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AES/Rijndael Performance Update [3]
Performance Update for AES/Rijndael
This commit is contained in:
Hans-Jürgen Petrich
parent
96dae90489
commit
afa5465e63
@ -166,58 +166,6 @@ class Crypt_AES extends Crypt_Rijndael {
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*/
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var $ecb;
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/**
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* The SubByte S-Box
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*
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* @see Crypt_AES::_encryptBlock()
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* @var Array
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* @access intern
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*/
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var $sbox = array(
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0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
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0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
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0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
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0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
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0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
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0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
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0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
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0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
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0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
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0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
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0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
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0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
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0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
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0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
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0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
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0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16
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);
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/**
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* The inverse SubByte S-Box
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*
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* @see Crypt_AES::_decryptBlock()
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* @var Array
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* @access intern
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*/
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var $isbox = array(
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0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
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0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,
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0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,
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0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,
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0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,
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0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,
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0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,
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0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,
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0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,
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0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,
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0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,
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0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,
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0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,
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0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,
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0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,
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0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D
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);
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/**
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* Default Constructor.
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*
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@ -292,36 +240,7 @@ class Crypt_AES extends Crypt_Rijndael {
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if (CRYPT_AES_MODE == CRYPT_AES_MODE_INTERNAL) {
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parent::Crypt_Rijndael($this->mode);
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}
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}
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/**
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* Extended Crypt_Rijndael::_setup()
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*
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* Optimizing the key schedule arrays ($w, $dw) for _encryptBlock() and _decryptBlock() after Crypt_Rijndael::_setup()
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*
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* @see Crypt_Rijndael::_setup()
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* @access private
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*/
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function _setup()
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{
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if (!$this->changed) {
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return;
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}
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$this->w = $this->dw = array();
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parent::_setup();
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$this->dw = array_reverse($this->dw);
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$w = array_pop($this->w);
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$dw = array_pop($this->dw);
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foreach ($this->w as $r => $wr) {
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foreach ($wr as $c => $wc) {
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$w[] = $wc;
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$dw[] = $this->dw[$r][$c];
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}
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}
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$this->w = $w;
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$this->dw = $dw;
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}
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/**
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@ -581,330 +500,6 @@ class Crypt_AES extends Crypt_Rijndael {
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$this->changed = false;
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}
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/**
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* Encrypts a block
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*
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* Optimized over Crypt_Rijndael's implementation by means of loop unrolling.
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*
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* @see Crypt_Rijndael::_encryptBlock()
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* @access private
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* @param String $in
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* @return String
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*/
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function _encryptBlock($in)
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{
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$state = unpack('N*', $in);
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$sbox = $this->sbox;
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$w = $this->w;
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$t0 = $this->t0;
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$t1 = $this->t1;
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$t2 = $this->t2;
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$t3 = $this->t3;
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// addRoundKey
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$s0 = $state[1] ^ $w[4];
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$s1 = $state[2] ^ $w[5];
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$s2 = $state[3] ^ $w[6];
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$s3 = $state[4] ^ $w[7];
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// shiftRows + subWord + mixColumns + addRoundKey
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$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[8];
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$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[9];
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$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[10];
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$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[11];
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$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[12];
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$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[13];
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$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[14];
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$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[15];
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$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[16];
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$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[17];
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$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[18];
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$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[19];
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$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[20];
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$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[21];
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$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[22];
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$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[23];
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$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[24];
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$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[25];
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$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[26];
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$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[27];
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$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[28];
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$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[29];
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$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[30];
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$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[31];
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$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[32];
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$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[33];
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$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[34];
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$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[35];
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$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[36];
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$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[37];
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$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[38];
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$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[39];
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$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[40];
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$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[41];
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$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[42];
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$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[43];
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switch ($this->Nr) {
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case 10:
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break;
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case 14:
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$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[44];
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$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[45];
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$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[46];
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$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[47];
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$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[48];
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$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[49];
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$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[50];
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$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[51];
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$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[52];
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$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[53];
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$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[54];
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$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[55];
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$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[56];
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$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[57];
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$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[58];
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$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[59];
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break;
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case 12:
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$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[44];
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$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[45];
|
||||
$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[46];
|
||||
$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[47];
|
||||
|
||||
$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[48];
|
||||
$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[49];
|
||||
$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[50];
|
||||
$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[51];
|
||||
break;
|
||||
|
||||
case 13:
|
||||
$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[44];
|
||||
$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[45];
|
||||
$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[46];
|
||||
$s3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[47];
|
||||
|
||||
$e0 = $t0[($s0 >> 24) & 0xff] ^ $t1[($s1 >> 16) & 0xff] ^ $t2[($s2 >> 8) & 0xff] ^ $t3[$s3 & 0xff] ^ $w[48];
|
||||
$e1 = $t0[($s1 >> 24) & 0xff] ^ $t1[($s2 >> 16) & 0xff] ^ $t2[($s3 >> 8) & 0xff] ^ $t3[$s0 & 0xff] ^ $w[49];
|
||||
$e2 = $t0[($s2 >> 24) & 0xff] ^ $t1[($s3 >> 16) & 0xff] ^ $t2[($s0 >> 8) & 0xff] ^ $t3[$s1 & 0xff] ^ $w[50];
|
||||
$e3 = $t0[($s3 >> 24) & 0xff] ^ $t1[($s0 >> 16) & 0xff] ^ $t2[($s1 >> 8) & 0xff] ^ $t3[$s2 & 0xff] ^ $w[51];
|
||||
|
||||
$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[52];
|
||||
$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[53];
|
||||
$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[54];
|
||||
$e3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[55];
|
||||
// Note: Here we skip $s3 but using $e3
|
||||
|
||||
$e0 = $s0;
|
||||
$e1 = $s1;
|
||||
$e2 = $s2;
|
||||
// $e3 = $s3;
|
||||
break;
|
||||
|
||||
default: // 11
|
||||
$s0 = $t0[($e0 >> 24) & 0xff] ^ $t1[($e1 >> 16) & 0xff] ^ $t2[($e2 >> 8) & 0xff] ^ $t3[$e3 & 0xff] ^ $w[44];
|
||||
$s1 = $t0[($e1 >> 24) & 0xff] ^ $t1[($e2 >> 16) & 0xff] ^ $t2[($e3 >> 8) & 0xff] ^ $t3[$e0 & 0xff] ^ $w[45];
|
||||
$s2 = $t0[($e2 >> 24) & 0xff] ^ $t1[($e3 >> 16) & 0xff] ^ $t2[($e0 >> 8) & 0xff] ^ $t3[$e1 & 0xff] ^ $w[46];
|
||||
$e3 = $t0[($e3 >> 24) & 0xff] ^ $t1[($e0 >> 16) & 0xff] ^ $t2[($e1 >> 8) & 0xff] ^ $t3[$e2 & 0xff] ^ $w[47];
|
||||
// Note: Here we skip $s3 but using $e3
|
||||
|
||||
$e0 = $s0;
|
||||
$e1 = $s1;
|
||||
$e2 = $s2;
|
||||
// $e3 = $s3;
|
||||
}
|
||||
|
||||
// subWord
|
||||
$e0 = $sbox[$e0 & 0xff] | ($sbox[($e0 >> 8) & 0xff] << 8) | ($sbox[($e0 >> 16) & 0xff] << 16) | ($sbox[($e0 >> 24) & 0xff] << 24);
|
||||
$e1 = $sbox[$e1 & 0xff] | ($sbox[($e1 >> 8) & 0xff] << 8) | ($sbox[($e1 >> 16) & 0xff] << 16) | ($sbox[($e1 >> 24) & 0xff] << 24);
|
||||
$e2 = $sbox[$e2 & 0xff] | ($sbox[($e2 >> 8) & 0xff] << 8) | ($sbox[($e2 >> 16) & 0xff] << 16) | ($sbox[($e2 >> 24) & 0xff] << 24);
|
||||
$e3 = $sbox[$e3 & 0xff] | ($sbox[($e3 >> 8) & 0xff] << 8) | ($sbox[($e3 >> 16) & 0xff] << 16) | ($sbox[($e3 >> 24) & 0xff] << 24);
|
||||
|
||||
// shiftRows + addRoundKey
|
||||
return pack('N*',
|
||||
($e0 & 0xFF000000) ^ ($e1 & 0x00FF0000) ^ ($e2 & 0x0000FF00) ^ ($e3 & 0x000000FF) ^ $w[0],
|
||||
($e1 & 0xFF000000) ^ ($e2 & 0x00FF0000) ^ ($e3 & 0x0000FF00) ^ ($e0 & 0x000000FF) ^ $w[1],
|
||||
($e2 & 0xFF000000) ^ ($e3 & 0x00FF0000) ^ ($e0 & 0x0000FF00) ^ ($e1 & 0x000000FF) ^ $w[2],
|
||||
($e3 & 0xFF000000) ^ ($e0 & 0x00FF0000) ^ ($e1 & 0x0000FF00) ^ ($e2 & 0x000000FF) ^ $w[3]
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrypts a block
|
||||
*
|
||||
* Optimized over Crypt_Rijndael's implementation by means of loop unrolling.
|
||||
*
|
||||
* @see Crypt_Rijndael::_decryptBlock()
|
||||
* @access private
|
||||
* @param String $in
|
||||
* @return String
|
||||
*/
|
||||
function _decryptBlock($in)
|
||||
{
|
||||
$state = unpack('N*', $in);
|
||||
|
||||
$sbox = $this->isbox;
|
||||
$dw = $this->dw;
|
||||
$dt0 = $this->dt0;
|
||||
$dt1 = $this->dt1;
|
||||
$dt2 = $this->dt2;
|
||||
$dt3 = $this->dt3;
|
||||
|
||||
// addRoundKey
|
||||
$s0 = $state[1] ^ $dw[4];
|
||||
$s1 = $state[2] ^ $dw[5];
|
||||
$s2 = $state[3] ^ $dw[6];
|
||||
$s3 = $state[4] ^ $dw[7];
|
||||
|
||||
// invShiftRows + invSubBytes + invMixColumns + addRoundKey
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[8];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[9];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[10];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[11];
|
||||
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[12];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[13];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[14];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[15];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[16];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[17];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[18];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[19];
|
||||
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[20];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[21];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[22];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[23];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[24];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[25];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[26];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[27];
|
||||
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[28];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[29];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[30];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[31];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[32];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[33];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[34];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[35];
|
||||
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[36];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[37];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[38];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[39];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[40];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[41];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[42];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[43];
|
||||
|
||||
switch ($this->Nr) {
|
||||
case 10:
|
||||
break;
|
||||
|
||||
case 14:
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[44];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[45];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[46];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[47];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[48];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[49];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[50];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[51];
|
||||
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[52];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[53];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[54];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[55];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[56];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[57];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[58];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[59];
|
||||
break;
|
||||
|
||||
case 12:
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[44];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[45];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[46];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[47];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[48];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[49];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[50];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[51];
|
||||
break;
|
||||
|
||||
case 13:
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[44];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[45];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[46];
|
||||
$s3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[47];
|
||||
|
||||
$e0 = $dt0[($s0 >> 24) & 0xff] ^ $dt1[($s3 >> 16) & 0xff] ^ $dt2[($s2 >> 8) & 0xff] ^ $dt3[$s1 & 0xff] ^ $dw[48];
|
||||
$e1 = $dt0[($s1 >> 24) & 0xff] ^ $dt1[($s0 >> 16) & 0xff] ^ $dt2[($s3 >> 8) & 0xff] ^ $dt3[$s2 & 0xff] ^ $dw[49];
|
||||
$e2 = $dt0[($s2 >> 24) & 0xff] ^ $dt1[($s1 >> 16) & 0xff] ^ $dt2[($s0 >> 8) & 0xff] ^ $dt3[$s3 & 0xff] ^ $dw[50];
|
||||
$e3 = $dt0[($s3 >> 24) & 0xff] ^ $dt1[($s2 >> 16) & 0xff] ^ $dt2[($s1 >> 8) & 0xff] ^ $dt3[$s0 & 0xff] ^ $dw[51];
|
||||
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[52];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[53];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[54];
|
||||
$e3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[55];
|
||||
// Note: Here we skip $s3 but using $e3
|
||||
|
||||
$e0 = $s0;
|
||||
$e1 = $s1;
|
||||
$e2 = $s2;
|
||||
// $e3 = $s3;
|
||||
break;
|
||||
|
||||
default: // 11
|
||||
$s0 = $dt0[($e0 >> 24) & 0xff] ^ $dt1[($e3 >> 16) & 0xff] ^ $dt2[($e2 >> 8) & 0xff] ^ $dt3[$e1 & 0xff] ^ $dw[44];
|
||||
$s1 = $dt0[($e1 >> 24) & 0xff] ^ $dt1[($e0 >> 16) & 0xff] ^ $dt2[($e3 >> 8) & 0xff] ^ $dt3[$e2 & 0xff] ^ $dw[45];
|
||||
$s2 = $dt0[($e2 >> 24) & 0xff] ^ $dt1[($e1 >> 16) & 0xff] ^ $dt2[($e0 >> 8) & 0xff] ^ $dt3[$e3 & 0xff] ^ $dw[46];
|
||||
$e3 = $dt0[($e3 >> 24) & 0xff] ^ $dt1[($e2 >> 16) & 0xff] ^ $dt2[($e1 >> 8) & 0xff] ^ $dt3[$e0 & 0xff] ^ $dw[47];
|
||||
// Note: Here we skip $s3 but using $e3
|
||||
|
||||
$e0 = $s0;
|
||||
$e1 = $s1;
|
||||
$e2 = $s2;
|
||||
// $e3 = $s3;
|
||||
}
|
||||
|
||||
// invSubWord
|
||||
$e0 = $sbox[$e0 & 0xff] | ($sbox[($e0 >> 8) & 0xff] << 8) | ($sbox[($e0 >> 16) & 0xff] << 16) | ($sbox[($e0 >> 24) & 0xff] << 24);
|
||||
$e1 = $sbox[$e1 & 0xff] | ($sbox[($e1 >> 8) & 0xff] << 8) | ($sbox[($e1 >> 16) & 0xff] << 16) | ($sbox[($e1 >> 24) & 0xff] << 24);
|
||||
$e2 = $sbox[$e2 & 0xff] | ($sbox[($e2 >> 8) & 0xff] << 8) | ($sbox[($e2 >> 16) & 0xff] << 16) | ($sbox[($e2 >> 24) & 0xff] << 24);
|
||||
$e3 = $sbox[$e3 & 0xff] | ($sbox[($e3 >> 8) & 0xff] << 8) | ($sbox[($e3 >> 16) & 0xff] << 16) | ($sbox[($e3 >> 24) & 0xff] << 24);
|
||||
|
||||
// invShiftRows + addRoundKey
|
||||
return pack('N*',
|
||||
($e0 & 0xFF000000) ^ ($e3 & 0x00FF0000) ^ ($e2 & 0x0000FF00) ^ ($e1 & 0x000000FF) ^ $dw[0],
|
||||
($e1 & 0xFF000000) ^ ($e0 & 0x00FF0000) ^ ($e3 & 0x0000FF00) ^ ($e2 & 0x000000FF) ^ $dw[1],
|
||||
($e2 & 0xFF000000) ^ ($e1 & 0x00FF0000) ^ ($e0 & 0x0000FF00) ^ ($e3 & 0x000000FF) ^ $dw[2],
|
||||
($e3 & 0xFF000000) ^ ($e2 & 0x00FF0000) ^ ($e1 & 0x0000FF00) ^ ($e0 & 0x000000FF) ^ $dw[3]
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Treat consecutive "packets" as if they are a continuous buffer.
|
||||
*
|
||||
|
||||
@ -371,6 +371,47 @@ class Crypt_Rijndael {
|
||||
*/
|
||||
var $dt3;
|
||||
|
||||
/**
|
||||
* The SubByte S-Box
|
||||
*
|
||||
* @see Crypt_Rijndael::_encryptBlock()
|
||||
* @var Array
|
||||
* @access private
|
||||
*/
|
||||
var $sbox;
|
||||
|
||||
/**
|
||||
* The inverse SubByte S-Box
|
||||
*
|
||||
* @see Crypt_Rijndael::_decryptBlock()
|
||||
* @var Array
|
||||
* @access private
|
||||
*/
|
||||
var $isbox;
|
||||
|
||||
/**
|
||||
* Performance-optimized callback function for en/decrypt()
|
||||
*
|
||||
* @see Crypt_Rijndael::encrypt()
|
||||
* @see Crypt_Rijndael::decrypt()
|
||||
* @see Crypt_Rijndael::inline_crypt_setup()
|
||||
* @see Crypt_Rijndael::$use_inline_crypt
|
||||
* @var Callback
|
||||
* @access private
|
||||
*/
|
||||
var $inline_crypt;
|
||||
|
||||
/**
|
||||
* Holds whether performance-optimized $inline_crypt should be used or not.
|
||||
*
|
||||
* @see Crypt_Rijndael::Crypt_Rijndael()
|
||||
* @see Crypt_Rijndael::inline_crypt_setup()
|
||||
* @see Crypt_Rijndael::$inline_crypt
|
||||
* @var Boolean
|
||||
* @access private
|
||||
*/
|
||||
var $use_inline_crypt = true;
|
||||
|
||||
/**
|
||||
* Is the mode one that is paddable?
|
||||
*
|
||||
@ -518,6 +559,50 @@ class Crypt_Rijndael {
|
||||
$dt1[] = (($dt3[$i] << 16) & 0xFFFF0000) | (($dt3[$i] >> 16) & 0x0000FFFF);
|
||||
$dt0[] = (($dt3[$i] << 24) & 0xFF000000) | (($dt3[$i] >> 8) & 0x00FFFFFF);
|
||||
}
|
||||
|
||||
// sbox for the S-Box substitution
|
||||
$this->sbox = 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
|
||||
);
|
||||
|
||||
// sbox for the inverse S-Box substitution
|
||||
$this->isbox = 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
|
||||
);
|
||||
|
||||
if (!function_exists('create_function') || !is_callable('create_function')) {
|
||||
$this->use_inline_crypt = false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
@ -712,7 +797,13 @@ class Crypt_Rijndael {
|
||||
*/
|
||||
function encrypt($plaintext)
|
||||
{
|
||||
$this->_setup();
|
||||
if ($this->changed) {
|
||||
$this->_setup();
|
||||
}
|
||||
if ($this->use_inline_crypt) {
|
||||
$inline = $this->inline_crypt;
|
||||
return $inline('encrypt', $this, $plaintext);
|
||||
}
|
||||
if ($this->paddable) {
|
||||
$plaintext = $this->_pad($plaintext);
|
||||
}
|
||||
@ -842,8 +933,13 @@ class Crypt_Rijndael {
|
||||
*/
|
||||
function decrypt($ciphertext)
|
||||
{
|
||||
$this->_setup();
|
||||
|
||||
if ($this->changed) {
|
||||
$this->_setup();
|
||||
}
|
||||
if ($this->use_inline_crypt) {
|
||||
$inline = $this->inline_crypt;
|
||||
return $inline('decrypt', $this, $ciphertext);
|
||||
}
|
||||
if ($this->paddable) {
|
||||
// we pad with chr(0) since that's what mcrypt_generic does. to quote from http://php.net/function.mcrypt-generic :
|
||||
// "The data is padded with "\0" to make sure the length of the data is n * blocksize."
|
||||
@ -1169,10 +1265,6 @@ class Crypt_Rijndael {
|
||||
0x7D000000, 0xFA000000, 0xEF000000, 0xC5000000, 0x91000000
|
||||
);
|
||||
|
||||
if (!$this->changed) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (!$this->explicit_key_length) {
|
||||
// we do >> 2, here, and not >> 5, as we do above, since strlen($this->key) tells us the number of bytes - not bits
|
||||
$length = strlen($this->key) >> 2;
|
||||
@ -1235,7 +1327,7 @@ class Crypt_Rijndael {
|
||||
// 1. Apply the Key Expansion.
|
||||
// 2. Apply InvMixColumn to all Round Keys except the first and the last one."
|
||||
// also, see fips-197.pdf#page=27, "5.3.5 Equivalent Inverse Cipher"
|
||||
$temp = array();
|
||||
$temp = $this->w = $this->dw = array();
|
||||
for ($i = $row = $col = 0; $i < $length; $i++, $col++) {
|
||||
if ($col == $this->Nb) {
|
||||
if ($row == 0) {
|
||||
@ -1262,6 +1354,23 @@ class Crypt_Rijndael {
|
||||
|
||||
$this->dw[$row] = $this->w[$row];
|
||||
|
||||
// In case of $this->use_inline_crypt === true we have to use 1-dim key arrays (both ascending)
|
||||
if ($this->use_inline_crypt) {
|
||||
$this->dw = array_reverse($this->dw);
|
||||
$w = array_pop($this->w);
|
||||
$dw = array_pop($this->dw);
|
||||
foreach ($this->w as $r => $wr) {
|
||||
foreach ($wr as $c => $wc) {
|
||||
$w[] = $wc;
|
||||
$dw[] = $this->dw[$r][$c];
|
||||
}
|
||||
}
|
||||
$this->w = $w;
|
||||
$this->dw = $dw;
|
||||
|
||||
$this->inline_crypt_setup();
|
||||
}
|
||||
|
||||
$this->changed = false;
|
||||
}
|
||||
|
||||
@ -1272,45 +1381,13 @@ class Crypt_Rijndael {
|
||||
*/
|
||||
function _subWord($word)
|
||||
{
|
||||
static $sbox0, $sbox1, $sbox2, $sbox3;
|
||||
$sbox = $this->sbox;
|
||||
|
||||
if (empty($sbox0)) {
|
||||
$sbox0 = 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
|
||||
);
|
||||
|
||||
$sbox1 = array();
|
||||
$sbox2 = array();
|
||||
$sbox3 = array();
|
||||
|
||||
for ($i = 0; $i < 256; $i++) {
|
||||
$sbox1[] = $sbox0[$i] << 8;
|
||||
$sbox2[] = $sbox0[$i] << 16;
|
||||
$sbox3[] = $sbox0[$i] << 24;
|
||||
}
|
||||
}
|
||||
|
||||
return $sbox0[$word & 0x000000FF] |
|
||||
$sbox1[$word >> 8 & 0x000000FF] |
|
||||
$sbox2[$word >> 16 & 0x000000FF] |
|
||||
$sbox3[$word >> 24 & 0x000000FF];
|
||||
return $sbox[$word & 0x000000FF] |
|
||||
($sbox[$word >> 8 & 0x000000FF] << 8) |
|
||||
($sbox[$word >> 16 & 0x000000FF] << 16) |
|
||||
($sbox[$word >> 24 & 0x000000FF] << 24);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Performs inverse S-Box substitutions
|
||||
@ -1319,43 +1396,12 @@ class Crypt_Rijndael {
|
||||
*/
|
||||
function _invSubWord($word)
|
||||
{
|
||||
static $sbox0, $sbox1, $sbox2, $sbox3;
|
||||
$isbox = $this->isbox;
|
||||
|
||||
if (empty($sbox0)) {
|
||||
$sbox0 = 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
|
||||
);
|
||||
|
||||
$sbox1 = array();
|
||||
$sbox2 = array();
|
||||
$sbox3 = array();
|
||||
|
||||
for ($i = 0; $i < 256; $i++) {
|
||||
$sbox1[] = $sbox0[$i] << 8;
|
||||
$sbox2[] = $sbox0[$i] << 16;
|
||||
$sbox3[] = $sbox0[$i] << 24;
|
||||
}
|
||||
}
|
||||
|
||||
return $sbox0[$word & 0x000000FF] |
|
||||
$sbox1[$word >> 8 & 0x000000FF] |
|
||||
$sbox2[$word >> 16 & 0x000000FF] |
|
||||
$sbox3[$word >> 24 & 0x000000FF];
|
||||
return $isbox[$word & 0x000000FF] |
|
||||
($isbox[$word >> 8 & 0x000000FF] << 8) |
|
||||
($isbox[$word >> 16 & 0x000000FF] << 16) |
|
||||
($isbox[$word >> 24 & 0x000000FF] << 24);
|
||||
}
|
||||
|
||||
/**
|
||||
@ -1519,7 +1565,480 @@ class Crypt_Rijndael {
|
||||
$string = substr($string, $index);
|
||||
return $substr;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates performance-optimized function for de/encrypt(), storing it in $this->inline_crypt
|
||||
*
|
||||
* @see Crypt_Rijndael::encrypt()
|
||||
* @see Crypt_Rijndael::decrypt()
|
||||
* @access private
|
||||
*/
|
||||
function inline_crypt_setup()
|
||||
{
|
||||
$ST = microtime_float();
|
||||
// Note: inline_crypt_setup() will be called only if $this->changed === true
|
||||
// So here we are'nt under the same heavy timing-stress as we are in _de/encryptBlock() or de/encrypt().
|
||||
// However...the here generated function- $code, stored as php callback in $this->inline_crypt, must work as fast as even possible.
|
||||
|
||||
$lambda_functions =& Crypt_Rijndael::get_lambda_functions();
|
||||
$block_size = $this->block_size;
|
||||
$mode = $this->mode;
|
||||
|
||||
// The first 5 generated $lambda_functions will use the key-words hardcoded for better performance.
|
||||
// For memory reason we limit those ultra-optimized function code to 5.
|
||||
// After that, we use pure (extracted) integer vars for the key-words which is faster than accessing them via array.
|
||||
if (count($lambda_functions) < 5) {
|
||||
$w = $this->w;
|
||||
$dw = $this->dw;
|
||||
$init_encryptBlock = '';
|
||||
$init_decryptBlock = '';
|
||||
} else {
|
||||
for ($i = 0, $cw = count($this->w); $i < $cw; ++$i) {
|
||||
$w[] = '$w_'.$i;
|
||||
$dw[] = '$dw_'.$i;
|
||||
}
|
||||
$init_encryptBlock = 'extract($self->w, EXTR_PREFIX_ALL, "w");';
|
||||
$init_decryptBlock = 'extract($self->dw, EXTR_PREFIX_ALL, "dw");';
|
||||
}
|
||||
|
||||
$code_hash = md5("$mode, $block_size, " . implode(',', $w));
|
||||
|
||||
if (!isset($lambda_functions[$code_hash])) {
|
||||
$Nr = $this->Nr;
|
||||
$Nb = $this->Nb;
|
||||
$c = $this->c;
|
||||
|
||||
// Generating encrypt code:
|
||||
$init_encryptBlock.= '
|
||||
$t0 = $self->t0;
|
||||
$t1 = $self->t1;
|
||||
$t2 = $self->t2;
|
||||
$t3 = $self->t3;
|
||||
$sbox = $self->sbox;';
|
||||
|
||||
$s = 'e';
|
||||
$e = 's';
|
||||
$wc = $Nb - 1;
|
||||
|
||||
// Preround: addRoundKey
|
||||
$_encryptBlock = '$in = unpack("N*", $in);'."\n";
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_encryptBlock .= '$s'.$i.' = $in['.($i + 1).'] ^ '.$w[++$wc].";\n";
|
||||
}
|
||||
|
||||
// Mainrounds: shiftRows + subWord + mixColumns + addRoundKey
|
||||
for ($round = 1; $round < $Nr; ++$round) {
|
||||
list($s, $e) = array($e, $s);
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_encryptBlock.=
|
||||
'$'.$e.$i.' =
|
||||
$t0[($'.$s.$i .' >> 24) & 0xff] ^
|
||||
$t1[($'.$s.(($i + $c[1]) % $Nb).' >> 16) & 0xff] ^
|
||||
$t2[($'.$s.(($i + $c[2]) % $Nb).' >> 8) & 0xff] ^
|
||||
$t3[ $'.$s.(($i + $c[3]) % $Nb).' & 0xff] ^
|
||||
'.$w[++$wc].";\n";
|
||||
}
|
||||
}
|
||||
|
||||
// Finalround: subWord + shiftRows + addRoundKey
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_encryptBlock.=
|
||||
'$'.$e.$i.' =
|
||||
$sbox[ $'.$e.$i.' & 0xff] |
|
||||
($sbox[($'.$e.$i.' >> 8) & 0xff] << 8) |
|
||||
($sbox[($'.$e.$i.' >> 16) & 0xff] << 16) |
|
||||
($sbox[($'.$e.$i.' >> 24) & 0xff] << 24);'."\n";
|
||||
}
|
||||
$_encryptBlock .= '$in = pack("N*"'."\n";
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_encryptBlock.= ',
|
||||
($'.$e.$i .' & 0xFF000000) ^
|
||||
($'.$e.(($i + $c[1]) % $Nb).' & 0x00FF0000) ^
|
||||
($'.$e.(($i + $c[2]) % $Nb).' & 0x0000FF00) ^
|
||||
($'.$e.(($i + $c[3]) % $Nb).' & 0x000000FF) ^
|
||||
'.$w[$i]."\n";
|
||||
}
|
||||
$_encryptBlock .= ');';
|
||||
|
||||
// Generating decrypt code:
|
||||
$init_decryptBlock.= '
|
||||
$dt0 = $self->dt0;
|
||||
$dt1 = $self->dt1;
|
||||
$dt2 = $self->dt2;
|
||||
$dt3 = $self->dt3;
|
||||
$isbox = $self->isbox;';
|
||||
|
||||
$s = 'e';
|
||||
$e = 's';
|
||||
$wc = $Nb - 1;
|
||||
|
||||
// Preround: addRoundKey
|
||||
$_decryptBlock = '$in = unpack("N*", $in);'."\n";
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_decryptBlock .= '$s'.$i.' = $in['.($i + 1).'] ^ '.$dw[++$wc].';'."\n";
|
||||
}
|
||||
|
||||
// Mainrounds: shiftRows + subWord + mixColumns + addRoundKey
|
||||
for ($round = 1; $round < $Nr; ++$round) {
|
||||
list($s, $e) = array($e, $s);
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_decryptBlock.=
|
||||
'$'.$e.$i.' =
|
||||
$dt0[($'.$s.$i .' >> 24) & 0xff] ^
|
||||
$dt1[($'.$s.(($Nb + $i - $c[1]) % $Nb).' >> 16) & 0xff] ^
|
||||
$dt2[($'.$s.(($Nb + $i - $c[2]) % $Nb).' >> 8) & 0xff] ^
|
||||
$dt3[ $'.$s.(($Nb + $i - $c[3]) % $Nb).' & 0xff] ^
|
||||
'.$dw[++$wc].";\n";
|
||||
}
|
||||
}
|
||||
|
||||
// Finalround: subWord + shiftRows + addRoundKey
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_decryptBlock.=
|
||||
'$'.$e.$i.' =
|
||||
$isbox[ $'.$e.$i.' & 0xff] |
|
||||
($isbox[($'.$e.$i.' >> 8) & 0xff] << 8) |
|
||||
($isbox[($'.$e.$i.' >> 16) & 0xff] << 16) |
|
||||
($isbox[($'.$e.$i.' >> 24) & 0xff] << 24);'."\n";
|
||||
}
|
||||
$_decryptBlock .= '$in = pack("N*"'."\n";
|
||||
for ($i = 0; $i < $Nb; ++$i) {
|
||||
$_decryptBlock.= ',
|
||||
($'.$e.$i. ' & 0xFF000000) ^
|
||||
($'.$e.(($Nb + $i - $c[1]) % $Nb).' & 0x00FF0000) ^
|
||||
($'.$e.(($Nb + $i - $c[2]) % $Nb).' & 0x0000FF00) ^
|
||||
($'.$e.(($Nb + $i - $c[3]) % $Nb).' & 0x000000FF) ^
|
||||
'.$dw[$i]."\n";
|
||||
}
|
||||
$_decryptBlock .= ');';
|
||||
|
||||
// Generating mode of operation code:
|
||||
switch ($mode) {
|
||||
case CRYPT_RIJNDAEL_MODE_ECB:
|
||||
$encrypt = $init_encryptBlock . '
|
||||
$ciphertext = "";
|
||||
$text = $self->_pad($text);
|
||||
$plaintext_len = strlen($text);
|
||||
|
||||
for ($i = 0; $i < $plaintext_len; $i+= '.$block_size.') {
|
||||
$in = substr($text, $i, '.$block_size.');
|
||||
'.$_encryptBlock.'
|
||||
$ciphertext.= $in;
|
||||
}
|
||||
|
||||
return $ciphertext;
|
||||
';
|
||||
|
||||
$decrypt = $init_decryptBlock . '
|
||||
$plaintext = "";
|
||||
$text = str_pad($text, strlen($text) + ('.$block_size.' - strlen($text) % '.$block_size.') % '.$block_size.', chr(0));
|
||||
$ciphertext_len = strlen($text);
|
||||
|
||||
for ($i = 0; $i < $ciphertext_len; $i+= '.$block_size.') {
|
||||
$in = substr($text, $i, '.$block_size.');
|
||||
'.$_decryptBlock.'
|
||||
$plaintext.= $in;
|
||||
}
|
||||
|
||||
return $self->_unpad($plaintext);
|
||||
';
|
||||
break;
|
||||
case CRYPT_RIJNDAEL_MODE_CBC:
|
||||
$encrypt = $init_encryptBlock . '
|
||||
$ciphertext = "";
|
||||
$text = $self->_pad($text);
|
||||
$plaintext_len = strlen($text);
|
||||
|
||||
$in = $self->encryptIV;
|
||||
|
||||
for ($i = 0; $i < $plaintext_len; $i+= '.$block_size.') {
|
||||
$in = substr($text, $i, '.$block_size.') ^ $in;
|
||||
'.$_encryptBlock.'
|
||||
$ciphertext.= $in;
|
||||
}
|
||||
|
||||
if ($self->continuousBuffer) {
|
||||
$self->encryptIV = $in;
|
||||
}
|
||||
|
||||
return $ciphertext;
|
||||
';
|
||||
|
||||
$decrypt = $init_decryptBlock . '
|
||||
$plaintext = "";
|
||||
$text = str_pad($text, strlen($text) + ('.$block_size.' - strlen($text) % '.$block_size.') % '.$block_size.', chr(0));
|
||||
$ciphertext_len = strlen($text);
|
||||
|
||||
$iv = $self->decryptIV;
|
||||
|
||||
for ($i = 0; $i < $ciphertext_len; $i+= '.$block_size.') {
|
||||
$in = $block = substr($text, $i, '.$block_size.');
|
||||
'.$_decryptBlock.'
|
||||
$plaintext.= $in ^ $iv;
|
||||
$iv = $block;
|
||||
}
|
||||
|
||||
if ($self->continuousBuffer) {
|
||||
$self->decryptIV = $iv;
|
||||
}
|
||||
|
||||
return $self->_unpad($plaintext);
|
||||
';
|
||||
break;
|
||||
case CRYPT_RIJNDAEL_MODE_CTR:
|
||||
$encrypt = $init_encryptBlock . '
|
||||
$ciphertext = "";
|
||||
$plaintext_len = strlen($text);
|
||||
$xor = $self->encryptIV;
|
||||
$buffer = &$self->enbuffer;
|
||||
|
||||
if (strlen($buffer["encrypted"])) {
|
||||
for ($i = 0; $i < $plaintext_len; $i+= '.$block_size.') {
|
||||
$block = substr($text, $i, '.$block_size.');
|
||||
$in = $self->_generate_xor('.$block_size.', $xor);
|
||||
'.$_encryptBlock.'
|
||||
$buffer["encrypted"].= $in;
|
||||
$key = $self->_string_shift($buffer["encrypted"], '.$block_size.');
|
||||
$ciphertext.= $block ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($i = 0; $i < $plaintext_len; $i+= '.$block_size.') {
|
||||
$block = substr($text, $i, '.$block_size.');
|
||||
$in = $self->_generate_xor('.$block_size.', $xor);
|
||||
'.$_encryptBlock.'
|
||||
$key = $in;
|
||||
$ciphertext.= $block ^ $key;
|
||||
}
|
||||
}
|
||||
if ($self->continuousBuffer) {
|
||||
$self->encryptIV = $xor;
|
||||
if ($start = $plaintext_len % '.$block_size.') {
|
||||
$buffer["encrypted"] = substr($key, $start) . $buffer["encrypted"];
|
||||
}
|
||||
}
|
||||
|
||||
return $ciphertext;
|
||||
';
|
||||
|
||||
$decrypt = $init_encryptBlock . '
|
||||
$plaintext = "";
|
||||
$ciphertext_len = strlen($text);
|
||||
$xor = $self->decryptIV;
|
||||
$buffer = &$self->debuffer;
|
||||
|
||||
if (strlen($buffer["ciphertext"])) {
|
||||
for ($i = 0; $i < $ciphertext_len; $i+= '.$block_size.') {
|
||||
$block = substr($text, $i, '.$block_size.');
|
||||
$in = $self->_generate_xor('.$block_size.', $xor);
|
||||
'.$_encryptBlock.'
|
||||
$buffer["ciphertext"].= $in;
|
||||
$key = $self->_string_shift($buffer["ciphertext"], '.$block_size.');
|
||||
$plaintext.= $block ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($i = 0; $i < $ciphertext_len; $i+= '.$block_size.') {
|
||||
$block = substr($text, $i, '.$block_size.');
|
||||
$in = $self->_generate_xor('.$block_size.', $xor);
|
||||
'.$_encryptBlock.'
|
||||
$key = $in;
|
||||
$plaintext.= $block ^ $key;
|
||||
}
|
||||
}
|
||||
if ($self->continuousBuffer) {
|
||||
$self->decryptIV = $xor;
|
||||
if ($start = $ciphertext_len % '.$block_size.') {
|
||||
$buffer["ciphertext"] = substr($key, $start) . $buffer["ciphertext"];
|
||||
}
|
||||
}
|
||||
|
||||
return $plaintext;
|
||||
';
|
||||
break;
|
||||
case CRYPT_RIJNDAEL_MODE_CFB:
|
||||
$encrypt = $init_encryptBlock . '
|
||||
$ciphertext = "";
|
||||
$buffer = &$self->enbuffer;
|
||||
|
||||
if ($self->continuousBuffer) {
|
||||
$iv = &$self->encryptIV;
|
||||
$pos = &$buffer["pos"];
|
||||
} else {
|
||||
$iv = $self->encryptIV;
|
||||
$pos = 0;
|
||||
}
|
||||
$len = strlen($text);
|
||||
$i = 0;
|
||||
if ($pos) {
|
||||
$orig_pos = $pos;
|
||||
$max = '.$block_size.' - $pos;
|
||||
if ($len >= $max) {
|
||||
$i = $max;
|
||||
$len-= $max;
|
||||
$pos = 0;
|
||||
} else {
|
||||
$i = $len;
|
||||
$pos+= $len;
|
||||
$len = 0;
|
||||
}
|
||||
$ciphertext = substr($iv, $orig_pos) ^ $text;
|
||||
$iv = substr_replace($iv, $ciphertext, $orig_pos, $i);
|
||||
}
|
||||
while ($len >= '.$block_size.') {
|
||||
$in = $iv;
|
||||
'.$_encryptBlock.';
|
||||
$iv = $in ^ substr($text, $i, '.$block_size.');
|
||||
$ciphertext.= $iv;
|
||||
$len-= '.$block_size.';
|
||||
$i+= '.$block_size.';
|
||||
}
|
||||
if ($len) {
|
||||
$in = $iv;
|
||||
'.$_encryptBlock.'
|
||||
$iv = $in;
|
||||
$block = $iv ^ substr($text, $i);
|
||||
$iv = substr_replace($iv, $block, 0, $len);
|
||||
$ciphertext.= $block;
|
||||
$pos = $len;
|
||||
}
|
||||
return $ciphertext;
|
||||
';
|
||||
|
||||
$decrypt = $init_encryptBlock . '
|
||||
$plaintext = "";
|
||||
$buffer = &$self->debuffer;
|
||||
|
||||
if ($self->continuousBuffer) {
|
||||
$iv = &$self->decryptIV;
|
||||
$pos = &$buffer["pos"];
|
||||
} else {
|
||||
$iv = $self->decryptIV;
|
||||
$pos = 0;
|
||||
}
|
||||
$len = strlen($text);
|
||||
$i = 0;
|
||||
if ($pos) {
|
||||
$orig_pos = $pos;
|
||||
$max = '.$block_size.' - $pos;
|
||||
if ($len >= $max) {
|
||||
$i = $max;
|
||||
$len-= $max;
|
||||
$pos = 0;
|
||||
} else {
|
||||
$i = $len;
|
||||
$pos+= $len;
|
||||
$len = 0;
|
||||
}
|
||||
$plaintext = substr($iv, $orig_pos) ^ $text;
|
||||
$iv = substr_replace($iv, substr($text, 0, $i), $orig_pos, $i);
|
||||
}
|
||||
while ($len >= '.$block_size.') {
|
||||
$in = $iv;
|
||||
'.$_encryptBlock.'
|
||||
$iv = $in;
|
||||
$cb = substr($text, $i, '.$block_size.');
|
||||
$plaintext.= $iv ^ $cb;
|
||||
$iv = $cb;
|
||||
$len-= '.$block_size.';
|
||||
$i+= '.$block_size.';
|
||||
}
|
||||
if ($len) {
|
||||
$in = $iv;
|
||||
'.$_encryptBlock.'
|
||||
$iv = $in;
|
||||
$plaintext.= $iv ^ substr($text, $i);
|
||||
$iv = substr_replace($iv, substr($text, $i), 0, $len);
|
||||
$pos = $len;
|
||||
}
|
||||
|
||||
return $plaintext;
|
||||
';
|
||||
break;
|
||||
case CRYPT_RIJNDAEL_MODE_OFB:
|
||||
$encrypt = $init_encryptBlock . '
|
||||
$ciphertext = "";
|
||||
$plaintext_len = strlen($text);
|
||||
$xor = $self->encryptIV;
|
||||
$buffer = &$self->enbuffer;
|
||||
|
||||
if (strlen($buffer["xor"])) {
|
||||
for ($i = 0; $i < $plaintext_len; $i+= '.$block_size.') {
|
||||
$in = $xor;
|
||||
'.$_encryptBlock.'
|
||||
$xor = $in;
|
||||
$buffer["xor"].= $xor;
|
||||
$key = $self->_string_shift($buffer["xor"], '.$block_size.');
|
||||
$ciphertext.= substr($text, $i, '.$block_size.') ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($i = 0; $i < $plaintext_len; $i+= '.$block_size.') {
|
||||
$in = $xor;
|
||||
'.$_encryptBlock.'
|
||||
$xor = $in;
|
||||
$ciphertext.= substr($text, $i, '.$block_size.') ^ $xor;
|
||||
}
|
||||
$key = $xor;
|
||||
}
|
||||
if ($self->continuousBuffer) {
|
||||
$self->encryptIV = $xor;
|
||||
if ($start = $plaintext_len % '.$block_size.') {
|
||||
$buffer["xor"] = substr($key, $start) . $buffer["xor"];
|
||||
}
|
||||
}
|
||||
return $ciphertext;
|
||||
';
|
||||
|
||||
$decrypt = $init_encryptBlock . '
|
||||
$plaintext = "";
|
||||
$ciphertext_len = strlen($text);
|
||||
$xor = $self->decryptIV;
|
||||
$buffer = &$self->debuffer;
|
||||
|
||||
if (strlen($buffer["xor"])) {
|
||||
for ($i = 0; $i < $ciphertext_len; $i+= '.$block_size.') {
|
||||
$in = $xor;
|
||||
'.$_encryptBlock.'
|
||||
$xor = $in;
|
||||
$buffer["xor"].= $xor;
|
||||
$key = $self->_string_shift($buffer["xor"], '.$block_size.');
|
||||
$plaintext.= substr($text, $i, '.$block_size.') ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($i = 0; $i < $ciphertext_len; $i+= '.$block_size.') {
|
||||
$in = $xor;
|
||||
'.$_encryptBlock.'
|
||||
$xor = $in;
|
||||
$plaintext.= substr($text, $i, '.$block_size.') ^ $xor;
|
||||
}
|
||||
$key = $xor;
|
||||
}
|
||||
if ($self->continuousBuffer) {
|
||||
$self->decryptIV = $xor;
|
||||
if ($start = $ciphertext_len % '.$block_size.') {
|
||||
$buffer["xor"] = substr($key, $start) . $buffer["xor"];
|
||||
}
|
||||
}
|
||||
return $plaintext;
|
||||
';
|
||||
break;
|
||||
}
|
||||
$lambda_functions[$code_hash] = create_function('$action, &$self, $text', 'if ($action == "encrypt") { '.$encrypt.' } else { '.$decrypt.' }');
|
||||
}
|
||||
$this->inline_crypt = $lambda_functions[$code_hash];
|
||||
}
|
||||
|
||||
/**
|
||||
* Holds the lambda_functions table (classwide)
|
||||
*
|
||||
* @see Crypt_Rijndael::inline_crypt_setup()
|
||||
* @return Array
|
||||
* @access private
|
||||
*/
|
||||
function &get_lambda_functions()
|
||||
{
|
||||
static $functions = array();
|
||||
return $functions;
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
// vim6: fdl=1:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user