,
    0xa47a17c,  0xfe97c42,   0x1ec9f884,  0x0,
    0x86830980, 0xed48322b,  0x70ac1e11,  0x724e6c5a,
    0xfffbfd0e, 0x38560f85,  0xd51e3dae,  0x3927362d,
    0xd9640a0f, 0xa621685c,  0x54d19b5b,  0x2e3a2436,
    0x67b10c0a, 0xe70f9357,  0x96d2b4ee,  0x919e1b9b,
    0xc54f80c0, 0x20a261dc,  0x4b695a77,  0x1a161c12,
    0xba0ae293, 0x2ae5c0a0,  0xe0433c22,  0x171d121b,
    0xd0b0e09,  0xc7adf28b,  0xa8b92db6,  0xa9c8141e,
    0x198557f1, 0x74caf75,   0xddbbee99,  0x60fda37f,
    0x269ff701, 0xf5bc5c72,  0x3bc54466,  0x7e345bfb,
    0x29768b43, 0xc6dccb23,  0xfc68b6ed,  0xf163b8e4,
    0xdccad731, 0x85104263,  0x22401397,  0x112084c6,
    0x247d854a, 0x3df8d2bb,  0x3211aef9,  0xa16dc729,
    0x2f4b1d9e, 0x30f3dcb2,  0x52ec0d86,  0xe3d077c1,
    0x166c2bb3, 0xb999a970,  0x48fa1194,  0x642247e9,
    0x8cc4a8fc, 0x3f1aa0f0,  0x2cd8567d,  0x90ef2233,
    0x4ec78749, 0xd1c1d938,  0xa2fe8cca,  0xb3698d4,
    0x81cfa6f5, 0xde28a57a,  0x8e26dab7,  0xbfa43fad,
    0x9de42c3a, 0x920d5078,  0xcc9b6a5f,  0x4662547e,
    0x13c2f68d, 0xb8e890d8,  0xf75e2e39,  0xaff582c3,
    0x80be9f5d, 0x937c69d0,  0x2da96fd5,  0x12b3cf25,
    0x993bc8ac, 0x7da71018,  0x636ee89c,  0xbb7bdb3b,
    0x7809cd26, 0x18f46e59,  0xb701ec9a,  0x9aa8834f,
    0x6e65e695, 0xe67eaaff,  0xcf0821bc,  0xe8e6ef15,
    0x9bd9bae7, 0x36ce4a6f,  0x9d4ea9f,   0x7cd629b0,
    0xb2af31a4, 0x23312a3f,  0x9430c6a5,  0x66c035a2,
    0xbc37744e, 0xcaa6fc82,  0xd0b0e090,  0xd81533a7,
    0x984af104, 0xdaf741ec,  0x500e7fcd,  0xf62f1791,
    0xd68d764d, 0xb04d43ef,  0x4d54ccaa,  0x4dfe496,
    0xb5e39ed1, 0x881b4c6a,  0x1fb8c12c,  0x517f4665,
    0xea049d5e, 0x355d018c,  0x7473fa87,  0x412efb0b,
    0x1d5ab367, 0xd25292db,  0x5633e910,  0x47136dd6,
    0x618c9ad7, 0xc7a37a1,   0x148e59f8,  0x3c89eb13,
    0x27eecea9, 0xc935b761,  0xe5ede11c,  0xb13c7a47,
    0xdf599cd2, 0x733f55f2,  0xce791814,  0x37bf73c7,
    0xcdea53f7, 0xaa5b5ffd,  0x6f14df3d,  0xdb867844,
    0xf381caaf, 0xc43eb968,  0x342c3824,  0x405fc2a3,
    0xc372161d, 0x250cbce2,  0x498b283c,  0x9541ff0d,
    0x17139a8,  0xb3de080c,  0xe49cd8b4,  0xc1906456,
    0x84617bcb, 0xb670d532,  0x5c74486c,  0x5742d0b8
};
/* clang-format on */

/* clang-format off */
static const uint32_t U3[256] = {
    0xf4a75051, 0x4165537e,  0x17a4c31a,  0x275e963a,
    0xab6bcb3b, 0x9d45f11f,  0xfa58abac,  0xe303934b,
    0x30fa5520, 0x766df6ad,  0xcc769188,  0x24c25f5,
    0xe5d7fc4f, 0x2acbd7c5,  0x35448026,  0x62a38fb5,
    0xb15a49de, 0xba1b6725,  0xea0e9845,  0xfec0e15d,
    0x2f7502c3, 0x4cf01281,  0x4697a38d,  0xd3f9c66b,
    0x8f5fe703, 0x929c9515,  0x6d7aebbf,  0x5259da95,
    0xbe832dd4, 0x7421d358,  0xe0692949,  0xc9c8448e,
    0xc2896a75, 0x8e7978f4,  0x583e6b99,  0xb971dd27,
    0xe14fb6be, 0x88ad17f0,  0x20ac66c9,  0xce3ab47d,
    0xdf4a1863, 0x1a3182e5,  0x51336097,  0x537f4562,
    0x6477e0b1, 0x6bae84bb,  0x81a01cfe,  0x82b94f9,
    0x48685870, 0x45fd198f,  0xde6c8794,  0x7bf8b752,
    0x73d323ab, 0x4b02e272,  0x1f8f57e3,  0x55ab2a66,
    0xeb2807b2, 0xb5c2032f,  0xc57b9a86,  0x3708a5d3,
    0x2887f230, 0xbfa5b223,  0x36aba02,   0x16825ced,
    0xcf1c2b8a, 0x79b492a7,  0x7f2f0f3,   0x69e2a14e,
    0xdaf4cd65, 0x5bed506,   0x34621fd1,  0xa6fe8ac4,
    0x2e539d34, 0xf355a0a2,  0x8ae13205,  0xf6eb75a4,
    0x83ec390b, 0x60efaa40,  0x719f065e,  0x6e1051bd,
    0x218af93e, 0xdd063d96,  0x3e05aedd,  0xe6bd464d,
    0x548db591, 0xc45d0571,  0x6d46f04,   0x5015ff60,
    0x98fb2419, 0xbde997d6,  0x4043cc89,  0xd99e7767,
    0xe842bdb0, 0x898b8807,  0x195b38e7,  0xc8eedb79,
    0x7c0a47a1, 0x420fe97c,  0x841ec9f8,  0x0,
    0x80868309, 0x2bed4832,  0x1170ac1e,  0x5a724e6c,
    0xefffbfd,  0x8538560f,  0xaed51e3d,  0x2d392736,
    0xfd9640a,  0x5ca62168,  0x5b54d19b,  0x362e3a24,
    0xa67b10c,  0x57e70f93,  0xee96d2b4,  0x9b919e1b,
    0xc0c54f80, 0xdc20a261,  0x774b695a,  0x121a161c,
    0x93ba0ae2, 0xa02ae5c0,  0x22e0433c,  0x1b171d12,
    0x90d0b0e,  0x8bc7adf2,  0xb6a8b92d,  0x1ea9c814,
    0xf1198557, 0x75074caf,  0x99ddbbee,  0x7f60fda3,
    0x1269ff7,  0x72f5bc5c,  0x663bc544,  0xfb7e345b,
    0x4329768b, 0x23c6dccb,  0xedfc68b6,  0xe4f163b8,
    0x31dccad7, 0x63851042,  0x97224013,  0xc6112084,
    0x4a247d85, 0xbb3df8d2,  0xf93211ae,  0x29a16dc7,
    0x9e2f4b1d, 0xb230f3dc,  0x8652ec0d,  0xc1e3d077,
    0xb3166c2b, 0x70b999a9,  0x9448fa11,  0xe9642247,
    0xfc8cc4a8, 0xf03f1aa0,  0x7d2cd856,  0x3390ef22,
    0x494ec787, 0x38d1c1d9,  0xcaa2fe8c,  0xd40b3698,
    0xf581cfa6, 0x7ade28a5,  0xb78e26da,  0xadbfa43f,
    0x3a9de42c, 0x78920d50,  0x5fcc9b6a,  0x7e466254,
    0x8d13c2f6, 0xd8b8e890,  0x39f75e2e,  0xc3aff582,
    0x5d80be9f, 0xd0937c69,  0xd52da96f,  0x2512b3cf,
    0xac993bc8, 0x187da710,  0x9c636ee8,  0x3bbb7bdb,
    0x267809cd, 0x5918f46e,  0x9ab701ec,  0x4f9aa883,
    0x956e65e6, 0xffe67eaa,  0xbccf0821,  0x15e8e6ef,
    0xe79bd9ba, 0x6f36ce4a,  0x9f09d4ea,  0xb07cd629,
    0xa4b2af31, 0x3f23312a,  0xa59430c6,  0xa266c035,
    0x4ebc3774, 0x82caa6fc,  0x90d0b0e0,  0xa7d81533,
    0x4984af1,  0xecdaf741,  0xcd500e7f,  0x91f62f17,
    0x4dd68d76, 0xefb04d43,  0xaa4d54cc,  0x9604dfe4,
    0xd1b5e39e, 0x6a881b4c,  0x2c1fb8c1,  0x65517f46,
    0x5eea049d, 0x8c355d01,  0x877473fa,  0xb412efb,
    0x671d5ab3, 0xdbd25292,  0x105633e9,  0xd647136d,
    0xd7618c9a, 0xa10c7a37,  0xf8148e59,  0x133c89eb,
    0xa927eece, 0x61c935b7,  0x1ce5ede1,  0x47b13c7a,
    0xd2df599c, 0xf2733f55,  0x14ce7918,  0xc737bf73,
    0xf7cdea53, 0xfdaa5b5f,  0x3d6f14df,  0x44db8678,
    0xaff381ca, 0x68c43eb9,  0x24342c38,  0xa3405fc2,
    0x1dc37216, 0xe2250cbc,  0x3c498b28,  0xd9541ff,
    0xa8017139, 0xcb3de08,   0xb4e49cd8,  0x56c19064,
    0xcb84617b, 0x32b670d5,  0x6c5c7448,  0xb85742d0
};
/* clang-format on */
#endif

/*
 * the following tables (aes_sbox, aes_inv_sbox, T4, U4) are
 * endian-neutral
 */
/* clang-format off */
static const uint8_t aes_sbox[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
};
/* clang-format on */

#ifndef CPU_RISC
/* clang-format off */
static const uint8_t aes_inv_sbox[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
};
/* clang-format on */
#endif /* ! CPU_RISC */

#ifdef CPU_RISC
/* clang-format off */
static const uint32_t T4[256] = {
    0x63636363, 0x7c7c7c7c, 0x77777777, 0x7b7b7b7b,
    0xf2f2f2f2, 0x6b6b6b6b, 0x6f6f6f6f, 0xc5c5c5c5,
    0x30303030, 0x01010101, 0x67676767, 0x2b2b2b2b,
    0xfefefefe, 0xd7d7d7d7, 0xabababab, 0x76767676,
    0xcacacaca, 0x82828282, 0xc9c9c9c9, 0x7d7d7d7d,
    0xfafafafa, 0x59595959, 0x47474747, 0xf0f0f0f0,
    0xadadadad, 0xd4d4d4d4, 0xa2a2a2a2, 0xafafafaf,
    0x9c9c9c9c, 0xa4a4a4a4, 0x72727272, 0xc0c0c0c0,
    0xb7b7b7b7, 0xfdfdfdfd, 0x93939393, 0x26262626,
    0x36363636, 0x3f3f3f3f, 0xf7f7f7f7, 0xcccccccc,
    0x34343434, 0xa5a5a5a5, 0xe5e5e5e5, 0xf1f1f1f1,
    0x71717171, 0xd8d8d8d8, 0x31313131, 0x15151515,
    0x04040404, 0xc7c7c7c7, 0x23232323, 0xc3c3c3c3,
    0x18181818, 0x96969696, 0x05050505, 0x9a9a9a9a,
    0x07070707, 0x12121212, 0x80808080, 0xe2e2e2e2,
    0xebebebeb, 0x27272727, 0xb2b2b2b2, 0x75757575,
    0x09090909, 0x83838383, 0x2c2c2c2c, 0x1a1a1a1a,
    0x1b1b1b1b, 0x6e6e6e6e, 0x5a5a5a5a, 0xa0a0a0a0,
    0x52525252, 0x3b3b3b3b, 0xd6d6d6d6, 0xb3b3b3b3,
    0x29292929, 0xe3e3e3e3, 0x2f2f2f2f, 0x84848484,
    0x53535353, 0xd1d1d1d1, 0x00000000, 0xedededed,
    0x20202020, 0xfcfcfcfc, 0xb1b1b1b1, 0x5b5b5b5b,
    0x6a6a6a6a, 0xcbcbcbcb, 0xbebebebe, 0x39393939,
    0x4a4a4a4a, 0x4c4c4c4c, 0x58585858, 0xcfcfcfcf,
    0xd0d0d0d0, 0xefefefef, 0xaaaaaaaa, 0xfbfbfbfb,
    0x43434343, 0x4d4d4d4d, 0x33333333, 0x85858585,
    0x45454545, 0xf9f9f9f9, 0x02020202, 0x7f7f7f7f,
    0x50505050, 0x3c3c3c3c, 0x9f9f9f9f, 0xa8a8a8a8,
    0x51515151, 0xa3a3a3a3, 0x40404040, 0x8f8f8f8f,
    0x92929292, 0x9d9d9d9d, 0x38383838, 0xf5f5f5f5,
    0xbcbcbcbc, 0xb6b6b6b6, 0xdadadada, 0x21212121,
    0x10101010, 0xffffffff, 0xf3f3f3f3, 0xd2d2d2d2,
    0xcdcdcdcd, 0x0c0c0c0c, 0x13131313, 0xecececec,
    0x5f5f5f5f, 0x97979797, 0x44444444, 0x17171717,
    0xc4c4c4c4, 0xa7a7a7a7, 0x7e7e7e7e, 0x3d3d3d3d,
    0x64646464, 0x5d5d5d5d, 0x19191919, 0x73737373,
    0x60606060, 0x81818181, 0x4f4f4f4f, 0xdcdcdcdc,
    0x22222222, 0x2a2a2a2a, 0x90909090, 0x88888888,
    0x46464646, 0xeeeeeeee, 0xb8b8b8b8, 0x14141414,
    0xdededede, 0x5e5e5e5e, 0x0b0b0b0b, 0xdbdbdbdb,
    0xe0e0e0e0, 0x32323232, 0x3a3a3a3a, 0x0a0a0a0a,
    0x49494949, 0x06060606, 0x24242424, 0x5c5c5c5c,
    0xc2c2c2c2, 0xd3d3d3d3, 0xacacacac, 0x62626262,
    0x91919191, 0x95959595, 0xe4e4e4e4, 0x79797979,
    0xe7e7e7e7, 0xc8c8c8c8, 0x37373737, 0x6d6d6d6d,
    0x8d8d8d8d, 0xd5d5d5d5, 0x4e4e4e4e, 0xa9a9a9a9,
    0x6c6c6c6c, 0x56565656, 0xf4f4f4f4, 0xeaeaeaea,
    0x65656565, 0x7a7a7a7a, 0xaeaeaeae, 0x08080808,
    0xbabababa, 0x78787878, 0x25252525, 0x2e2e2e2e,
    0x1c1c1c1c, 0xa6a6a6a6, 0xb4b4b4b4, 0xc6c6c6c6,
    0xe8e8e8e8, 0xdddddddd, 0x74747474, 0x1f1f1f1f,
    0x4b4b4b4b, 0xbdbdbdbd, 0x8b8b8b8b, 0x8a8a8a8a,
    0x70707070, 0x3e3e3e3e, 0xb5b5b5b5, 0x66666666,
    0x48484848, 0x03030303, 0xf6f6f6f6, 0x0e0e0e0e,
    0x61616161, 0x35353535, 0x57575757, 0xb9b9b9b9,
    0x86868686, 0xc1c1c1c1, 0x1d1d1d1d, 0x9e9e9e9e,
    0xe1e1e1e1, 0xf8f8f8f8, 0x98989898, 0x11111111,
    0x69696969, 0xd9d9d9d9, 0x8e8e8e8e, 0x94949494,
    0x9b9b9b9b, 0x1e1e1e1e, 0x87878787, 0xe9e9e9e9,
    0xcececece, 0x55555555, 0x28282828, 0xdfdfdfdf,
    0x8c8c8c8c, 0xa1a1a1a1, 0x89898989, 0x0d0d0d0d,
    0xbfbfbfbf, 0xe6e6e6e6, 0x42424242, 0x68686868,
    0x41414141, 0x99999999, 0x2d2d2d2d, 0x0f0f0f0f,
    0xb0b0b0b0, 0x54545454, 0xbbbbbbbb, 0x16161616
};
/* clang-format on */

/* clang-format off */
static const uint32_t U4[256] = {
    0x52525252, 0x9090909,   0x6a6a6a6a,  0xd5d5d5d5,
    0x30303030, 0x36363636,  0xa5a5a5a5,  0x38383838,
    0xbfbfbfbf, 0x40404040,  0xa3a3a3a3,  0x9e9e9e9e,
    0x81818181, 0xf3f3f3f3,  0xd7d7d7d7,  0xfbfbfbfb,
    0x7c7c7c7c, 0xe3e3e3e3,  0x39393939,  0x82828282,
    0x9b9b9b9b, 0x2f2f2f2f,  0xffffffff,  0x87878787,
    0x34343434, 0x8e8e8e8e,  0x43434343,  0x44444444,
    0xc4c4c4c4, 0xdededede,  0xe9e9e9e9,  0xcbcbcbcb,
    0x54545454, 0x7b7b7b7b,  0x94949494,  0x32323232,
    0xa6a6a6a6, 0xc2c2c2c2,  0x23232323,  0x3d3d3d3d,
    0xeeeeeeee, 0x4c4c4c4c,  0x95959595,  0xb0b0b0b,
    0x42424242, 0xfafafafa,  0xc3c3c3c3,  0x4e4e4e4e,
    0x8080808,  0x2e2e2e2e,  0xa1a1a1a1,  0x66666666,
    0x28282828, 0xd9d9d9d9,  0x24242424,  0xb2b2b2b2,
    0x76767676, 0x5b5b5b5b,  0xa2a2a2a2,  0x49494949,
    0x6d6d6d6d, 0x8b8b8b8b,  0xd1d1d1d1,  0x25252525,
    0x72727272, 0xf8f8f8f8,  0xf6f6f6f6,  0x64646464,
    0x86868686, 0x68686868,  0x98989898,  0x16161616,
    0xd4d4d4d4, 0xa4a4a4a4,  0x5c5c5c5c,  0xcccccccc,
    0x5d5d5d5d, 0x65656565,  0xb6b6b6b6,  0x92929292,
    0x6c6c6c6c, 0x70707070,  0x48484848,  0x50505050,
    0xfdfdfdfd, 0xedededed,  0xb9b9b9b9,  0xdadadada,
    0x5e5e5e5e, 0x15151515,  0x46464646,  0x57575757,
    0xa7a7a7a7, 0x8d8d8d8d,  0x9d9d9d9d,  0x84848484,
    0x90909090, 0xd8d8d8d8,  0xabababab,  0x0,
    0x8c8c8c8c, 0xbcbcbcbc,  0xd3d3d3d3,  0xa0a0a0a,
    0xf7f7f7f7, 0xe4e4e4e4,  0x58585858,  0x5050505,
    0xb8b8b8b8, 0xb3b3b3b3,  0x45454545,  0x6060606,
    0xd0d0d0d0, 0x2c2c2c2c,  0x1e1e1e1e,  0x8f8f8f8f,
    0xcacacaca, 0x3f3f3f3f,  0xf0f0f0f,   0x2020202,
    0xc1c1c1c1, 0xafafafaf,  0xbdbdbdbd,  0x3030303,
    0x1010101,  0x13131313,  0x8a8a8a8a,  0x6b6b6b6b,
    0x3a3a3a3a, 0x91919191,  0x11111111,  0x41414141,
    0x4f4f4f4f, 0x67676767,  0xdcdcdcdc,  0xeaeaeaea,
    0x97979797, 0xf2f2f2f2,  0xcfcfcfcf,  0xcececece,
    0xf0f0f0f0, 0xb4b4b4b4,  0xe6e6e6e6,  0x73737373,
    0x96969696, 0xacacacac,  0x74747474,  0x22222222,
    0xe7e7e7e7, 0xadadadad,  0x35353535,  0x85858585,
    0xe2e2e2e2, 0xf9f9f9f9,  0x37373737,  0xe8e8e8e8,
    0x1c1c1c1c, 0x75757575,  0xdfdfdfdf,  0x6e6e6e6e,
    0x47474747, 0xf1f1f1f1,  0x1a1a1a1a,  0x71717171,
    0x1d1d1d1d, 0x29292929,  0xc5c5c5c5,  0x89898989,
    0x6f6f6f6f, 0xb7b7b7b7,  0x62626262,  0xe0e0e0e,
    0xaaaaaaaa, 0x18181818,  0xbebebebe,  0x1b1b1b1b,
    0xfcfcfcfc, 0x56565656,  0x3e3e3e3e,  0x4b4b4b4b,
    0xc6c6c6c6, 0xd2d2d2d2,  0x79797979,  0x20202020,
    0x9a9a9a9a, 0xdbdbdbdb,  0xc0c0c0c0,  0xfefefefe,
    0x78787878, 0xcdcdcdcd,  0x5a5a5a5a,  0xf4f4f4f4,
    0x1f1f1f1f, 0xdddddddd,  0xa8a8a8a8,  0x33333333,
    0x88888888, 0x7070707,   0xc7c7c7c7,  0x31313131,
    0xb1b1b1b1, 0x12121212,  0x10101010,  0x59595959,
    0x27272727, 0x80808080,  0xecececec,  0x5f5f5f5f,
    0x60606060, 0x51515151,  0x7f7f7f7f,  0xa9a9a9a9,
    0x19191919, 0xb5b5b5b5,  0x4a4a4a4a,  0xd0d0d0d,
    0x2d2d2d2d, 0xe5e5e5e5,  0x7a7a7a7a,  0x9f9f9f9f,
    0x93939393, 0xc9c9c9c9,  0x9c9c9c9c,  0xefefefef,
    0xa0a0a0a0, 0xe0e0e0e0,  0x3b3b3b3b,  0x4d4d4d4d,
    0xaeaeaeae, 0x2a2a2a2a,  0xf5f5f5f5,  0xb0b0b0b0,
    0xc8c8c8c8, 0xebebebeb,  0xbbbbbbbb,  0x3c3c3c3c,
    0x83838383, 0x53535353,  0x99999999,  0x61616161,
    0x17171717, 0x2b2b2b2b,  0x4040404,   0x7e7e7e7e,
    0xbabababa, 0x77777777,  0xd6d6d6d6,  0x26262626,
    0xe1e1e1e1, 0x69696969,  0x14141414,  0x63636363,
    0x55555555, 0x21212121,  0xc0c0c0c,   0x7d7d7d7d
};
/* clang-format on */
#endif /* CPU_RISC */

#define gf2_8_field_polynomial 0x1B
/*
 * gf2_8_shift(z) returns the result of the GF(2^8) 'multiply by x'
 * operation, using the field representation from AES; that is, the
 * next gf2_8 value in the cyclic representation of that field.  The
 * value z should be an uint8_t.
 */
#define gf2_8_shift(z)                                                         \
    (((z)&128) ? (((z) << 1) ^ gf2_8_field_polynomial) : ((z) << 1))

/* aes internals */

static void aes_128_expand_encryption_key(const uint8_t *key,
                                          srtp_aes_expanded_key_t *expanded_key)
{
    /* initialize round constant */
    uint8_t rc = 1;

    expanded_key->num_rounds = 10;

    v128_copy_octet_string(&expanded_key->round[0], key);

    /* loop over round keys */
    for (size_t i = 1; i < 11; i++) {
        /* munge first word of round key */
        expanded_key->round[i].v8[0] =
            aes_sbox[expanded_key->round[i - 1].v8[13]] ^ rc;
        expanded_key->round[i].v8[1] =
            aes_sbox[expanded_key->round[i - 1].v8[14]];
        expanded_key->round[i].v8[2] =
            aes_sbox[expanded_key->round[i - 1].v8[15]];
        expanded_key->round[i].v8[3] =
            aes_sbox[expanded_key->round[i - 1].v8[12]];

        expanded_key->round[i].v32[0] ^= expanded_key->round[i - 1].v32[0];

        /* set remaining 32 bit words to the exor of the one previous with
         * the one four words previous */

        expanded_key->round[i].v32[1] =
            expanded_key->round[i].v32[0] ^ expanded_key->round[i - 1].v32[1];

        expanded_key->round[i].v32[2] =
            expanded_key->round[i].v32[1] ^ expanded_key->round[i - 1].v32[2];

        expanded_key->round[i].v32[3] =
            expanded_key->round[i].v32[2] ^ expanded_key->round[i - 1].v32[3];

        /* modify round constant */
        rc = gf2_8_shift(rc);
    }
}

static void aes_256_expand_encryption_key(const uint8_t *key,
                                          srtp_aes_expanded_key_t *expanded_key)
{
    /* initialize round constant */
    uint8_t rc = 1;

    expanded_key->num_rounds = 14;

    v128_copy_octet_string(&expanded_key->round[0], key);
    v128_copy_octet_string(&expanded_key->round[1], key + 16);

    /* loop over rest of round keys */
    for (size_t i = 2; i < 15; i++) {
        /* munge first word of round key */
        if ((i & 1) == 0) {
            expanded_key->round[i].v8[0] =
                aes_sbox[expanded_key->round[i - 1].v8[13]] ^ rc;
            expanded_key->round[i].v8[1] =
                aes_sbox[expanded_key->round[i - 1].v8[14]];
            expanded_key->round[i].v8[2] =
                aes_sbox[expanded_key->round[i - 1].v8[15]];
            expanded_key->round[i].v8[3] =
                aes_sbox[expanded_key->round[i - 1].v8[12]];

            /* modify round constant */
            rc = gf2_8_shift(rc);
        } else {
            expanded_key->round[i].v8[0] =
                aes_sbox[expanded_key->round[i - 1].v8[12]];
            expanded_key->round[i].v8[1] =
                aes_sbox[expanded_key->round[i - 1].v8[13]];
            expanded_key->round[i].v8[2] =
                aes_sbox[expanded_key->round[i - 1].v8[14]];
            expanded_key->round[i].v8[3] =
                aes_sbox[expanded_key->round[i - 1].v8[15]];
        }

        expanded_key->round[i].v32[0] ^= expanded_key->round[i - 2].v32[0];

        /* set remaining 32 bit words to the exor of the one previous with
         * the one eight words previous */

        expanded_key->round[i].v32[1] =
            expanded_key->round[i].v32[0] ^ expanded_key->round[i - 2].v32[1];

        expanded_key->round[i].v32[2] =
            expanded_key->round[i].v32[1] ^ expanded_key->round[i - 2].v32[2];

        expanded_key->round[i].v32[3] =
            expanded_key->round[i].v32[2] ^ expanded_key->round[i - 2].v32[3];
    }
}

srtp_err_status_t srtp_aes_expand_encryption_key(
    const uint8_t *key,
    size_t key_len,
    srtp_aes_expanded_key_t *expanded_key)
{
    if (key_len == 16) {
        aes_128_expand_encryption_key(key, expanded_key);
        return srtp_err_status_ok;
    } else if (key_len == 24) {
        /* AES-192 not yet supported */
        return srtp_err_status_bad_param;
    } else if (key_len == 32) {
        aes_256_expand_encryption_key(key, expanded_key);
        return srtp_err_status_ok;
    } else {
        return srtp_err_status_bad_param;
    }
}

srtp_err_status_t srtp_aes_expand_decryption_key(
    const uint8_t *key,
    size_t key_len,
    srtp_aes_expanded_key_t *expanded_key)
{
    srtp_err_status_t status;
    size_t num_rounds = expanded_key->num_rounds;

    status = srtp_aes_expand_encryption_key(key, key_len, expanded_key);
    if (status) {
        return status;
    }

    /* invert the order of the round keys */
    for (size_t i = 0; i < num_rounds / 2; i++) {
        v128_t tmp;
        v128_copy(&tmp, &expanded_key->round[num_rounds - i]);
        v128_copy(&expanded_key->round[num_rounds - i],
                  &expanded_key->round[i]);
        v128_copy(&expanded_key->round[i], &tmp);
    }

    /*
     * apply the inverse mixColumn transform to the round keys (except
     * for the first and the last)
     *
     * mixColumn is implemented by using the tables U0, U1, U2, U3,
     * followed by the T4 table (which cancels out the use of the sbox
     * in the U-tables)
     */
    for (size_t i = 1; i < num_rounds; i++) {
#ifdef CPU_RISC
        uint32_t tmp;

#ifdef WORDS_BIGENDIAN
        /* clang-format off */
        tmp = expanded_key->round[i].v32[0];
        expanded_key->round[i].v32[0] =
            U0[T4[(tmp >> 24)       ] & 0xff] ^
            U1[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U3[T4[(tmp)       & 0xff] & 0xff];

        tmp = expanded_key->round[i].v32[1];
        expanded_key->round[i].v32[1] =
            U0[T4[(tmp >> 24)       ] & 0xff] ^
            U1[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U3[T4[(tmp)       & 0xff] & 0xff];

        tmp = expanded_key->round[i].v32[2];
        expanded_key->round[i].v32[2] =
            U0[T4[(tmp >> 24)       ] & 0xff] ^
            U1[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U3[T4[(tmp)       & 0xff] & 0xff];

        tmp = expanded_key->round[i].v32[3];
        expanded_key->round[i].v32[3] =
            U0[T4[(tmp >> 24)       ] & 0xff] ^
            U1[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U2[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U3[T4[(tmp)       & 0xff] & 0xff];
#else
        tmp = expanded_key->round[i].v32[0];
        expanded_key->round[i].v32[0] =
            U3[T4[(tmp >> 24)       ] & 0xff] ^
            U2[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U1[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U0[T4[(tmp)       & 0xff] & 0xff];

        tmp = expanded_key->round[i].v32[1];
        expanded_key->round[i].v32[1] =
            U3[T4[(tmp >> 24)       ] & 0xff] ^
            U2[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U1[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U0[T4[(tmp)       & 0xff] & 0xff];

        tmp = expanded_key->round[i].v32[2];
        expanded_key->round[i].v32[2] =
            U3[T4[(tmp >> 24)       ] & 0xff] ^
            U2[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U1[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U0[T4[(tmp)       & 0xff] & 0xff];

        tmp = expanded_key->round[i].v32[3];
        expanded_key->round[i].v32[3] =
            U3[T4[(tmp >> 24)       ] & 0xff] ^
            U2[T4[(tmp >> 16) & 0xff] & 0xff] ^
            U1[T4[(tmp >> 8)  & 0xff] & 0xff] ^
            U0[T4[(tmp)       & 0xff] & 0xff];
/* clang-format on */
#endif /* WORDS_BIGENDIAN */

#else /* assume CPU_CISC */

        uint32_t c0, c1, c2, c3;

        c0 = U0[aes_sbox[expanded_key->round[i].v8[0]]] ^
             U1[aes_sbox[expanded_key->round[i].v8[1]]] ^
             U2[aes_sbox[expanded_key->round[i].v8[2]]] ^
             U3[aes_sbox[expanded_key->round[i].v8[3]]];

        c1 = U0[aes_sbox[expanded_key->round[i].v8[4]]] ^
             U1[aes_sbox[expanded_key->round[i].v8[5]]] ^
             U2[aes_sbox[expanded_key->round[i].v8[6]]] ^
             U3[aes_sbox[expanded_key->round[i].v8[7]]];

        c2 = U0[aes_sbox[expanded_key->round[i].v8[8]]] ^
             U1[aes_sbox[expanded_key->round[i].v8[9]]] ^
             U2[aes_sbox[expanded_key->round[i].v8[10]]] ^
             U3[aes_sbox[expanded_key->round[i].v8[11]]];

        c3 = U0[aes_sbox[expanded_key->round[i].v8[12]]] ^
             U1[aes_sbox[expanded_key->round[i].v8[13]]] ^
             U2[aes_sbox[expanded_key->round[i].v8[14]]] ^
             U3[aes_sbox[expanded_key->round[i].v8[15]]];

        expanded_key->round[i].v32[0] = c0;
        expanded_key->round[i].v32[1] = c1;
        expanded_key->round[i].v32[2] = c2;
        expanded_key->round[i].v32[3] = c3;

#endif
    }

    return srtp_err_status_ok;
}

#ifdef CPU_CISC

static inline void aes_round(v128_t *state, const v128_t *round_key)
{
    uint32_t column0, column1, column2, column3;

    /* compute the columns of the output square in terms of the octets
       of state, using the tables T0, T1, T2, T3 */

    column0 = T0[state->v8[0]] ^ T1[state->v8[5]] ^ T2[state->v8[10]] ^
              T3[state->v8[15]];

    column1 = T0[state->v8[4]] ^ T1[state->v8[9]] ^ T2[state->v8[14]] ^
              T3[state->v8[3]];

    column2 = T0[state->v8[8]] ^ T1[state->v8[13]] ^ T2[state->v8[2]] ^
              T3[state->v8[7]];

    column3 = T0[state->v8[12]] ^ T1[state->v8[1]] ^ T2[state->v8[6]] ^
              T3[state->v8[11]];

    state->v32[0] = column0 ^ round_key->v32[0];
    state->v32[1] = column1 ^ round_key->v32[1];
    state->v32[2] = column2 ^ round_key->v32[2];
    state->v32[3] = column3 ^ round_key->v32[3];
}

static inline void aes_inv_round(v128_t *state, const v128_t *round_key)
{
    uint32_t column0, column1, column2, column3;

    /* compute the columns of the output square in terms of the octets
       of state, using the tables U0, U1, U2, U3 */

    column0 = U0[state->v8[0]] ^ U1[state->v8[13]] ^ U2[state->v8[10]] ^
              U3[state->v8[7]];

    column1 = U0[state->v8[4]] ^ U1[state->v8[1]] ^ U2[state->v8[14]] ^
              U3[state->v8[11]];

    column2 = U0[state->v8[8]] ^ U1[state->v8[5]] ^ U2[state->v8[2]] ^
              U3[state->v8[15]];

    column3 = U0[state->v8[12]] ^ U1[state->v8[9]] ^ U2[state->v8[6]] ^
              U3[state->v8[3]];

    state->v32[0] = column0 ^ round_key->v32[0];
    state->v32[1] = column1 ^ round_key->v32[1];
    state->v32[2] = column2 ^ round_key->v32[2];
    state->v32[3] = column3 ^ round_key->v32[3];
}

static inline void aes_final_round(v128_t *state, const v128_t *round_key)
{
    uint8_t tmp;

    /* byte substitutions and row shifts */
    /* first row - no shift */
    state->v8[0] = aes_sbox[state->v8[0]];
    state->v8[4] = aes_sbox[state->v8[4]];
    state->v8[8] = aes_sbox[state->v8[8]];
    state->v8[12] = aes_sbox[state->v8[12]];

    /* second row - shift one left */
    tmp = aes_sbox[state->v8[1]];
    state->v8[1] = aes_sbox[state->v8[5]];
    state->v8[5] = aes_sbox[state->v8[9]];
    state->v8[9] = aes_sbox[state->v8[13]];
    state->v8[13] = tmp;

    /* third row - shift two left */
    tmp = aes_sbox[state->v8[10]];
    state->v8[10] = aes_sbox[state->v8[2]];
    state->v8[2] = tmp;
    tmp = aes_sbox[state->v8[14]];
    state->v8[14] = aes_sbox[state->v8[6]];
    state->v8[6] = tmp;

    /* fourth row - shift three left */
    tmp = aes_sbox[state->v8[15]];
    state->v8[15] = aes_sbox[state->v8[11]];
    state->v8[11] = aes_sbox[state->v8[7]];
    state->v8[7] = aes_sbox[state->v8[3]];
    state->v8[3] = tmp;

    v128_xor_eq(state, round_key);
}

static inline void aes_inv_final_round(v128_t *state, const v128_t *round_key)
{
    uint8_t tmp;

    /* byte substitutions and row shifts */
    /* first row - no shift */
    state->v8[0] = aes_inv_sbox[state->v8[0]];
    state->v8[4] = aes_inv_sbox[state->v8[4]];
    state->v8[8] = aes_inv_sbox[state->v8[8]];
    state->v8[12] = aes_inv_sbox[state->v8[12]];

    /* second row - shift one right */
    tmp = aes_inv_sbox[state->v8[13]];
    state->v8[13] = aes_inv_sbox[state->v8[9]];
    state->v8[9] = aes_inv_sbox[state->v8[5]];
    state->v8[5] = aes_inv_sbox[state->v8[1]];
    state->v8[1] = tmp;

    /* third row - shift two right */
    tmp = aes_inv_sbox[state->v8[2]];
    state->v8[2] = aes_inv_sbox[state->v8[10]];
    state->v8[10] = tmp;
    tmp = aes_inv_sbox[state->v8[6]];
    state->v8[6] = aes_inv_sbox[state->v8[14]];
    state->v8[14] = tmp;

    /* fourth row - shift three right */
    tmp = aes_inv_sbox[state->v8[3]];
    state->v8[3] = aes_inv_sbox[state->v8[7]];
    state->v8[7] = aes_inv_sbox[state->v8[11]];
    state->v8[11] = aes_inv_sbox[state->v8[15]];
    state->v8[15] = tmp;

    v128_xor_eq(state, round_key);
}

#elif defined(CPU_RISC)

static inline void aes_round(v128_t *state, const v128_t *round_key)
{
    uint32_t column0, column1, column2, column3;

/* compute the columns of the output square in terms of the octets
   of state, using the tables T0, T1, T2, T3 */
#ifdef WORDS_BIGENDIAN
    column0 = T0[state->v32[0] >> 24] ^ T1[(state->v32[1] >> 16) & 0xff] ^
              T2[(state->v32[2] >> 8) & 0xff] ^ T3[state->v32[3] & 0xff];

    column1 = T0[state->v32[1] >> 24] ^ T1[(state->v32[2] >> 16) & 0xff] ^
              T2[(state->v32[3] >> 8) & 0xff] ^ T3[state->v32[0] & 0xff];

    column2 = T0[state->v32[2] >> 24] ^ T1[(state->v32[3] >> 16) & 0xff] ^
              T2[(state->v32[0] >> 8) & 0xff] ^ T3[state->v32[1] & 0xff];

    column3 = T0[state->v32[3] >> 24] ^ T1[(state->v32[0] >> 16) & 0xff] ^
              T2[(state->v32[1] >> 8) & 0xff] ^ T3[state->v32[2] & 0xff];
#else
    column0 = T0[state->v32[0] & 0xff] ^ T1[(state->v32[1] >> 8) & 0xff] ^
              T2[(state->v32[2] >> 16) & 0xff] ^ T3[state->v32[3] >> 24];

    column1 = T0[state->v32[1] & 0xff] ^ T1[(state->v32[2] >> 8) & 0xff] ^
              T2[(state->v32[3] >> 16) & 0xff] ^ T3[state->v32[0] >> 24];

    column2 = T0[state->v32[2] & 0xff] ^ T1[(state->v32[3] >> 8) & 0xff] ^
              T2[(state->v32[0] >> 16) & 0xff] ^ T3[state->v32[1] >> 24];

    column3 = T0[state->v32[3] & 0xff] ^ T1[(state->v32[0] >> 8) & 0xff] ^
              T2[(state->v32[1] >> 16) & 0xff] ^ T3[state->v32[2] >> 24];
#endif /* WORDS_BIGENDIAN */

    state->v32[0] = column0 ^ round_key->v32[0];
    state->v32[1] = column1 ^ round_key->v32[1];
    state->v32[2] = column2 ^ round_key->v32[2];
    state->v32[3] = column3 ^ round_key->v32[3];
}

static inline void aes_inv_round(v128_t *state, const v128_t *round_key)
{
    uint32_t column0, column1, column2, column3;

    /* compute the columns of the output square in terms of the octets
       of state, using the tables U0, U1, U2, U3 */

#ifdef WORDS_BIGENDIAN
    column0 = U0[state->v32[0] >> 24] ^ U1[(state->v32[3] >> 16) & 0xff] ^
              U2[(state->v32[2] >> 8) & 0xff] ^ U3[state->v32[1] & 0xff];

    column1 = U0[state->v32[1] >> 24] ^ U1[(state->v32[0] >> 16) & 0xff] ^
              U2[(state->v32[3] >> 8) & 0xff] ^ U3[state->v32[2] & 0xff];

    column2 = U0[state->v32[2] >> 24] ^ U1[(state->v32[1] >> 16) & 0xff] ^
              U2[(state->v32[0] >> 8) & 0xff] ^ U3[state->v32[3] & 0xff];

    column3 = U0[state->v32[3] >> 24] ^ U1[(state->v32[2] >> 16) & 0xff] ^
              U2[(state->v32[1] >> 8) & 0xff] ^ U3[state->v32[0] & 0xff];
#else
    column0 = U0[state->v32[0] & 0xff] ^ U1[(state->v32[3] >> 8) & 0xff] ^
              U2[(state->v32[2] >> 16) & 0xff] ^
              U3[(state->v32[1] >> 24) & 0xff];

    column1 = U0[state->v32[1] & 0xff] ^ U1[(state->v32[0] >> 8) & 0xff] ^
              U2[(state->v32[3] >> 16) & 0xff] ^
              U3[(state->v32[2] >> 24) & 0xff];

    column2 = U0[state->v32[2] & 0xff] ^ U1[(state->v32[1] >> 8) & 0xff] ^
              U2[(state->v32[0] >> 16) & 0xff] ^
              U3[(state->v32[3] >> 24) & 0xff];

    column3 = U0[state->v32[3] & 0xff] ^ U1[(state->v32[2] >> 8) & 0xff] ^
              U2[(state->v32[1] >> 16) & 0xff] ^
              U3[(state->v32[0] >> 24) & 0xff];
#endif /* WORDS_BIGENDIAN */

    state->v32[0] = column0 ^ round_key->v32[0];
    state->v32[1] = column1 ^ round_key->v32[1];
    state->v32[2] = column2 ^ round_key->v32[2];
    state->v32[3] = column3 ^ round_key->v32[3];
}

static inline void aes_final_round(v128_t *state, const v128_t *round_key)
{
    uint32_t tmp0, tmp1, tmp2, tmp3;

#ifdef WORDS_BIGENDIAN
    /* clang-format off */
    tmp0 = (T4[(state->v32[0] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[1] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[2] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[3]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[0];

    tmp1 = (T4[(state->v32[1] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[2] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[3] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[0]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[1];

    tmp2 = (T4[(state->v32[2] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[3] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[0] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[1]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[2];

    tmp3 = (T4[(state->v32[3] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[0] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[1] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[2]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[3];
#else
    tmp0 = (T4[(state->v32[3] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[2] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[1] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[0]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[0];

    tmp1 = (T4[(state->v32[0] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[3] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[2] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[1]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[1];

    tmp2 = (T4[(state->v32[1] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[0] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[3] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[2]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[2];

    tmp3 = (T4[(state->v32[2] >> 24)]        & 0xff000000) ^
           (T4[(state->v32[1] >> 16) & 0xff] & 0x00ff0000) ^
           (T4[(state->v32[0] >>  8) & 0xff] & 0x0000ff00) ^
           (T4[(state->v32[3]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[3];
/* clang-format on */
#endif /* WORDS_BIGENDIAN */

    state->v32[0] = tmp0;
    state->v32[1] = tmp1;
    state->v32[2] = tmp2;
    state->v32[3] = tmp3;
}

static inline void aes_inv_final_round(v128_t *state, const v128_t *round_key)
{
    uint32_t tmp0, tmp1, tmp2, tmp3;

#ifdef WORDS_BIGENDIAN
    /* clang-format off */
    tmp0 = (U4[(state->v32[0] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[3] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[2] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[1]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[0];

    tmp1 = (U4[(state->v32[1] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[0] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[3] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[2]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[1];

    tmp2 = (U4[(state->v32[2] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[1] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[0] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[3]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[2];

    tmp3 = (U4[(state->v32[3] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[2] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[1] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[0]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[3];
#else
    tmp0 = (U4[(state->v32[1] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[2] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[3] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[0]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[0];

    tmp1 = (U4[(state->v32[2] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[3] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[0] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[1]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[1];

    tmp2 = (U4[(state->v32[3] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[0] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[1] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[2]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[2];

    tmp3 = (U4[(state->v32[0] >> 24)]        & 0xff000000) ^
           (U4[(state->v32[1] >> 16) & 0xff] & 0x00ff0000) ^
           (U4[(state->v32[2] >>  8) & 0xff] & 0x0000ff00) ^
           (U4[(state->v32[3]      ) & 0xff] & 0x000000ff) ^
           round_key->v32[3];
/* clang-format on */
#endif /* WORDS_BIGENDIAN */

    state->v32[0] = tmp0;
    state->v32[1] = tmp1;
    state->v32[2] = tmp2;
    state->v32[3] = tmp3;
}

#elif CPU_16 /* assume 16-bit word size on processor */

static inline void aes_round(v128_t *state, const v128_t *round_key)
{
    uint32_t column0, column1, column2, column3;
    /* compute the columns of the output square in terms of the octets
       of state, using the tables T0, T1, T2, T3 */

    column0 = T0[state->v8[0]] ^ T1[state->v8[5]] ^ T2[state->v8[10]] ^
              T3[state->v8[15]];

    column1 = T0[state->v8[4]] ^ T1[state->v8[9]] ^ T2[state->v8[14]] ^
              T3[state->v8[3]];

    column2 = T0[state->v8[8]] ^ T1[state->v8[13]] ^ T2[state->v8[2]] ^
              T3[state->v8[7]];

    column3 = T0[state->v8[12]] ^ T1[state->v8[1]] ^ T2[state->v8[6]] ^
              T3[state->v8[11]];

    state->v32[0] = column0 ^ round_key->v32[0];
    state->v32[1] = column1 ^ round_key->v32[1];
    state->v32[2] = column2 ^ round_key->v32[2];
    state->v32[3] = column3 ^ round_key->v32[3];
}

static inline void aes_inv_round(v128_t *state, const v128_t *round_key)
{
    uint32_t column0, column1, column2, column3;

    /* compute the columns of the output square in terms of the octets
       of state, using the tables U0, U1, U2, U3 */

    column0 = U0[state->v8[0]] ^ U1[state->v8[5]] ^ U2[state->v8[10]] ^
              U3[state->v8[15]];

    column1 = U0[state->v8[4]] ^ U1[state->v8[9]] ^ U2[state->v8[14]] ^
              U3[state->v8[3]];

    column2 = U0[state->v8[8]] ^ U1[state->v8[13]] ^ U2[state->v8[2]] ^
              U3[state->v8[7]];

    column3 = U0[state->v8[12]] ^ U1[state->v8[1]] ^ U2[state->v8[6]] ^
              U3[state->v8[11]];

    state->v32[0] = column0 ^ round_key->v32[0];
    state->v32[1] = column1 ^ round_key->v32[1];
    state->v32[2] = column2 ^ round_key->v32[2];
    state->v32[3] = column3 ^ round_key->v32[3];
}

static inline void aes_final_round(v128_t *state, const v128_t *round_key)
{
    uint8_t tmp;

    /* byte substitutions and row shifts */
    /* first row - no shift */
    state->v8[0] = aes_sbox[state->v8[0]];
    state->v8[4] = aes_sbox[state->v8[4]];
    state->v8[8] = aes_sbox[state->v8[8]];
    state->v8[12] = aes_sbox[state->v8[12]];

    /* second row - shift one left */
    tmp = aes_sbox[state->v8[1]];
    state->v8[1] = aes_sbox[state->v8[5]];
    state->v8[5] = aes_sbox[state->v8[9]];
    state->v8[9] = aes_sbox[state->v8[13]];
    state->v8[13] = tmp;

    /* third row - shift two left */
    tmp = aes_sbox[state->v8[10]];
    state->v8[10] = aes_sbox[state->v8[2]];
    state->v8[2] = tmp;
    tmp = aes_sbox[state->v8[14]];
    state->v8[14] = aes_sbox[state->v8[6]];
    state->v8[6] = tmp;

    /* fourth row - shift three left */
    tmp = aes_sbox[state->v8[15]];
    state->v8[15] = aes_sbox[state->v8[11]];
    state->v8[11] = aes_sbox[state->v8[7]];
    state->v8[7] = aes_sbox[state->v8[3]];
    state->v8[3] = tmp;

    v128_xor_eq(state, round_key);
}

static inline void aes_inv_final_round(v128_t *state, const v128_t *round_key)
{
    uint8_t tmp;

    /* byte substitutions and row shifts */
    /* first row - no shift */
    state->v8[0] = aes_inv_sbox[state->v8[0]];
    state->v8[4] = aes_inv_sbox[state->v8[4]];
    state->v8[8] = aes_inv_sbox[state->v8[8]];
    state->v8[12] = aes_inv_sbox[state->v8[12]];

    /* second row - shift one left */
    tmp = aes_inv_sbox[state->v8[1]];
    state->v8[1] = aes_inv_sbox[state->v8[5]];
    state->v8[5] = aes_inv_sbox[state->v8[9]];
    state->v8[9] = aes_inv_sbox[state->v8[13]];
    state->v8[13] = tmp;

    /* third row - shift two left */
    tmp = aes_inv_sbox[state->v8[10]];
    state->v8[10] = aes_inv_sbox[state->v8[2]];
    state->v8[2] = tmp;
    tmp = aes_inv_sbox[state->v8[14]];
    state->v8[14] = aes_inv_sbox[state->v8[6]];
    state->v8[6] = tmp;

    /* fourth row - shift three left */
    tmp = aes_inv_sbox[state->v8[15]];
    state->v8[15] = aes_inv_sbox[state->v8[11]];
    state->v8[11] = aes_inv_sbox[state->v8[7]];
    state->v8[7] = aes_inv_sbox[state->v8[3]];
    state->v8[3] = tmp;

    v128_xor_eq(state, round_key);
}

#endif /* CPU type */

void srtp_aes_encrypt(v128_t *plaintext, const srtp_aes_expanded_key_t *exp_key)
{
    /* add in the subkey */
    v128_xor_eq(plaintext, &exp_key->round[0]);

    /* now do the rounds */
    aes_round(plaintext, &exp_key->round[1]);
    aes_round(plaintext, &exp_key->round[2]);
    aes_round(plaintext, &exp_key->round[3]);
    aes_round(plaintext, &exp_key->round[4]);
    aes_round(plaintext, &exp_key->round[5]);
    aes_round(plaintext, &exp_key->round[6]);
    aes_round(plaintext, &exp_key->round[7]);
    aes_round(plaintext, &exp_key->round[8]);
    aes_round(plaintext, &exp_key->round[9]);
    if (exp_key->num_rounds == 10) {
        aes_final_round(plaintext, &exp_key->round[10]);
    } else if (exp_key->num_rounds == 12) {
        aes_round(plaintext, &exp_key->round[10]);
        aes_round(plaintext, &exp_key->round[11]);
        aes_final_round(plaintext, &exp_key->round[12]);
    } else if (exp_key->num_rounds == 14) {
        aes_round(plaintext, &exp_key->round[10]);
        aes_round(plaintext, &exp_key->round[11]);
        aes_round(plaintext, &exp_key->round[12]);
        aes_round(plaintext, &exp_key->round[13]);
        aes_final_round(plaintext, &exp_key->round[14]);
    }
}

void srtp_aes_decrypt(v128_t *plaintext, const srtp_aes_expanded_key_t *exp_key)
{
    /* add in the subkey */
    v128_xor_eq(plaintext, &exp_key->round[0]);

    /* now do the rounds */
    aes_inv_round(plaintext, &exp_key->round[1]);
    aes_inv_round(plaintext, &exp_key->round[2]);
    aes_inv_round(plaintext, &exp_key->round[3]);
    aes_inv_round(plaintext, &exp_key->round[4]);
    aes_inv_round(plaintext, &exp_key->round[5]);
    aes_inv_round(plaintext, &exp_key->round[6]);
    aes_inv_round(plaintext, &exp_key->round[7]);
    aes_inv_round(plaintext, &exp_key->round[8]);
    aes_inv_round(plaintext, &exp_key->round[9]);
    if (exp_key->num_rounds == 10) {
        aes_inv_final_round(plaintext, &exp_key->round[10]);
    } else if (exp_key->num_rounds == 12) {
        aes_inv_round(plaintext, &exp_key->round[10]);
        aes_inv_round(plaintext, &exp_key->round[11]);
        aes_inv_final_round(plaintext, &exp_key->round[12]);
    } else if (exp_key->num_rounds == 14) {
        aes_inv_round(plaintext, &exp_key->round[10]);
        aes_inv_round(plaintext, &exp_key->round[11]);
        aes_inv_round(plaintext, &exp_key->round[12]);
        aes_inv_round(plaintext, &exp_key->round[13]);
        aes_inv_final_round(plaintext, &exp_key->round[14]);
    }
}