--- /dev/null
+<?php
+
+/**
+ * An implementation of the Rijndael cipher, using the phpseclib implementation
+ *
+ * This was forked from phpseclib and modified to use CryptLib conventions
+ *
+ * PHP version 5.3
+ *
+ * @category PHPCryptLib
+ * @package Cipher
+ * @subpackage Block
+ * @author Anthony Ferrara <ircmaxell@ircmaxell.com>
+ * @author Jim Wigginton <terrafrost@php.net>
+ * @copyright 2011 The Authors
+ * @license http://www.opensource.org/licenses/mit-license.html MIT License
+ * @version Build @@version@@
+ */
+
+namespace CryptLib\Cipher\Block\Cipher;
+
+/**
+ * An implementation of the Rijndael cipher, using the phpseclib implementation
+ *
+ * @category PHPCryptLib
+ * @package Cipher
+ * @subpackage Block
+ * @author Anthony Ferrara <ircmaxell@ircmaxell.com>
+ */
+class Rijndael extends \CryptLib\Cipher\Block\AbstractCipher {
+
+ /**
+ * @var int The number of bytes in each block
+ */
+ protected $blockSize = 16;
+
+ /**
+ * @var array The decryption key schedule
+ */
+ protected $decryptionSchedule = array();
+
+ /**
+ * @var array The encryption key schedule
+ */
+ protected $encryptionSchedule = array();
+
+ /**
+ * @var int The number of bytes in the key
+ */
+ protected $keySize = 16;
+
+ /**
+ * @var array The shift offsets used by the cipher
+ */
+ protected $shiftOffsets = array(0, 1, 2, 3);
+
+ /**
+ * @var array The rcon static array
+ */
+ protected static $rcon = array(0,
+ 0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000,
+ 0x20000000, 0x40000000, 0x80000000, 0x1B000000, 0x36000000,
+ 0x6C000000, 0xD8000000, 0xAB000000, 0x4D000000, 0x9A000000,
+ 0x2F000000, 0x5E000000, 0xBC000000, 0x63000000, 0xC6000000,
+ 0x97000000, 0x35000000, 0x6A000000, 0xD4000000, 0xB3000000,
+ 0x7D000000, 0xFA000000, 0xEF000000, 0xC5000000, 0x91000000
+ );
+
+ /**
+ * @var array The initial t array used by the cipher
+ */
+ protected static $tValues = array(
+ 0 => array(),
+ 1 => array(),
+ 2 => array(),
+ 3 => array(
+ 0x6363A5C6, 0x7C7C84F8, 0x777799EE, 0x7B7B8DF6, 0xF2F20DFF, 0x6B6BBDD6,
+ 0x6F6FB1DE, 0xC5C55491, 0x30305060, 0x01010302, 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,
+ 0x04040C08, 0xC7C75295, 0x23236546, 0xC3C35E9D, 0x18182830, 0x9696A137,
+ 0x05050F0A, 0x9A9AB52F, 0x0707090E, 0x12123624, 0x80809B1B, 0xE2E23DDF,
+ 0xEBEB26CD, 0x2727694E, 0xB2B2CD7F, 0x75759FEA, 0x09091B12, 0x83839E1D,
+ 0x2C2C7458, 0x1A1A2E34, 0x1B1B2D36, 0x6E6EB2DC, 0x5A5AEEB4, 0xA0A0FB5B,
+ 0x5252F6A4, 0x3B3B4D76, 0xD6D661B7, 0xB3B3CE7D, 0x29297B52, 0xE3E33EDD,
+ 0x2F2F715E, 0x84849713, 0x5353F5A6, 0xD1D168B9, 0x00000000, 0xEDED2CC1,
+ 0x20206040, 0xFCFC1FE3, 0xB1B1C879, 0x5B5BEDB6, 0x6A6ABED4, 0xCBCB468D,
+ 0xBEBED967, 0x39394B72, 0x4A4ADE94, 0x4C4CD498, 0x5858E8B0, 0xCFCF4A85,
+ 0xD0D06BBB, 0xEFEF2AC5, 0xAAAAE54F, 0xFBFB16ED, 0x4343C586, 0x4D4DD79A,
+ 0x33335566, 0x85859411, 0x4545CF8A, 0xF9F910E9, 0x02020604, 0x7F7F81FE,
+ 0x5050F0A0, 0x3C3C4478, 0x9F9FBA25, 0xA8A8E34B, 0x5151F3A2, 0xA3A3FE5D,
+ 0x4040C080, 0x8F8F8A05, 0x9292AD3F, 0x9D9DBC21, 0x38384870, 0xF5F504F1,
+ 0xBCBCDF63, 0xB6B6C177, 0xDADA75AF, 0x21216342, 0x10103020, 0xFFFF1AE5,
+ 0xF3F30EFD, 0xD2D26DBF, 0xCDCD4C81, 0x0C0C1418, 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, 0x0B0B1D16, 0xDBDB76AD, 0xE0E03BDB, 0x32325664,
+ 0x3A3A4E74, 0x0A0A1E14, 0x4949DB92, 0x06060A0C, 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, 0x08081810,
+ 0xBABAD56F, 0x787888F0, 0x25256F4A, 0x2E2E725C, 0x1C1C2438, 0xA6A6F157,
+ 0xB4B4C773, 0xC6C65197, 0xE8E823CB, 0xDDDD7CA1, 0x74749CE8, 0x1F1F213E,
+ 0x4B4BDD96, 0xBDBDDC61, 0x8B8B860D, 0x8A8A850F, 0x707090E0, 0x3E3E427C,
+ 0xB5B5C471, 0x6666AACC, 0x4848D890, 0x03030506, 0xF6F601F7, 0x0E0E121C,
+ 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, 0x0D0D171A, 0xBFBFDA65, 0xE6E631D7,
+ 0x4242C684, 0x6868B8D0, 0x4141C382, 0x9999B029, 0x2D2D775A, 0x0F0F111E,
+ 0xB0B0CB7B, 0x5454FCA8, 0xBBBBD66D, 0x16163A2C
+ )
+ );
+
+ /**
+ * @var array The initial Decryption t value array
+ */
+ protected static $dtValues = array(
+ 0 => array(),
+ 1 => array(),
+ 2 => array(),
+ 3 => array(
+ 0xF4A75051, 0x4165537E, 0x17A4C31A, 0x275E963A, 0xAB6BCB3B, 0x9D45F11F,
+ 0xFA58ABAC, 0xE303934B, 0x30FA5520, 0x766DF6AD, 0xCC769188, 0x024C25F5,
+ 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, 0x082B94F9,
+ 0x48685870, 0x45FD198F, 0xDE6C8794, 0x7BF8B752, 0x73D323AB, 0x4B02E272,
+ 0x1F8F57E3, 0x55AB2A66, 0xEB2807B2, 0xB5C2032F, 0xC57B9A86, 0x3708A5D3,
+ 0x2887F230, 0xBFA5B223, 0x036ABA02, 0x16825CED, 0xCF1C2B8A, 0x79B492A7,
+ 0x07F2F0F3, 0x69E2A14E, 0xDAF4CD65, 0x05BED506, 0x34621FD1, 0xA6FE8AC4,
+ 0x2E539D34, 0xF355A0A2, 0x8AE13205, 0xF6EB75A4, 0x83EC390B, 0x60EFAA40,
+ 0x719F065E, 0x6E1051BD, 0x218AF93E, 0xDD063D96, 0x3E05AEDD, 0xE6BD464D,
+ 0x548DB591, 0xC45D0571, 0x06D46F04, 0x5015FF60, 0x98FB2419, 0xBDE997D6,
+ 0x4043CC89, 0xD99E7767, 0xE842BDB0, 0x898B8807, 0x195B38E7, 0xC8EEDB79,
+ 0x7C0A47A1, 0x420FE97C, 0x841EC9F8, 0x00000000, 0x80868309, 0x2BED4832,
+ 0x1170AC1E, 0x5A724E6C, 0x0EFFFBFD, 0x8538560F, 0xAED51E3D, 0x2D392736,
+ 0x0FD9640A, 0x5CA62168, 0x5B54D19B, 0x362E3A24, 0x0A67B10C, 0x57E70F93,
+ 0xEE96D2B4, 0x9B919E1B, 0xC0C54F80, 0xDC20A261, 0x774B695A, 0x121A161C,
+ 0x93BA0AE2, 0xA02AE5C0, 0x22E0433C, 0x1B171D12, 0x090D0B0E, 0x8BC7ADF2,
+ 0xB6A8B92D, 0x1EA9C814, 0xF1198557, 0x75074CAF, 0x99DDBBEE, 0x7F60FDA3,
+ 0x01269FF7, 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,
+ 0x04984AF1, 0xECDAF741, 0xCD500E7F, 0x91F62F17, 0x4DD68D76, 0xEFB04D43,
+ 0xAA4D54CC, 0x9604DFE4, 0xD1B5E39E, 0x6A881B4C, 0x2C1FB8C1, 0x65517F46,
+ 0x5EEA049D, 0x8C355D01, 0x877473FA, 0x0B412EFB, 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, 0x0D9541FF, 0xA8017139, 0x0CB3DE08, 0xB4E49CD8, 0x56C19064,
+ 0xCB84617B, 0x32B670D5, 0x6C5C7448, 0xB85742D0
+ )
+ );
+
+ /**
+ * @var array The sboxes used for key expansion
+ */
+ protected static $sboxes = array(
+ 0 => array(
+ 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
+ ),
+ 1 => array(),
+ 2 => array(),
+ 3 => array(),
+ );
+
+ /**
+ * @var array The inverse sboxes used for decryption
+ */
+ protected static $invSBoxes = array(
+ 0 => array(
+ 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
+ ),
+ 1 => array(),
+ 2 => array(),
+ 3 => array(),
+ );
+
+ /**
+ * Get a list of supported ciphers for this class implementation
+ *
+ * @return array A list of supported ciphers
+ */
+ public static function getSupportedCiphers() {
+ return array(
+ 'rijndael-128',
+ 'rijndael-160',
+ 'rijndael-192',
+ 'rijndael-224',
+ 'rijndael-256',
+ );
+ }
+
+ /**
+ * Initialize the tValues,dtValues,sboxes and inverseSBoxes arrays
+ * by calculating. Since this only needs to be done once, it's
+ * a static method
+ *
+ * @return void
+ */
+ protected static function init() {
+ if (empty(static::$tValues[0])) {
+ $t_3 = static::$tValues[3];
+ $dt3 = static::$dtValues[3];
+ for ($i = 0; $i < 256; $i++) {
+ static::$tValues[2][$i << 8] = (($t_3[$i] << 8) & 0xFFFFFF00)
+ | (($t_3[$i] >> 24) & 0x000000FF);
+ static::$tValues[1][$i << 16] = (($t_3[$i] << 16) & 0xFFFF0000)
+ | (($t_3[$i] >> 16) & 0x0000FFFF);
+ static::$tValues[0][$i << 24] = (($t_3[$i] << 24) & 0xFF000000)
+ | (($t_3[$i] >> 8) & 0x00FFFFFF);
+
+ static::$dtValues[2][$i << 8] = (($dt3[$i] << 8) & 0xFFFFFF00)
+ | (($dt3[$i] >> 24) & 0x000000FF);
+ static::$dtValues[1][$i << 16] = (($dt3[$i] << 16) & 0xFFFF0000)
+ | (($dt3[$i] >> 16) & 0x0000FFFF);
+ static::$dtValues[0][$i << 24] = (($dt3[$i] << 24) & 0xFF000000)
+ | (($dt3[$i] >> 8) & 0x00FFFFFF);
+
+ static::$sboxes[1][$i << 8] = static::$sboxes[0][$i] << 8;
+ static::$sboxes[2][$i << 16] = static::$sboxes[0][$i] << 16;
+ static::$sboxes[3][$i << 24] = static::$sboxes[0][$i] << 24;
+ static::$invSBoxes[1][$i << 8] = static::$invSBoxes[0][$i] << 8;
+ static::$invSBoxes[2][$i << 16] = static::$invSBoxes[0][$i] << 16;
+ static::$invSBoxes[3][$i << 24] = static::$invSBoxes[0][$i] << 24;
+ }
+ }
+ }
+
+ /**
+ * Construct the instance for the supplied cipher name
+ *
+ * @param string $cipher The cipher to implement
+ *
+ * @return void
+ * @throws InvalidArgumentException if the cipher is not supported
+ */
+ public function __construct($cipher) {
+ parent::__construct($cipher);
+ list (, $bits) = explode('-', $cipher, 2);
+ $this->setBlockSize($bits);
+ $this->setKeySize($bits);
+ static::init();
+ }
+
+ /**
+ * Set the key to use for the cipher
+ *
+ * @param string $key The key to use
+ *
+ * @throws InvalidArgumentException If the key is not the correct size
+ * @return void
+ */
+ public function setKey($key) {
+ $length = strlen($key);
+ if ($length != $this->keySize) {
+ $this->setKeySize($length << 3);
+ if ($length != $this->keySize) {
+ throw new \InvalidArgumentException(
+ 'The key is not of a supported length'
+ );
+ }
+ }
+ $this->key = $key;
+ $this->initialized = $this->initialize();
+ }
+
+ /**
+ * Decrypt a block of data using the supplied string key
+ *
+ * Note that the supplied data should be the same size as the block size of
+ * the cipher being used.
+ *
+ * @param string $data The data to decrypt
+ *
+ * @return string The result decrypted data
+ */
+ protected function decryptBlockData($data) {
+ $schedule = $this->decryptionSchedule;
+ return $this->decryptBlockPart($data, $schedule);
+ }
+
+ /**
+ * Encrypt a block of data using the supplied string key
+ *
+ * Note that the supplied data should be the same size as the block size of
+ * the cipher being used.
+ *
+ * @param string $data The data to encrypt
+ *
+ * @return string The result encrypted data
+ */
+ protected function encryptBlockData($data) {
+ $schedule = $this->encryptionSchedule;
+ return $this->encryptBlockPart($data, $schedule);
+ }
+
+ /**
+ * Initialize the cipher by preparing the key
+ *
+ * @return boolean The status of the initialization
+ */
+ protected function initialize() {
+ $this->encryptionSchedule = $this->getEncryptionSchedule($this->key);
+ $this->decryptionSchedule = $this->getDecryptionSchedule($this->key);
+ return true;
+ }
+
+ /**
+ * Encrypt a piece of the block (a single block sized chunk)
+ *
+ * @param string $part The block part to encrypt
+ * @param array $schedule The key schedule to use for encryption
+ *
+ * @return string The encrypted string
+ */
+ protected function encryptBlockPart($part, array $schedule) {
+ $words = unpack('N*words', $part);
+ $state = array();
+ $ictr = 0;
+ foreach ($words as $word) {
+ $state[] = $word ^ $schedule[0][$ictr++];
+ }
+ $nBlocks = $this->blockSize >> 2;
+ $nKeys = $this->keySize >> 2;
+ $nRounds = max($nBlocks, $nKeys) + 6;
+ $temp = array();
+ for ($round = 1; $round < $nRounds; $round++) {
+ $ictr = $this->shiftOffsets[0];
+ $jctr = $this->shiftOffsets[1];
+ $kctr = $this->shiftOffsets[2];
+ $lctr = $this->shiftOffsets[3];
+ while ($ictr < $nBlocks) {
+ $temp[$ictr] = static::$tValues[0][$state[$ictr] & 0xFF000000]
+ ^ static::$tValues[1][$state[$jctr] & 0x00FF0000]
+ ^ static::$tValues[2][$state[$kctr] & 0x0000FF00]
+ ^ static::$tValues[3][$state[$lctr] & 0x000000FF]
+ ^ $schedule[$round][$ictr];
+ $ictr++;
+ $jctr = ($jctr + 1) % $nBlocks;
+ $kctr = ($kctr + 1) % $nBlocks;
+ $lctr = ($lctr + 1) % $nBlocks;
+ }
+ for ($i = 0; $i < $nBlocks; $i++) {
+ $state[$i] = $temp[$i];
+ }
+ }
+ for ($i = 0; $i < $nBlocks; $i++) {
+ $state[$i] = $this->subWord($state[$i]);
+ }
+ $ictr = $this->shiftOffsets[0];
+ $jctr = $this->shiftOffsets[1];
+ $kctr = $this->shiftOffsets[2];
+ $lctr = $this->shiftOffsets[3];
+ while ($ictr < $nBlocks) {
+ $temp[$ictr] = ($state[$ictr] & 0xFF000000)
+ ^ ($state[$jctr] & 0x00FF0000)
+ ^ ($state[$kctr] & 0x0000FF00)
+ ^ ($state[$lctr] & 0x000000FF)
+ ^ $schedule[$nRounds][$ictr];
+ $ictr++;
+ $jctr = ($jctr + 1) % $nBlocks;
+ $kctr = ($kctr + 1) % $nBlocks;
+ $lctr = ($lctr + 1) % $nBlocks;
+ }
+ $state = $temp;
+ array_unshift($state, 'N*');
+ return call_user_func_array('pack', $state);
+ }
+
+ /**
+ * Decrypt a piece of the block (a single block sized chunk)
+ *
+ * @param string $part The block part to decrypt
+ * @param array $schedule The key schedule to use for decryption
+ *
+ * @return string The decrypted string
+ */
+ protected function decryptBlockPart($part, $schedule) {
+ $state = array();
+ $words = unpack('N*word', $part);
+ $inc = 0;
+ $nBlocks = $this->blockSize >> 2;
+ $nKeys = $this->keySize >> 2;
+ $nRounds = max($nBlocks, $nKeys) + 6;
+ foreach ($words as $word) {
+ $state[] = $word ^ $schedule[$nRounds][$inc++];
+ }
+ $temp = array();
+ for ($round = $nRounds - 1; $round > 0; $round--) {
+ $ictr = $this->shiftOffsets[0];
+ $jctr = $nBlocks - $this->shiftOffsets[1];
+ $kctr = $nBlocks - $this->shiftOffsets[2];
+ $lctr = $nBlocks - $this->shiftOffsets[3];
+
+ while ($ictr < $nBlocks) {
+ $temp[$ictr] = static::$dtValues[0][$state[$ictr] & 0xFF000000]
+ ^ static::$dtValues[1][$state[$jctr] & 0x00FF0000]
+ ^ static::$dtValues[2][$state[$kctr] & 0x0000FF00]
+ ^ static::$dtValues[3][$state[$lctr] & 0x000000FF]
+ ^ $schedule[$round][$ictr];
+ $ictr++;
+ $jctr = ($jctr + 1) % $nBlocks;
+ $kctr = ($kctr + 1) % $nBlocks;
+ $lctr = ($lctr + 1) % $nBlocks;
+ }
+ for ($i = 0; $i < $nBlocks; $i++) {
+ $state[$i] = $temp[$i];
+ }
+ }
+ $ictr = $this->shiftOffsets[0];
+ $jctr = $nBlocks - $this->shiftOffsets[1];
+ $kctr = $nBlocks - $this->shiftOffsets[2];
+ $lctr = $nBlocks - $this->shiftOffsets[3];
+ $temp = array();
+ while ($ictr < $nBlocks) {
+ $temp[$ictr] = $schedule[0][$ictr]
+ ^ $this->invSubWord(
+ ($state[$ictr] & 0xFF000000)
+ | ($state[$jctr] & 0x00FF0000)
+ | ($state[$kctr] & 0x0000FF00)
+ | ($state[$lctr] & 0x000000FF)
+ );
+ $ictr++;
+ $jctr = ($jctr + 1) % $nBlocks;
+ $kctr = ($kctr + 1) % $nBlocks;
+ $lctr = ($lctr + 1) % $nBlocks;
+ }
+ $state = $temp;
+ array_unshift($state, 'N*');
+ return call_user_func_array('pack', $state);
+ }
+
+ /**
+ * Set the block size to use for the cipher
+ *
+ * @param int $num The number of bits in the block size
+ *
+ * @return void
+ */
+ protected function setBlockSize($num) {
+ $num >>= 5;
+ $num = max(min($num, 8), 4);
+ $this->blockSize = $num << 2;
+ }
+
+ /**
+ * Set the key size to use for the cipher
+ *
+ * @param int $num The number of bits in the key size
+ *
+ * @return void
+ */
+ protected function setKeySize($num) {
+ $num >>= 5;
+ $num = max(min($num, 8), 4);
+ $this->keySize = $num << 2;
+ }
+
+ /**
+ * Setup the cipher by determining the shift offsets, the key size and
+ * precomputing part of the key schedule
+ *
+ * @param string $key The key to setup the cipher for
+ *
+ * @return array The precomputed schedule part
+ */
+ protected function setup($key) {
+ $this->setShiftOffsets();
+ $nBlocks = $this->blockSize >> 2;
+ $nKeys = $this->keySize >> 2;
+ $nRounds = max($nBlocks, $nKeys) + 6;
+ $words = array_values(unpack('N*words', $key));
+ $length = $nBlocks * ($nRounds + 1);
+ for ($i = $nKeys; $i < $length; $i++) {
+ $temp = $words[$i - 1];
+ if ($i % $nKeys == 0) {
+ $temp = (($temp << 8) & 0xFFFFFF00) | (($temp >> 24) & 0x000000FF);
+ $temp = $this->subWord($temp) ^ static::$rcon[$i / $nKeys];
+ } elseif ($nKeys > 6 && ($i % $nKeys == 4)) {
+ $temp = $this->subWord($temp);
+ }
+ $words[$i] = $words[$i - $nKeys] ^ $temp;
+ }
+ return $words;
+ }
+
+ /**
+ * Convert the kye into an encryption schedule
+ *
+ * @param string $key The key to use
+ *
+ * @return array The generated key schedule
+ */
+ protected function getEncryptionSchedule($key) {
+ $words = $this->setup($key);
+ $nBlocks = $this->blockSize >> 2;
+ $length = $nBlocks * (max($nBlocks, $this->keySize >> 2) + 7);
+ $schedule = array();
+ for ($i = $row = $col = 0; $i < $length; $i++, $col++) {
+ if ($col == $nBlocks) {
+ $col = 0;
+ $row++;
+ }
+ if (!isset($schedule[$row])) {
+ $schedule[$row] = array();
+ }
+ $schedule[$row][$col] = $words[$i];
+ }
+ return $schedule;
+ }
+
+ /**
+ * Convert the kye into an decryption schedule
+ *
+ * @param string $key The key to use
+ *
+ * @return array The generated key schedule
+ */
+ protected function getDecryptionSchedule($key) {
+ $words = $this->getEncryptionSchedule($key);
+ $schedule = array();
+ $length = count($words) - 1;
+ $schedule[] = $words[0];
+ $nBlocks = $this->blockSize >> 2;
+ for ($i = 1; $i < $length; $i++) {
+ $jctr = 0;
+ $temp = array();
+ while ($jctr < $nBlocks) {
+ $dwblock = $this->subWord($words[$i][$jctr]);
+ $temp[$jctr] = static::$dtValues[0][$dwblock & 0xFF000000]
+ ^ static::$dtValues[1][$dwblock & 0x00FF0000]
+ ^ static::$dtValues[2][$dwblock & 0x0000FF00]
+ ^ static::$dtValues[3][$dwblock & 0x000000FF];
+ $jctr++;
+ }
+ $schedule[$i] = $temp;
+ }
+ $schedule[] = $words[$length];
+ return $schedule;
+ }
+
+ /**
+ * Compute the word by merging it with the sboxes
+ *
+ * @param string $word
+ *
+ * @return string The computed word
+ */
+ protected function subWord($word) {
+ return static::$sboxes[0][$word & 0x000000FF]
+ | static::$sboxes[1][$word & 0x0000FF00]
+ | static::$sboxes[2][$word & 0x00FF0000]
+ | static::$sboxes[3][$word & 0xFF000000];
+ }
+
+ /**
+ * Compute the word by merging it with the inverse sboxes
+ *
+ * @param string $word
+ *
+ * @return string The computed word
+ */
+ protected function invSubWord($word) {
+ return static::$invSBoxes[0][$word & 0x000000FF]
+ | static::$invSBoxes[1][$word & 0x0000FF00]
+ | static::$invSBoxes[2][$word & 0x00FF0000]
+ | static::$invSBoxes[3][$word & 0xFF000000];
+ }
+
+ /**
+ * Setup the shift offsets to use for the cipher
+ *
+ * @return void
+ */
+ protected function setShiftOffsets() {
+ switch ($this->blockSize >> 2) {
+ case 4:
+ case 5:
+ case 6:
+ $this->shiftOffsets = array(0, 1, 2, 3);
+ break;
+ case 7:
+ $this->shiftOffsets = array(0, 1, 2, 4);
+ break;
+ case 8:
+ $this->shiftOffsets = array(0, 1, 3, 4);
+ }
+ }
+
+}
projects / GitHub / Stricted / speedport-hybrid-php-api.git / blobdiff