/src/openssl/crypto/sm4/sm4.c

Source
/*
 * Copyright 2017-2024 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright 2017 Ribose Inc. All Rights Reserved.
 * Ported from Ribose contributions from Botan.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <openssl/e_os2.h>
#include "crypto/sm4.h"

static const uint8_t SM4_S[256] = {
    0xD6, 0x90, 0xE9, 0xFE, 0xCC, 0xE1, 0x3D, 0xB7, 0x16, 0xB6, 0x14, 0xC2,
    0x28, 0xFB, 0x2C, 0x05, 0x2B, 0x67, 0x9A, 0x76, 0x2A, 0xBE, 0x04, 0xC3,
    0xAA, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99, 0x9C, 0x42, 0x50, 0xF4,
    0x91, 0xEF, 0x98, 0x7A, 0x33, 0x54, 0x0B, 0x43, 0xED, 0xCF, 0xAC, 0x62,
    0xE4, 0xB3, 0x1C, 0xA9, 0xC9, 0x08, 0xE8, 0x95, 0x80, 0xDF, 0x94, 0xFA,
    0x75, 0x8F, 0x3F, 0xA6, 0x47, 0x07, 0xA7, 0xFC, 0xF3, 0x73, 0x17, 0xBA,
    0x83, 0x59, 0x3C, 0x19, 0xE6, 0x85, 0x4F, 0xA8, 0x68, 0x6B, 0x81, 0xB2,
    0x71, 0x64, 0xDA, 0x8B, 0xF8, 0xEB, 0x0F, 0x4B, 0x70, 0x56, 0x9D, 0x35,
    0x1E, 0x24, 0x0E, 0x5E, 0x63, 0x58, 0xD1, 0xA2, 0x25, 0x22, 0x7C, 0x3B,
    0x01, 0x21, 0x78, 0x87, 0xD4, 0x00, 0x46, 0x57, 0x9F, 0xD3, 0x27, 0x52,
    0x4C, 0x36, 0x02, 0xE7, 0xA0, 0xC4, 0xC8, 0x9E, 0xEA, 0xBF, 0x8A, 0xD2,
    0x40, 0xC7, 0x38, 0xB5, 0xA3, 0xF7, 0xF2, 0xCE, 0xF9, 0x61, 0x15, 0xA1,
    0xE0, 0xAE, 0x5D, 0xA4, 0x9B, 0x34, 0x1A, 0x55, 0xAD, 0x93, 0x32, 0x30,
    0xF5, 0x8C, 0xB1, 0xE3, 0x1D, 0xF6, 0xE2, 0x2E, 0x82, 0x66, 0xCA, 0x60,
    0xC0, 0x29, 0x23, 0xAB, 0x0D, 0x53, 0x4E, 0x6F, 0xD5, 0xDB, 0x37, 0x45,
    0xDE, 0xFD, 0x8E, 0x2F, 0x03, 0xFF, 0x6A, 0x72, 0x6D, 0x6C, 0x5B, 0x51,
    0x8D, 0x1B, 0xAF, 0x92, 0xBB, 0xDD, 0xBC, 0x7F, 0x11, 0xD9, 0x5C, 0x41,
    0x1F, 0x10, 0x5A, 0xD8, 0x0A, 0xC1, 0x31, 0x88, 0xA5, 0xCD, 0x7B, 0xBD,
    0x2D, 0x74, 0xD0, 0x12, 0xB8, 0xE5, 0xB4, 0xB0, 0x89, 0x69, 0x97, 0x4A,
    0x0C, 0x96, 0x77, 0x7E, 0x65, 0xB9, 0xF1, 0x09, 0xC5, 0x6E, 0xC6, 0x84,
    0x18, 0xF0, 0x7D, 0xEC, 0x3A, 0xDC, 0x4D, 0x20, 0x79, 0xEE, 0x5F, 0x3E,
    0xD7, 0xCB, 0x39, 0x48
};

/*
 * SM4_SBOX_T[j] == L(SM4_SBOX[j]).
 */
static const uint32_t SM4_SBOX_T0[256] = {
    0x8ED55B5B, 0xD0924242, 0x4DEAA7A7, 0x06FDFBFB, 0xFCCF3333, 0x65E28787,
    0xC93DF4F4, 0x6BB5DEDE, 0x4E165858, 0x6EB4DADA, 0x44145050, 0xCAC10B0B,
    0x8828A0A0, 0x17F8EFEF, 0x9C2CB0B0, 0x11051414, 0x872BACAC, 0xFB669D9D,
    0xF2986A6A, 0xAE77D9D9, 0x822AA8A8, 0x46BCFAFA, 0x14041010, 0xCFC00F0F,
    0x02A8AAAA, 0x54451111, 0x5F134C4C, 0xBE269898, 0x6D482525, 0x9E841A1A,
    0x1E061818, 0xFD9B6666, 0xEC9E7272, 0x4A430909, 0x10514141, 0x24F7D3D3,
    0xD5934646, 0x53ECBFBF, 0xF89A6262, 0x927BE9E9, 0xFF33CCCC, 0x04555151,
    0x270B2C2C, 0x4F420D0D, 0x59EEB7B7, 0xF3CC3F3F, 0x1CAEB2B2, 0xEA638989,
    0x74E79393, 0x7FB1CECE, 0x6C1C7070, 0x0DABA6A6, 0xEDCA2727, 0x28082020,
    0x48EBA3A3, 0xC1975656, 0x80820202, 0xA3DC7F7F, 0xC4965252, 0x12F9EBEB,
    0xA174D5D5, 0xB38D3E3E, 0xC33FFCFC, 0x3EA49A9A, 0x5B461D1D, 0x1B071C1C,
    0x3BA59E9E, 0x0CFFF3F3, 0x3FF0CFCF, 0xBF72CDCD, 0x4B175C5C, 0x52B8EAEA,
    0x8F810E0E, 0x3D586565, 0xCC3CF0F0, 0x7D196464, 0x7EE59B9B, 0x91871616,
    0x734E3D3D, 0x08AAA2A2, 0xC869A1A1, 0xC76AADAD, 0x85830606, 0x7AB0CACA,
    0xB570C5C5, 0xF4659191, 0xB2D96B6B, 0xA7892E2E, 0x18FBE3E3, 0x47E8AFAF,
    0x330F3C3C, 0x674A2D2D, 0xB071C1C1, 0x0E575959, 0xE99F7676, 0xE135D4D4,
    0x661E7878, 0xB4249090, 0x360E3838, 0x265F7979, 0xEF628D8D, 0x38596161,
    0x95D24747, 0x2AA08A8A, 0xB1259494, 0xAA228888, 0x8C7DF1F1, 0xD73BECEC,
    0x05010404, 0xA5218484, 0x9879E1E1, 0x9B851E1E, 0x84D75353, 0x00000000,
    0x5E471919, 0x0B565D5D, 0xE39D7E7E, 0x9FD04F4F, 0xBB279C9C, 0x1A534949,
    0x7C4D3131, 0xEE36D8D8, 0x0A020808, 0x7BE49F9F, 0x20A28282, 0xD4C71313,
    0xE8CB2323, 0xE69C7A7A, 0x42E9ABAB, 0x43BDFEFE, 0xA2882A2A, 0x9AD14B4B,
    0x40410101, 0xDBC41F1F, 0xD838E0E0, 0x61B7D6D6, 0x2FA18E8E, 0x2BF4DFDF,
    0x3AF1CBCB, 0xF6CD3B3B, 0x1DFAE7E7, 0xE5608585, 0x41155454, 0x25A38686,
    0x60E38383, 0x16ACBABA, 0x295C7575, 0x34A69292, 0xF7996E6E, 0xE434D0D0,
    0x721A6868, 0x01545555, 0x19AFB6B6, 0xDF914E4E, 0xFA32C8C8, 0xF030C0C0,
    0x21F6D7D7, 0xBC8E3232, 0x75B3C6C6, 0x6FE08F8F, 0x691D7474, 0x2EF5DBDB,
    0x6AE18B8B, 0x962EB8B8, 0x8A800A0A, 0xFE679999, 0xE2C92B2B, 0xE0618181,
    0xC0C30303, 0x8D29A4A4, 0xAF238C8C, 0x07A9AEAE, 0x390D3434, 0x1F524D4D,
    0x764F3939, 0xD36EBDBD, 0x81D65757, 0xB7D86F6F, 0xEB37DCDC, 0x51441515,
    0xA6DD7B7B, 0x09FEF7F7, 0xB68C3A3A, 0x932FBCBC, 0x0F030C0C, 0x03FCFFFF,
    0xC26BA9A9, 0xBA73C9C9, 0xD96CB5B5, 0xDC6DB1B1, 0x375A6D6D, 0x15504545,
    0xB98F3636, 0x771B6C6C, 0x13ADBEBE, 0xDA904A4A, 0x57B9EEEE, 0xA9DE7777,
    0x4CBEF2F2, 0x837EFDFD, 0x55114444, 0xBDDA6767, 0x2C5D7171, 0x45400505,
    0x631F7C7C, 0x50104040, 0x325B6969, 0xB8DB6363, 0x220A2828, 0xC5C20707,
    0xF531C4C4, 0xA88A2222, 0x31A79696, 0xF9CE3737, 0x977AEDED, 0x49BFF6F6,
    0x992DB4B4, 0xA475D1D1, 0x90D34343, 0x5A124848, 0x58BAE2E2, 0x71E69797,
    0x64B6D2D2, 0x70B2C2C2, 0xAD8B2626, 0xCD68A5A5, 0xCB955E5E, 0x624B2929,
    0x3C0C3030, 0xCE945A5A, 0xAB76DDDD, 0x867FF9F9, 0xF1649595, 0x5DBBE6E6,
    0x35F2C7C7, 0x2D092424, 0xD1C61717, 0xD66FB9B9, 0xDEC51B1B, 0x94861212,
    0x78186060, 0x30F3C3C3, 0x897CF5F5, 0x5CEFB3B3, 0xD23AE8E8, 0xACDF7373,
    0x794C3535, 0xA0208080, 0x9D78E5E5, 0x56EDBBBB, 0x235E7D7D, 0xC63EF8F8,
    0x8BD45F5F, 0xE7C82F2F, 0xDD39E4E4, 0x68492121
};

static const uint32_t SM4_SBOX_T1[256] = {
    0x5B8ED55B, 0x42D09242, 0xA74DEAA7, 0xFB06FDFB, 0x33FCCF33, 0x8765E287,
    0xF4C93DF4, 0xDE6BB5DE, 0x584E1658, 0xDA6EB4DA, 0x50441450, 0x0BCAC10B,
    0xA08828A0, 0xEF17F8EF, 0xB09C2CB0, 0x14110514, 0xAC872BAC, 0x9DFB669D,
    0x6AF2986A, 0xD9AE77D9, 0xA8822AA8, 0xFA46BCFA, 0x10140410, 0x0FCFC00F,
    0xAA02A8AA, 0x11544511, 0x4C5F134C, 0x98BE2698, 0x256D4825, 0x1A9E841A,
    0x181E0618, 0x66FD9B66, 0x72EC9E72, 0x094A4309, 0x41105141, 0xD324F7D3,
    0x46D59346, 0xBF53ECBF, 0x62F89A62, 0xE9927BE9, 0xCCFF33CC, 0x51045551,
    0x2C270B2C, 0x0D4F420D, 0xB759EEB7, 0x3FF3CC3F, 0xB21CAEB2, 0x89EA6389,
    0x9374E793, 0xCE7FB1CE, 0x706C1C70, 0xA60DABA6, 0x27EDCA27, 0x20280820,
    0xA348EBA3, 0x56C19756, 0x02808202, 0x7FA3DC7F, 0x52C49652, 0xEB12F9EB,
    0xD5A174D5, 0x3EB38D3E, 0xFCC33FFC, 0x9A3EA49A, 0x1D5B461D, 0x1C1B071C,
    0x9E3BA59E, 0xF30CFFF3, 0xCF3FF0CF, 0xCDBF72CD, 0x5C4B175C, 0xEA52B8EA,
    0x0E8F810E, 0x653D5865, 0xF0CC3CF0, 0x647D1964, 0x9B7EE59B, 0x16918716,
    0x3D734E3D, 0xA208AAA2, 0xA1C869A1, 0xADC76AAD, 0x06858306, 0xCA7AB0CA,
    0xC5B570C5, 0x91F46591, 0x6BB2D96B, 0x2EA7892E, 0xE318FBE3, 0xAF47E8AF,
    0x3C330F3C, 0x2D674A2D, 0xC1B071C1, 0x590E5759, 0x76E99F76, 0xD4E135D4,
    0x78661E78, 0x90B42490, 0x38360E38, 0x79265F79, 0x8DEF628D, 0x61385961,
    0x4795D247, 0x8A2AA08A, 0x94B12594, 0x88AA2288, 0xF18C7DF1, 0xECD73BEC,
    0x04050104, 0x84A52184, 0xE19879E1, 0x1E9B851E, 0x5384D753, 0x00000000,
    0x195E4719, 0x5D0B565D, 0x7EE39D7E, 0x4F9FD04F, 0x9CBB279C, 0x491A5349,
    0x317C4D31, 0xD8EE36D8, 0x080A0208, 0x9F7BE49F, 0x8220A282, 0x13D4C713,
    0x23E8CB23, 0x7AE69C7A, 0xAB42E9AB, 0xFE43BDFE, 0x2AA2882A, 0x4B9AD14B,
    0x01404101, 0x1FDBC41F, 0xE0D838E0, 0xD661B7D6, 0x8E2FA18E, 0xDF2BF4DF,
    0xCB3AF1CB, 0x3BF6CD3B, 0xE71DFAE7, 0x85E56085, 0x54411554, 0x8625A386,
    0x8360E383, 0xBA16ACBA, 0x75295C75, 0x9234A692, 0x6EF7996E, 0xD0E434D0,
    0x68721A68, 0x55015455, 0xB619AFB6, 0x4EDF914E, 0xC8FA32C8, 0xC0F030C0,
    0xD721F6D7, 0x32BC8E32, 0xC675B3C6, 0x8F6FE08F, 0x74691D74, 0xDB2EF5DB,
    0x8B6AE18B, 0xB8962EB8, 0x0A8A800A, 0x99FE6799, 0x2BE2C92B, 0x81E06181,
    0x03C0C303, 0xA48D29A4, 0x8CAF238C, 0xAE07A9AE, 0x34390D34, 0x4D1F524D,
    0x39764F39, 0xBDD36EBD, 0x5781D657, 0x6FB7D86F, 0xDCEB37DC, 0x15514415,
    0x7BA6DD7B, 0xF709FEF7, 0x3AB68C3A, 0xBC932FBC, 0x0C0F030C, 0xFF03FCFF,
    0xA9C26BA9, 0xC9BA73C9, 0xB5D96CB5, 0xB1DC6DB1, 0x6D375A6D, 0x45155045,
    0x36B98F36, 0x6C771B6C, 0xBE13ADBE, 0x4ADA904A, 0xEE57B9EE, 0x77A9DE77,
    0xF24CBEF2, 0xFD837EFD, 0x44551144, 0x67BDDA67, 0x712C5D71, 0x05454005,
    0x7C631F7C, 0x40501040, 0x69325B69, 0x63B8DB63, 0x28220A28, 0x07C5C207,
    0xC4F531C4, 0x22A88A22, 0x9631A796, 0x37F9CE37, 0xED977AED, 0xF649BFF6,
    0xB4992DB4, 0xD1A475D1, 0x4390D343, 0x485A1248, 0xE258BAE2, 0x9771E697,
    0xD264B6D2, 0xC270B2C2, 0x26AD8B26, 0xA5CD68A5, 0x5ECB955E, 0x29624B29,
    0x303C0C30, 0x5ACE945A, 0xDDAB76DD, 0xF9867FF9, 0x95F16495, 0xE65DBBE6,
    0xC735F2C7, 0x242D0924, 0x17D1C617, 0xB9D66FB9, 0x1BDEC51B, 0x12948612,
    0x60781860, 0xC330F3C3, 0xF5897CF5, 0xB35CEFB3, 0xE8D23AE8, 0x73ACDF73,
    0x35794C35, 0x80A02080, 0xE59D78E5, 0xBB56EDBB, 0x7D235E7D, 0xF8C63EF8,
    0x5F8BD45F, 0x2FE7C82F, 0xE4DD39E4, 0x21684921
};

static const uint32_t SM4_SBOX_T2[256] = {
    0x5B5B8ED5, 0x4242D092, 0xA7A74DEA, 0xFBFB06FD, 0x3333FCCF, 0x878765E2,
    0xF4F4C93D, 0xDEDE6BB5, 0x58584E16, 0xDADA6EB4, 0x50504414, 0x0B0BCAC1,
    0xA0A08828, 0xEFEF17F8, 0xB0B09C2C, 0x14141105, 0xACAC872B, 0x9D9DFB66,
    0x6A6AF298, 0xD9D9AE77, 0xA8A8822A, 0xFAFA46BC, 0x10101404, 0x0F0FCFC0,
    0xAAAA02A8, 0x11115445, 0x4C4C5F13, 0x9898BE26, 0x25256D48, 0x1A1A9E84,
    0x18181E06, 0x6666FD9B, 0x7272EC9E, 0x09094A43, 0x41411051, 0xD3D324F7,
    0x4646D593, 0xBFBF53EC, 0x6262F89A, 0xE9E9927B, 0xCCCCFF33, 0x51510455,
    0x2C2C270B, 0x0D0D4F42, 0xB7B759EE, 0x3F3FF3CC, 0xB2B21CAE, 0x8989EA63,
    0x939374E7, 0xCECE7FB1, 0x70706C1C, 0xA6A60DAB, 0x2727EDCA, 0x20202808,
    0xA3A348EB, 0x5656C197, 0x02028082, 0x7F7FA3DC, 0x5252C496, 0xEBEB12F9,
    0xD5D5A174, 0x3E3EB38D, 0xFCFCC33F, 0x9A9A3EA4, 0x1D1D5B46, 0x1C1C1B07,
    0x9E9E3BA5, 0xF3F30CFF, 0xCFCF3FF0, 0xCDCDBF72, 0x5C5C4B17, 0xEAEA52B8,
    0x0E0E8F81, 0x65653D58, 0xF0F0CC3C, 0x64647D19, 0x9B9B7EE5, 0x16169187,
    0x3D3D734E, 0xA2A208AA, 0xA1A1C869, 0xADADC76A, 0x06068583, 0xCACA7AB0,
    0xC5C5B570, 0x9191F465, 0x6B6BB2D9, 0x2E2EA789, 0xE3E318FB, 0xAFAF47E8,
    0x3C3C330F, 0x2D2D674A, 0xC1C1B071, 0x59590E57, 0x7676E99F, 0xD4D4E135,
    0x7878661E, 0x9090B424, 0x3838360E, 0x7979265F, 0x8D8DEF62, 0x61613859,
    0x474795D2, 0x8A8A2AA0, 0x9494B125, 0x8888AA22, 0xF1F18C7D, 0xECECD73B,
    0x04040501, 0x8484A521, 0xE1E19879, 0x1E1E9B85, 0x535384D7, 0x00000000,
    0x19195E47, 0x5D5D0B56, 0x7E7EE39D, 0x4F4F9FD0, 0x9C9CBB27, 0x49491A53,
    0x31317C4D, 0xD8D8EE36, 0x08080A02, 0x9F9F7BE4, 0x828220A2, 0x1313D4C7,
    0x2323E8CB, 0x7A7AE69C, 0xABAB42E9, 0xFEFE43BD, 0x2A2AA288, 0x4B4B9AD1,
    0x01014041, 0x1F1FDBC4, 0xE0E0D838, 0xD6D661B7, 0x8E8E2FA1, 0xDFDF2BF4,
    0xCBCB3AF1, 0x3B3BF6CD, 0xE7E71DFA, 0x8585E560, 0x54544115, 0x868625A3,
    0x838360E3, 0xBABA16AC, 0x7575295C, 0x929234A6, 0x6E6EF799, 0xD0D0E434,
    0x6868721A, 0x55550154, 0xB6B619AF, 0x4E4EDF91, 0xC8C8FA32, 0xC0C0F030,
    0xD7D721F6, 0x3232BC8E, 0xC6C675B3, 0x8F8F6FE0, 0x7474691D, 0xDBDB2EF5,
    0x8B8B6AE1, 0xB8B8962E, 0x0A0A8A80, 0x9999FE67, 0x2B2BE2C9, 0x8181E061,
    0x0303C0C3, 0xA4A48D29, 0x8C8CAF23, 0xAEAE07A9, 0x3434390D, 0x4D4D1F52,
    0x3939764F, 0xBDBDD36E, 0x575781D6, 0x6F6FB7D8, 0xDCDCEB37, 0x15155144,
    0x7B7BA6DD, 0xF7F709FE, 0x3A3AB68C, 0xBCBC932F, 0x0C0C0F03, 0xFFFF03FC,
    0xA9A9C26B, 0xC9C9BA73, 0xB5B5D96C, 0xB1B1DC6D, 0x6D6D375A, 0x45451550,
    0x3636B98F, 0x6C6C771B, 0xBEBE13AD, 0x4A4ADA90, 0xEEEE57B9, 0x7777A9DE,
    0xF2F24CBE, 0xFDFD837E, 0x44445511, 0x6767BDDA, 0x71712C5D, 0x05054540,
    0x7C7C631F, 0x40405010, 0x6969325B, 0x6363B8DB, 0x2828220A, 0x0707C5C2,
    0xC4C4F531, 0x2222A88A, 0x969631A7, 0x3737F9CE, 0xEDED977A, 0xF6F649BF,
    0xB4B4992D, 0xD1D1A475, 0x434390D3, 0x48485A12, 0xE2E258BA, 0x979771E6,
    0xD2D264B6, 0xC2C270B2, 0x2626AD8B, 0xA5A5CD68, 0x5E5ECB95, 0x2929624B,
    0x30303C0C, 0x5A5ACE94, 0xDDDDAB76, 0xF9F9867F, 0x9595F164, 0xE6E65DBB,
    0xC7C735F2, 0x24242D09, 0x1717D1C6, 0xB9B9D66F, 0x1B1BDEC5, 0x12129486,
    0x60607818, 0xC3C330F3, 0xF5F5897C, 0xB3B35CEF, 0xE8E8D23A, 0x7373ACDF,
    0x3535794C, 0x8080A020, 0xE5E59D78, 0xBBBB56ED, 0x7D7D235E, 0xF8F8C63E,
    0x5F5F8BD4, 0x2F2FE7C8, 0xE4E4DD39, 0x21216849
};

static const uint32_t SM4_SBOX_T3[256] = {
    0xD55B5B8E, 0x924242D0, 0xEAA7A74D, 0xFDFBFB06, 0xCF3333FC, 0xE2878765,
    0x3DF4F4C9, 0xB5DEDE6B, 0x1658584E, 0xB4DADA6E, 0x14505044, 0xC10B0BCA,
    0x28A0A088, 0xF8EFEF17, 0x2CB0B09C, 0x05141411, 0x2BACAC87, 0x669D9DFB,
    0x986A6AF2, 0x77D9D9AE, 0x2AA8A882, 0xBCFAFA46, 0x04101014, 0xC00F0FCF,
    0xA8AAAA02, 0x45111154, 0x134C4C5F, 0x269898BE, 0x4825256D, 0x841A1A9E,
    0x0618181E, 0x9B6666FD, 0x9E7272EC, 0x4309094A, 0x51414110, 0xF7D3D324,
    0x934646D5, 0xECBFBF53, 0x9A6262F8, 0x7BE9E992, 0x33CCCCFF, 0x55515104,
    0x0B2C2C27, 0x420D0D4F, 0xEEB7B759, 0xCC3F3FF3, 0xAEB2B21C, 0x638989EA,
    0xE7939374, 0xB1CECE7F, 0x1C70706C, 0xABA6A60D, 0xCA2727ED, 0x08202028,
    0xEBA3A348, 0x975656C1, 0x82020280, 0xDC7F7FA3, 0x965252C4, 0xF9EBEB12,
    0x74D5D5A1, 0x8D3E3EB3, 0x3FFCFCC3, 0xA49A9A3E, 0x461D1D5B, 0x071C1C1B,
    0xA59E9E3B, 0xFFF3F30C, 0xF0CFCF3F, 0x72CDCDBF, 0x175C5C4B, 0xB8EAEA52,
    0x810E0E8F, 0x5865653D, 0x3CF0F0CC, 0x1964647D, 0xE59B9B7E, 0x87161691,
    0x4E3D3D73, 0xAAA2A208, 0x69A1A1C8, 0x6AADADC7, 0x83060685, 0xB0CACA7A,
    0x70C5C5B5, 0x659191F4, 0xD96B6BB2, 0x892E2EA7, 0xFBE3E318, 0xE8AFAF47,
    0x0F3C3C33, 0x4A2D2D67, 0x71C1C1B0, 0x5759590E, 0x9F7676E9, 0x35D4D4E1,
    0x1E787866, 0x249090B4, 0x0E383836, 0x5F797926, 0x628D8DEF, 0x59616138,
    0xD2474795, 0xA08A8A2A, 0x259494B1, 0x228888AA, 0x7DF1F18C, 0x3BECECD7,
    0x01040405, 0x218484A5, 0x79E1E198, 0x851E1E9B, 0xD7535384, 0x00000000,
    0x4719195E, 0x565D5D0B, 0x9D7E7EE3, 0xD04F4F9F, 0x279C9CBB, 0x5349491A,
    0x4D31317C, 0x36D8D8EE, 0x0208080A, 0xE49F9F7B, 0xA2828220, 0xC71313D4,
    0xCB2323E8, 0x9C7A7AE6, 0xE9ABAB42, 0xBDFEFE43, 0x882A2AA2, 0xD14B4B9A,
    0x41010140, 0xC41F1FDB, 0x38E0E0D8, 0xB7D6D661, 0xA18E8E2F, 0xF4DFDF2B,
    0xF1CBCB3A, 0xCD3B3BF6, 0xFAE7E71D, 0x608585E5, 0x15545441, 0xA3868625,
    0xE3838360, 0xACBABA16, 0x5C757529, 0xA6929234, 0x996E6EF7, 0x34D0D0E4,
    0x1A686872, 0x54555501, 0xAFB6B619, 0x914E4EDF, 0x32C8C8FA, 0x30C0C0F0,
    0xF6D7D721, 0x8E3232BC, 0xB3C6C675, 0xE08F8F6F, 0x1D747469, 0xF5DBDB2E,
    0xE18B8B6A, 0x2EB8B896, 0x800A0A8A, 0x679999FE, 0xC92B2BE2, 0x618181E0,
    0xC30303C0, 0x29A4A48D, 0x238C8CAF, 0xA9AEAE07, 0x0D343439, 0x524D4D1F,
    0x4F393976, 0x6EBDBDD3, 0xD6575781, 0xD86F6FB7, 0x37DCDCEB, 0x44151551,
    0xDD7B7BA6, 0xFEF7F709, 0x8C3A3AB6, 0x2FBCBC93, 0x030C0C0F, 0xFCFFFF03,
    0x6BA9A9C2, 0x73C9C9BA, 0x6CB5B5D9, 0x6DB1B1DC, 0x5A6D6D37, 0x50454515,
    0x8F3636B9, 0x1B6C6C77, 0xADBEBE13, 0x904A4ADA, 0xB9EEEE57, 0xDE7777A9,
    0xBEF2F24C, 0x7EFDFD83, 0x11444455, 0xDA6767BD, 0x5D71712C, 0x40050545,
    0x1F7C7C63, 0x10404050, 0x5B696932, 0xDB6363B8, 0x0A282822, 0xC20707C5,
    0x31C4C4F5, 0x8A2222A8, 0xA7969631, 0xCE3737F9, 0x7AEDED97, 0xBFF6F649,
    0x2DB4B499, 0x75D1D1A4, 0xD3434390, 0x1248485A, 0xBAE2E258, 0xE6979771,
    0xB6D2D264, 0xB2C2C270, 0x8B2626AD, 0x68A5A5CD, 0x955E5ECB, 0x4B292962,
    0x0C30303C, 0x945A5ACE, 0x76DDDDAB, 0x7FF9F986, 0x649595F1, 0xBBE6E65D,
    0xF2C7C735, 0x0924242D, 0xC61717D1, 0x6FB9B9D6, 0xC51B1BDE, 0x86121294,
    0x18606078, 0xF3C3C330, 0x7CF5F589, 0xEFB3B35C, 0x3AE8E8D2, 0xDF7373AC,
    0x4C353579, 0x208080A0, 0x78E5E59D, 0xEDBBBB56, 0x5E7D7D23, 0x3EF8F8C6,
    0xD45F5F8B, 0xC82F2FE7, 0x39E4E4DD, 0x49212168
};

static ossl_inline uint32_t rotl(uint32_t a, uint8_t n)
{
    return (a << n) | (a >> (32 - n));
}

static ossl_inline uint32_t load_u32_be(const uint8_t *b, uint32_t n)
{
    return ((uint32_t)b[4 * n] << 24) | ((uint32_t)b[4 * n + 1] << 16) | ((uint32_t)b[4 * n + 2] << 8) | ((uint32_t)b[4 * n + 3]);
}

static ossl_inline void store_u32_be(uint32_t v, uint8_t *b)
{
    b[0] = (uint8_t)(v >> 24);
    b[1] = (uint8_t)(v >> 16);
    b[2] = (uint8_t)(v >> 8);
    b[3] = (uint8_t)(v);
}

static ossl_inline uint32_t SM4_T_non_lin_sub(uint32_t X)
{
    uint32_t t = 0;

    t |= ((uint32_t)SM4_S[(uint8_t)(X >> 24)]) << 24;
    t |= ((uint32_t)SM4_S[(uint8_t)(X >> 16)]) << 16;
    t |= ((uint32_t)SM4_S[(uint8_t)(X >> 8)]) << 8;
    t |= SM4_S[(uint8_t)X];

    return t;
}

static ossl_inline uint32_t SM4_T_slow(uint32_t X)
{
    uint32_t t = SM4_T_non_lin_sub(X);

    /*
     * L linear transform
     */
    return t ^ rotl(t, 2) ^ rotl(t, 10) ^ rotl(t, 18) ^ rotl(t, 24);
}

static ossl_inline uint32_t SM4_T(uint32_t X)
{
    return SM4_SBOX_T0[(uint8_t)(X >> 24)] ^ SM4_SBOX_T1[(uint8_t)(X >> 16)] ^ SM4_SBOX_T2[(uint8_t)(X >> 8)] ^ SM4_SBOX_T3[(uint8_t)X];
}

static ossl_inline uint32_t SM4_key_sub(uint32_t X)
{
    uint32_t t = SM4_T_non_lin_sub(X);

    return t ^ rotl(t, 13) ^ rotl(t, 23);
}

int ossl_sm4_set_key(const uint8_t *key, SM4_KEY *ks)
{
    /*
     * Family Key
     */
    static const uint32_t FK[4] = {
        0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc
    };

    /*
     * Constant Key
     */
    static const uint32_t CK[32] = {
        0x00070E15, 0x1C232A31, 0x383F464D, 0x545B6269,
        0x70777E85, 0x8C939AA1, 0xA8AFB6BD, 0xC4CBD2D9,
        0xE0E7EEF5, 0xFC030A11, 0x181F262D, 0x343B4249,
        0x50575E65, 0x6C737A81, 0x888F969D, 0xA4ABB2B9,
        0xC0C7CED5, 0xDCE3EAF1, 0xF8FF060D, 0x141B2229,
        0x30373E45, 0x4C535A61, 0x686F767D, 0x848B9299,
        0xA0A7AEB5, 0xBCC3CAD1, 0xD8DFE6ED, 0xF4FB0209,
        0x10171E25, 0x2C333A41, 0x484F565D, 0x646B7279
    };

    uint32_t K[4];
    int i;

    K[0] = load_u32_be(key, 0) ^ FK[0];
    K[1] = load_u32_be(key, 1) ^ FK[1];
    K[2] = load_u32_be(key, 2) ^ FK[2];
    K[3] = load_u32_be(key, 3) ^ FK[3];

    for (i = 0; i < SM4_KEY_SCHEDULE; i = i + 4) {
        K[0] ^= SM4_key_sub(K[1] ^ K[2] ^ K[3] ^ CK[i]);
        K[1] ^= SM4_key_sub(K[2] ^ K[3] ^ K[0] ^ CK[i + 1]);
        K[2] ^= SM4_key_sub(K[3] ^ K[0] ^ K[1] ^ CK[i + 2]);
        K[3] ^= SM4_key_sub(K[0] ^ K[1] ^ K[2] ^ CK[i + 3]);
        ks->rk[i] = K[0];
        ks->rk[i + 1] = K[1];
        ks->rk[i + 2] = K[2];
        ks->rk[i + 3] = K[3];
    }

    return 1;
}

#define SM4_RNDS(k0, k1, k2, k3, F)         \
    do {                                    \
        B0 ^= F(B1 ^ B2 ^ B3 ^ ks->rk[k0]); \
        B1 ^= F(B0 ^ B2 ^ B3 ^ ks->rk[k1]); \
        B2 ^= F(B0 ^ B1 ^ B3 ^ ks->rk[k2]); \
        B3 ^= F(B0 ^ B1 ^ B2 ^ ks->rk[k3]); \
    } while (0)

void ossl_sm4_encrypt(const uint8_t *in, uint8_t *out, const SM4_KEY *ks)
{
    uint32_t B0 = load_u32_be(in, 0);
    uint32_t B1 = load_u32_be(in, 1);
    uint32_t B2 = load_u32_be(in, 2);
    uint32_t B3 = load_u32_be(in, 3);

    /*
     * Uses byte-wise sbox in the first and last rounds to provide some
     * protection from cache based side channels.
     */
    SM4_RNDS(0, 1, 2, 3, SM4_T_slow);
    SM4_RNDS(4, 5, 6, 7, SM4_T);
    SM4_RNDS(8, 9, 10, 11, SM4_T);
    SM4_RNDS(12, 13, 14, 15, SM4_T);
    SM4_RNDS(16, 17, 18, 19, SM4_T);
    SM4_RNDS(20, 21, 22, 23, SM4_T);
    SM4_RNDS(24, 25, 26, 27, SM4_T);
    SM4_RNDS(28, 29, 30, 31, SM4_T_slow);

    store_u32_be(B3, out);
    store_u32_be(B2, out + 4);
    store_u32_be(B1, out + 8);
    store_u32_be(B0, out + 12);
}

void ossl_sm4_decrypt(const uint8_t *in, uint8_t *out, const SM4_KEY *ks)
{
    uint32_t B0 = load_u32_be(in, 0);
    uint32_t B1 = load_u32_be(in, 1);
    uint32_t B2 = load_u32_be(in, 2);
    uint32_t B3 = load_u32_be(in, 3);

    SM4_RNDS(31, 30, 29, 28, SM4_T_slow);
    SM4_RNDS(27, 26, 25, 24, SM4_T);
    SM4_RNDS(23, 22, 21, 20, SM4_T);
    SM4_RNDS(19, 18, 17, 16, SM4_T);
    SM4_RNDS(15, 14, 13, 12, SM4_T);
    SM4_RNDS(11, 10, 9, 8, SM4_T);
    SM4_RNDS(7, 6, 5, 4, SM4_T);
    SM4_RNDS(3, 2, 1, 0, SM4_T_slow);

    store_u32_be(B3, out);
    store_u32_be(B2, out + 4);
    store_u32_be(B1, out + 8);
    store_u32_be(B0, out + 12);
}

Coverage Report

Created: 2025-12-10 06:24

Line	Count	Source
1		/*
2		* Copyright 2017-2024 The OpenSSL Project Authors. All Rights Reserved.
3		* Copyright 2017 Ribose Inc. All Rights Reserved.
4		* Ported from Ribose contributions from Botan.
5		*
6		* Licensed under the Apache License 2.0 (the "License"). You may not use
7		* this file except in compliance with the License. You can obtain a copy
8		* in the file LICENSE in the source distribution or at
9		* https://www.openssl.org/source/license.html
10		*/
11
12		#include <openssl/e_os2.h>
13		#include "crypto/sm4.h"
14
15		static const uint8_t SM4_S[256] = {
16		0xD6, 0x90, 0xE9, 0xFE, 0xCC, 0xE1, 0x3D, 0xB7, 0x16, 0xB6, 0x14, 0xC2,
17		0x28, 0xFB, 0x2C, 0x05, 0x2B, 0x67, 0x9A, 0x76, 0x2A, 0xBE, 0x04, 0xC3,
18		0xAA, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99, 0x9C, 0x42, 0x50, 0xF4,
19		0x91, 0xEF, 0x98, 0x7A, 0x33, 0x54, 0x0B, 0x43, 0xED, 0xCF, 0xAC, 0x62,
20		0xE4, 0xB3, 0x1C, 0xA9, 0xC9, 0x08, 0xE8, 0x95, 0x80, 0xDF, 0x94, 0xFA,
21		0x75, 0x8F, 0x3F, 0xA6, 0x47, 0x07, 0xA7, 0xFC, 0xF3, 0x73, 0x17, 0xBA,
22		0x83, 0x59, 0x3C, 0x19, 0xE6, 0x85, 0x4F, 0xA8, 0x68, 0x6B, 0x81, 0xB2,
23		0x71, 0x64, 0xDA, 0x8B, 0xF8, 0xEB, 0x0F, 0x4B, 0x70, 0x56, 0x9D, 0x35,
24		0x1E, 0x24, 0x0E, 0x5E, 0x63, 0x58, 0xD1, 0xA2, 0x25, 0x22, 0x7C, 0x3B,
25		0x01, 0x21, 0x78, 0x87, 0xD4, 0x00, 0x46, 0x57, 0x9F, 0xD3, 0x27, 0x52,
26		0x4C, 0x36, 0x02, 0xE7, 0xA0, 0xC4, 0xC8, 0x9E, 0xEA, 0xBF, 0x8A, 0xD2,
27		0x40, 0xC7, 0x38, 0xB5, 0xA3, 0xF7, 0xF2, 0xCE, 0xF9, 0x61, 0x15, 0xA1,
28		0xE0, 0xAE, 0x5D, 0xA4, 0x9B, 0x34, 0x1A, 0x55, 0xAD, 0x93, 0x32, 0x30,
29		0xF5, 0x8C, 0xB1, 0xE3, 0x1D, 0xF6, 0xE2, 0x2E, 0x82, 0x66, 0xCA, 0x60,
30		0xC0, 0x29, 0x23, 0xAB, 0x0D, 0x53, 0x4E, 0x6F, 0xD5, 0xDB, 0x37, 0x45,
31		0xDE, 0xFD, 0x8E, 0x2F, 0x03, 0xFF, 0x6A, 0x72, 0x6D, 0x6C, 0x5B, 0x51,
32		0x8D, 0x1B, 0xAF, 0x92, 0xBB, 0xDD, 0xBC, 0x7F, 0x11, 0xD9, 0x5C, 0x41,
33		0x1F, 0x10, 0x5A, 0xD8, 0x0A, 0xC1, 0x31, 0x88, 0xA5, 0xCD, 0x7B, 0xBD,
34		0x2D, 0x74, 0xD0, 0x12, 0xB8, 0xE5, 0xB4, 0xB0, 0x89, 0x69, 0x97, 0x4A,
35		0x0C, 0x96, 0x77, 0x7E, 0x65, 0xB9, 0xF1, 0x09, 0xC5, 0x6E, 0xC6, 0x84,
36		0x18, 0xF0, 0x7D, 0xEC, 0x3A, 0xDC, 0x4D, 0x20, 0x79, 0xEE, 0x5F, 0x3E,
37		0xD7, 0xCB, 0x39, 0x48
38		};
39
40		/*
41		* SM4_SBOX_T[j] == L(SM4_SBOX[j]).
42		*/
43		static const uint32_t SM4_SBOX_T0[256] = {
44		0x8ED55B5B, 0xD0924242, 0x4DEAA7A7, 0x06FDFBFB, 0xFCCF3333, 0x65E28787,
45		0xC93DF4F4, 0x6BB5DEDE, 0x4E165858, 0x6EB4DADA, 0x44145050, 0xCAC10B0B,
46		0x8828A0A0, 0x17F8EFEF, 0x9C2CB0B0, 0x11051414, 0x872BACAC, 0xFB669D9D,
47		0xF2986A6A, 0xAE77D9D9, 0x822AA8A8, 0x46BCFAFA, 0x14041010, 0xCFC00F0F,
48		0x02A8AAAA, 0x54451111, 0x5F134C4C, 0xBE269898, 0x6D482525, 0x9E841A1A,
49		0x1E061818, 0xFD9B6666, 0xEC9E7272, 0x4A430909, 0x10514141, 0x24F7D3D3,
50		0xD5934646, 0x53ECBFBF, 0xF89A6262, 0x927BE9E9, 0xFF33CCCC, 0x04555151,
51		0x270B2C2C, 0x4F420D0D, 0x59EEB7B7, 0xF3CC3F3F, 0x1CAEB2B2, 0xEA638989,
52		0x74E79393, 0x7FB1CECE, 0x6C1C7070, 0x0DABA6A6, 0xEDCA2727, 0x28082020,
53		0x48EBA3A3, 0xC1975656, 0x80820202, 0xA3DC7F7F, 0xC4965252, 0x12F9EBEB,
54		0xA174D5D5, 0xB38D3E3E, 0xC33FFCFC, 0x3EA49A9A, 0x5B461D1D, 0x1B071C1C,
55		0x3BA59E9E, 0x0CFFF3F3, 0x3FF0CFCF, 0xBF72CDCD, 0x4B175C5C, 0x52B8EAEA,
56		0x8F810E0E, 0x3D586565, 0xCC3CF0F0, 0x7D196464, 0x7EE59B9B, 0x91871616,
57		0x734E3D3D, 0x08AAA2A2, 0xC869A1A1, 0xC76AADAD, 0x85830606, 0x7AB0CACA,
58		0xB570C5C5, 0xF4659191, 0xB2D96B6B, 0xA7892E2E, 0x18FBE3E3, 0x47E8AFAF,
59		0x330F3C3C, 0x674A2D2D, 0xB071C1C1, 0x0E575959, 0xE99F7676, 0xE135D4D4,
60		0x661E7878, 0xB4249090, 0x360E3838, 0x265F7979, 0xEF628D8D, 0x38596161,
61		0x95D24747, 0x2AA08A8A, 0xB1259494, 0xAA228888, 0x8C7DF1F1, 0xD73BECEC,
62		0x05010404, 0xA5218484, 0x9879E1E1, 0x9B851E1E, 0x84D75353, 0x00000000,
63		0x5E471919, 0x0B565D5D, 0xE39D7E7E, 0x9FD04F4F, 0xBB279C9C, 0x1A534949,
64		0x7C4D3131, 0xEE36D8D8, 0x0A020808, 0x7BE49F9F, 0x20A28282, 0xD4C71313,
65		0xE8CB2323, 0xE69C7A7A, 0x42E9ABAB, 0x43BDFEFE, 0xA2882A2A, 0x9AD14B4B,
66		0x40410101, 0xDBC41F1F, 0xD838E0E0, 0x61B7D6D6, 0x2FA18E8E, 0x2BF4DFDF,
67		0x3AF1CBCB, 0xF6CD3B3B, 0x1DFAE7E7, 0xE5608585, 0x41155454, 0x25A38686,
68		0x60E38383, 0x16ACBABA, 0x295C7575, 0x34A69292, 0xF7996E6E, 0xE434D0D0,
69		0x721A6868, 0x01545555, 0x19AFB6B6, 0xDF914E4E, 0xFA32C8C8, 0xF030C0C0,
70		0x21F6D7D7, 0xBC8E3232, 0x75B3C6C6, 0x6FE08F8F, 0x691D7474, 0x2EF5DBDB,
71		0x6AE18B8B, 0x962EB8B8, 0x8A800A0A, 0xFE679999, 0xE2C92B2B, 0xE0618181,
72		0xC0C30303, 0x8D29A4A4, 0xAF238C8C, 0x07A9AEAE, 0x390D3434, 0x1F524D4D,
73		0x764F3939, 0xD36EBDBD, 0x81D65757, 0xB7D86F6F, 0xEB37DCDC, 0x51441515,
74		0xA6DD7B7B, 0x09FEF7F7, 0xB68C3A3A, 0x932FBCBC, 0x0F030C0C, 0x03FCFFFF,
75		0xC26BA9A9, 0xBA73C9C9, 0xD96CB5B5, 0xDC6DB1B1, 0x375A6D6D, 0x15504545,
76		0xB98F3636, 0x771B6C6C, 0x13ADBEBE, 0xDA904A4A, 0x57B9EEEE, 0xA9DE7777,
77		0x4CBEF2F2, 0x837EFDFD, 0x55114444, 0xBDDA6767, 0x2C5D7171, 0x45400505,
78		0x631F7C7C, 0x50104040, 0x325B6969, 0xB8DB6363, 0x220A2828, 0xC5C20707,
79		0xF531C4C4, 0xA88A2222, 0x31A79696, 0xF9CE3737, 0x977AEDED, 0x49BFF6F6,
80		0x992DB4B4, 0xA475D1D1, 0x90D34343, 0x5A124848, 0x58BAE2E2, 0x71E69797,
81		0x64B6D2D2, 0x70B2C2C2, 0xAD8B2626, 0xCD68A5A5, 0xCB955E5E, 0x624B2929,
82		0x3C0C3030, 0xCE945A5A, 0xAB76DDDD, 0x867FF9F9, 0xF1649595, 0x5DBBE6E6,
83		0x35F2C7C7, 0x2D092424, 0xD1C61717, 0xD66FB9B9, 0xDEC51B1B, 0x94861212,
84		0x78186060, 0x30F3C3C3, 0x897CF5F5, 0x5CEFB3B3, 0xD23AE8E8, 0xACDF7373,
85		0x794C3535, 0xA0208080, 0x9D78E5E5, 0x56EDBBBB, 0x235E7D7D, 0xC63EF8F8,
86		0x8BD45F5F, 0xE7C82F2F, 0xDD39E4E4, 0x68492121
87		};
88
89		static const uint32_t SM4_SBOX_T1[256] = {
90		0x5B8ED55B, 0x42D09242, 0xA74DEAA7, 0xFB06FDFB, 0x33FCCF33, 0x8765E287,
91		0xF4C93DF4, 0xDE6BB5DE, 0x584E1658, 0xDA6EB4DA, 0x50441450, 0x0BCAC10B,
92		0xA08828A0, 0xEF17F8EF, 0xB09C2CB0, 0x14110514, 0xAC872BAC, 0x9DFB669D,
93		0x6AF2986A, 0xD9AE77D9, 0xA8822AA8, 0xFA46BCFA, 0x10140410, 0x0FCFC00F,
94		0xAA02A8AA, 0x11544511, 0x4C5F134C, 0x98BE2698, 0x256D4825, 0x1A9E841A,
95		0x181E0618, 0x66FD9B66, 0x72EC9E72, 0x094A4309, 0x41105141, 0xD324F7D3,
96		0x46D59346, 0xBF53ECBF, 0x62F89A62, 0xE9927BE9, 0xCCFF33CC, 0x51045551,
97		0x2C270B2C, 0x0D4F420D, 0xB759EEB7, 0x3FF3CC3F, 0xB21CAEB2, 0x89EA6389,
98		0x9374E793, 0xCE7FB1CE, 0x706C1C70, 0xA60DABA6, 0x27EDCA27, 0x20280820,
99		0xA348EBA3, 0x56C19756, 0x02808202, 0x7FA3DC7F, 0x52C49652, 0xEB12F9EB,
100		0xD5A174D5, 0x3EB38D3E, 0xFCC33FFC, 0x9A3EA49A, 0x1D5B461D, 0x1C1B071C,
101		0x9E3BA59E, 0xF30CFFF3, 0xCF3FF0CF, 0xCDBF72CD, 0x5C4B175C, 0xEA52B8EA,
102		0x0E8F810E, 0x653D5865, 0xF0CC3CF0, 0x647D1964, 0x9B7EE59B, 0x16918716,
103		0x3D734E3D, 0xA208AAA2, 0xA1C869A1, 0xADC76AAD, 0x06858306, 0xCA7AB0CA,
104		0xC5B570C5, 0x91F46591, 0x6BB2D96B, 0x2EA7892E, 0xE318FBE3, 0xAF47E8AF,
105		0x3C330F3C, 0x2D674A2D, 0xC1B071C1, 0x590E5759, 0x76E99F76, 0xD4E135D4,
106		0x78661E78, 0x90B42490, 0x38360E38, 0x79265F79, 0x8DEF628D, 0x61385961,
107		0x4795D247, 0x8A2AA08A, 0x94B12594, 0x88AA2288, 0xF18C7DF1, 0xECD73BEC,
108		0x04050104, 0x84A52184, 0xE19879E1, 0x1E9B851E, 0x5384D753, 0x00000000,
109		0x195E4719, 0x5D0B565D, 0x7EE39D7E, 0x4F9FD04F, 0x9CBB279C, 0x491A5349,
110		0x317C4D31, 0xD8EE36D8, 0x080A0208, 0x9F7BE49F, 0x8220A282, 0x13D4C713,
111		0x23E8CB23, 0x7AE69C7A, 0xAB42E9AB, 0xFE43BDFE, 0x2AA2882A, 0x4B9AD14B,
112		0x01404101, 0x1FDBC41F, 0xE0D838E0, 0xD661B7D6, 0x8E2FA18E, 0xDF2BF4DF,
113		0xCB3AF1CB, 0x3BF6CD3B, 0xE71DFAE7, 0x85E56085, 0x54411554, 0x8625A386,
114		0x8360E383, 0xBA16ACBA, 0x75295C75, 0x9234A692, 0x6EF7996E, 0xD0E434D0,
115		0x68721A68, 0x55015455, 0xB619AFB6, 0x4EDF914E, 0xC8FA32C8, 0xC0F030C0,
116		0xD721F6D7, 0x32BC8E32, 0xC675B3C6, 0x8F6FE08F, 0x74691D74, 0xDB2EF5DB,
117		0x8B6AE18B, 0xB8962EB8, 0x0A8A800A, 0x99FE6799, 0x2BE2C92B, 0x81E06181,
118		0x03C0C303, 0xA48D29A4, 0x8CAF238C, 0xAE07A9AE, 0x34390D34, 0x4D1F524D,
119		0x39764F39, 0xBDD36EBD, 0x5781D657, 0x6FB7D86F, 0xDCEB37DC, 0x15514415,
120		0x7BA6DD7B, 0xF709FEF7, 0x3AB68C3A, 0xBC932FBC, 0x0C0F030C, 0xFF03FCFF,
121		0xA9C26BA9, 0xC9BA73C9, 0xB5D96CB5, 0xB1DC6DB1, 0x6D375A6D, 0x45155045,
122		0x36B98F36, 0x6C771B6C, 0xBE13ADBE, 0x4ADA904A, 0xEE57B9EE, 0x77A9DE77,
123		0xF24CBEF2, 0xFD837EFD, 0x44551144, 0x67BDDA67, 0x712C5D71, 0x05454005,
124		0x7C631F7C, 0x40501040, 0x69325B69, 0x63B8DB63, 0x28220A28, 0x07C5C207,
125		0xC4F531C4, 0x22A88A22, 0x9631A796, 0x37F9CE37, 0xED977AED, 0xF649BFF6,
126		0xB4992DB4, 0xD1A475D1, 0x4390D343, 0x485A1248, 0xE258BAE2, 0x9771E697,
127		0xD264B6D2, 0xC270B2C2, 0x26AD8B26, 0xA5CD68A5, 0x5ECB955E, 0x29624B29,
128		0x303C0C30, 0x5ACE945A, 0xDDAB76DD, 0xF9867FF9, 0x95F16495, 0xE65DBBE6,
129		0xC735F2C7, 0x242D0924, 0x17D1C617, 0xB9D66FB9, 0x1BDEC51B, 0x12948612,
130		0x60781860, 0xC330F3C3, 0xF5897CF5, 0xB35CEFB3, 0xE8D23AE8, 0x73ACDF73,
131		0x35794C35, 0x80A02080, 0xE59D78E5, 0xBB56EDBB, 0x7D235E7D, 0xF8C63EF8,
132		0x5F8BD45F, 0x2FE7C82F, 0xE4DD39E4, 0x21684921
133		};
134
135		static const uint32_t SM4_SBOX_T2[256] = {
136		0x5B5B8ED5, 0x4242D092, 0xA7A74DEA, 0xFBFB06FD, 0x3333FCCF, 0x878765E2,
137		0xF4F4C93D, 0xDEDE6BB5, 0x58584E16, 0xDADA6EB4, 0x50504414, 0x0B0BCAC1,
138		0xA0A08828, 0xEFEF17F8, 0xB0B09C2C, 0x14141105, 0xACAC872B, 0x9D9DFB66,
139		0x6A6AF298, 0xD9D9AE77, 0xA8A8822A, 0xFAFA46BC, 0x10101404, 0x0F0FCFC0,
140		0xAAAA02A8, 0x11115445, 0x4C4C5F13, 0x9898BE26, 0x25256D48, 0x1A1A9E84,
141		0x18181E06, 0x6666FD9B, 0x7272EC9E, 0x09094A43, 0x41411051, 0xD3D324F7,
142		0x4646D593, 0xBFBF53EC, 0x6262F89A, 0xE9E9927B, 0xCCCCFF33, 0x51510455,
143		0x2C2C270B, 0x0D0D4F42, 0xB7B759EE, 0x3F3FF3CC, 0xB2B21CAE, 0x8989EA63,
144		0x939374E7, 0xCECE7FB1, 0x70706C1C, 0xA6A60DAB, 0x2727EDCA, 0x20202808,
145		0xA3A348EB, 0x5656C197, 0x02028082, 0x7F7FA3DC, 0x5252C496, 0xEBEB12F9,
146		0xD5D5A174, 0x3E3EB38D, 0xFCFCC33F, 0x9A9A3EA4, 0x1D1D5B46, 0x1C1C1B07,
147		0x9E9E3BA5, 0xF3F30CFF, 0xCFCF3FF0, 0xCDCDBF72, 0x5C5C4B17, 0xEAEA52B8,
148		0x0E0E8F81, 0x65653D58, 0xF0F0CC3C, 0x64647D19, 0x9B9B7EE5, 0x16169187,
149		0x3D3D734E, 0xA2A208AA, 0xA1A1C869, 0xADADC76A, 0x06068583, 0xCACA7AB0,
150		0xC5C5B570, 0x9191F465, 0x6B6BB2D9, 0x2E2EA789, 0xE3E318FB, 0xAFAF47E8,
151		0x3C3C330F, 0x2D2D674A, 0xC1C1B071, 0x59590E57, 0x7676E99F, 0xD4D4E135,
152		0x7878661E, 0x9090B424, 0x3838360E, 0x7979265F, 0x8D8DEF62, 0x61613859,
153		0x474795D2, 0x8A8A2AA0, 0x9494B125, 0x8888AA22, 0xF1F18C7D, 0xECECD73B,
154		0x04040501, 0x8484A521, 0xE1E19879, 0x1E1E9B85, 0x535384D7, 0x00000000,
155		0x19195E47, 0x5D5D0B56, 0x7E7EE39D, 0x4F4F9FD0, 0x9C9CBB27, 0x49491A53,
156		0x31317C4D, 0xD8D8EE36, 0x08080A02, 0x9F9F7BE4, 0x828220A2, 0x1313D4C7,
157		0x2323E8CB, 0x7A7AE69C, 0xABAB42E9, 0xFEFE43BD, 0x2A2AA288, 0x4B4B9AD1,
158		0x01014041, 0x1F1FDBC4, 0xE0E0D838, 0xD6D661B7, 0x8E8E2FA1, 0xDFDF2BF4,
159		0xCBCB3AF1, 0x3B3BF6CD, 0xE7E71DFA, 0x8585E560, 0x54544115, 0x868625A3,
160		0x838360E3, 0xBABA16AC, 0x7575295C, 0x929234A6, 0x6E6EF799, 0xD0D0E434,
161		0x6868721A, 0x55550154, 0xB6B619AF, 0x4E4EDF91, 0xC8C8FA32, 0xC0C0F030,
162		0xD7D721F6, 0x3232BC8E, 0xC6C675B3, 0x8F8F6FE0, 0x7474691D, 0xDBDB2EF5,
163		0x8B8B6AE1, 0xB8B8962E, 0x0A0A8A80, 0x9999FE67, 0x2B2BE2C9, 0x8181E061,
164		0x0303C0C3, 0xA4A48D29, 0x8C8CAF23, 0xAEAE07A9, 0x3434390D, 0x4D4D1F52,
165		0x3939764F, 0xBDBDD36E, 0x575781D6, 0x6F6FB7D8, 0xDCDCEB37, 0x15155144,
166		0x7B7BA6DD, 0xF7F709FE, 0x3A3AB68C, 0xBCBC932F, 0x0C0C0F03, 0xFFFF03FC,
167		0xA9A9C26B, 0xC9C9BA73, 0xB5B5D96C, 0xB1B1DC6D, 0x6D6D375A, 0x45451550,
168		0x3636B98F, 0x6C6C771B, 0xBEBE13AD, 0x4A4ADA90, 0xEEEE57B9, 0x7777A9DE,
169		0xF2F24CBE, 0xFDFD837E, 0x44445511, 0x6767BDDA, 0x71712C5D, 0x05054540,
170		0x7C7C631F, 0x40405010, 0x6969325B, 0x6363B8DB, 0x2828220A, 0x0707C5C2,
171		0xC4C4F531, 0x2222A88A, 0x969631A7, 0x3737F9CE, 0xEDED977A, 0xF6F649BF,
172		0xB4B4992D, 0xD1D1A475, 0x434390D3, 0x48485A12, 0xE2E258BA, 0x979771E6,
173		0xD2D264B6, 0xC2C270B2, 0x2626AD8B, 0xA5A5CD68, 0x5E5ECB95, 0x2929624B,
174		0x30303C0C, 0x5A5ACE94, 0xDDDDAB76, 0xF9F9867F, 0x9595F164, 0xE6E65DBB,
175		0xC7C735F2, 0x24242D09, 0x1717D1C6, 0xB9B9D66F, 0x1B1BDEC5, 0x12129486,
176		0x60607818, 0xC3C330F3, 0xF5F5897C, 0xB3B35CEF, 0xE8E8D23A, 0x7373ACDF,
177		0x3535794C, 0x8080A020, 0xE5E59D78, 0xBBBB56ED, 0x7D7D235E, 0xF8F8C63E,
178		0x5F5F8BD4, 0x2F2FE7C8, 0xE4E4DD39, 0x21216849
179		};
180
181		static const uint32_t SM4_SBOX_T3[256] = {
182		0xD55B5B8E, 0x924242D0, 0xEAA7A74D, 0xFDFBFB06, 0xCF3333FC, 0xE2878765,
183		0x3DF4F4C9, 0xB5DEDE6B, 0x1658584E, 0xB4DADA6E, 0x14505044, 0xC10B0BCA,
184		0x28A0A088, 0xF8EFEF17, 0x2CB0B09C, 0x05141411, 0x2BACAC87, 0x669D9DFB,
185		0x986A6AF2, 0x77D9D9AE, 0x2AA8A882, 0xBCFAFA46, 0x04101014, 0xC00F0FCF,
186		0xA8AAAA02, 0x45111154, 0x134C4C5F, 0x269898BE, 0x4825256D, 0x841A1A9E,
187		0x0618181E, 0x9B6666FD, 0x9E7272EC, 0x4309094A, 0x51414110, 0xF7D3D324,
188		0x934646D5, 0xECBFBF53, 0x9A6262F8, 0x7BE9E992, 0x33CCCCFF, 0x55515104,
189		0x0B2C2C27, 0x420D0D4F, 0xEEB7B759, 0xCC3F3FF3, 0xAEB2B21C, 0x638989EA,
190		0xE7939374, 0xB1CECE7F, 0x1C70706C, 0xABA6A60D, 0xCA2727ED, 0x08202028,
191		0xEBA3A348, 0x975656C1, 0x82020280, 0xDC7F7FA3, 0x965252C4, 0xF9EBEB12,
192		0x74D5D5A1, 0x8D3E3EB3, 0x3FFCFCC3, 0xA49A9A3E, 0x461D1D5B, 0x071C1C1B,
193		0xA59E9E3B, 0xFFF3F30C, 0xF0CFCF3F, 0x72CDCDBF, 0x175C5C4B, 0xB8EAEA52,
194		0x810E0E8F, 0x5865653D, 0x3CF0F0CC, 0x1964647D, 0xE59B9B7E, 0x87161691,
195		0x4E3D3D73, 0xAAA2A208, 0x69A1A1C8, 0x6AADADC7, 0x83060685, 0xB0CACA7A,
196		0x70C5C5B5, 0x659191F4, 0xD96B6BB2, 0x892E2EA7, 0xFBE3E318, 0xE8AFAF47,
197		0x0F3C3C33, 0x4A2D2D67, 0x71C1C1B0, 0x5759590E, 0x9F7676E9, 0x35D4D4E1,
198		0x1E787866, 0x249090B4, 0x0E383836, 0x5F797926, 0x628D8DEF, 0x59616138,
199		0xD2474795, 0xA08A8A2A, 0x259494B1, 0x228888AA, 0x7DF1F18C, 0x3BECECD7,
200		0x01040405, 0x218484A5, 0x79E1E198, 0x851E1E9B, 0xD7535384, 0x00000000,
201		0x4719195E, 0x565D5D0B, 0x9D7E7EE3, 0xD04F4F9F, 0x279C9CBB, 0x5349491A,
202		0x4D31317C, 0x36D8D8EE, 0x0208080A, 0xE49F9F7B, 0xA2828220, 0xC71313D4,
203		0xCB2323E8, 0x9C7A7AE6, 0xE9ABAB42, 0xBDFEFE43, 0x882A2AA2, 0xD14B4B9A,
204		0x41010140, 0xC41F1FDB, 0x38E0E0D8, 0xB7D6D661, 0xA18E8E2F, 0xF4DFDF2B,
205		0xF1CBCB3A, 0xCD3B3BF6, 0xFAE7E71D, 0x608585E5, 0x15545441, 0xA3868625,
206		0xE3838360, 0xACBABA16, 0x5C757529, 0xA6929234, 0x996E6EF7, 0x34D0D0E4,
207		0x1A686872, 0x54555501, 0xAFB6B619, 0x914E4EDF, 0x32C8C8FA, 0x30C0C0F0,
208		0xF6D7D721, 0x8E3232BC, 0xB3C6C675, 0xE08F8F6F, 0x1D747469, 0xF5DBDB2E,
209		0xE18B8B6A, 0x2EB8B896, 0x800A0A8A, 0x679999FE, 0xC92B2BE2, 0x618181E0,
210		0xC30303C0, 0x29A4A48D, 0x238C8CAF, 0xA9AEAE07, 0x0D343439, 0x524D4D1F,
211		0x4F393976, 0x6EBDBDD3, 0xD6575781, 0xD86F6FB7, 0x37DCDCEB, 0x44151551,
212		0xDD7B7BA6, 0xFEF7F709, 0x8C3A3AB6, 0x2FBCBC93, 0x030C0C0F, 0xFCFFFF03,
213		0x6BA9A9C2, 0x73C9C9BA, 0x6CB5B5D9, 0x6DB1B1DC, 0x5A6D6D37, 0x50454515,
214		0x8F3636B9, 0x1B6C6C77, 0xADBEBE13, 0x904A4ADA, 0xB9EEEE57, 0xDE7777A9,
215		0xBEF2F24C, 0x7EFDFD83, 0x11444455, 0xDA6767BD, 0x5D71712C, 0x40050545,
216		0x1F7C7C63, 0x10404050, 0x5B696932, 0xDB6363B8, 0x0A282822, 0xC20707C5,
217		0x31C4C4F5, 0x8A2222A8, 0xA7969631, 0xCE3737F9, 0x7AEDED97, 0xBFF6F649,
218		0x2DB4B499, 0x75D1D1A4, 0xD3434390, 0x1248485A, 0xBAE2E258, 0xE6979771,
219		0xB6D2D264, 0xB2C2C270, 0x8B2626AD, 0x68A5A5CD, 0x955E5ECB, 0x4B292962,
220		0x0C30303C, 0x945A5ACE, 0x76DDDDAB, 0x7FF9F986, 0x649595F1, 0xBBE6E65D,
221		0xF2C7C735, 0x0924242D, 0xC61717D1, 0x6FB9B9D6, 0xC51B1BDE, 0x86121294,
222		0x18606078, 0xF3C3C330, 0x7CF5F589, 0xEFB3B35C, 0x3AE8E8D2, 0xDF7373AC,
223		0x4C353579, 0x208080A0, 0x78E5E59D, 0xEDBBBB56, 0x5E7D7D23, 0x3EF8F8C6,
224		0xD45F5F8B, 0xC82F2FE7, 0x39E4E4DD, 0x49212168
225		};
226
227		static ossl_inline uint32_t rotl(uint32_t a, uint8_t n)
228	0	{
229	0	return (a << n) \| (a >> (32 - n));
230	0	}
231
232		static ossl_inline uint32_t load_u32_be(const uint8_t *b, uint32_t n)
233	0	{
234	0	return ((uint32_t)b[4 * n] << 24) \| ((uint32_t)b[4 * n + 1] << 16) \| ((uint32_t)b[4 * n + 2] << 8) \| ((uint32_t)b[4 * n + 3]);
235	0	}
236
237		static ossl_inline void store_u32_be(uint32_t v, uint8_t *b)
238	0	{
239	0	b[0] = (uint8_t)(v >> 24);
240	0	b[1] = (uint8_t)(v >> 16);
241	0	b[2] = (uint8_t)(v >> 8);
242	0	b[3] = (uint8_t)(v);
243	0	}
244
245		static ossl_inline uint32_t SM4_T_non_lin_sub(uint32_t X)
246	0	{
247	0	uint32_t t = 0;
248
249	0	t \|= ((uint32_t)SM4_S[(uint8_t)(X >> 24)]) << 24;
250	0	t \|= ((uint32_t)SM4_S[(uint8_t)(X >> 16)]) << 16;
251	0	t \|= ((uint32_t)SM4_S[(uint8_t)(X >> 8)]) << 8;
252	0	t \|= SM4_S[(uint8_t)X];
253
254	0	return t;
255	0	}
256
257		static ossl_inline uint32_t SM4_T_slow(uint32_t X)
258	0	{
259	0	uint32_t t = SM4_T_non_lin_sub(X);
260
261		/*
262		* L linear transform
263		*/
264	0	return t ^ rotl(t, 2) ^ rotl(t, 10) ^ rotl(t, 18) ^ rotl(t, 24);
265	0	}
266
267		static ossl_inline uint32_t SM4_T(uint32_t X)
268	0	{
269	0	return SM4_SBOX_T0[(uint8_t)(X >> 24)] ^ SM4_SBOX_T1[(uint8_t)(X >> 16)] ^ SM4_SBOX_T2[(uint8_t)(X >> 8)] ^ SM4_SBOX_T3[(uint8_t)X];
270	0	}
271
272		static ossl_inline uint32_t SM4_key_sub(uint32_t X)
273	0	{
274	0	uint32_t t = SM4_T_non_lin_sub(X);
275
276	0	return t ^ rotl(t, 13) ^ rotl(t, 23);
277	0	}
278
279		int ossl_sm4_set_key(const uint8_t key, SM4_KEY ks)
280	0	{
281		/*
282		* Family Key
283		*/
284	0	static const uint32_t FK[4] = {
285	0	0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc
286	0	};
287
288		/*
289		* Constant Key
290		*/
291	0	static const uint32_t CK[32] = {
292	0	0x00070E15, 0x1C232A31, 0x383F464D, 0x545B6269,
293	0	0x70777E85, 0x8C939AA1, 0xA8AFB6BD, 0xC4CBD2D9,
294	0	0xE0E7EEF5, 0xFC030A11, 0x181F262D, 0x343B4249,
295	0	0x50575E65, 0x6C737A81, 0x888F969D, 0xA4ABB2B9,
296	0	0xC0C7CED5, 0xDCE3EAF1, 0xF8FF060D, 0x141B2229,
297	0	0x30373E45, 0x4C535A61, 0x686F767D, 0x848B9299,
298	0	0xA0A7AEB5, 0xBCC3CAD1, 0xD8DFE6ED, 0xF4FB0209,
299	0	0x10171E25, 0x2C333A41, 0x484F565D, 0x646B7279
300	0	};
301
302	0	uint32_t K[4];
303	0	int i;
304
305	0	K[0] = load_u32_be(key, 0) ^ FK[0];
306	0	K[1] = load_u32_be(key, 1) ^ FK[1];
307	0	K[2] = load_u32_be(key, 2) ^ FK[2];
308	0	K[3] = load_u32_be(key, 3) ^ FK[3];
309
310	0	for (i = 0; i < SM4_KEY_SCHEDULE; i = i + 4) {
311	0	K[0] ^= SM4_key_sub(K[1] ^ K[2] ^ K[3] ^ CK[i]);
312	0	K[1] ^= SM4_key_sub(K[2] ^ K[3] ^ K[0] ^ CK[i + 1]);
313	0	K[2] ^= SM4_key_sub(K[3] ^ K[0] ^ K[1] ^ CK[i + 2]);
314	0	K[3] ^= SM4_key_sub(K[0] ^ K[1] ^ K[2] ^ CK[i + 3]);
315	0	ks->rk[i] = K[0];
316	0	ks->rk[i + 1] = K[1];
317	0	ks->rk[i + 2] = K[2];
318	0	ks->rk[i + 3] = K[3];
319	0	}
320
321	0	return 1;
322	0	}
323
324		#define SM4_RNDS(k0, k1, k2, k3, F) \
325	0	do { \
326	0	B0 ^= F(B1 ^ B2 ^ B3 ^ ks->rk[k0]); \
327	0	B1 ^= F(B0 ^ B2 ^ B3 ^ ks->rk[k1]); \
328	0	B2 ^= F(B0 ^ B1 ^ B3 ^ ks->rk[k2]); \
329	0	B3 ^= F(B0 ^ B1 ^ B2 ^ ks->rk[k3]); \
330	0	} while (0)
331
332		void ossl_sm4_encrypt(const uint8_t in, uint8_t out, const SM4_KEY *ks)
333	0	{
334	0	uint32_t B0 = load_u32_be(in, 0);
335	0	uint32_t B1 = load_u32_be(in, 1);
336	0	uint32_t B2 = load_u32_be(in, 2);
337	0	uint32_t B3 = load_u32_be(in, 3);
338
339		/*
340		* Uses byte-wise sbox in the first and last rounds to provide some
341		* protection from cache based side channels.
342		*/
343	0	SM4_RNDS(0, 1, 2, 3, SM4_T_slow);
344	0	SM4_RNDS(4, 5, 6, 7, SM4_T);
345	0	SM4_RNDS(8, 9, 10, 11, SM4_T);
346	0	SM4_RNDS(12, 13, 14, 15, SM4_T);
347	0	SM4_RNDS(16, 17, 18, 19, SM4_T);
348	0	SM4_RNDS(20, 21, 22, 23, SM4_T);
349	0	SM4_RNDS(24, 25, 26, 27, SM4_T);
350	0	SM4_RNDS(28, 29, 30, 31, SM4_T_slow);
351
352	0	store_u32_be(B3, out);
353	0	store_u32_be(B2, out + 4);
354	0	store_u32_be(B1, out + 8);
355	0	store_u32_be(B0, out + 12);
356	0	}
357
358		void ossl_sm4_decrypt(const uint8_t in, uint8_t out, const SM4_KEY *ks)
359	0	{
360	0	uint32_t B0 = load_u32_be(in, 0);
361	0	uint32_t B1 = load_u32_be(in, 1);
362	0	uint32_t B2 = load_u32_be(in, 2);
363	0	uint32_t B3 = load_u32_be(in, 3);
364
365	0	SM4_RNDS(31, 30, 29, 28, SM4_T_slow);
366	0	SM4_RNDS(27, 26, 25, 24, SM4_T);
367	0	SM4_RNDS(23, 22, 21, 20, SM4_T);
368	0	SM4_RNDS(19, 18, 17, 16, SM4_T);
369	0	SM4_RNDS(15, 14, 13, 12, SM4_T);
370	0	SM4_RNDS(11, 10, 9, 8, SM4_T);
371	0	SM4_RNDS(7, 6, 5, 4, SM4_T);
372	0	SM4_RNDS(3, 2, 1, 0, SM4_T_slow);
373
374	0	store_u32_be(B3, out);
375	0	store_u32_be(B2, out + 4);
376	0	store_u32_be(B1, out + 8);
377	0	store_u32_be(B0, out + 12);
378	0	}