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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
package org.bouncycastle.crypto.engines;
import org.bouncycastle.crypto.BlockCipher;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.crypto.CryptoServicesRegistrar;
import org.bouncycastle.crypto.DataLengthException;
import org.bouncycastle.crypto.OutputLengthException;
import org.bouncycastle.crypto.constraints.DefaultServiceProperties;
import org.bouncycastle.crypto.params.KeyParameter;
import org.bouncycastle.util.Pack;
/**
* an implementation of the AES (Rijndael), from FIPS-197.
*
* For further details see: https://csrc.nist.gov/encryption/aes/.
*
* This implementation is based on optimizations from Dr. Brian Gladman's paper and C code at
* https://fp.gladman.plus.com/cryptography_technology/rijndael/
*
* There are three levels of tradeoff of speed vs memory
* Because java has no preprocessor, they are written as three separate classes from which to choose
*
* The fastest uses 8Kbytes of static tables to precompute round calculations, 4 256 word tables for encryption
* and 4 for decryption.
*
* The middle performance version uses only one 256 word table for each, for a total of 2Kbytes,
* adding 12 rotate operations per round to compute the values contained in the other tables from
* the contents of the first
*
* The slowest version uses no static tables at all and computes the values in each round
*
*
* This file contains the fast version with 8Kbytes of static tables for round precomputation.
*
* @deprecated unfortunately this class is has a few side channel issues. In an environment where encryption/decryption may be closely observed it should not be used.
*/
public class AESFastEngine
implements BlockCipher
{
// The S box
private static final byte[] S = {
(byte)99, (byte)124, (byte)119, (byte)123, (byte)242, (byte)107, (byte)111, (byte)197,
(byte)48, (byte)1, (byte)103, (byte)43, (byte)254, (byte)215, (byte)171, (byte)118,
(byte)202, (byte)130, (byte)201, (byte)125, (byte)250, (byte)89, (byte)71, (byte)240,
(byte)173, (byte)212, (byte)162, (byte)175, (byte)156, (byte)164, (byte)114, (byte)192,
(byte)183, (byte)253, (byte)147, (byte)38, (byte)54, (byte)63, (byte)247, (byte)204,
(byte)52, (byte)165, (byte)229, (byte)241, (byte)113, (byte)216, (byte)49, (byte)21,
(byte)4, (byte)199, (byte)35, (byte)195, (byte)24, (byte)150, (byte)5, (byte)154,
(byte)7, (byte)18, (byte)128, (byte)226, (byte)235, (byte)39, (byte)178, (byte)117,
(byte)9, (byte)131, (byte)44, (byte)26, (byte)27, (byte)110, (byte)90, (byte)160,
(byte)82, (byte)59, (byte)214, (byte)179, (byte)41, (byte)227, (byte)47, (byte)132,
(byte)83, (byte)209, (byte)0, (byte)237, (byte)32, (byte)252, (byte)177, (byte)91,
(byte)106, (byte)203, (byte)190, (byte)57, (byte)74, (byte)76, (byte)88, (byte)207,
(byte)208, (byte)239, (byte)170, (byte)251, (byte)67, (byte)77, (byte)51, (byte)133,
(byte)69, (byte)249, (byte)2, (byte)127, (byte)80, (byte)60, (byte)159, (byte)168,
(byte)81, (byte)163, (byte)64, (byte)143, (byte)146, (byte)157, (byte)56, (byte)245,
(byte)188, (byte)182, (byte)218, (byte)33, (byte)16, (byte)255, (byte)243, (byte)210,
(byte)205, (byte)12, (byte)19, (byte)236, (byte)95, (byte)151, (byte)68, (byte)23,
(byte)196, (byte)167, (byte)126, (byte)61, (byte)100, (byte)93, (byte)25, (byte)115,
(byte)96, (byte)129, (byte)79, (byte)220, (byte)34, (byte)42, (byte)144, (byte)136,
(byte)70, (byte)238, (byte)184, (byte)20, (byte)222, (byte)94, (byte)11, (byte)219,
(byte)224, (byte)50, (byte)58, (byte)10, (byte)73, (byte)6, (byte)36, (byte)92,
(byte)194, (byte)211, (byte)172, (byte)98, (byte)145, (byte)149, (byte)228, (byte)121,
(byte)231, (byte)200, (byte)55, (byte)109, (byte)141, (byte)213, (byte)78, (byte)169,
(byte)108, (byte)86, (byte)244, (byte)234, (byte)101, (byte)122, (byte)174, (byte)8,
(byte)186, (byte)120, (byte)37, (byte)46, (byte)28, (byte)166, (byte)180, (byte)198,
(byte)232, (byte)221, (byte)116, (byte)31, (byte)75, (byte)189, (byte)139, (byte)138,
(byte)112, (byte)62, (byte)181, (byte)102, (byte)72, (byte)3, (byte)246, (byte)14,
(byte)97, (byte)53, (byte)87, (byte)185, (byte)134, (byte)193, (byte)29, (byte)158,
(byte)225, (byte)248, (byte)152, (byte)17, (byte)105, (byte)217, (byte)142, (byte)148,
(byte)155, (byte)30, (byte)135, (byte)233, (byte)206, (byte)85, (byte)40, (byte)223,
(byte)140, (byte)161, (byte)137, (byte)13, (byte)191, (byte)230, (byte)66, (byte)104,
(byte)65, (byte)153, (byte)45, (byte)15, (byte)176, (byte)84, (byte)187, (byte)22,
};
// The inverse S-box
private static final byte[] Si = {
(byte)82, (byte)9, (byte)106, (byte)213, (byte)48, (byte)54, (byte)165, (byte)56,
(byte)191, (byte)64, (byte)163, (byte)158, (byte)129, (byte)243, (byte)215, (byte)251,
(byte)124, (byte)227, (byte)57, (byte)130, (byte)155, (byte)47, (byte)255, (byte)135,
(byte)52, (byte)142, (byte)67, (byte)68, (byte)196, (byte)222, (byte)233, (byte)203,
(byte)84, (byte)123, (byte)148, (byte)50, (byte)166, (byte)194, (byte)35, (byte)61,
(byte)238, (byte)76, (byte)149, (byte)11, (byte)66, (byte)250, (byte)195, (byte)78,
(byte)8, (byte)46, (byte)161, (byte)102, (byte)40, (byte)217, (byte)36, (byte)178,
(byte)118, (byte)91, (byte)162, (byte)73, (byte)109, (byte)139, (byte)209, (byte)37,
(byte)114, (byte)248, (byte)246, (byte)100, (byte)134, (byte)104, (byte)152, (byte)22,
(byte)212, (byte)164, (byte)92, (byte)204, (byte)93, (byte)101, (byte)182, (byte)146,
(byte)108, (byte)112, (byte)72, (byte)80, (byte)253, (byte)237, (byte)185, (byte)218,
(byte)94, (byte)21, (byte)70, (byte)87, (byte)167, (byte)141, (byte)157, (byte)132,
(byte)144, (byte)216, (byte)171, (byte)0, (byte)140, (byte)188, (byte)211, (byte)10,
(byte)247, (byte)228, (byte)88, (byte)5, (byte)184, (byte)179, (byte)69, (byte)6,
(byte)208, (byte)44, (byte)30, (byte)143, (byte)202, (byte)63, (byte)15, (byte)2,
(byte)193, (byte)175, (byte)189, (byte)3, (byte)1, (byte)19, (byte)138, (byte)107,
(byte)58, (byte)145, (byte)17, (byte)65, (byte)79, (byte)103, (byte)220, (byte)234,
(byte)151, (byte)242, (byte)207, (byte)206, (byte)240, (byte)180, (byte)230, (byte)115,
(byte)150, (byte)172, (byte)116, (byte)34, (byte)231, (byte)173, (byte)53, (byte)133,
(byte)226, (byte)249, (byte)55, (byte)232, (byte)28, (byte)117, (byte)223, (byte)110,
(byte)71, (byte)241, (byte)26, (byte)113, (byte)29, (byte)41, (byte)197, (byte)137,
(byte)111, (byte)183, (byte)98, (byte)14, (byte)170, (byte)24, (byte)190, (byte)27,
(byte)252, (byte)86, (byte)62, (byte)75, (byte)198, (byte)210, (byte)121, (byte)32,
(byte)154, (byte)219, (byte)192, (byte)254, (byte)120, (byte)205, (byte)90, (byte)244,
(byte)31, (byte)221, (byte)168, (byte)51, (byte)136, (byte)7, (byte)199, (byte)49,
(byte)177, (byte)18, (byte)16, (byte)89, (byte)39, (byte)128, (byte)236, (byte)95,
(byte)96, (byte)81, (byte)127, (byte)169, (byte)25, (byte)181, (byte)74, (byte)13,
(byte)45, (byte)229, (byte)122, (byte)159, (byte)147, (byte)201, (byte)156, (byte)239,
(byte)160, (byte)224, (byte)59, (byte)77, (byte)174, (byte)42, (byte)245, (byte)176,
(byte)200, (byte)235, (byte)187, (byte)60, (byte)131, (byte)83, (byte)153, (byte)97,
(byte)23, (byte)43, (byte)4, (byte)126, (byte)186, (byte)119, (byte)214, (byte)38,
(byte)225, (byte)105, (byte)20, (byte)99, (byte)85, (byte)33, (byte)12, (byte)125,
};
// vector used in calculating key schedule (powers of x in GF(256))
private static final int[] rcon = {
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a,
0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91 };
// precomputation tables of calculations for rounds
private static final int[] T =
{
// T0
0xa56363c6, 0x847c7cf8, 0x997777ee, 0x8d7b7bf6, 0x0df2f2ff,
0xbd6b6bd6, 0xb16f6fde, 0x54c5c591, 0x50303060, 0x03010102,
0xa96767ce, 0x7d2b2b56, 0x19fefee7, 0x62d7d7b5, 0xe6abab4d,
0x9a7676ec, 0x45caca8f, 0x9d82821f, 0x40c9c989, 0x877d7dfa,
0x15fafaef, 0xeb5959b2, 0xc947478e, 0x0bf0f0fb, 0xecadad41,
0x67d4d4b3, 0xfda2a25f, 0xeaafaf45, 0xbf9c9c23, 0xf7a4a453,
0x967272e4, 0x5bc0c09b, 0xc2b7b775, 0x1cfdfde1, 0xae93933d,
0x6a26264c, 0x5a36366c, 0x413f3f7e, 0x02f7f7f5, 0x4fcccc83,
0x5c343468, 0xf4a5a551, 0x34e5e5d1, 0x08f1f1f9, 0x937171e2,
0x73d8d8ab, 0x53313162, 0x3f15152a, 0x0c040408, 0x52c7c795,
0x65232346, 0x5ec3c39d, 0x28181830, 0xa1969637, 0x0f05050a,
0xb59a9a2f, 0x0907070e, 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, 0x00000000, 0x2cededc1, 0x60202040,
0x1ffcfce3, 0xc8b1b179, 0xed5b5bb6, 0xbe6a6ad4, 0x46cbcb8d,
0xd9bebe67, 0x4b393972, 0xde4a4a94, 0xd44c4c98, 0xe85858b0,
0x4acfcf85, 0x6bd0d0bb, 0x2aefefc5, 0xe5aaaa4f, 0x16fbfbed,
0xc5434386, 0xd74d4d9a, 0x55333366, 0x94858511, 0xcf45458a,
0x10f9f9e9, 0x06020204, 0x817f7ffe, 0xf05050a0, 0x443c3c78,
0xba9f9f25, 0xe3a8a84b, 0xf35151a2, 0xfea3a35d, 0xc0404080,
0x8a8f8f05, 0xad92923f, 0xbc9d9d21, 0x48383870, 0x04f5f5f1,
0xdfbcbc63, 0xc1b6b677, 0x75dadaaf, 0x63212142, 0x30101020,
0x1affffe5, 0x0ef3f3fd, 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,
0x0a06060c, 0x6c242448, 0xe45c5cb8, 0x5dc2c29f, 0x6ed3d3bd,
0xefacac43, 0xa66262c4, 0xa8919139, 0xa4959531, 0x37e4e4d3,
0x8b7979f2, 0x32e7e7d5, 0x43c8c88b, 0x5937376e, 0xb76d6dda,
0x8c8d8d01, 0x64d5d5b1, 0xd24e4e9c, 0xe0a9a949, 0xb46c6cd8,
0xfa5656ac, 0x07f4f4f3, 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, 0x05030306, 0x01f6f6f7,
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,
// T1
0x6363c6a5, 0x7c7cf884, 0x7777ee99, 0x7b7bf68d, 0xf2f2ff0d,
0x6b6bd6bd, 0x6f6fdeb1, 0xc5c59154, 0x30306050, 0x01010203,
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, 0x0404080c, 0xc7c79552,
0x23234665, 0xc3c39d5e, 0x18183028, 0x969637a1, 0x05050a0f,
0x9a9a2fb5, 0x07070e09, 0x12122436, 0x80801b9b, 0xe2e2df3d,
0xebebcd26, 0x27274e69, 0xb2b27fcd, 0x7575ea9f, 0x0909121b,
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, 0x02020406, 0x7f7ffe81, 0x5050a0f0, 0x3c3c7844,
0x9f9f25ba, 0xa8a84be3, 0x5151a2f3, 0xa3a35dfe, 0x404080c0,
0x8f8f058a, 0x92923fad, 0x9d9d21bc, 0x38387048, 0xf5f5f104,
0xbcbc63df, 0xb6b677c1, 0xdadaaf75, 0x21214263, 0x10102030,
0xffffe51a, 0xf3f3fd0e, 0xd2d2bf6d, 0xcdcd814c, 0x0c0c1814,
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, 0x0b0b161d, 0xdbdbad76,
0xe0e0db3b, 0x32326456, 0x3a3a744e, 0x0a0a141e, 0x494992db,
0x06060c0a, 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, 0x08081018, 0xbaba6fd5, 0x7878f088, 0x25254a6f,
0x2e2e5c72, 0x1c1c3824, 0xa6a657f1, 0xb4b473c7, 0xc6c69751,
0xe8e8cb23, 0xdddda17c, 0x7474e89c, 0x1f1f3e21, 0x4b4b96dd,
0xbdbd61dc, 0x8b8b0d86, 0x8a8a0f85, 0x7070e090, 0x3e3e7c42,
0xb5b571c4, 0x6666ccaa, 0x484890d8, 0x03030605, 0xf6f6f701,
0x0e0e1c12, 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, 0x0d0d1a17, 0xbfbf65da,
0xe6e6d731, 0x424284c6, 0x6868d0b8, 0x414182c3, 0x999929b0,
0x2d2d5a77, 0x0f0f1e11, 0xb0b07bcb, 0x5454a8fc, 0xbbbb6dd6,
0x16162c3a,
// T2
0x63c6a563, 0x7cf8847c, 0x77ee9977, 0x7bf68d7b, 0xf2ff0df2,
0x6bd6bd6b, 0x6fdeb16f, 0xc59154c5, 0x30605030, 0x01020301,
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, 0x04080c04, 0xc79552c7,
0x23466523, 0xc39d5ec3, 0x18302818, 0x9637a196, 0x050a0f05,
0x9a2fb59a, 0x070e0907, 0x12243612, 0x801b9b80, 0xe2df3de2,
0xebcd26eb, 0x274e6927, 0xb27fcdb2, 0x75ea9f75, 0x09121b09,
0x831d9e83, 0x2c58742c, 0x1a342e1a, 0x1b362d1b, 0x6edcb26e,
0x5ab4ee5a, 0xa05bfba0, 0x52a4f652, 0x3b764d3b, 0xd6b761d6,
0xb37dceb3, 0x29527b29, 0xe3dd3ee3, 0x2f5e712f, 0x84139784,
0x53a6f553, 0xd1b968d1, 0x00000000, 0xedc12ced, 0x20406020,
0xfce31ffc, 0xb179c8b1, 0x5bb6ed5b, 0x6ad4be6a, 0xcb8d46cb,
0xbe67d9be, 0x39724b39, 0x4a94de4a, 0x4c98d44c, 0x58b0e858,
0xcf854acf, 0xd0bb6bd0, 0xefc52aef, 0xaa4fe5aa, 0xfbed16fb,
0x4386c543, 0x4d9ad74d, 0x33665533, 0x85119485, 0x458acf45,
0xf9e910f9, 0x02040602, 0x7ffe817f, 0x50a0f050, 0x3c78443c,
0x9f25ba9f, 0xa84be3a8, 0x51a2f351, 0xa35dfea3, 0x4080c040,
0x8f058a8f, 0x923fad92, 0x9d21bc9d, 0x38704838, 0xf5f104f5,
0xbc63dfbc, 0xb677c1b6, 0xdaaf75da, 0x21426321, 0x10203010,
0xffe51aff, 0xf3fd0ef3, 0xd2bf6dd2, 0xcd814ccd, 0x0c18140c,
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, 0x0b161d0b, 0xdbad76db,
0xe0db3be0, 0x32645632, 0x3a744e3a, 0x0a141e0a, 0x4992db49,
0x060c0a06, 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, 0x08101808, 0xba6fd5ba, 0x78f08878, 0x254a6f25,
0x2e5c722e, 0x1c38241c, 0xa657f1a6, 0xb473c7b4, 0xc69751c6,
0xe8cb23e8, 0xdda17cdd, 0x74e89c74, 0x1f3e211f, 0x4b96dd4b,
0xbd61dcbd, 0x8b0d868b, 0x8a0f858a, 0x70e09070, 0x3e7c423e,
0xb571c4b5, 0x66ccaa66, 0x4890d848, 0x03060503, 0xf6f701f6,
0x0e1c120e, 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, 0x0d1a170d, 0xbf65dabf,
0xe6d731e6, 0x4284c642, 0x68d0b868, 0x4182c341, 0x9929b099,
0x2d5a772d, 0x0f1e110f, 0xb07bcbb0, 0x54a8fc54, 0xbb6dd6bb,
0x162c3a16,
// T3
0xc6a56363, 0xf8847c7c, 0xee997777, 0xf68d7b7b, 0xff0df2f2,
0xd6bd6b6b, 0xdeb16f6f, 0x9154c5c5, 0x60503030, 0x02030101,
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, 0x080c0404, 0x9552c7c7,
0x46652323, 0x9d5ec3c3, 0x30281818, 0x37a19696, 0x0a0f0505,
0x2fb59a9a, 0x0e090707, 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, 0x00000000, 0xc12ceded, 0x40602020,
0xe31ffcfc, 0x79c8b1b1, 0xb6ed5b5b, 0xd4be6a6a, 0x8d46cbcb,
0x67d9bebe, 0x724b3939, 0x94de4a4a, 0x98d44c4c, 0xb0e85858,
0x854acfcf, 0xbb6bd0d0, 0xc52aefef, 0x4fe5aaaa, 0xed16fbfb,
0x86c54343, 0x9ad74d4d, 0x66553333, 0x11948585, 0x8acf4545,
0xe910f9f9, 0x04060202, 0xfe817f7f, 0xa0f05050, 0x78443c3c,
0x25ba9f9f, 0x4be3a8a8, 0xa2f35151, 0x5dfea3a3, 0x80c04040,
0x058a8f8f, 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, 0x0b838888, 0x8cca4646, 0xc729eeee, 0x6bd3b8b8,
0x283c1414, 0xa779dede, 0xbce25e5e, 0x161d0b0b, 0xad76dbdb,
0xdb3be0e0, 0x64563232, 0x744e3a3a, 0x141e0a0a, 0x92db4949,
0x0c0a0606, 0x486c2424, 0xb8e45c5c, 0x9f5dc2c2, 0xbd6ed3d3,
0x43efacac, 0xc4a66262, 0x39a89191, 0x31a49595, 0xd337e4e4,
0xf28b7979, 0xd532e7e7, 0x8b43c8c8, 0x6e593737, 0xdab76d6d,
0x018c8d8d, 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, 0x0d868b8b, 0x0f858a8a, 0xe0907070, 0x7c423e3e,
0x71c4b5b5, 0xccaa6666, 0x90d84848, 0x06050303, 0xf701f6f6,
0x1c120e0e, 0xc2a36161, 0x6a5f3535, 0xaef95757, 0x69d0b9b9,
0x17918686, 0x9958c1c1, 0x3a271d1d, 0x27b99e9e, 0xd938e1e1,
0xeb13f8f8, 0x2bb39898, 0x22331111, 0xd2bb6969, 0xa970d9d9,
0x07898e8e, 0x33a79494, 0x2db69b9b, 0x3c221e1e, 0x15928787,
0xc920e9e9, 0x8749cece, 0xaaff5555, 0x50782828, 0xa57adfdf,
0x038f8c8c, 0x59f8a1a1, 0x09808989, 0x1a170d0d, 0x65dabfbf,
0xd731e6e6, 0x84c64242, 0xd0b86868, 0x82c34141, 0x29b09999,
0x5a772d2d, 0x1e110f0f, 0x7bcbb0b0, 0xa8fc5454, 0x6dd6bbbb,
0x2c3a1616};
private static final int[] Tinv =
{
// Tinv0
0x50a7f451, 0x5365417e, 0xc3a4171a, 0x965e273a, 0xcb6bab3b,
0xf1459d1f, 0xab58faac, 0x9303e34b, 0x55fa3020, 0xf66d76ad,
0x9176cc88, 0x254c02f5, 0xfcd7e54f, 0xd7cb2ac5, 0x80443526,
0x8fa362b5, 0x495ab1de, 0x671bba25, 0x980eea45, 0xe1c0fe5d,
0x02752fc3, 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, 0x0728ebb2, 0x03c2b52f, 0x9a7bc586, 0xa50837d3,
0xf2872830, 0xb2a5bf23, 0xba6a0302, 0x5c8216ed, 0x2b1ccf8a,
0x92b479a7, 0xf0f207f3, 0xa1e2694e, 0xcdf4da65, 0xd5be0506,
0x1f6234d1, 0x8afea6c4, 0x9d532e34, 0xa055f3a2, 0x32e18a05,
0x75ebf6a4, 0x39ec830b, 0xaaef6040, 0x069f715e, 0x51106ebd,
0xf98a213e, 0x3d06dd96, 0xae053edd, 0x46bde64d, 0xb58d5491,
0x055dc471, 0x6fd40604, 0xff155060, 0x24fb9819, 0x97e9bdd6,
0xcc434089, 0x779ed967, 0xbd42e8b0, 0x888b8907, 0x385b19e7,
0xdbeec879, 0x470a7ca1, 0xe90f427c, 0xc91e84f8, 0x00000000,
0x83868009, 0x48ed2b32, 0xac70111e, 0x4e725a6c, 0xfbff0efd,
0x5638850f, 0x1ed5ae3d, 0x27392d36, 0x64d90f0a, 0x21a65c68,
0xd1545b9b, 0x3a2e3624, 0xb1670a0c, 0x0fe75793, 0xd296eeb4,
0x9e919b1b, 0x4fc5c080, 0xa220dc61, 0x694b775a, 0x161a121c,
0x0aba93e2, 0xe52aa0c0, 0x43e0223c, 0x1d171b12, 0x0b0d090e,
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, 0x0d927850,
0x9bcc5f6a, 0x62467e54, 0xc2138df6, 0xe8b8d890, 0x5ef7392e,
0xf5afc382, 0xbe805d9f, 0x7c93d069, 0xa92dd56f, 0xb31225cf,
0x3b99acc8, 0xa77d1810, 0x6e639ce8, 0x7bbb3bdb, 0x097826cd,
0xf418596e, 0x01b79aec, 0xa89a4f83, 0x656e95e6, 0x7ee6ffaa,
0x08cfbc21, 0xe6e815ef, 0xd99be7ba, 0xce366f4a, 0xd4099fea,
0xd67cb029, 0xafb2a431, 0x31233f2a, 0x3094a5c6, 0xc066a235,
0x37bc4e74, 0xa6ca82fc, 0xb0d090e0, 0x15d8a733, 0x4a9804f1,
0xf7daec41, 0x0e50cd7f, 0x2ff69117, 0x8dd64d76, 0x4db0ef43,
0x544daacc, 0xdf0496e4, 0xe3b5d19e, 0x1b886a4c, 0xb81f2cc1,
0x7f516546, 0x04ea5e9d, 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,
0x0c25e2bc, 0x8b493c28, 0x41950dff, 0x7101a839, 0xdeb30c08,
0x9ce4b4d8, 0x90c15664, 0x6184cb7b, 0x70b632d5, 0x745c6c48,
0x4257b8d0,
// Tinv1
0xa7f45150, 0x65417e53, 0xa4171ac3, 0x5e273a96, 0x6bab3bcb,
0x459d1ff1, 0x58faacab, 0x03e34b93, 0xfa302055, 0x6d76adf6,
0x76cc8891, 0x4c02f525, 0xd7e54ffc, 0xcb2ac5d7, 0x44352680,
0xa362b58f, 0x5ab1de49, 0x1bba2567, 0x0eea4598, 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, 0x024b72e2, 0x8f1fe357,
0xab55662a, 0x28ebb207, 0xc2b52f03, 0x7bc5869a, 0x0837d3a5,
0x872830f2, 0xa5bf23b2, 0x6a0302ba, 0x8216ed5c, 0x1ccf8a2b,
0xb479a792, 0xf207f3f0, 0xe2694ea1, 0xf4da65cd, 0xbe0506d5,
0x6234d11f, 0xfea6c48a, 0x532e349d, 0x55f3a2a0, 0xe18a0532,
0xebf6a475, 0xec830b39, 0xef6040aa, 0x9f715e06, 0x106ebd51,
0x8a213ef9, 0x06dd963d, 0x053eddae, 0xbde64d46, 0x8d5491b5,
0x5dc47105, 0xd406046f, 0x155060ff, 0xfb981924, 0xe9bdd697,
0x434089cc, 0x9ed96777, 0x42e8b0bd, 0x8b890788, 0x5b19e738,
0xeec879db, 0x0a7ca147, 0x0f427ce9, 0x1e84f8c9, 0x00000000,
0x86800983, 0xed2b3248, 0x70111eac, 0x725a6c4e, 0xff0efdfb,
0x38850f56, 0xd5ae3d1e, 0x392d3627, 0xd90f0a64, 0xa65c6821,
0x545b9bd1, 0x2e36243a, 0x670a0cb1, 0xe757930f, 0x96eeb4d2,
0x919b1b9e, 0xc5c0804f, 0x20dc61a2, 0x4b775a69, 0x1a121c16,
0xba93e20a, 0x2aa0c0e5, 0xe0223c43, 0x171b121d, 0x0d090e0b,
0xc78bf2ad, 0xa8b62db9, 0xa91e14c8, 0x19f15785, 0x0775af4c,
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, 0x0bd49836, 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, 0x099fead4,
0x7cb029d6, 0xb2a431af, 0x233f2a31, 0x94a5c630, 0x66a235c0,
0xbc4e7437, 0xca82fca6, 0xd090e0b0, 0xd8a73315, 0x9804f14a,
0xdaec41f7, 0x50cd7f0e, 0xf691172f, 0xd64d768d, 0xb0ef434d,
0x4daacc54, 0x0496e4df, 0xb5d19ee3, 0x886a4c1b, 0x1f2cc1b8,
0x5165467f, 0xea5e9d04, 0x358c015d, 0x7487fa73, 0x410bfb2e,
0x1d67b35a, 0xd2db9252, 0x5610e933, 0x47d66d13, 0x61d79a8c,
0x0ca1377a, 0x14f8598e, 0x3c13eb89, 0x27a9ceee, 0xc961b735,
0xe51ce1ed, 0xb1477a3c, 0xdfd29c59, 0x73f2553f, 0xce141879,
0x37c773bf, 0xcdf753ea, 0xaafd5f5b, 0x6f3ddf14, 0xdb447886,
0xf3afca81, 0xc468b93e, 0x3424382c, 0x40a3c25f, 0xc31d1672,
0x25e2bc0c, 0x493c288b, 0x950dff41, 0x01a83971, 0xb30c08de,
0xe4b4d89c, 0xc1566490, 0x84cb7b61, 0xb632d570, 0x5c6c4874,
0x57b8d042,
// Tinv2
0xf45150a7, 0x417e5365, 0x171ac3a4, 0x273a965e, 0xab3bcb6b,
0x9d1ff145, 0xfaacab58, 0xe34b9303, 0x302055fa, 0x76adf66d,
0xcc889176, 0x02f5254c, 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, 0x08f9942b, 0x48705868, 0x458f19fd,
0xde94876c, 0x7b52b7f8, 0x73ab23d3, 0x4b72e202, 0x1fe3578f,
0x55662aab, 0xebb20728, 0xb52f03c2, 0xc5869a7b, 0x37d3a508,
0x2830f287, 0xbf23b2a5, 0x0302ba6a, 0x16ed5c82, 0xcf8a2b1c,
0x79a792b4, 0x07f3f0f2, 0x694ea1e2, 0xda65cdf4, 0x0506d5be,
0x34d11f62, 0xa6c48afe, 0x2e349d53, 0xf3a2a055, 0x8a0532e1,
0xf6a475eb, 0x830b39ec, 0x6040aaef, 0x715e069f, 0x6ebd5110,
0x213ef98a, 0xdd963d06, 0x3eddae05, 0xe64d46bd, 0x5491b58d,
0xc471055d, 0x06046fd4, 0x5060ff15, 0x981924fb, 0xbdd697e9,
0x4089cc43, 0xd967779e, 0xe8b0bd42, 0x8907888b, 0x19e7385b,
0xc879dbee, 0x7ca1470a, 0x427ce90f, 0x84f8c91e, 0x00000000,
0x80098386, 0x2b3248ed, 0x111eac70, 0x5a6c4e72, 0x0efdfbff,
0x850f5638, 0xae3d1ed5, 0x2d362739, 0x0f0a64d9, 0x5c6821a6,
0x5b9bd154, 0x36243a2e, 0x0a0cb167, 0x57930fe7, 0xeeb4d296,
0x9b1b9e91, 0xc0804fc5, 0xdc61a220, 0x775a694b, 0x121c161a,
0x93e20aba, 0xa0c0e52a, 0x223c43e0, 0x1b121d17, 0x090e0b0d,
0x8bf2adc7, 0xb62db9a8, 0x1e14c8a9, 0xf1578519, 0x75af4c07,
0x99eebbdd, 0x7fa3fd60, 0x01f79f26, 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, 0x04f14a98,
0xec41f7da, 0xcd7f0e50, 0x91172ff6, 0x4d768dd6, 0xef434db0,
0xaacc544d, 0x96e4df04, 0xd19ee3b5, 0x6a4c1b88, 0x2cc1b81f,
0x65467f51, 0x5e9d04ea, 0x8c015d35, 0x87fa7374, 0x0bfb2e41,
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, 0x0dff4195, 0xa8397101, 0x0c08deb3,
0xb4d89ce4, 0x566490c1, 0xcb7b6184, 0x32d570b6, 0x6c48745c,
0xb8d04257,
// Tinv3
0x5150a7f4, 0x7e536541, 0x1ac3a417, 0x3a965e27, 0x3bcb6bab,
0x1ff1459d, 0xacab58fa, 0x4b9303e3, 0x2055fa30, 0xadf66d76,
0x889176cc, 0xf5254c02, 0x4ffcd7e5, 0xc5d7cb2a, 0x26804435,
0xb58fa362, 0xde495ab1, 0x25671bba, 0x45980eea, 0x5de1c0fe,
0xc302752f, 0x8112f04c, 0x8da39746, 0x6bc6f9d3, 0x03e75f8f,
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, 0x02ba6a03, 0xed5c8216, 0x8a2b1ccf,
0xa792b479, 0xf3f0f207, 0x4ea1e269, 0x65cdf4da, 0x06d5be05,
0xd11f6234, 0xc48afea6, 0x349d532e, 0xa2a055f3, 0x0532e18a,
0xa475ebf6, 0x0b39ec83, 0x40aaef60, 0x5e069f71, 0xbd51106e,
0x3ef98a21, 0x963d06dd, 0xddae053e, 0x4d46bde6, 0x91b58d54,
0x71055dc4, 0x046fd406, 0x60ff1550, 0x1924fb98, 0xd697e9bd,
0x89cc4340, 0x67779ed9, 0xb0bd42e8, 0x07888b89, 0xe7385b19,
0x79dbeec8, 0xa1470a7c, 0x7ce90f42, 0xf8c91e84, 0x00000000,
0x09838680, 0x3248ed2b, 0x1eac7011, 0x6c4e725a, 0xfdfbff0e,
0x0f563885, 0x3d1ed5ae, 0x3627392d, 0x0a64d90f, 0x6821a65c,
0x9bd1545b, 0x243a2e36, 0x0cb1670a, 0x930fe757, 0xb4d296ee,
0x1b9e919b, 0x804fc5c0, 0x61a220dc, 0x5a694b77, 0x1c161a12,
0xe20aba93, 0xc0e52aa0, 0x3c43e022, 0x121d171b, 0x0e0b0d09,
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,
0x0dec5286, 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, 0x015d358c, 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, 0x08deb30c,
0xd89ce4b4, 0x6490c156, 0x7b6184cb, 0xd570b632, 0x48745c6c,
0xd04257b8};
private static int shift(int r, int shift)
{
return (r >>> shift) | (r << -shift);
}
/* multiply four bytes in GF(2^8) by 'x' {02} in parallel */
private static final int m1 = 0x80808080;
private static final int m2 = 0x7f7f7f7f;
private static final int m3 = 0x0000001b;
private static final int m4 = 0xC0C0C0C0;
private static final int m5 = 0x3f3f3f3f;
private static int FFmulX(int x)
{
return (((x & m2) << 1) ^ (((x & m1) >>> 7) * m3));
}
private static int FFmulX2(int x)
{
int t0 = (x & m5) << 2;
int t1 = (x & m4);
t1 ^= (t1 >>> 1);
return t0 ^ (t1 >>> 2) ^ (t1 >>> 5);
}
/*
The following defines provide alternative definitions of FFmulX that might
give improved performance if a fast 32-bit multiply is not available.
private int FFmulX(int x) { int u = x & m1; u |= (u >> 1); return ((x & m2) << 1) ^ ((u >>> 3) | (u >>> 6)); }
private static final int m4 = 0x1b1b1b1b;
private int FFmulX(int x) { int u = x & m1; return ((x & m2) << 1) ^ ((u - (u >>> 7)) & m4); }
*/
private static int inv_mcol(int x)
{
int t0, t1;
t0 = x;
t1 = t0 ^ shift(t0, 8);
t0 ^= FFmulX(t1);
t1 ^= FFmulX2(t0);
t0 ^= t1 ^ shift(t1, 16);
return t0;
}
private static int subWord(int x)
{
int i0 = x, i1 = x >>> 8, i2 = x >>> 16, i3 = x >>> 24;
i0 = S[i0 & 255] & 255; i1 = S[i1 & 255] & 255; i2 = S[i2 & 255] & 255; i3 = S[i3 & 255] & 255;
return i0 | i1 << 8 | i2 << 16 | i3 << 24;
}
/**
* Calculate the necessary round keys
* The number of calculations depends on key size and block size
* AES specified a fixed block size of 128 bits and key sizes 128/192/256 bits
* This code is written assuming those are the only possible values
*/
private int[][] generateWorkingKey(byte[] key, boolean forEncryption)
{
int keyLen = key.length;
if (keyLen < 16 || keyLen > 32 || (keyLen & 7) != 0)
{
throw new IllegalArgumentException("Key length not 128/192/256 bits.");
}
int KC = keyLen >>> 2;
ROUNDS = KC + 6; // This is not always true for the generalized Rijndael that allows larger block sizes
int[][] W = new int[ROUNDS+1][4]; // 4 words in a block
switch (KC)
{
case 4:
{
int col0 = Pack.littleEndianToInt(key, 0); W[0][0] = col0;
int col1 = Pack.littleEndianToInt(key, 4); W[0][1] = col1;
int col2 = Pack.littleEndianToInt(key, 8); W[0][2] = col2;
int col3 = Pack.littleEndianToInt(key, 12); W[0][3] = col3;
for (int i = 1; i <= 10; ++i)
{
int colx = subWord(shift(col3, 8)) ^ rcon[i - 1];
col0 ^= colx; W[i][0] = col0;
col1 ^= col0; W[i][1] = col1;
col2 ^= col1; W[i][2] = col2;
col3 ^= col2; W[i][3] = col3;
}
break;
}
case 6:
{
int col0 = Pack.littleEndianToInt(key, 0); W[0][0] = col0;
int col1 = Pack.littleEndianToInt(key, 4); W[0][1] = col1;
int col2 = Pack.littleEndianToInt(key, 8); W[0][2] = col2;
int col3 = Pack.littleEndianToInt(key, 12); W[0][3] = col3;
int col4 = Pack.littleEndianToInt(key, 16);
int col5 = Pack.littleEndianToInt(key, 20);
int i = 1, rcon = 1, colx;
for (;;)
{
W[i ][0] = col4;
W[i ][1] = col5;
colx = subWord(shift(col5, 8)) ^ rcon; rcon <<= 1;
col0 ^= colx; W[i ][2] = col0;
col1 ^= col0; W[i ][3] = col1;
col2 ^= col1; W[i + 1][0] = col2;
col3 ^= col2; W[i + 1][1] = col3;
col4 ^= col3; W[i + 1][2] = col4;
col5 ^= col4; W[i + 1][3] = col5;
colx = subWord(shift(col5, 8)) ^ rcon; rcon <<= 1;
col0 ^= colx; W[i + 2][0] = col0;
col1 ^= col0; W[i + 2][1] = col1;
col2 ^= col1; W[i + 2][2] = col2;
col3 ^= col2; W[i + 2][3] = col3;
if ((i += 3) >= 13)
{
break;
}
col4 ^= col3;
col5 ^= col4;
}
break;
}
case 8:
{
int col0 = Pack.littleEndianToInt(key, 0); W[0][0] = col0;
int col1 = Pack.littleEndianToInt(key, 4); W[0][1] = col1;
int col2 = Pack.littleEndianToInt(key, 8); W[0][2] = col2;
int col3 = Pack.littleEndianToInt(key, 12); W[0][3] = col3;
int col4 = Pack.littleEndianToInt(key, 16); W[1][0] = col4;
int col5 = Pack.littleEndianToInt(key, 20); W[1][1] = col5;
int col6 = Pack.littleEndianToInt(key, 24); W[1][2] = col6;
int col7 = Pack.littleEndianToInt(key, 28); W[1][3] = col7;
int i = 2, rcon = 1, colx;
for (;;)
{
colx = subWord(shift(col7, 8)) ^ rcon; rcon <<= 1;
col0 ^= colx; W[i][0] = col0;
col1 ^= col0; W[i][1] = col1;
col2 ^= col1; W[i][2] = col2;
col3 ^= col2; W[i][3] = col3;
++i;
if (i >= 15)
{
break;
}
colx = subWord(col3);
col4 ^= colx; W[i][0] = col4;
col5 ^= col4; W[i][1] = col5;
col6 ^= col5; W[i][2] = col6;
col7 ^= col6; W[i][3] = col7;
++i;
}
break;
}
default:
{
throw new IllegalStateException("Should never get here");
}
}
if (!forEncryption)
{
for (int j = 1; j < ROUNDS; j++)
{
for (int i = 0; i < 4; i++)
{
W[j][i] = inv_mcol(W[j][i]);
}
}
}
return W;
}
private int ROUNDS;
private int[][] WorkingKey = null;
private boolean forEncryption;
private static final int BLOCK_SIZE = 16;
/**
* default constructor - 128 bit block size.
*/
public AESFastEngine()
{
CryptoServicesRegistrar.checkConstraints(new DefaultServiceProperties(getAlgorithmName(), 256));
}
/**
* initialise an AES cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param params the parameters required to set up the cipher.
* @exception IllegalArgumentException if the params argument is
* inappropriate.
*/
public void init(
boolean forEncryption,
CipherParameters params)
{
if (params instanceof KeyParameter)
{
WorkingKey = generateWorkingKey(((KeyParameter)params).getKey(), forEncryption);
this.forEncryption = forEncryption;
CryptoServicesRegistrar.checkConstraints(new DefaultServiceProperties(getAlgorithmName(), bitsOfSecurity(), params, Utils.getPurpose(forEncryption)));
return;
}
throw new IllegalArgumentException("invalid parameter passed to AES init - " + params.getClass().getName());
}
public String getAlgorithmName()
{
return "AES";
}
public int getBlockSize()
{
return BLOCK_SIZE;
}
public int processBlock(byte[] in, int inOff, byte[] out, int outOff)
{
if (WorkingKey == null)
{
throw new IllegalStateException("AES engine not initialised");
}
if (inOff > (in.length - BLOCK_SIZE))
{
throw new DataLengthException("input buffer too short");
}
if (outOff > (out.length - BLOCK_SIZE))
{
throw new OutputLengthException("output buffer too short");
}
if (forEncryption)
{
encryptBlock(in, inOff, out, outOff, WorkingKey);
}
else
{
decryptBlock(in, inOff, out, outOff, WorkingKey);
}
return BLOCK_SIZE;
}
public void reset()
{
}
private void encryptBlock(byte[] in, int inOff, byte[] out, int outOff, int[][] KW)
{
int C0 = Pack.littleEndianToInt(in, inOff + 0);
int C1 = Pack.littleEndianToInt(in, inOff + 4);
int C2 = Pack.littleEndianToInt(in, inOff + 8);
int C3 = Pack.littleEndianToInt(in, inOff + 12);
int t0 = C0 ^ KW[0][0];
int t1 = C1 ^ KW[0][1];
int t2 = C2 ^ KW[0][2];
/*
* Fast engine has precomputed rotr(T0, 8/16/24) tables T1/T2/T3.
*
* Placing all precomputes in one array requires offsets additions for 8/16/24 rotations but
* avoids additional array range checks on 3 more arrays (which on HotSpot are more
* expensive than the offset additions).
*/
int r = 1, r0, r1, r2, r3 = C3 ^ KW[0][3];
int i0, i1, i2, i3;
while (r < ROUNDS - 1)
{
i0 = t0; i1 = t1 >>> 8; i2 = t2 >>> 16; i3 = r3 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r0 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][0];
i0 = t1; i1 = t2 >>> 8; i2 = r3 >>> 16; i3 = t0 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r1 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][1];
i0 = t2; i1 = r3 >>> 8; i2 = t0 >>> 16; i3 = t1 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r2 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][2];
i0 = r3; i1 = t0 >>> 8; i2 = t1 >>> 16; i3 = t2 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r3 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r++][3];
i0 = r0; i1 = r1 >>> 8; i2 = r2 >>> 16; i3 = r3 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
t0 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][0];
i0 = r1; i1 = r2 >>> 8; i2 = r3 >>> 16; i3 = r0 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
t1 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][1];
i0 = r2; i1 = r3 >>> 8; i2 = r0 >>> 16; i3 = r1 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
t2 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][2];
i0 = r3; i1 = r0 >>> 8; i2 = r1 >>> 16; i3 = r2 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r3 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r++][3];
}
i0 = t0; i1 = t1 >>> 8; i2 = t2 >>> 16; i3 = r3 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r0 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][0];
i0 = t1; i1 = t2 >>> 8; i2 = r3 >>> 16; i3 = t0 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r1 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][1];
i0 = t2; i1 = r3 >>> 8; i2 = t0 >>> 16; i3 = t1 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r2 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r][2];
i0 = r3; i1 = t0 >>> 8; i2 = t1 >>> 16; i3 = t2 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r3 = T[i0] ^ T[256 + i1] ^ T[512 + i2] ^ T[768 + i3] ^ KW[r++][3];
// the final round's table is a simple function of S so we don't use a whole other four tables for it
i0 = r0; i1 = r1 >>> 8; i2 = r2 >>> 16; i3 = r3 >>> 24;
i0 = S[i0 & 255] & 255; i1 = S[i1 & 255] & 255; i2 = S[i2 & 255] & 255; i3 = S[i3 & 255] & 255;
C0 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[r][0];
i0 = r1; i1 = r2 >>> 8; i2 = r3 >>> 16; i3 = r0 >>> 24;
i0 = S[i0 & 255] & 255; i1 = S[i1 & 255] & 255; i2 = S[i2 & 255] & 255; i3 = S[i3 & 255] & 255;
C1 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[r][1];
i0 = r2; i1 = r3 >>> 8; i2 = r0 >>> 16; i3 = r1 >>> 24;
i0 = S[i0 & 255] & 255; i1 = S[i1 & 255] & 255; i2 = S[i2 & 255] & 255; i3 = S[i3 & 255] & 255;
C2 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[r][2];
i0 = r3; i1 = r0 >>> 8; i2 = r1 >>> 16; i3 = r2 >>> 24;
i0 = S[i0 & 255] & 255; i1 = S[i1 & 255] & 255; i2 = S[i2 & 255] & 255; i3 = S[i3 & 255] & 255;
C3 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[r][3];
Pack.intToLittleEndian(C0, out, outOff + 0);
Pack.intToLittleEndian(C1, out, outOff + 4);
Pack.intToLittleEndian(C2, out, outOff + 8);
Pack.intToLittleEndian(C3, out, outOff + 12);
}
private void decryptBlock(byte[] in, int inOff, byte[] out, int outOff, int[][] KW)
{
int C0 = Pack.littleEndianToInt(in, inOff + 0);
int C1 = Pack.littleEndianToInt(in, inOff + 4);
int C2 = Pack.littleEndianToInt(in, inOff + 8);
int C3 = Pack.littleEndianToInt(in, inOff + 12);
int t0 = C0 ^ KW[ROUNDS][0];
int t1 = C1 ^ KW[ROUNDS][1];
int t2 = C2 ^ KW[ROUNDS][2];
int r = ROUNDS - 1, r0, r1, r2, r3 = C3 ^ KW[ROUNDS][3];
int i0, i1, i2, i3;
while (r > 1)
{
i0 = t0; i1 = r3 >>> 8; i2 = t2 >>> 16; i3 = t1 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r0 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r][0];
i0 = t1; i1 = t0 >>> 8; i2 = r3 >>> 16; i3 = t2 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r1 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r][1];
i0 = t2; i1 = t1 >>> 8; i2 = t0 >>> 16; i3 = r3 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r2 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r][2];
i0 = r3; i1 = t2 >>> 8; i2 = t1 >>> 16; i3 = t0 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r3 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r--][3];
i0 = r0; i1 = r3 >>> 8; i2 = r2 >>> 16; i3 = r1 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
t0 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r][0];
i0 = r1; i1 = r0 >>> 8; i2 = r3 >>> 16; i3 = r2 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
t1 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r][1];
i0 = r2; i1 = r1 >>> 8; i2 = r0 >>> 16; i3 = r3 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
t2 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r][2];
i0 = r3; i1 = r2 >>> 8; i2 = r1 >>> 16; i3 = r0 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r3 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[r--][3];
}
i0 = t0; i1 = r3 >>> 8; i2 = t2 >>> 16; i3 = t1 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r0 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[1][0];
i0 = t1; i1 = t0 >>> 8; i2 = r3 >>> 16; i3 = t2 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r1 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[1][1];
i0 = t2; i1 = t1 >>> 8; i2 = t0 >>> 16; i3 = r3 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r2 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[1][2];
i0 = r3; i1 = t2 >>> 8; i2 = t1 >>> 16; i3 = t0 >>> 24;
i0 &= 255; i1 &= 255; i2 &= 255; i3 &= 255;
r3 = Tinv[i0] ^ Tinv[256 + i1] ^ Tinv[512 + i2] ^ Tinv[768 + i3] ^ KW[1][3];
// the final round's table is a simple function of Si so we don't use a whole other four tables for it
i0 = r0; i1 = r3 >>> 8; i2 = r2 >>> 16; i3 = r1 >>> 24;
i0 = Si[i0 & 255] & 255; i1 = Si[i1 & 255] & 255; i2 = Si[i2 & 255] & 255; i3 = Si[i3 & 255] & 255;
C0 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[0][0];
i0 = r1; i1 = r0 >>> 8; i2 = r3 >>> 16; i3 = r2 >>> 24;
i0 = Si[i0 & 255] & 255; i1 = Si[i1 & 255] & 255; i2 = Si[i2 & 255] & 255; i3 = Si[i3 & 255] & 255;
C1 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[0][1];
i0 = r2; i1 = r1 >>> 8; i2 = r0 >>> 16; i3 = r3 >>> 24;
i0 = Si[i0 & 255] & 255; i1 = Si[i1 & 255] & 255; i2 = Si[i2 & 255] & 255; i3 = Si[i3 & 255] & 255;
C2 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[0][2];
i0 = r3; i1 = r2 >>> 8; i2 = r1 >>> 16; i3 = r0 >>> 24;
i0 = Si[i0 & 255] & 255; i1 = Si[i1 & 255] & 255; i2 = Si[i2 & 255] & 255; i3 = Si[i3 & 255] & 255;
C3 = i0 ^ i1 << 8 ^ i2 << 16 ^ i3 << 24 ^ KW[0][3];
Pack.intToLittleEndian(C0, out, outOff + 0);
Pack.intToLittleEndian(C1, out, outOff + 4);
Pack.intToLittleEndian(C2, out, outOff + 8);
Pack.intToLittleEndian(C3, out, outOff + 12);
}
// Service Definitions
private int bitsOfSecurity()
{
if (WorkingKey == null)
{
return 256;
}
return (WorkingKey.length - 7) << 5;
}
}