# HG changeset patch # User Dan # Date 1215113649 14400 # Node ID b051eb79b158f61dccd21d7b28b67d93c908fdbc # Parent 738c61b498a6eda9e8e32cd9e57a412d00464b0d As promised, dropped in the new librijndael. Benchmarks say about 3 times faster, but more performance testing will be done. diff -r 738c61b498a6 -r b051eb79b158 includes/rijndael.php --- a/includes/rijndael.php Thu Jul 03 15:08:35 2008 -0400 +++ b/includes/rijndael.php Thu Jul 03 15:34:09 2008 -0400 @@ -1,994 +1,1644 @@ - * Ported to PHP by Dan Fuhry - * @package phijndael - * @author Fritz Schneider - * @author Dan Fuhry - * @license BSD-style license + * AES (Rijndael) + * EBC and CBC modes + * + * Flash port by: + * André S. Barbosa + * http://www.codecta.com.br/rijndael.html + * This is free code! + * + * Original code from OpenSSL Library. + * Use is very closed to OpenSSL. */ + +/** + * rijndael-alg-fst.c + * + * @version 3.0 (December 2000) + * + * Optimised ANSI C code for the Rijndael cipher (now AES) + * + * @author Vincent Rijmen + * @author Antoon Bosselaers + * @author Paulo Barreto + * + * The original C code is released into the public domain. The Enano + * Project has relicensed this port under the GNU General Public + * License for license compatibility reasons. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + define ('ENC_HEX', 201); define ('ENC_BASE64', 202); define ('ENC_BINARY', 203); -$_aes_objcache = array(); +class librijndael2 +{ + //////////////////// CONVERSION FUNCTIONS /////////////////////////// + + // Byte to hex + static function byte2hex($byte) + { + if ( strlen(dechex(ord($byte))) < 2 ) + return ( "0" . dechex(ord($byte)) ); + else + return ( dechex(ord($byte)) ); + } + + + /* Convert String to Hex String + * Null byte cannot appear in middle of String. + * this function is necessary because toString(16) does not + * produces two hex caracters for 0 to 15. + */ + static function string2hex ($s) { + $hex = ''; + for ($x = 0; $x < strlen($s); $x++) { + $byte = $s{$x}; + $hex .= librijndael2::byte2hex($byte); + } + + return $hex; + } + + /* Convert Hex String to String + * 00 (NULL) is not converted! + * Hex String must be even number of chars (A must be 0A, F must be 0F, etc) + */ + static function hex2string($hex) { + $s = ''; + if (strlen($hex) % 2 == 1) { + librijndael2::trace("Error: Hex String must be even number of chars"); + return -1; + } -class AESCrypt { + for ( $i = 0; $i < strlen($hex); $i+=2 ) + { + $byte = $hex{$i} . $hex{$i+1}; + $s .= chr(hexdec($byte)); + } + + return $s; + } + + static function trace($error) + { + //$bt = debug_backtrace(); + echo("$error\n"); + //echo(print_r($bt, true)); + + exit(); + } + + static function parseInt($str) + { + if ( is_int($str) ) + return $str; + if ( !is_string($str) ) + librijndael2::trace('Error: non-string (' . gettype($str) . ') passed to librijndael2::parseInt(' . $str . ')'); + if ( substr($str, 0, 2) == '0x' ) + { + return ( preg_match('/^0x([a-f0-9][a-f0-9])+$/i', $str) ) ? eval("return $str;") : intval($str); + } + return intval($str); + } + + static function ord2hex($byte) + { + if ( !is_int($byte) ) + librijndael2::trace('Error: non-integer passed to ord2hex()'); + $result = strval(dechex($byte)); + if ( strlen($result) < 2 ) + $result = "0$result"; + return $result; + } +} + +class Crypt_Rijndael +{ + + //////////////////// TABLES, STRUCTURES... //////////////////////// + + var $Te0 = array( + 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d, + 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554, + 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d, + 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a, + 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87, + 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b, + 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea, + 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b, + 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a, + 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f, + 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108, + 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f, + 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e, + 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5, + 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d, + 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f, + 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e, + 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb, + 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce, + 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497, + 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c, + 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed, + 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b, + 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a, + 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16, + 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594, + 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81, + 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3, + 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a, + 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504, + 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163, + 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d, + 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f, + 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739, + 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47, + 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395, + 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f, + 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883, + 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c, + 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76, + 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e, + 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4, + 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6, + 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b, + 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7, + 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0, + 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25, + 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818, + 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72, + 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651, + 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21, + 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85, + 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa, + 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12, + 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0, + 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9, + 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133, + 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7, + 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920, + 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a, + 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17, + 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8, + 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11, + 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a + ); - var $debug = false; - var $mcrypt = false; - var $decrypt_cache = array(); - - // Rijndael parameters -- Valid values are 128, 192, or 256 + var $Te1 = array( + 0xa5c66363, 0x84f87c7c, 0x99ee7777, 0x8df67b7b, + 0x0dfff2f2, 0xbdd66b6b, 0xb1de6f6f, 0x5491c5c5, + 0x50603030, 0x03020101, 0xa9ce6767, 0x7d562b2b, + 0x19e7fefe, 0x62b5d7d7, 0xe64dabab, 0x9aec7676, + 0x458fcaca, 0x9d1f8282, 0x4089c9c9, 0x87fa7d7d, + 0x15effafa, 0xebb25959, 0xc98e4747, 0x0bfbf0f0, + 0xec41adad, 0x67b3d4d4, 0xfd5fa2a2, 0xea45afaf, + 0xbf239c9c, 0xf753a4a4, 0x96e47272, 0x5b9bc0c0, + 0xc275b7b7, 0x1ce1fdfd, 0xae3d9393, 0x6a4c2626, + 0x5a6c3636, 0x417e3f3f, 0x02f5f7f7, 0x4f83cccc, + 0x5c683434, 0xf451a5a5, 0x34d1e5e5, 0x08f9f1f1, + 0x93e27171, 0x73abd8d8, 0x53623131, 0x3f2a1515, + 0x0c080404, 0x5295c7c7, 0x65462323, 0x5e9dc3c3, + 0x28301818, 0xa1379696, 0x0f0a0505, 0xb52f9a9a, + 0x090e0707, 0x36241212, 0x9b1b8080, 0x3ddfe2e2, + 0x26cdebeb, 0x694e2727, 0xcd7fb2b2, 0x9fea7575, + 0x1b120909, 0x9e1d8383, 0x74582c2c, 0x2e341a1a, + 0x2d361b1b, 0xb2dc6e6e, 0xeeb45a5a, 0xfb5ba0a0, + 0xf6a45252, 0x4d763b3b, 0x61b7d6d6, 0xce7db3b3, + 0x7b522929, 0x3edde3e3, 0x715e2f2f, 0x97138484, + 0xf5a65353, 0x68b9d1d1, 0x00000000, 0x2cc1eded, + 0x60402020, 0x1fe3fcfc, 0xc879b1b1, 0xedb65b5b, + 0xbed46a6a, 0x468dcbcb, 0xd967bebe, 0x4b723939, + 0xde944a4a, 0xd4984c4c, 0xe8b05858, 0x4a85cfcf, + 0x6bbbd0d0, 0x2ac5efef, 0xe54faaaa, 0x16edfbfb, + 0xc5864343, 0xd79a4d4d, 0x55663333, 0x94118585, + 0xcf8a4545, 0x10e9f9f9, 0x06040202, 0x81fe7f7f, + 0xf0a05050, 0x44783c3c, 0xba259f9f, 0xe34ba8a8, + 0xf3a25151, 0xfe5da3a3, 0xc0804040, 0x8a058f8f, + 0xad3f9292, 0xbc219d9d, 0x48703838, 0x04f1f5f5, + 0xdf63bcbc, 0xc177b6b6, 0x75afdada, 0x63422121, + 0x30201010, 0x1ae5ffff, 0x0efdf3f3, 0x6dbfd2d2, + 0x4c81cdcd, 0x14180c0c, 0x35261313, 0x2fc3ecec, + 0xe1be5f5f, 0xa2359797, 0xcc884444, 0x392e1717, + 0x5793c4c4, 0xf255a7a7, 0x82fc7e7e, 0x477a3d3d, + 0xacc86464, 0xe7ba5d5d, 0x2b321919, 0x95e67373, + 0xa0c06060, 0x98198181, 0xd19e4f4f, 0x7fa3dcdc, + 0x66442222, 0x7e542a2a, 0xab3b9090, 0x830b8888, + 0xca8c4646, 0x29c7eeee, 0xd36bb8b8, 0x3c281414, + 0x79a7dede, 0xe2bc5e5e, 0x1d160b0b, 0x76addbdb, + 0x3bdbe0e0, 0x56643232, 0x4e743a3a, 0x1e140a0a, + 0xdb924949, 0x0a0c0606, 0x6c482424, 0xe4b85c5c, + 0x5d9fc2c2, 0x6ebdd3d3, 0xef43acac, 0xa6c46262, + 0xa8399191, 0xa4319595, 0x37d3e4e4, 0x8bf27979, + 0x32d5e7e7, 0x438bc8c8, 0x596e3737, 0xb7da6d6d, + 0x8c018d8d, 0x64b1d5d5, 0xd29c4e4e, 0xe049a9a9, + 0xb4d86c6c, 0xfaac5656, 0x07f3f4f4, 0x25cfeaea, + 0xafca6565, 0x8ef47a7a, 0xe947aeae, 0x18100808, + 0xd56fbaba, 0x88f07878, 0x6f4a2525, 0x725c2e2e, + 0x24381c1c, 0xf157a6a6, 0xc773b4b4, 0x5197c6c6, + 0x23cbe8e8, 0x7ca1dddd, 0x9ce87474, 0x213e1f1f, + 0xdd964b4b, 0xdc61bdbd, 0x860d8b8b, 0x850f8a8a, + 0x90e07070, 0x427c3e3e, 0xc471b5b5, 0xaacc6666, + 0xd8904848, 0x05060303, 0x01f7f6f6, 0x121c0e0e, + 0xa3c26161, 0x5f6a3535, 0xf9ae5757, 0xd069b9b9, + 0x91178686, 0x5899c1c1, 0x273a1d1d, 0xb9279e9e, + 0x38d9e1e1, 0x13ebf8f8, 0xb32b9898, 0x33221111, + 0xbbd26969, 0x70a9d9d9, 0x89078e8e, 0xa7339494, + 0xb62d9b9b, 0x223c1e1e, 0x92158787, 0x20c9e9e9, + 0x4987cece, 0xffaa5555, 0x78502828, 0x7aa5dfdf, + 0x8f038c8c, 0xf859a1a1, 0x80098989, 0x171a0d0d, + 0xda65bfbf, 0x31d7e6e6, 0xc6844242, 0xb8d06868, + 0xc3824141, 0xb0299999, 0x775a2d2d, 0x111e0f0f, + 0xcb7bb0b0, 0xfca85454, 0xd66dbbbb, 0x3a2c1616 + ); + + var $Te2 = array( + 0x63a5c663, 0x7c84f87c, 0x7799ee77, 0x7b8df67b, + 0xf20dfff2, 0x6bbdd66b, 0x6fb1de6f, 0xc55491c5, + 0x30506030, 0x01030201, 0x67a9ce67, 0x2b7d562b, + 0xfe19e7fe, 0xd762b5d7, 0xabe64dab, 0x769aec76, + 0xca458fca, 0x829d1f82, 0xc94089c9, 0x7d87fa7d, + 0xfa15effa, 0x59ebb259, 0x47c98e47, 0xf00bfbf0, + 0xadec41ad, 0xd467b3d4, 0xa2fd5fa2, 0xafea45af, + 0x9cbf239c, 0xa4f753a4, 0x7296e472, 0xc05b9bc0, + 0xb7c275b7, 0xfd1ce1fd, 0x93ae3d93, 0x266a4c26, + 0x365a6c36, 0x3f417e3f, 0xf702f5f7, 0xcc4f83cc, + 0x345c6834, 0xa5f451a5, 0xe534d1e5, 0xf108f9f1, + 0x7193e271, 0xd873abd8, 0x31536231, 0x153f2a15, + 0x040c0804, 0xc75295c7, 0x23654623, 0xc35e9dc3, + 0x18283018, 0x96a13796, 0x050f0a05, 0x9ab52f9a, + 0x07090e07, 0x12362412, 0x809b1b80, 0xe23ddfe2, + 0xeb26cdeb, 0x27694e27, 0xb2cd7fb2, 0x759fea75, + 0x091b1209, 0x839e1d83, 0x2c74582c, 0x1a2e341a, + 0x1b2d361b, 0x6eb2dc6e, 0x5aeeb45a, 0xa0fb5ba0, + 0x52f6a452, 0x3b4d763b, 0xd661b7d6, 0xb3ce7db3, + 0x297b5229, 0xe33edde3, 0x2f715e2f, 0x84971384, + 0x53f5a653, 0xd168b9d1, 0x00000000, 0xed2cc1ed, + 0x20604020, 0xfc1fe3fc, 0xb1c879b1, 0x5bedb65b, + 0x6abed46a, 0xcb468dcb, 0xbed967be, 0x394b7239, + 0x4ade944a, 0x4cd4984c, 0x58e8b058, 0xcf4a85cf, + 0xd06bbbd0, 0xef2ac5ef, 0xaae54faa, 0xfb16edfb, + 0x43c58643, 0x4dd79a4d, 0x33556633, 0x85941185, + 0x45cf8a45, 0xf910e9f9, 0x02060402, 0x7f81fe7f, + 0x50f0a050, 0x3c44783c, 0x9fba259f, 0xa8e34ba8, + 0x51f3a251, 0xa3fe5da3, 0x40c08040, 0x8f8a058f, + 0x92ad3f92, 0x9dbc219d, 0x38487038, 0xf504f1f5, + 0xbcdf63bc, 0xb6c177b6, 0xda75afda, 0x21634221, + 0x10302010, 0xff1ae5ff, 0xf30efdf3, 0xd26dbfd2, + 0xcd4c81cd, 0x0c14180c, 0x13352613, 0xec2fc3ec, + 0x5fe1be5f, 0x97a23597, 0x44cc8844, 0x17392e17, + 0xc45793c4, 0xa7f255a7, 0x7e82fc7e, 0x3d477a3d, + 0x64acc864, 0x5de7ba5d, 0x192b3219, 0x7395e673, + 0x60a0c060, 0x81981981, 0x4fd19e4f, 0xdc7fa3dc, + 0x22664422, 0x2a7e542a, 0x90ab3b90, 0x88830b88, + 0x46ca8c46, 0xee29c7ee, 0xb8d36bb8, 0x143c2814, + 0xde79a7de, 0x5ee2bc5e, 0x0b1d160b, 0xdb76addb, + 0xe03bdbe0, 0x32566432, 0x3a4e743a, 0x0a1e140a, + 0x49db9249, 0x060a0c06, 0x246c4824, 0x5ce4b85c, + 0xc25d9fc2, 0xd36ebdd3, 0xacef43ac, 0x62a6c462, + 0x91a83991, 0x95a43195, 0xe437d3e4, 0x798bf279, + 0xe732d5e7, 0xc8438bc8, 0x37596e37, 0x6db7da6d, + 0x8d8c018d, 0xd564b1d5, 0x4ed29c4e, 0xa9e049a9, + 0x6cb4d86c, 0x56faac56, 0xf407f3f4, 0xea25cfea, + 0x65afca65, 0x7a8ef47a, 0xaee947ae, 0x08181008, + 0xbad56fba, 0x7888f078, 0x256f4a25, 0x2e725c2e, + 0x1c24381c, 0xa6f157a6, 0xb4c773b4, 0xc65197c6, + 0xe823cbe8, 0xdd7ca1dd, 0x749ce874, 0x1f213e1f, + 0x4bdd964b, 0xbddc61bd, 0x8b860d8b, 0x8a850f8a, + 0x7090e070, 0x3e427c3e, 0xb5c471b5, 0x66aacc66, + 0x48d89048, 0x03050603, 0xf601f7f6, 0x0e121c0e, + 0x61a3c261, 0x355f6a35, 0x57f9ae57, 0xb9d069b9, + 0x86911786, 0xc15899c1, 0x1d273a1d, 0x9eb9279e, + 0xe138d9e1, 0xf813ebf8, 0x98b32b98, 0x11332211, + 0x69bbd269, 0xd970a9d9, 0x8e89078e, 0x94a73394, + 0x9bb62d9b, 0x1e223c1e, 0x87921587, 0xe920c9e9, + 0xce4987ce, 0x55ffaa55, 0x28785028, 0xdf7aa5df, + 0x8c8f038c, 0xa1f859a1, 0x89800989, 0x0d171a0d, + 0xbfda65bf, 0xe631d7e6, 0x42c68442, 0x68b8d068, + 0x41c38241, 0x99b02999, 0x2d775a2d, 0x0f111e0f, + 0xb0cb7bb0, 0x54fca854, 0xbbd66dbb, 0x163a2c16 + ); + + var $Te3 = 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 $Te4 = array( + 0x63636363, 0x7c7c7c7c, 0x77777777, 0x7b7b7b7b, + 0xf2f2f2f2, 0x6b6b6b6b, 0x6f6f6f6f, 0xc5c5c5c5, + 0x30303030, 0x01010101, 0x67676767, 0x2b2b2b2b, + 0xfefefefe, 0xd7d7d7d7, 0xabababab, 0x76767676, + 0xcacacaca, 0x82828282, 0xc9c9c9c9, 0x7d7d7d7d, + 0xfafafafa, 0x59595959, 0x47474747, 0xf0f0f0f0, + 0xadadadad, 0xd4d4d4d4, 0xa2a2a2a2, 0xafafafaf, + 0x9c9c9c9c, 0xa4a4a4a4, 0x72727272, 0xc0c0c0c0, + 0xb7b7b7b7, 0xfdfdfdfd, 0x93939393, 0x26262626, + 0x36363636, 0x3f3f3f3f, 0xf7f7f7f7, 0xcccccccc, + 0x34343434, 0xa5a5a5a5, 0xe5e5e5e5, 0xf1f1f1f1, + 0x71717171, 0xd8d8d8d8, 0x31313131, 0x15151515, + 0x04040404, 0xc7c7c7c7, 0x23232323, 0xc3c3c3c3, + 0x18181818, 0x96969696, 0x05050505, 0x9a9a9a9a, + 0x07070707, 0x12121212, 0x80808080, 0xe2e2e2e2, + 0xebebebeb, 0x27272727, 0xb2b2b2b2, 0x75757575, + 0x09090909, 0x83838383, 0x2c2c2c2c, 0x1a1a1a1a, + 0x1b1b1b1b, 0x6e6e6e6e, 0x5a5a5a5a, 0xa0a0a0a0, + 0x52525252, 0x3b3b3b3b, 0xd6d6d6d6, 0xb3b3b3b3, + 0x29292929, 0xe3e3e3e3, 0x2f2f2f2f, 0x84848484, + 0x53535353, 0xd1d1d1d1, 0x00000000, 0xedededed, + 0x20202020, 0xfcfcfcfc, 0xb1b1b1b1, 0x5b5b5b5b, + 0x6a6a6a6a, 0xcbcbcbcb, 0xbebebebe, 0x39393939, + 0x4a4a4a4a, 0x4c4c4c4c, 0x58585858, 0xcfcfcfcf, + 0xd0d0d0d0, 0xefefefef, 0xaaaaaaaa, 0xfbfbfbfb, + 0x43434343, 0x4d4d4d4d, 0x33333333, 0x85858585, + 0x45454545, 0xf9f9f9f9, 0x02020202, 0x7f7f7f7f, + 0x50505050, 0x3c3c3c3c, 0x9f9f9f9f, 0xa8a8a8a8, + 0x51515151, 0xa3a3a3a3, 0x40404040, 0x8f8f8f8f, + 0x92929292, 0x9d9d9d9d, 0x38383838, 0xf5f5f5f5, + 0xbcbcbcbc, 0xb6b6b6b6, 0xdadadada, 0x21212121, + 0x10101010, 0xffffffff, 0xf3f3f3f3, 0xd2d2d2d2, + 0xcdcdcdcd, 0x0c0c0c0c, 0x13131313, 0xecececec, + 0x5f5f5f5f, 0x97979797, 0x44444444, 0x17171717, + 0xc4c4c4c4, 0xa7a7a7a7, 0x7e7e7e7e, 0x3d3d3d3d, + 0x64646464, 0x5d5d5d5d, 0x19191919, 0x73737373, + 0x60606060, 0x81818181, 0x4f4f4f4f, 0xdcdcdcdc, + 0x22222222, 0x2a2a2a2a, 0x90909090, 0x88888888, + 0x46464646, 0xeeeeeeee, 0xb8b8b8b8, 0x14141414, + 0xdededede, 0x5e5e5e5e, 0x0b0b0b0b, 0xdbdbdbdb, + 0xe0e0e0e0, 0x32323232, 0x3a3a3a3a, 0x0a0a0a0a, + 0x49494949, 0x06060606, 0x24242424, 0x5c5c5c5c, + 0xc2c2c2c2, 0xd3d3d3d3, 0xacacacac, 0x62626262, + 0x91919191, 0x95959595, 0xe4e4e4e4, 0x79797979, + 0xe7e7e7e7, 0xc8c8c8c8, 0x37373737, 0x6d6d6d6d, + 0x8d8d8d8d, 0xd5d5d5d5, 0x4e4e4e4e, 0xa9a9a9a9, + 0x6c6c6c6c, 0x56565656, 0xf4f4f4f4, 0xeaeaeaea, + 0x65656565, 0x7a7a7a7a, 0xaeaeaeae, 0x08080808, + 0xbabababa, 0x78787878, 0x25252525, 0x2e2e2e2e, + 0x1c1c1c1c, 0xa6a6a6a6, 0xb4b4b4b4, 0xc6c6c6c6, + 0xe8e8e8e8, 0xdddddddd, 0x74747474, 0x1f1f1f1f, + 0x4b4b4b4b, 0xbdbdbdbd, 0x8b8b8b8b, 0x8a8a8a8a, + 0x70707070, 0x3e3e3e3e, 0xb5b5b5b5, 0x66666666, + 0x48484848, 0x03030303, 0xf6f6f6f6, 0x0e0e0e0e, + 0x61616161, 0x35353535, 0x57575757, 0xb9b9b9b9, + 0x86868686, 0xc1c1c1c1, 0x1d1d1d1d, 0x9e9e9e9e, + 0xe1e1e1e1, 0xf8f8f8f8, 0x98989898, 0x11111111, + 0x69696969, 0xd9d9d9d9, 0x8e8e8e8e, 0x94949494, + 0x9b9b9b9b, 0x1e1e1e1e, 0x87878787, 0xe9e9e9e9, + 0xcececece, 0x55555555, 0x28282828, 0xdfdfdfdf, + 0x8c8c8c8c, 0xa1a1a1a1, 0x89898989, 0x0d0d0d0d, + 0xbfbfbfbf, 0xe6e6e6e6, 0x42424242, 0x68686868, + 0x41414141, 0x99999999, 0x2d2d2d2d, 0x0f0f0f0f, + 0xb0b0b0b0, 0x54545454, 0xbbbbbbbb, 0x16161616 + ); - var $keySizeInBits = 128; - var $blockSizeInBits = 128; + var $Td0 = array( + 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96, + 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393, + 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25, + 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f, + 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1, + 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6, + 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da, + 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844, + 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd, + 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4, + 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45, + 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94, + 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7, + 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a, + 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5, + 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c, + 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1, + 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a, + 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75, + 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051, + 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46, + 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff, + 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77, + 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb, + 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000, + 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e, + 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927, + 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a, + 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e, + 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16, + 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d, + 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8, + 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd, + 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34, + 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163, + 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120, + 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d, + 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0, + 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422, + 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef, + 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36, + 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4, + 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662, + 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5, + 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3, + 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b, + 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8, + 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6, + 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6, + 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0, + 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815, + 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f, + 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df, + 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f, + 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e, + 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713, + 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89, + 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c, + 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf, + 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86, + 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f, + 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541, + 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190, + 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742 + ); + + var $Td1 = array( + 0x5051f4a7, 0x537e4165, 0xc31a17a4, 0x963a275e, + 0xcb3bab6b, 0xf11f9d45, 0xabacfa58, 0x934be303, + 0x552030fa, 0xf6ad766d, 0x9188cc76, 0x25f5024c, + 0xfc4fe5d7, 0xd7c52acb, 0x80263544, 0x8fb562a3, + 0x49deb15a, 0x6725ba1b, 0x9845ea0e, 0xe15dfec0, + 0x02c32f75, 0x12814cf0, 0xa38d4697, 0xc66bd3f9, + 0xe7038f5f, 0x9515929c, 0xebbf6d7a, 0xda955259, + 0x2dd4be83, 0xd3587421, 0x2949e069, 0x448ec9c8, + 0x6a75c289, 0x78f48e79, 0x6b99583e, 0xdd27b971, + 0xb6bee14f, 0x17f088ad, 0x66c920ac, 0xb47dce3a, + 0x1863df4a, 0x82e51a31, 0x60975133, 0x4562537f, + 0xe0b16477, 0x84bb6bae, 0x1cfe81a0, 0x94f9082b, + 0x58704868, 0x198f45fd, 0x8794de6c, 0xb7527bf8, + 0x23ab73d3, 0xe2724b02, 0x57e31f8f, 0x2a6655ab, + 0x07b2eb28, 0x032fb5c2, 0x9a86c57b, 0xa5d33708, + 0xf2302887, 0xb223bfa5, 0xba02036a, 0x5ced1682, + 0x2b8acf1c, 0x92a779b4, 0xf0f307f2, 0xa14e69e2, + 0xcd65daf4, 0xd50605be, 0x1fd13462, 0x8ac4a6fe, + 0x9d342e53, 0xa0a2f355, 0x32058ae1, 0x75a4f6eb, + 0x390b83ec, 0xaa4060ef, 0x065e719f, 0x51bd6e10, + 0xf93e218a, 0x3d96dd06, 0xaedd3e05, 0x464de6bd, + 0xb591548d, 0x0571c45d, 0x6f0406d4, 0xff605015, + 0x241998fb, 0x97d6bde9, 0xcc894043, 0x7767d99e, + 0xbdb0e842, 0x8807898b, 0x38e7195b, 0xdb79c8ee, + 0x47a17c0a, 0xe97c420f, 0xc9f8841e, 0x00000000, + 0x83098086, 0x48322bed, 0xac1e1170, 0x4e6c5a72, + 0xfbfd0eff, 0x560f8538, 0x1e3daed5, 0x27362d39, + 0x640a0fd9, 0x21685ca6, 0xd19b5b54, 0x3a24362e, + 0xb10c0a67, 0x0f9357e7, 0xd2b4ee96, 0x9e1b9b91, + 0x4f80c0c5, 0xa261dc20, 0x695a774b, 0x161c121a, + 0x0ae293ba, 0xe5c0a02a, 0x433c22e0, 0x1d121b17, + 0x0b0e090d, 0xadf28bc7, 0xb92db6a8, 0xc8141ea9, + 0x8557f119, 0x4caf7507, 0xbbee99dd, 0xfda37f60, + 0x9ff70126, 0xbc5c72f5, 0xc544663b, 0x345bfb7e, + 0x768b4329, 0xdccb23c6, 0x68b6edfc, 0x63b8e4f1, + 0xcad731dc, 0x10426385, 0x40139722, 0x2084c611, + 0x7d854a24, 0xf8d2bb3d, 0x11aef932, 0x6dc729a1, + 0x4b1d9e2f, 0xf3dcb230, 0xec0d8652, 0xd077c1e3, + 0x6c2bb316, 0x99a970b9, 0xfa119448, 0x2247e964, + 0xc4a8fc8c, 0x1aa0f03f, 0xd8567d2c, 0xef223390, + 0xc787494e, 0xc1d938d1, 0xfe8ccaa2, 0x3698d40b, + 0xcfa6f581, 0x28a57ade, 0x26dab78e, 0xa43fadbf, + 0xe42c3a9d, 0x0d507892, 0x9b6a5fcc, 0x62547e46, + 0xc2f68d13, 0xe890d8b8, 0x5e2e39f7, 0xf582c3af, + 0xbe9f5d80, 0x7c69d093, 0xa96fd52d, 0xb3cf2512, + 0x3bc8ac99, 0xa710187d, 0x6ee89c63, 0x7bdb3bbb, + 0x09cd2678, 0xf46e5918, 0x01ec9ab7, 0xa8834f9a, + 0x65e6956e, 0x7eaaffe6, 0x0821bccf, 0xe6ef15e8, + 0xd9bae79b, 0xce4a6f36, 0xd4ea9f09, 0xd629b07c, + 0xaf31a4b2, 0x312a3f23, 0x30c6a594, 0xc035a266, + 0x37744ebc, 0xa6fc82ca, 0xb0e090d0, 0x1533a7d8, + 0x4af10498, 0xf741ecda, 0x0e7fcd50, 0x2f1791f6, + 0x8d764dd6, 0x4d43efb0, 0x54ccaa4d, 0xdfe49604, + 0xe39ed1b5, 0x1b4c6a88, 0xb8c12c1f, 0x7f466551, + 0x049d5eea, 0x5d018c35, 0x73fa8774, 0x2efb0b41, + 0x5ab3671d, 0x5292dbd2, 0x33e91056, 0x136dd647, + 0x8c9ad761, 0x7a37a10c, 0x8e59f814, 0x89eb133c, + 0xeecea927, 0x35b761c9, 0xede11ce5, 0x3c7a47b1, + 0x599cd2df, 0x3f55f273, 0x791814ce, 0xbf73c737, + 0xea53f7cd, 0x5b5ffdaa, 0x14df3d6f, 0x867844db, + 0x81caaff3, 0x3eb968c4, 0x2c382434, 0x5fc2a340, + 0x72161dc3, 0x0cbce225, 0x8b283c49, 0x41ff0d95, + 0x7139a801, 0xde080cb3, 0x9cd8b4e4, 0x906456c1, + 0x617bcb84, 0x70d532b6, 0x74486c5c, 0x42d0b857 + ); + + var $Td2 = array( + 0xa75051f4, 0x65537e41, 0xa4c31a17, 0x5e963a27, + 0x6bcb3bab, 0x45f11f9d, 0x58abacfa, 0x03934be3, + 0xfa552030, 0x6df6ad76, 0x769188cc, 0x4c25f502, + 0xd7fc4fe5, 0xcbd7c52a, 0x44802635, 0xa38fb562, + 0x5a49deb1, 0x1b6725ba, 0x0e9845ea, 0xc0e15dfe, + 0x7502c32f, 0xf012814c, 0x97a38d46, 0xf9c66bd3, + 0x5fe7038f, 0x9c951592, 0x7aebbf6d, 0x59da9552, + 0x832dd4be, 0x21d35874, 0x692949e0, 0xc8448ec9, + 0x896a75c2, 0x7978f48e, 0x3e6b9958, 0x71dd27b9, + 0x4fb6bee1, 0xad17f088, 0xac66c920, 0x3ab47dce, + 0x4a1863df, 0x3182e51a, 0x33609751, 0x7f456253, + 0x77e0b164, 0xae84bb6b, 0xa01cfe81, 0x2b94f908, + 0x68587048, 0xfd198f45, 0x6c8794de, 0xf8b7527b, + 0xd323ab73, 0x02e2724b, 0x8f57e31f, 0xab2a6655, + 0x2807b2eb, 0xc2032fb5, 0x7b9a86c5, 0x08a5d337, + 0x87f23028, 0xa5b223bf, 0x6aba0203, 0x825ced16, + 0x1c2b8acf, 0xb492a779, 0xf2f0f307, 0xe2a14e69, + 0xf4cd65da, 0xbed50605, 0x621fd134, 0xfe8ac4a6, + 0x539d342e, 0x55a0a2f3, 0xe132058a, 0xeb75a4f6, + 0xec390b83, 0xefaa4060, 0x9f065e71, 0x1051bd6e, + 0x8af93e21, 0x063d96dd, 0x05aedd3e, 0xbd464de6, + 0x8db59154, 0x5d0571c4, 0xd46f0406, 0x15ff6050, + 0xfb241998, 0xe997d6bd, 0x43cc8940, 0x9e7767d9, + 0x42bdb0e8, 0x8b880789, 0x5b38e719, 0xeedb79c8, + 0x0a47a17c, 0x0fe97c42, 0x1ec9f884, 0x00000000, + 0x86830980, 0xed48322b, 0x70ac1e11, 0x724e6c5a, + 0xfffbfd0e, 0x38560f85, 0xd51e3dae, 0x3927362d, + 0xd9640a0f, 0xa621685c, 0x54d19b5b, 0x2e3a2436, + 0x67b10c0a, 0xe70f9357, 0x96d2b4ee, 0x919e1b9b, + 0xc54f80c0, 0x20a261dc, 0x4b695a77, 0x1a161c12, + 0xba0ae293, 0x2ae5c0a0, 0xe0433c22, 0x171d121b, + 0x0d0b0e09, 0xc7adf28b, 0xa8b92db6, 0xa9c8141e, + 0x198557f1, 0x074caf75, 0xddbbee99, 0x60fda37f, + 0x269ff701, 0xf5bc5c72, 0x3bc54466, 0x7e345bfb, + 0x29768b43, 0xc6dccb23, 0xfc68b6ed, 0xf163b8e4, + 0xdccad731, 0x85104263, 0x22401397, 0x112084c6, + 0x247d854a, 0x3df8d2bb, 0x3211aef9, 0xa16dc729, + 0x2f4b1d9e, 0x30f3dcb2, 0x52ec0d86, 0xe3d077c1, + 0x166c2bb3, 0xb999a970, 0x48fa1194, 0x642247e9, + 0x8cc4a8fc, 0x3f1aa0f0, 0x2cd8567d, 0x90ef2233, + 0x4ec78749, 0xd1c1d938, 0xa2fe8cca, 0x0b3698d4, + 0x81cfa6f5, 0xde28a57a, 0x8e26dab7, 0xbfa43fad, + 0x9de42c3a, 0x920d5078, 0xcc9b6a5f, 0x4662547e, + 0x13c2f68d, 0xb8e890d8, 0xf75e2e39, 0xaff582c3, + 0x80be9f5d, 0x937c69d0, 0x2da96fd5, 0x12b3cf25, + 0x993bc8ac, 0x7da71018, 0x636ee89c, 0xbb7bdb3b, + 0x7809cd26, 0x18f46e59, 0xb701ec9a, 0x9aa8834f, + 0x6e65e695, 0xe67eaaff, 0xcf0821bc, 0xe8e6ef15, + 0x9bd9bae7, 0x36ce4a6f, 0x09d4ea9f, 0x7cd629b0, + 0xb2af31a4, 0x23312a3f, 0x9430c6a5, 0x66c035a2, + 0xbc37744e, 0xcaa6fc82, 0xd0b0e090, 0xd81533a7, + 0x984af104, 0xdaf741ec, 0x500e7fcd, 0xf62f1791, + 0xd68d764d, 0xb04d43ef, 0x4d54ccaa, 0x04dfe496, + 0xb5e39ed1, 0x881b4c6a, 0x1fb8c12c, 0x517f4665, + 0xea049d5e, 0x355d018c, 0x7473fa87, 0x412efb0b, + 0x1d5ab367, 0xd25292db, 0x5633e910, 0x47136dd6, + 0x618c9ad7, 0x0c7a37a1, 0x148e59f8, 0x3c89eb13, + 0x27eecea9, 0xc935b761, 0xe5ede11c, 0xb13c7a47, + 0xdf599cd2, 0x733f55f2, 0xce791814, 0x37bf73c7, + 0xcdea53f7, 0xaa5b5ffd, 0x6f14df3d, 0xdb867844, + 0xf381caaf, 0xc43eb968, 0x342c3824, 0x405fc2a3, + 0xc372161d, 0x250cbce2, 0x498b283c, 0x9541ff0d, + 0x017139a8, 0xb3de080c, 0xe49cd8b4, 0xc1906456, + 0x84617bcb, 0xb670d532, 0x5c74486c, 0x5742d0b8 + ); - /////// You shouldn't have to modify anything below this line except for - /////// the function getRandomBytes(). - // - // Note: in the following code the two dimensional arrays are indexed as - // you would probably expect, as array[row][column]. The state arrays - // are 2d arrays of the form state[4][Nb]. + var $Td3 = 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 $Td4 = array( + 0x52525252, 0x09090909, 0x6a6a6a6a, 0xd5d5d5d5, + 0x30303030, 0x36363636, 0xa5a5a5a5, 0x38383838, + 0xbfbfbfbf, 0x40404040, 0xa3a3a3a3, 0x9e9e9e9e, + 0x81818181, 0xf3f3f3f3, 0xd7d7d7d7, 0xfbfbfbfb, + 0x7c7c7c7c, 0xe3e3e3e3, 0x39393939, 0x82828282, + 0x9b9b9b9b, 0x2f2f2f2f, 0xffffffff, 0x87878787, + 0x34343434, 0x8e8e8e8e, 0x43434343, 0x44444444, + 0xc4c4c4c4, 0xdededede, 0xe9e9e9e9, 0xcbcbcbcb, + 0x54545454, 0x7b7b7b7b, 0x94949494, 0x32323232, + 0xa6a6a6a6, 0xc2c2c2c2, 0x23232323, 0x3d3d3d3d, + 0xeeeeeeee, 0x4c4c4c4c, 0x95959595, 0x0b0b0b0b, + 0x42424242, 0xfafafafa, 0xc3c3c3c3, 0x4e4e4e4e, + 0x08080808, 0x2e2e2e2e, 0xa1a1a1a1, 0x66666666, + 0x28282828, 0xd9d9d9d9, 0x24242424, 0xb2b2b2b2, + 0x76767676, 0x5b5b5b5b, 0xa2a2a2a2, 0x49494949, + 0x6d6d6d6d, 0x8b8b8b8b, 0xd1d1d1d1, 0x25252525, + 0x72727272, 0xf8f8f8f8, 0xf6f6f6f6, 0x64646464, + 0x86868686, 0x68686868, 0x98989898, 0x16161616, + 0xd4d4d4d4, 0xa4a4a4a4, 0x5c5c5c5c, 0xcccccccc, + 0x5d5d5d5d, 0x65656565, 0xb6b6b6b6, 0x92929292, + 0x6c6c6c6c, 0x70707070, 0x48484848, 0x50505050, + 0xfdfdfdfd, 0xedededed, 0xb9b9b9b9, 0xdadadada, + 0x5e5e5e5e, 0x15151515, 0x46464646, 0x57575757, + 0xa7a7a7a7, 0x8d8d8d8d, 0x9d9d9d9d, 0x84848484, + 0x90909090, 0xd8d8d8d8, 0xabababab, 0x00000000, + 0x8c8c8c8c, 0xbcbcbcbc, 0xd3d3d3d3, 0x0a0a0a0a, + 0xf7f7f7f7, 0xe4e4e4e4, 0x58585858, 0x05050505, + 0xb8b8b8b8, 0xb3b3b3b3, 0x45454545, 0x06060606, + 0xd0d0d0d0, 0x2c2c2c2c, 0x1e1e1e1e, 0x8f8f8f8f, + 0xcacacaca, 0x3f3f3f3f, 0x0f0f0f0f, 0x02020202, + 0xc1c1c1c1, 0xafafafaf, 0xbdbdbdbd, 0x03030303, + 0x01010101, 0x13131313, 0x8a8a8a8a, 0x6b6b6b6b, + 0x3a3a3a3a, 0x91919191, 0x11111111, 0x41414141, + 0x4f4f4f4f, 0x67676767, 0xdcdcdcdc, 0xeaeaeaea, + 0x97979797, 0xf2f2f2f2, 0xcfcfcfcf, 0xcececece, + 0xf0f0f0f0, 0xb4b4b4b4, 0xe6e6e6e6, 0x73737373, + 0x96969696, 0xacacacac, 0x74747474, 0x22222222, + 0xe7e7e7e7, 0xadadadad, 0x35353535, 0x85858585, + 0xe2e2e2e2, 0xf9f9f9f9, 0x37373737, 0xe8e8e8e8, + 0x1c1c1c1c, 0x75757575, 0xdfdfdfdf, 0x6e6e6e6e, + 0x47474747, 0xf1f1f1f1, 0x1a1a1a1a, 0x71717171, + 0x1d1d1d1d, 0x29292929, 0xc5c5c5c5, 0x89898989, + 0x6f6f6f6f, 0xb7b7b7b7, 0x62626262, 0x0e0e0e0e, + 0xaaaaaaaa, 0x18181818, 0xbebebebe, 0x1b1b1b1b, + 0xfcfcfcfc, 0x56565656, 0x3e3e3e3e, 0x4b4b4b4b, + 0xc6c6c6c6, 0xd2d2d2d2, 0x79797979, 0x20202020, + 0x9a9a9a9a, 0xdbdbdbdb, 0xc0c0c0c0, 0xfefefefe, + 0x78787878, 0xcdcdcdcd, 0x5a5a5a5a, 0xf4f4f4f4, + 0x1f1f1f1f, 0xdddddddd, 0xa8a8a8a8, 0x33333333, + 0x88888888, 0x07070707, 0xc7c7c7c7, 0x31313131, + 0xb1b1b1b1, 0x12121212, 0x10101010, 0x59595959, + 0x27272727, 0x80808080, 0xecececec, 0x5f5f5f5f, + 0x60606060, 0x51515151, 0x7f7f7f7f, 0xa9a9a9a9, + 0x19191919, 0xb5b5b5b5, 0x4a4a4a4a, 0x0d0d0d0d, + 0x2d2d2d2d, 0xe5e5e5e5, 0x7a7a7a7a, 0x9f9f9f9f, + 0x93939393, 0xc9c9c9c9, 0x9c9c9c9c, 0xefefefef, + 0xa0a0a0a0, 0xe0e0e0e0, 0x3b3b3b3b, 0x4d4d4d4d, + 0xaeaeaeae, 0x2a2a2a2a, 0xf5f5f5f5, 0xb0b0b0b0, + 0xc8c8c8c8, 0xebebebeb, 0xbbbbbbbb, 0x3c3c3c3c, + 0x83838383, 0x53535353, 0x99999999, 0x61616161, + 0x17171717, 0x2b2b2b2b, 0x04040404, 0x7e7e7e7e, + 0xbabababa, 0x77777777, 0xd6d6d6d6, 0x26262626, + 0xe1e1e1e1, 0x69696969, 0x14141414, 0x63636363, + 0x55555555, 0x21212121, 0x0c0c0c0c, 0x7d7d7d7d + ); + + var $rcon = array( + 0x01000000, 0x02000000, 0x04000000, 0x08000000, + 0x10000000, 0x20000000, 0x40000000, 0x80000000, + 0x1B000000, 0x36000000 + ); + + //////////////////// CORE FUNCTIONS /////////////////////////// + + // Encrypt a single block (bin) and return (bout) + function AES_encrypt($bin, $key) + { + $rk = 0; + + if ($bin == '' || $key == '') { + librijndael2::trace("AES_encrypt: bin/key undefined"); + return; + } + + // FIXME: BAD: we need rd_key + + // map byte array block to cipher state + // and add initial round key: + + $s0 = librijndael2::parseInt("0x" . substr($bin, 0 , 8)) ^ $key->rd_key[0]; + $s1 = librijndael2::parseInt("0x" . substr($bin, 8 , 8)) ^ $key->rd_key[1]; + $s2 = librijndael2::parseInt("0x" . substr($bin, 16, 8)) ^ $key->rd_key[2]; + $s3 = librijndael2::parseInt("0x" . substr($bin, 24, 8)) ^ $key->rd_key[3]; + + // Using Full Unroll (Bigger more a bit faster :) ) + // round 1: + $t0 = $this->Te0[($s0 >> 24) & 0xff] ^ $this->Te1[($s1 >> 16) & 0xff] ^ $this->Te2[($s2 >> 8) & 0xff] ^ $this->Te3[$s3 & 0xff] ^ $key->rd_key[4]; + $t1 = $this->Te0[($s1 >> 24) & 0xff] ^ $this->Te1[($s2 >> 16) & 0xff] ^ $this->Te2[($s3 >> 8) & 0xff] ^ $this->Te3[$s0 & 0xff] ^ $key->rd_key[5]; + $t2 = $this->Te0[($s2 >> 24) & 0xff] ^ $this->Te1[($s3 >> 16) & 0xff] ^ $this->Te2[($s0 >> 8) & 0xff] ^ $this->Te3[$s1 & 0xff] ^ $key->rd_key[6]; + $t3 = $this->Te0[($s3 >> 24) & 0xff] ^ $this->Te1[($s0 >> 16) & 0xff] ^ $this->Te2[($s1 >> 8) & 0xff] ^ $this->Te3[$s2 & 0xff] ^ $key->rd_key[7]; + $s0 = $this->Te0[($t0 >> 24) & 0xff] ^ $this->Te1[($t1 >> 16) & 0xff] ^ $this->Te2[($t2 >> 8) & 0xff] ^ $this->Te3[$t3 & 0xff] ^ $key->rd_key[8]; + $s1 = $this->Te0[($t1 >> 24) & 0xff] ^ $this->Te1[($t2 >> 16) & 0xff] ^ $this->Te2[($t3 >> 8) & 0xff] ^ $this->Te3[$t0 & 0xff] ^ $key->rd_key[9]; + $s2 = $this->Te0[($t2 >> 24) & 0xff] ^ $this->Te1[($t3 >> 16) & 0xff] ^ $this->Te2[($t0 >> 8) & 0xff] ^ $this->Te3[$t1 & 0xff] ^ $key->rd_key[10]; + $s3 = $this->Te0[($t3 >> 24) & 0xff] ^ $this->Te1[($t0 >> 16) & 0xff] ^ $this->Te2[($t1 >> 8) & 0xff] ^ $this->Te3[$t2 & 0xff] ^ $key->rd_key[11]; + $t0 = $this->Te0[($s0 >> 24) & 0xff] ^ $this->Te1[($s1 >> 16) & 0xff] ^ $this->Te2[($s2 >> 8) & 0xff] ^ $this->Te3[$s3 & 0xff] ^ $key->rd_key[12]; + $t1 = $this->Te0[($s1 >> 24) & 0xff] ^ $this->Te1[($s2 >> 16) & 0xff] ^ $this->Te2[($s3 >> 8) & 0xff] ^ $this->Te3[$s0 & 0xff] ^ $key->rd_key[13]; + $t2 = $this->Te0[($s2 >> 24) & 0xff] ^ $this->Te1[($s3 >> 16) & 0xff] ^ $this->Te2[($s0 >> 8) & 0xff] ^ $this->Te3[$s1 & 0xff] ^ $key->rd_key[14]; + $t3 = $this->Te0[($s3 >> 24) & 0xff] ^ $this->Te1[($s0 >> 16) & 0xff] ^ $this->Te2[($s1 >> 8) & 0xff] ^ $this->Te3[$s2 & 0xff] ^ $key->rd_key[15]; + $s0 = $this->Te0[($t0 >> 24) & 0xff] ^ $this->Te1[($t1 >> 16) & 0xff] ^ $this->Te2[($t2 >> 8) & 0xff] ^ $this->Te3[$t3 & 0xff] ^ $key->rd_key[16]; + $s1 = $this->Te0[($t1 >> 24) & 0xff] ^ $this->Te1[($t2 >> 16) & 0xff] ^ $this->Te2[($t3 >> 8) & 0xff] ^ $this->Te3[$t0 & 0xff] ^ $key->rd_key[17]; + $s2 = $this->Te0[($t2 >> 24) & 0xff] ^ $this->Te1[($t3 >> 16) & 0xff] ^ $this->Te2[($t0 >> 8) & 0xff] ^ $this->Te3[$t1 & 0xff] ^ $key->rd_key[18]; + $s3 = $this->Te0[($t3 >> 24) & 0xff] ^ $this->Te1[($t0 >> 16) & 0xff] ^ $this->Te2[($t1 >> 8) & 0xff] ^ $this->Te3[$t2 & 0xff] ^ $key->rd_key[19]; + $t0 = $this->Te0[($s0 >> 24) & 0xff] ^ $this->Te1[($s1 >> 16) & 0xff] ^ $this->Te2[($s2 >> 8) & 0xff] ^ $this->Te3[$s3 & 0xff] ^ $key->rd_key[20]; + $t1 = $this->Te0[($s1 >> 24) & 0xff] ^ $this->Te1[($s2 >> 16) & 0xff] ^ $this->Te2[($s3 >> 8) & 0xff] ^ $this->Te3[$s0 & 0xff] ^ $key->rd_key[21]; + $t2 = $this->Te0[($s2 >> 24) & 0xff] ^ $this->Te1[($s3 >> 16) & 0xff] ^ $this->Te2[($s0 >> 8) & 0xff] ^ $this->Te3[$s1 & 0xff] ^ $key->rd_key[22]; + $t3 = $this->Te0[($s3 >> 24) & 0xff] ^ $this->Te1[($s0 >> 16) & 0xff] ^ $this->Te2[($s1 >> 8) & 0xff] ^ $this->Te3[$s2 & 0xff] ^ $key->rd_key[23]; + $s0 = $this->Te0[($t0 >> 24) & 0xff] ^ $this->Te1[($t1 >> 16) & 0xff] ^ $this->Te2[($t2 >> 8) & 0xff] ^ $this->Te3[$t3 & 0xff] ^ $key->rd_key[24]; + $s1 = $this->Te0[($t1 >> 24) & 0xff] ^ $this->Te1[($t2 >> 16) & 0xff] ^ $this->Te2[($t3 >> 8) & 0xff] ^ $this->Te3[$t0 & 0xff] ^ $key->rd_key[25]; + $s2 = $this->Te0[($t2 >> 24) & 0xff] ^ $this->Te1[($t3 >> 16) & 0xff] ^ $this->Te2[($t0 >> 8) & 0xff] ^ $this->Te3[$t1 & 0xff] ^ $key->rd_key[26]; + $s3 = $this->Te0[($t3 >> 24) & 0xff] ^ $this->Te1[($t0 >> 16) & 0xff] ^ $this->Te2[($t1 >> 8) & 0xff] ^ $this->Te3[$t2 & 0xff] ^ $key->rd_key[27]; + $t0 = $this->Te0[($s0 >> 24) & 0xff] ^ $this->Te1[($s1 >> 16) & 0xff] ^ $this->Te2[($s2 >> 8) & 0xff] ^ $this->Te3[$s3 & 0xff] ^ $key->rd_key[28]; + $t1 = $this->Te0[($s1 >> 24) & 0xff] ^ $this->Te1[($s2 >> 16) & 0xff] ^ $this->Te2[($s3 >> 8) & 0xff] ^ $this->Te3[$s0 & 0xff] ^ $key->rd_key[29]; + $t2 = $this->Te0[($s2 >> 24) & 0xff] ^ $this->Te1[($s3 >> 16) & 0xff] ^ $this->Te2[($s0 >> 8) & 0xff] ^ $this->Te3[$s1 & 0xff] ^ $key->rd_key[30]; + $t3 = $this->Te0[($s3 >> 24) & 0xff] ^ $this->Te1[($s0 >> 16) & 0xff] ^ $this->Te2[($s1 >> 8) & 0xff] ^ $this->Te3[$s2 & 0xff] ^ $key->rd_key[31]; + $s0 = $this->Te0[($t0 >> 24) & 0xff] ^ $this->Te1[($t1 >> 16) & 0xff] ^ $this->Te2[($t2 >> 8) & 0xff] ^ $this->Te3[$t3 & 0xff] ^ $key->rd_key[32]; + $s1 = $this->Te0[($t1 >> 24) & 0xff] ^ $this->Te1[($t2 >> 16) & 0xff] ^ $this->Te2[($t3 >> 8) & 0xff] ^ $this->Te3[$t0 & 0xff] ^ $key->rd_key[33]; + $s2 = $this->Te0[($t2 >> 24) & 0xff] ^ $this->Te1[($t3 >> 16) & 0xff] ^ $this->Te2[($t0 >> 8) & 0xff] ^ $this->Te3[$t1 & 0xff] ^ $key->rd_key[34]; + $s3 = $this->Te0[($t3 >> 24) & 0xff] ^ $this->Te1[($t0 >> 16) & 0xff] ^ $this->Te2[($t1 >> 8) & 0xff] ^ $this->Te3[$t2 & 0xff] ^ $key->rd_key[35]; + $t0 = $this->Te0[($s0 >> 24) & 0xff] ^ $this->Te1[($s1 >> 16) & 0xff] ^ $this->Te2[($s2 >> 8) & 0xff] ^ $this->Te3[$s3 & 0xff] ^ $key->rd_key[36]; + $t1 = $this->Te0[($s1 >> 24) & 0xff] ^ $this->Te1[($s2 >> 16) & 0xff] ^ $this->Te2[($s3 >> 8) & 0xff] ^ $this->Te3[$s0 & 0xff] ^ $key->rd_key[37]; + $t2 = $this->Te0[($s2 >> 24) & 0xff] ^ $this->Te1[($s3 >> 16) & 0xff] ^ $this->Te2[($s0 >> 8) & 0xff] ^ $this->Te3[$s1 & 0xff] ^ $key->rd_key[38]; + $t3 = $this->Te0[($s3 >> 24) & 0xff] ^ $this->Te1[($s0 >> 16) & 0xff] ^ $this->Te2[($s1 >> 8) & 0xff] ^ $this->Te3[$s2 & 0xff] ^ $key->rd_key[39]; + + // FIXME: BAD: need $key->rounds + + if ($key->rounds > 10) { + // round 10: + $s0 = $this->Te0[($t0 >> 24) & 0xff] ^ $this->Te1[($t1 >> 16) & 0xff] ^ $this->Te2[($t2 >> 8) & 0xff] ^ $this->Te3[$t3 & 0xff] ^ $key->rd_key[40]; + $s1 = $this->Te0[($t1 >> 24) & 0xff] ^ $this->Te1[($t2 >> 16) & 0xff] ^ $this->Te2[($t3 >> 8) & 0xff] ^ $this->Te3[$t0 & 0xff] ^ $key->rd_key[41]; + $s2 = $this->Te0[($t2 >> 24) & 0xff] ^ $this->Te1[($t3 >> 16) & 0xff] ^ $this->Te2[($t0 >> 8) & 0xff] ^ $this->Te3[$t1 & 0xff] ^ $key->rd_key[42]; + $s3 = $this->Te0[($t3 >> 24) & 0xff] ^ $this->Te1[($t0 >> 16) & 0xff] ^ $this->Te2[($t1 >> 8) & 0xff] ^ $this->Te3[$t2 & 0xff] ^ $key->rd_key[43]; + $t0 = $this->Te0[($s0 >> 24) & 0xff] ^ $this->Te1[($s1 >> 16) & 0xff] ^ $this->Te2[($s2 >> 8) & 0xff] ^ $this->Te3[$s3 & 0xff] ^ $key->rd_key[44]; + $t1 = $this->Te0[($s1 >> 24) & 0xff] ^ $this->Te1[($s2 >> 16) & 0xff] ^ $this->Te2[($s3 >> 8) & 0xff] ^ $this->Te3[$s0 & 0xff] ^ $key->rd_key[45]; + $t2 = $this->Te0[($s2 >> 24) & 0xff] ^ $this->Te1[($s3 >> 16) & 0xff] ^ $this->Te2[($s0 >> 8) & 0xff] ^ $this->Te3[$s1 & 0xff] ^ $key->rd_key[46]; + $t3 = $this->Te0[($s3 >> 24) & 0xff] ^ $this->Te1[($s0 >> 16) & 0xff] ^ $this->Te2[($s1 >> 8) & 0xff] ^ $this->Te3[$s2 & 0xff] ^ $key->rd_key[47]; + + if ($key->rounds > 12) { + $s0 = $this->Te0[($t0 >> 24) & 0xff] ^ $this->Te1[($t1 >> 16) & 0xff] ^ $this->Te2[($t2 >> 8) & 0xff] ^ $this->Te3[$t3 & 0xff] ^ $key->rd_key[48]; + $s1 = $this->Te0[($t1 >> 24) & 0xff] ^ $this->Te1[($t2 >> 16) & 0xff] ^ $this->Te2[($t3 >> 8) & 0xff] ^ $this->Te3[$t0 & 0xff] ^ $key->rd_key[49]; + $s2 = $this->Te0[($t2 >> 24) & 0xff] ^ $this->Te1[($t3 >> 16) & 0xff] ^ $this->Te2[($t0 >> 8) & 0xff] ^ $this->Te3[$t1 & 0xff] ^ $key->rd_key[50]; + $s3 = $this->Te0[($t3 >> 24) & 0xff] ^ $this->Te1[($t0 >> 16) & 0xff] ^ $this->Te2[($t1 >> 8) & 0xff] ^ $this->Te3[$t2 & 0xff] ^ $key->rd_key[51]; + $t0 = $this->Te0[($s0 >> 24) & 0xff] ^ $this->Te1[($s1 >> 16) & 0xff] ^ $this->Te2[($s2 >> 8) & 0xff] ^ $this->Te3[$s3 & 0xff] ^ $key->rd_key[52]; + $t1 = $this->Te0[($s1 >> 24) & 0xff] ^ $this->Te1[($s2 >> 16) & 0xff] ^ $this->Te2[($s3 >> 8) & 0xff] ^ $this->Te3[$s0 & 0xff] ^ $key->rd_key[53]; + $t2 = $this->Te0[($s2 >> 24) & 0xff] ^ $this->Te1[($s3 >> 16) & 0xff] ^ $this->Te2[($s0 >> 8) & 0xff] ^ $this->Te3[$s1 & 0xff] ^ $key->rd_key[54]; + $t3 = $this->Te0[($s3 >> 24) & 0xff] ^ $this->Te1[($s0 >> 16) & 0xff] ^ $this->Te2[($s1 >> 8) & 0xff] ^ $this->Te3[$s2 & 0xff] ^ $key->rd_key[55]; + } + } + + // This is correct + $rk = $key->rounds << 2; - // The number of rounds for the cipher, indexed by [Nk][Nb] - var $roundsArray = Array(0,0,0,0,Array(0,0,0,0,10,0, 12,0, 14),0, - Array(0,0,0,0,12,0, 12,0, 14),0, - Array(0,0,0,0,14,0, 14,0, 14) ); + /* + // No Full Unroll + */ - // The number of bytes to shift by in shiftRow, indexed by [Nb][row] - var $shiftOffsets = Array(0,0,0,0,Array(0,1, 2, 3),0,Array(0,1, 2, 3),0,Array(0,1, 3, 4) ); + // Apply last round and + // map cipher state to byte array block: + + $s0 = ($this->Te4[($t0 >> 24) & 0xff] & 0xff000000) ^ + ($this->Te4[($t1 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Te4[($t2 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Te4[($t3 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk]; - // The round constants used in subkey expansion - var $Rcon = Array( - 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 ); + $out = librijndael2::ord2hex(($s0 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s0 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s0 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s0 & 0xff); + + $s1 = ($this->Te4[($t1 >> 24) & 0xff] & 0xff000000) ^ + ($this->Te4[($t2 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Te4[($t3 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Te4[($t0 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk+1]; + + $out .= librijndael2::ord2hex(($s1 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s1 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s1 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s1 & 0xff); + + $s2 = ($this->Te4[($t2 >> 24) & 0xff] & 0xff000000) ^ + ($this->Te4[($t3 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Te4[($t0 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Te4[($t1 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk+2]; + + $out .= librijndael2::ord2hex(($s2 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s2 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s2 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s2 & 0xff); + + $s3 = ($this->Te4[($t3 >> 24) & 0xff] & 0xff000000) ^ + ($this->Te4[($t0 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Te4[($t1 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Te4[($t2 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk+3]; + + $out .= librijndael2::ord2hex(($s3 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s3 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s3 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s3 & 0xff); - // Precomputed lookup table for the SBox - var $SBox = Array( - 99, 124, 119, 123, 242, 107, 111, 197, 48, 1, 103, 43, 254, 215, 171, - 118, 202, 130, 201, 125, 250, 89, 71, 240, 173, 212, 162, 175, 156, 164, - 114, 192, 183, 253, 147, 38, 54, 63, 247, 204, 52, 165, 229, 241, 113, - 216, 49, 21, 4, 199, 35, 195, 24, 150, 5, 154, 7, 18, 128, 226, - 235, 39, 178, 117, 9, 131, 44, 26, 27, 110, 90, 160, 82, 59, 214, - 179, 41, 227, 47, 132, 83, 209, 0, 237, 32, 252, 177, 91, 106, 203, - 190, 57, 74, 76, 88, 207, 208, 239, 170, 251, 67, 77, 51, 133, 69, - 249, 2, 127, 80, 60, 159, 168, 81, 163, 64, 143, 146, 157, 56, 245, - 188, 182, 218, 33, 16, 255, 243, 210, 205, 12, 19, 236, 95, 151, 68, - 23, 196, 167, 126, 61, 100, 93, 25, 115, 96, 129, 79, 220, 34, 42, - 144, 136, 70, 238, 184, 20, 222, 94, 11, 219, 224, 50, 58, 10, 73, - 6, 36, 92, 194, 211, 172, 98, 145, 149, 228, 121, 231, 200, 55, 109, - 141, 213, 78, 169, 108, 86, 244, 234, 101, 122, 174, 8, 186, 120, 37, - 46, 28, 166, 180, 198, 232, 221, 116, 31, 75, 189, 139, 138, 112, 62, - 181, 102, 72, 3, 246, 14, 97, 53, 87, 185, 134, 193, 29, 158, 225, - 248, 152, 17, 105, 217, 142, 148, 155, 30, 135, 233, 206, 85, 40, 223, - 140, 161, 137, 13, 191, 230, 66, 104, 65, 153, 45, 15, 176, 84, 187, - 22 ); + return $out; + } + + + // Decrypt a single block (bin) and return (bout) + function AES_decrypt($bin, $key) + { + $rk = 0; + // var r; // No Full Unroll + + if ($bin == '' || $key == '') + { + librijndael2::trace("AES_decrypt: bin/key undefined"); + return; + } + + // FIXME: BAD: need $key->rd_key + + // map byte array block to cipher state + // and add initial round key: + $s0 = librijndael2::parseInt("0x" . substr($bin, 0 , 8)) ^ $key->rd_key[0]; + $s1 = librijndael2::parseInt("0x" . substr($bin, 8 , 8)) ^ $key->rd_key[1]; + $s2 = librijndael2::parseInt("0x" . substr($bin, 16, 8)) ^ $key->rd_key[2]; + $s3 = librijndael2::parseInt("0x" . substr($bin, 24, 8)) ^ $key->rd_key[3]; + + // Using Full Unroll (Bigger more a bit faster :) ) + $t0 = $this->Td0[($s0 >> 24) & 0xff] ^ $this->Td1[($s3 >> 16) & 0xff] ^ $this->Td2[($s2 >> 8) & 0xff] ^ $this->Td3[$s1 & 0xff] ^ $key->rd_key[4]; // ROUND 1 + $t1 = $this->Td0[($s1 >> 24) & 0xff] ^ $this->Td1[($s0 >> 16) & 0xff] ^ $this->Td2[($s3 >> 8) & 0xff] ^ $this->Td3[$s2 & 0xff] ^ $key->rd_key[5]; + $t2 = $this->Td0[($s2 >> 24) & 0xff] ^ $this->Td1[($s1 >> 16) & 0xff] ^ $this->Td2[($s0 >> 8) & 0xff] ^ $this->Td3[$s3 & 0xff] ^ $key->rd_key[6]; + $t3 = $this->Td0[($s3 >> 24) & 0xff] ^ $this->Td1[($s2 >> 16) & 0xff] ^ $this->Td2[($s1 >> 8) & 0xff] ^ $this->Td3[$s0 & 0xff] ^ $key->rd_key[7]; + $s0 = $this->Td0[($t0 >> 24) & 0xff] ^ $this->Td1[($t3 >> 16) & 0xff] ^ $this->Td2[($t2 >> 8) & 0xff] ^ $this->Td3[$t1 & 0xff] ^ $key->rd_key[8]; // ROUND 2 + $s1 = $this->Td0[($t1 >> 24) & 0xff] ^ $this->Td1[($t0 >> 16) & 0xff] ^ $this->Td2[($t3 >> 8) & 0xff] ^ $this->Td3[$t2 & 0xff] ^ $key->rd_key[9]; + $s2 = $this->Td0[($t2 >> 24) & 0xff] ^ $this->Td1[($t1 >> 16) & 0xff] ^ $this->Td2[($t0 >> 8) & 0xff] ^ $this->Td3[$t3 & 0xff] ^ $key->rd_key[10]; + $s3 = $this->Td0[($t3 >> 24) & 0xff] ^ $this->Td1[($t2 >> 16) & 0xff] ^ $this->Td2[($t1 >> 8) & 0xff] ^ $this->Td3[$t0 & 0xff] ^ $key->rd_key[11]; + $t0 = $this->Td0[($s0 >> 24) & 0xff] ^ $this->Td1[($s3 >> 16) & 0xff] ^ $this->Td2[($s2 >> 8) & 0xff] ^ $this->Td3[$s1 & 0xff] ^ $key->rd_key[12]; // ROUND 3 + $t1 = $this->Td0[($s1 >> 24) & 0xff] ^ $this->Td1[($s0 >> 16) & 0xff] ^ $this->Td2[($s3 >> 8) & 0xff] ^ $this->Td3[$s2 & 0xff] ^ $key->rd_key[13]; + $t2 = $this->Td0[($s2 >> 24) & 0xff] ^ $this->Td1[($s1 >> 16) & 0xff] ^ $this->Td2[($s0 >> 8) & 0xff] ^ $this->Td3[$s3 & 0xff] ^ $key->rd_key[14]; + $t3 = $this->Td0[($s3 >> 24) & 0xff] ^ $this->Td1[($s2 >> 16) & 0xff] ^ $this->Td2[($s1 >> 8) & 0xff] ^ $this->Td3[$s0 & 0xff] ^ $key->rd_key[15]; + $s0 = $this->Td0[($t0 >> 24) & 0xff] ^ $this->Td1[($t3 >> 16) & 0xff] ^ $this->Td2[($t2 >> 8) & 0xff] ^ $this->Td3[$t1 & 0xff] ^ $key->rd_key[16]; // ROUND 4 + $s1 = $this->Td0[($t1 >> 24) & 0xff] ^ $this->Td1[($t0 >> 16) & 0xff] ^ $this->Td2[($t3 >> 8) & 0xff] ^ $this->Td3[$t2 & 0xff] ^ $key->rd_key[17]; + $s2 = $this->Td0[($t2 >> 24) & 0xff] ^ $this->Td1[($t1 >> 16) & 0xff] ^ $this->Td2[($t0 >> 8) & 0xff] ^ $this->Td3[$t3 & 0xff] ^ $key->rd_key[18]; + $s3 = $this->Td0[($t3 >> 24) & 0xff] ^ $this->Td1[($t2 >> 16) & 0xff] ^ $this->Td2[($t1 >> 8) & 0xff] ^ $this->Td3[$t0 & 0xff] ^ $key->rd_key[19]; + $t0 = $this->Td0[($s0 >> 24) & 0xff] ^ $this->Td1[($s3 >> 16) & 0xff] ^ $this->Td2[($s2 >> 8) & 0xff] ^ $this->Td3[$s1 & 0xff] ^ $key->rd_key[20]; // ROUND 5 + $t1 = $this->Td0[($s1 >> 24) & 0xff] ^ $this->Td1[($s0 >> 16) & 0xff] ^ $this->Td2[($s3 >> 8) & 0xff] ^ $this->Td3[$s2 & 0xff] ^ $key->rd_key[21]; + $t2 = $this->Td0[($s2 >> 24) & 0xff] ^ $this->Td1[($s1 >> 16) & 0xff] ^ $this->Td2[($s0 >> 8) & 0xff] ^ $this->Td3[$s3 & 0xff] ^ $key->rd_key[22]; + $t3 = $this->Td0[($s3 >> 24) & 0xff] ^ $this->Td1[($s2 >> 16) & 0xff] ^ $this->Td2[($s1 >> 8) & 0xff] ^ $this->Td3[$s0 & 0xff] ^ $key->rd_key[23]; + $s0 = $this->Td0[($t0 >> 24) & 0xff] ^ $this->Td1[($t3 >> 16) & 0xff] ^ $this->Td2[($t2 >> 8) & 0xff] ^ $this->Td3[$t1 & 0xff] ^ $key->rd_key[24]; // ROUND 6 + $s1 = $this->Td0[($t1 >> 24) & 0xff] ^ $this->Td1[($t0 >> 16) & 0xff] ^ $this->Td2[($t3 >> 8) & 0xff] ^ $this->Td3[$t2 & 0xff] ^ $key->rd_key[25]; + $s2 = $this->Td0[($t2 >> 24) & 0xff] ^ $this->Td1[($t1 >> 16) & 0xff] ^ $this->Td2[($t0 >> 8) & 0xff] ^ $this->Td3[$t3 & 0xff] ^ $key->rd_key[26]; + $s3 = $this->Td0[($t3 >> 24) & 0xff] ^ $this->Td1[($t2 >> 16) & 0xff] ^ $this->Td2[($t1 >> 8) & 0xff] ^ $this->Td3[$t0 & 0xff] ^ $key->rd_key[27]; + $t0 = $this->Td0[($s0 >> 24) & 0xff] ^ $this->Td1[($s3 >> 16) & 0xff] ^ $this->Td2[($s2 >> 8) & 0xff] ^ $this->Td3[$s1 & 0xff] ^ $key->rd_key[28]; // ROUND 7 + $t1 = $this->Td0[($s1 >> 24) & 0xff] ^ $this->Td1[($s0 >> 16) & 0xff] ^ $this->Td2[($s3 >> 8) & 0xff] ^ $this->Td3[$s2 & 0xff] ^ $key->rd_key[29]; + $t2 = $this->Td0[($s2 >> 24) & 0xff] ^ $this->Td1[($s1 >> 16) & 0xff] ^ $this->Td2[($s0 >> 8) & 0xff] ^ $this->Td3[$s3 & 0xff] ^ $key->rd_key[30]; + $t3 = $this->Td0[($s3 >> 24) & 0xff] ^ $this->Td1[($s2 >> 16) & 0xff] ^ $this->Td2[($s1 >> 8) & 0xff] ^ $this->Td3[$s0 & 0xff] ^ $key->rd_key[31]; + $s0 = $this->Td0[($t0 >> 24) & 0xff] ^ $this->Td1[($t3 >> 16) & 0xff] ^ $this->Td2[($t2 >> 8) & 0xff] ^ $this->Td3[$t1 & 0xff] ^ $key->rd_key[32]; // ROUND 8 + $s1 = $this->Td0[($t1 >> 24) & 0xff] ^ $this->Td1[($t0 >> 16) & 0xff] ^ $this->Td2[($t3 >> 8) & 0xff] ^ $this->Td3[$t2 & 0xff] ^ $key->rd_key[33]; + $s2 = $this->Td0[($t2 >> 24) & 0xff] ^ $this->Td1[($t1 >> 16) & 0xff] ^ $this->Td2[($t0 >> 8) & 0xff] ^ $this->Td3[$t3 & 0xff] ^ $key->rd_key[34]; + $s3 = $this->Td0[($t3 >> 24) & 0xff] ^ $this->Td1[($t2 >> 16) & 0xff] ^ $this->Td2[($t1 >> 8) & 0xff] ^ $this->Td3[$t0 & 0xff] ^ $key->rd_key[35]; + $t0 = $this->Td0[($s0 >> 24) & 0xff] ^ $this->Td1[($s3 >> 16) & 0xff] ^ $this->Td2[($s2 >> 8) & 0xff] ^ $this->Td3[$s1 & 0xff] ^ $key->rd_key[36]; // ROUND 9 + $t1 = $this->Td0[($s1 >> 24) & 0xff] ^ $this->Td1[($s0 >> 16) & 0xff] ^ $this->Td2[($s3 >> 8) & 0xff] ^ $this->Td3[$s2 & 0xff] ^ $key->rd_key[37]; + $t2 = $this->Td0[($s2 >> 24) & 0xff] ^ $this->Td1[($s1 >> 16) & 0xff] ^ $this->Td2[($s0 >> 8) & 0xff] ^ $this->Td3[$s3 & 0xff] ^ $key->rd_key[38]; + $t3 = $this->Td0[($s3 >> 24) & 0xff] ^ $this->Td1[($s2 >> 16) & 0xff] ^ $this->Td2[($s1 >> 8) & 0xff] ^ $this->Td3[$s0 & 0xff] ^ $key->rd_key[39]; + + // FIXME: BAD: need $key->rounds + + if ($key->rounds > 10) + { + $s0 = $this->Td0[($t0 >> 24) & 0xff] ^ $this->Td1[($t3 >> 16) & 0xff] ^ $this->Td2[($t2 >> 8) & 0xff] ^ $this->Td3[$t1 & 0xff] ^ $key->rd_key[40]; // ROUND 10 + $s1 = $this->Td0[($t1 >> 24) & 0xff] ^ $this->Td1[($t0 >> 16) & 0xff] ^ $this->Td2[($t3 >> 8) & 0xff] ^ $this->Td3[$t2 & 0xff] ^ $key->rd_key[41]; + $s2 = $this->Td0[($t2 >> 24) & 0xff] ^ $this->Td1[($t1 >> 16) & 0xff] ^ $this->Td2[($t0 >> 8) & 0xff] ^ $this->Td3[$t3 & 0xff] ^ $key->rd_key[42]; + $s3 = $this->Td0[($t3 >> 24) & 0xff] ^ $this->Td1[($t2 >> 16) & 0xff] ^ $this->Td2[($t1 >> 8) & 0xff] ^ $this->Td3[$t0 & 0xff] ^ $key->rd_key[43]; + $t0 = $this->Td0[($s0 >> 24) & 0xff] ^ $this->Td1[($s3 >> 16) & 0xff] ^ $this->Td2[($s2 >> 8) & 0xff] ^ $this->Td3[$s1 & 0xff] ^ $key->rd_key[44]; // ROUND 11 + $t1 = $this->Td0[($s1 >> 24) & 0xff] ^ $this->Td1[($s0 >> 16) & 0xff] ^ $this->Td2[($s3 >> 8) & 0xff] ^ $this->Td3[$s2 & 0xff] ^ $key->rd_key[45]; + $t2 = $this->Td0[($s2 >> 24) & 0xff] ^ $this->Td1[($s1 >> 16) & 0xff] ^ $this->Td2[($s0 >> 8) & 0xff] ^ $this->Td3[$s3 & 0xff] ^ $key->rd_key[46]; + $t3 = $this->Td0[($s3 >> 24) & 0xff] ^ $this->Td1[($s2 >> 16) & 0xff] ^ $this->Td2[($s1 >> 8) & 0xff] ^ $this->Td3[$s0 & 0xff] ^ $key->rd_key[47]; + + if ($key->rounds > 12) + { + $s0 = $this->Td0[($t0 >> 24) & 0xff] ^ $this->Td1[($t3 >> 16) & 0xff] ^ $this->Td2[($t2 >> 8) & 0xff] ^ $this->Td3[$t1 & 0xff] ^ $key->rd_key[48]; // ROUND 12 + $s1 = $this->Td0[($t1 >> 24) & 0xff] ^ $this->Td1[($t0 >> 16) & 0xff] ^ $this->Td2[($t3 >> 8) & 0xff] ^ $this->Td3[$t2 & 0xff] ^ $key->rd_key[49]; + $s2 = $this->Td0[($t2 >> 24) & 0xff] ^ $this->Td1[($t1 >> 16) & 0xff] ^ $this->Td2[($t0 >> 8) & 0xff] ^ $this->Td3[$t3 & 0xff] ^ $key->rd_key[50]; + $s3 = $this->Td0[($t3 >> 24) & 0xff] ^ $this->Td1[($t2 >> 16) & 0xff] ^ $this->Td2[($t1 >> 8) & 0xff] ^ $this->Td3[$t0 & 0xff] ^ $key->rd_key[51]; + $t0 = $this->Td0[($s0 >> 24) & 0xff] ^ $this->Td1[($s3 >> 16) & 0xff] ^ $this->Td2[($s2 >> 8) & 0xff] ^ $this->Td3[$s1 & 0xff] ^ $key->rd_key[52]; // ROUND 13 + $t1 = $this->Td0[($s1 >> 24) & 0xff] ^ $this->Td1[($s0 >> 16) & 0xff] ^ $this->Td2[($s3 >> 8) & 0xff] ^ $this->Td3[$s2 & 0xff] ^ $key->rd_key[53]; + $t2 = $this->Td0[($s2 >> 24) & 0xff] ^ $this->Td1[($s1 >> 16) & 0xff] ^ $this->Td2[($s0 >> 8) & 0xff] ^ $this->Td3[$s3 & 0xff] ^ $key->rd_key[54]; + $t3 = $this->Td0[($s3 >> 24) & 0xff] ^ $this->Td1[($s2 >> 16) & 0xff] ^ $this->Td2[($s1 >> 8) & 0xff] ^ $this->Td3[$s0 & 0xff] ^ $key->rd_key[55]; + } + } + + // This is correct + $rk = $key->rounds << 2; + + /* + // No Full Unroll + */ + + // Apply last round and + // map cipher state to byte array block: + + $s0 = ($this->Td4[($t0 >> 24) & 0xff] & 0xff000000) ^ + ($this->Td4[($t3 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Td4[($t2 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Td4[($t1 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk]; + + $out = librijndael2::ord2hex(($s0 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s0 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s0 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s0 & 0xff); + + $s1 = ($this->Td4[($t1 >> 24) & 0xff] & 0xff000000) ^ + ($this->Td4[($t0 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Td4[($t3 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Td4[($t2 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk+1]; + + $out .= librijndael2::ord2hex(($s1 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s1 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s1 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s1 & 0xff); + + $s2 = ($this->Td4[($t2 >> 24) & 0xff] & 0xff000000) ^ + ($this->Td4[($t1 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Td4[($t0 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Td4[($t3 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk+2]; + + $out .= librijndael2::ord2hex(($s2 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s2 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s2 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s2 & 0xff); + + $s3 = ($this->Td4[($t3 >> 24) & 0xff] & 0xff000000) ^ + ($this->Td4[($t2 >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Td4[($t1 >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Td4[($t0 ) & 0xff] & 0x000000ff) ^ + $key->rd_key[$rk+3]; + + $out .= librijndael2::ord2hex(($s3 >> 24) & 0xff); + $out .= librijndael2::ord2hex(($s3 >> 16) & 0xff); + $out .= librijndael2::ord2hex(($s3 >> 8) & 0xff); + $out .= librijndael2::ord2hex($s3 & 0xff); + + return $out; + } + + + /////////////////////////////// MODES ////////////////////////////////// + + /* ECB MODE (AES_ecb_encrypt) + * bin: 128 bit block (32 hex digits) + * key: AES_KEY object (use AES_set_encrypt_key or AES_set_decrypt_key) + * enc: "AES_ENCRYPT" or "AES_DECRYPT" + * Return value: 128 bit block (32 hex digits) + */ + + function AES_ecb_encrypt($bin, $key, $enc) + { + + if ($bin == '' || $key == '') + { + librijndael2::trace("AES_ecb_encrypt: bin/key undefined"); + return; + } + + if ($enc !== "AES_ENCRYPT" && $enc !== "AES_DECRYPT") + { + librijndael2::trace("AES_ecb_encrypt: enc isn't AES_ENCRYPT/AES_DECRYPT"); + return; + } + + if ($enc == "AES_ENCRYPT") + $bout = $this->AES_encrypt($bin, $key); + else + $bout = $this->AES_decrypt($bin, $key); - // Precomputed lookup table for the inverse SBox - var $SBoxInverse = Array( - 82, 9, 106, 213, 48, 54, 165, 56, 191, 64, 163, 158, 129, 243, 215, - 251, 124, 227, 57, 130, 155, 47, 255, 135, 52, 142, 67, 68, 196, 222, - 233, 203, 84, 123, 148, 50, 166, 194, 35, 61, 238, 76, 149, 11, 66, - 250, 195, 78, 8, 46, 161, 102, 40, 217, 36, 178, 118, 91, 162, 73, - 109, 139, 209, 37, 114, 248, 246, 100, 134, 104, 152, 22, 212, 164, 92, - 204, 93, 101, 182, 146, 108, 112, 72, 80, 253, 237, 185, 218, 94, 21, - 70, 87, 167, 141, 157, 132, 144, 216, 171, 0, 140, 188, 211, 10, 247, - 228, 88, 5, 184, 179, 69, 6, 208, 44, 30, 143, 202, 63, 15, 2, - 193, 175, 189, 3, 1, 19, 138, 107, 58, 145, 17, 65, 79, 103, 220, - 234, 151, 242, 207, 206, 240, 180, 230, 115, 150, 172, 116, 34, 231, 173, - 53, 133, 226, 249, 55, 232, 28, 117, 223, 110, 71, 241, 26, 113, 29, - 41, 197, 137, 111, 183, 98, 14, 170, 24, 190, 27, 252, 86, 62, 75, - 198, 210, 121, 32, 154, 219, 192, 254, 120, 205, 90, 244, 31, 221, 168, - 51, 136, 7, 199, 49, 177, 18, 16, 89, 39, 128, 236, 95, 96, 81, - 127, 169, 25, 181, 74, 13, 45, 229, 122, 159, 147, 201, 156, 239, 160, - 224, 59, 77, 174, 42, 245, 176, 200, 235, 187, 60, 131, 83, 153, 97, - 23, 43, 4, 126, 186, 119, 214, 38, 225, 105, 20, 99, 85, 33, 12, - 125 ); + return $bout; + } + + + /* CBC MODE (AES_cbc_encrypt) + * bin: 128 bit block (32 hex digits) + * key: AES_KEY object (use AES_set_encrypt_key or AES_set_decrypt_key) + * ivec: Initialization Vector (32 hex digits) + * enc: "AES_ENCRYPT" or "AES_DECRYPT" + * Return value: 128 bit block (32 hex digits) + */ + + function AES_cbc_encrypt($bin, $key, $ivec, $enc) + { + + // if ($bin == '' || $key == '' || $ivec == '') + // { + // librijndael2::trace("AES_cbc_encrypt: bin/key/ivec undefined."); + // return; + // } + + $len = strlen($bin); + + if ($len % 32 != 0) + { + librijndael2::trace("AES_cbc_encrypt: data isn't multiple of 32 (32 hex = 128bits)."); + return; + } + + if ($enc !== "AES_ENCRYPT" && $enc !== "AES_DECRYPT") + { + librijndael2::trace("AES_ecb_encrypt: enc isn't AES_ENCRYPT/AES_DECRYPT"); + return; + } + + $tin = $bin; + $tmp = ''; + $bout = ''; + + if ($enc == "AES_ENCRYPT") + while ($len > 0) + { + $tmp = ""; + for($n=0; $n < 32; $n += 2) + { + $aux = librijndael2::parseInt("0x" . substr($tin, $n , 2)) ^ librijndael2::parseInt("0x" . substr($ivec, $n, 2)); + $tmp .= librijndael2::ord2hex($aux); + } + + $tout = $this->AES_encrypt($tmp, $key); + $ivec = $tout; + $len -= 32; + $tin = substr($tin, 32); + $bout .= $tout; + } + else + while ($len > 0) { + $tmp = $this->AES_decrypt($tin, $key); + $tout = ""; + for($n=0; $n < 32; $n+=2) + { + $aux = librijndael2::parseInt("0x" . substr($tmp, $n , 2)) ^ librijndael2::parseInt("0x" . substr($ivec, $n, 2)); + $tout .= librijndael2::ord2hex($aux); + } + + $ivec = $tin; + $len -= 32; + $tin = substr($tin, 32); + $bout .= $tout; + } + + return $bout; + } + +} + +class Crypt_Rijndael_Key extends Crypt_Rijndael +{ + var $rounds = 12; + var $rd_key = array(); + var $key = ''; + var $bits = 0; + var $key_state = 'none'; + + function __construct($key) + { + $this->key = $key; + $this->bits = ( strlen($key) * 4 ); + } - function __construct($ks = 128, $bs = 128, $debug = false) + // Expand the cipher key into the encryption key schedule. + function set_encrypt() { - $this->keySizeInBits = $ks; - $this->blockSizeInBits = $bs; + $i = 0; + $rk = 0; + + if ( $this->key_state == 'encrypt' ) + return 0; - // Use the Mcrypt library? This speeds things up dramatically. - if(defined('MCRYPT_RIJNDAEL_' . $ks) && defined('MCRYPT_ACCEL')) + $this->key_state = 'encrypt'; + + $userkey =& $this->key; + $bits =& $this->bits; + + if ($bits != 128 && $bits != 192 && $bits != 256) { - eval('$mcb = MCRYPT_RIJNDAEL_' . $ks.';'); - $bks = mcrypt_module_get_algo_block_size($mcb); - $bks = $bks * 8; - if ( $bks != $bs ) - { - $mcb = false; - echo (string)$bks; - } + librijndael2::trace("AES_set_encrypt_key: key size isn't 128/192/256"); + return -2; + } + + if ($bits==128) + $this->rounds = 10; + else if ($bits==192) + $this->rounds = 12; + else + $this->rounds = 14; + + + $this->rd_key = array(); + $this->rd_key[0] = librijndael2::parseInt("0x" . substr($userkey, 0 , 8)); + $this->rd_key[1] = librijndael2::parseInt("0x" . substr($userkey, 8 , 8)); + $this->rd_key[2] = librijndael2::parseInt("0x" . substr($userkey, 16, 8)); + $this->rd_key[3] = librijndael2::parseInt("0x" . substr($userkey, 24, 8)); + + if ($bits == 128) { + for (;;) { + $temp = $this->rd_key[3+$rk]; + // (temp >> 24) & 0xff was difficult bug to tracking... + $this->rd_key[4+$rk] = $this->rd_key[$rk] ^ + ($this->Te4[($temp >> 16) & 0xff] & 0xff000000) ^ + ($this->Te4[($temp >> 8) & 0xff] & 0x00ff0000) ^ + ($this->Te4[ $temp & 0xff] & 0x0000ff00) ^ + ($this->Te4[($temp >> 24) & 0xff] & 0x000000ff) ^ + $this->rcon[$i]; + + $this->rd_key[5+$rk] = $this->rd_key[1+$rk] ^ $this->rd_key[4+$rk]; + $this->rd_key[6+$rk] = $this->rd_key[2+$rk] ^ $this->rd_key[5+$rk]; + $this->rd_key[7+$rk] = $this->rd_key[3+$rk] ^ $this->rd_key[6+$rk]; + if (++$i == 10) return 0; + $rk += 4; + } + } + + $this->rd_key[4] = librijndael2::parseInt("0x" . @substr($userkey, 32, 8)); + $this->rd_key[5] = librijndael2::parseInt("0x" . @substr($userkey, 40, 8)); + + if ($bits == 192) { + for (;;) { + $temp = $this->rd_key[5+$rk]; + $this->rd_key[6+$rk] = $this->rd_key[$rk] ^ + ($this->Te4[($temp >> 16) & 0xff] & 0xff000000) ^ + ($this->Te4[($temp >> 8) & 0xff] & 0x00ff0000) ^ + ($this->Te4[($temp ) & 0xff] & 0x0000ff00) ^ + ($this->Te4[($temp >> 24) & 0xff] & 0x000000ff) ^ + $this->rcon[$i]; + + $this->rd_key[7+$rk] = $this->rd_key[1+$rk] ^ $this->rd_key[6 + $rk]; + $this->rd_key[8+$rk] = $this->rd_key[2 + $rk] ^ $this->rd_key[7 + $rk]; + $this->rd_key[9+$rk] = $this->rd_key[3 + $rk] ^ $this->rd_key[8 + $rk]; + if (++$i == 8) { + return 0; + } + $this->rd_key[10 + $rk] = $this->rd_key[4 + $rk] ^ $this->rd_key[9 + $rk]; + $this->rd_key[11 + $rk] = $this->rd_key[5 + $rk] ^ $this->rd_key[10 + $rk]; + $rk += 6; + } + } + + $this->rd_key[6] = librijndael2::parseInt("0x" . @substr($userkey, 48, 8)); + $this->rd_key[7] = librijndael2::parseInt("0x" . @substr($userkey, 56, 8)); + + if ($bits == 256) { + for (;;) { + $temp = $this->rd_key[7+$rk]; + $this->rd_key[8+$rk] = $this->rd_key[$rk] ^ + ($this->Te4[($temp >> 16) & 0xff] & 0xff000000) ^ + ($this->Te4[($temp >> 8) & 0xff] & 0x00ff0000) ^ + ($this->Te4[($temp ) & 0xff] & 0x0000ff00) ^ + ($this->Te4[($temp >> 24) & 0xff] & 0x000000ff) ^ + $this->rcon[$i]; + + $this->rd_key[9 + $rk] = $this->rd_key[1 + $rk] ^ $this->rd_key[8 + $rk]; + $this->rd_key[10 + $rk] = $this->rd_key[2 + $rk] ^ $this->rd_key[9 + $rk]; + $this->rd_key[11 + $rk] = $this->rd_key[3 + $rk] ^ $this->rd_key[10 + $rk]; + if (++$i == 7) { + return 0; + } + + $temp = $this->rd_key[11 + $rk]; + $this->rd_key[12 + $rk] = $this->rd_key[4 + $rk] ^ + ($this->Te4[($temp >> 24) & 0xff] & 0xff000000) ^ + ($this->Te4[($temp >> 16) & 0xff] & 0x00ff0000) ^ + ($this->Te4[($temp >> 8) & 0xff] & 0x0000ff00) ^ + ($this->Te4[($temp ) & 0xff] & 0x000000ff); + + $this->rd_key[13 + $rk] = $this->rd_key[5 + $rk] ^ $this->rd_key[12 + $rk]; + $this->rd_key[14 + $rk] = $this->rd_key[6 + $rk] ^ $this->rd_key[13 + $rk]; + $this->rd_key[15 + $rk] = $this->rd_key[7 + $rk] ^ $this->rd_key[14 + $rk]; + $rk += 8; + } + } + return 0; + } + + + // Expand the cipher key into the decryption key schedule. + function set_decrypt() + { + $i = 0; + $j = 0; + $rk = 0; + $bits =& $this->bits; + + if ( $this->key_state == 'decrypt' ) + return 0; + + $this->key_state = 'decrypt'; + + // first, start with an encryption schedule + $status = $this->set_encrypt($bits); + + if ($status < 0) { + librijndael2::trace("AES_set_decrypt_key: AES_set_encrypt_key error"); + return; + } + + // invert the order of the round keys: + for ($i = 0, $j = 4*($this->rounds); $i < $j; $i += 4, $j -= 4) { + $temp = $this->rd_key[$i]; $this->rd_key[$i] = $this->rd_key[$j]; $this->rd_key[$j] = $temp; + $temp = $this->rd_key[$i+1]; $this->rd_key[$i+1] = $this->rd_key[$j+1]; $this->rd_key[$j+1] = $temp; + $temp = $this->rd_key[$i+2]; $this->rd_key[$i+2] = $this->rd_key[$j+2]; $this->rd_key[$j+2] = $temp; + $temp = $this->rd_key[$i+3]; $this->rd_key[$i+3] = $this->rd_key[$j+3]; $this->rd_key[$j+3] = $temp; + } + + // apply the inverse MixColumn transform to all round keys but the first and the last: + for ($i = 1; $i < ($this->rounds); $i++) { + + $rk += 4; + $this->rd_key[$rk] = + $this->Td0[$this->Te4[($this->rd_key[$rk] >> 24) & 0xff] & 0xff] ^ + $this->Td1[$this->Te4[($this->rd_key[$rk] >> 16) & 0xff] & 0xff] ^ + $this->Td2[$this->Te4[($this->rd_key[$rk] >> 8) & 0xff] & 0xff] ^ + $this->Td3[$this->Te4[($this->rd_key[$rk] ) & 0xff] & 0xff]; + + $this->rd_key[1+$rk] = + $this->Td0[$this->Te4[($this->rd_key[1+$rk] >> 24) & 0xff] & 0xff] ^ + $this->Td1[$this->Te4[($this->rd_key[1+$rk] >> 16) & 0xff] & 0xff] ^ + $this->Td2[$this->Te4[($this->rd_key[1+$rk] >> 8) & 0xff] & 0xff] ^ + $this->Td3[$this->Te4[($this->rd_key[1+$rk] ) & 0xff] & 0xff]; + + $this->rd_key[2+$rk] = + $this->Td0[$this->Te4[($this->rd_key[2+$rk] >> 24) & 0xff] & 0xff] ^ + $this->Td1[$this->Te4[($this->rd_key[2+$rk] >> 16) & 0xff] & 0xff] ^ + $this->Td2[$this->Te4[($this->rd_key[2+$rk] >> 8) & 0xff] & 0xff] ^ + $this->Td3[$this->Te4[($this->rd_key[2+$rk] ) & 0xff] & 0xff]; + + $this->rd_key[3+$rk] = + $this->Td0[$this->Te4[($this->rd_key[3+$rk] >> 24) & 0xff] & 0xff] ^ + $this->Td1[$this->Te4[($this->rd_key[3+$rk] >> 16) & 0xff] & 0xff] ^ + $this->Td2[$this->Te4[($this->rd_key[3+$rk] >> 8) & 0xff] & 0xff] ^ + $this->Td3[$this->Te4[($this->rd_key[3+$rk] ) & 0xff] & 0xff]; + } + return 0; + } +} + +/** + * Frontend for Crypt_Rijndael, ABI-compatible with the old Rijndael framework. + * @package Enano + * @subpackage Crypto + * @author Dan Fuhry + * @license GNU General Public License + */ + +class AESCrypt +{ + + /** + * Fetches a Crypt_Rijndael_Key object for the given hex or binary key. + * @param string Key, binary or hex format + * @return object + * @access protected + */ + + protected static function fetch_key($key) + { + static $objects = array(); + + if ( !preg_match('/^[a-f0-9]+$/i', $key) ) + $key = librijndael2::string2hex($key); + + if ( isset($objects[$key]) ) + { + return $objects[$key]; } else { - $mcb = false; - } - - $this->mcrypt = $mcb; - - // Cipher parameters ... do not change these - $this->Nk = $this->keySizeInBits / 32; - $this->Nb = $this->blockSizeInBits / 32; - $this->Nr = $this->roundsArray[$this->Nk][$this->Nb]; - $this->debug = $debug; - } - - public static function singleton($key_size, $block_size) - { - static $_aes_objcache; - if ( isset($_aes_objcache["$key_size,$block_size"]) ) - { - return $_aes_objcache["$key_size,$block_size"]; - } - - $_aes_objcache["$key_size,$block_size"] = new AESCrypt($key_size, $block_size); - return $_aes_objcache["$key_size,$block_size"]; - } - - // Error handler - - function trigger_error($text, $level = E_USER_NOTICE) - { - $bt = debug_backtrace(); - $lastfunc =& $bt[1]; - switch($level) - { - case E_USER_NOTICE: - default: - $desc = 'Notice'; - break; - case E_USER_WARNING: - $desc = 'Warning'; - break; - case E_USER_ERROR: - $desc = 'Fatal'; - break; - } - ob_start(); - if($this->debug || $level == E_USER_ERROR) echo "AES encryption: {$desc}: $text in {$lastfunc['file']} on line {$lastfunc['line']} in function {$lastfunc['function']}
"; - if($this->debug) - { - //echo '
'.enano_debug_print_backtrace(true).'
'; - } - ob_end_flush(); - if($level == E_USER_ERROR) - { - echo '

This can sometimes happen if you are upgrading Enano to a new version and did not log out first. Click here to force cookies to clear and try again. You will be logged out.

'; - exit; - } - } - - function array_slice_js_compat($array, $start, $finish = 0) - { - $len = $finish - $start; - if($len < 0) $len = 0 - $len; - //if($this->debug) echo (string)$len . ' '; - //if(count($array) < $start + $len) - // $this->trigger_error('Index out of range', E_USER_WARNING); - return array_slice($array, $start, $len); - } - - function concat($s1, $s2) - { - if(is_array($s1) && is_array($s2)) - return array_merge($s1, $s2); - elseif( ( is_array($s1) && !is_array($s2) ) || ( !is_array($s1) && is_array($s2) ) ) - { - $this->trigger_error('incompatible types - you can\'t combine a non-array with an array', E_USER_WARNING); - return false; - } - else - return $s1 . $s2; - } - - // This method circularly shifts the array left by the number of elements - // given in its parameter. It returns the resulting array and is used for - // the ShiftRow step. Note that shift() and push() could be used for a more - // elegant solution, but they require IE5.5+, so I chose to do it manually. - - function cyclicShiftLeft($theArray, $positions) { - if(!is_int($positions)) - { - $this->trigger_error('$positions is not an integer! Backtrace:
'.print_r(debug_backtrace(), true).'
', E_USER_WARNING); - return false; - } - $second = array_slice($theArray, 0, $positions); - $first = array_slice($theArray, $positions); - $theArray = array_merge($first, $second); - return $theArray; - } - - // Multiplies the element "poly" of GF(2^8) by x. See the Rijndael spec. - - function xtime($poly) { - $poly <<= 1; - return (($poly & 0x100) ? ($poly ^ 0x11B) : ($poly)); - } - - // Multiplies the two elements of GF(2^8) together and returns the result. - // See the Rijndael spec, but should be straightforward: for each power of - // the indeterminant that has a 1 coefficient in x, add y times that power - // to the result. x and y should be bytes representing elements of GF(2^8) - - function mult_GF256($x, $y) { - $result = 0; - - for ($bit = 1; $bit < 256; $bit *= 2, $y = $this->xtime($y)) { - if ($x & $bit) - $result ^= $y; - } - return $result; - } - - // Performs the substitution step of the cipher. State is the 2d array of - // state information (see spec) and direction is string indicating whether - // we are performing the forward substitution ("encrypt") or inverse - // substitution (anything else) - - function byteSub(&$state, $direction) { - //global $this->SBox, $this->SBoxInverse, $this->Nb; - if ($direction == "encrypt") // Point S to the SBox we're using - $S =& $this->SBox; - else - $S =& $this->SBoxInverse; - for ($i = 0; $i < 4; $i++) // Substitute for every byte in state - for ($j = 0; $j < $this->Nb; $j++) - $state[$i][$j] = $S[$state[$i][$j]]; - } - - // Performs the row shifting step of the cipher. - - function shiftRow(&$state, $direction) { - //global $this->Nb, $this->shiftOffsets; - for ($i=1; $i<4; $i++) // Row 0 never shifts - if ($direction == "encrypt") - $state[$i] = $this->cyclicShiftLeft($state[$i], $this->shiftOffsets[$this->Nb][$i]); - else - $state[$i] = $this->cyclicShiftLeft($state[$i], $this->Nb - $this->shiftOffsets[$this->Nb][$i]); - - } - - // Performs the column mixing step of the cipher. Most of these steps can - // be combined into table lookups on 32bit values (at least for encryption) - // to greatly increase the speed. - - function mixColumn(&$state, $direction) { - //global $this->Nb; - $b = Array(); // Result of matrix multiplications - for ($j = 0; $j < $this->Nb; $j++) { // Go through each column... - for ($i = 0; $i < 4; $i++) { // and for each row in the column... - if ($direction == "encrypt") - $b[$i] = $this->mult_GF256($state[$i][$j], 2) ^ // perform mixing - $this->mult_GF256($state[($i+1)%4][$j], 3) ^ - $state[($i+2)%4][$j] ^ - $state[($i+3)%4][$j]; - else - $b[$i] = $this->mult_GF256($state[$i][$j], 0xE) ^ - $this->mult_GF256($state[($i+1)%4][$j], 0xB) ^ - $this->mult_GF256($state[($i+2)%4][$j], 0xD) ^ - $this->mult_GF256($state[($i+3)%4][$j], 9); - } - for ($i = 0; $i < 4; $i++) // Place result back into column - $state[$i][$j] = $b[$i]; - } - } - - // Adds the current round key to the state information. Straightforward. - - function addRoundKey(&$state, $roundKey) { - //global $this->Nb; - for ($j = 0; $j < $this->Nb; $j++) { // Step through columns... - $state[0][$j] ^= ( $roundKey[$j] & 0xFF); // and XOR - $state[1][$j] ^= (($roundKey[$j]>>8) & 0xFF); - $state[2][$j] ^= (($roundKey[$j]>>16) & 0xFF); - $state[3][$j] ^= (($roundKey[$j]>>24) & 0xFF); + $objects[$key] = new Crypt_Rijndael_Key($key); + $ret =& $objects[$key]; + return $ret; } } - // This function creates the expanded key from the input (128/192/256-bit) - // key. The parameter key is an array of bytes holding the value of the key. - // The returned value is an array whose elements are the 32-bit words that - // make up the expanded key. - - function keyExpansion($key) { - //global $this->keySizeInBits, $this->blockSizeInBits, $this->roundsArray, $this->Nk, $this->Nb, $this->Nr, $this->Nk, $this->SBox, $this->Rcon; - $expandedKey = Array(); - - // in case the key size or parameters were changed... - $this->Nk = $this->keySizeInBits / 32; - $this->Nb = $this->blockSizeInBits / 32; - $this->Nr = $this->roundsArray[$this->Nk][$this->Nb]; - - for ($j=0; $j < $this->Nk; $j++) // Fill in input key first - $expandedKey[$j] = - ($key[4*$j]) | ($key[4*$j+1]<<8) | ($key[4*$j+2]<<16) | ($key[4*$j+3]<<24); - - // Now walk down the rest of the array filling in expanded key bytes as - // per Rijndael's spec - for ($j = $this->Nk; $j < $this->Nb * ($this->Nr + 1); $j++) { // For each word of expanded key - $temp = $expandedKey[$j - 1]; - if ($j % $this->Nk == 0) - $temp = ( ($this->SBox[($temp>>8) & 0xFF]) | - ($this->SBox[($temp>>16) & 0xFF]<<8) | - ($this->SBox[($temp>>24) & 0xFF]<<16) | - ($this->SBox[$temp & 0xFF]<<24) ) ^ $this->Rcon[floor($j / $this->Nk) - 1]; - elseif ($this->Nk > 6 && $j % $this->Nk == 4) - $temp = ($this->SBox[($temp>>24) & 0xFF]<<24) | - ($this->SBox[($temp>>16) & 0xFF]<<16) | - ($this->SBox[($temp>>8) & 0xFF]<<8) | - ($this->SBox[ $temp & 0xFF]); - $expandedKey[$j] = $expandedKey[$j-$this->Nk] ^ $temp; - } - return $expandedKey; - } - - // Rijndael's round functions... - - function RijndaelRound(&$state, $roundKey) { - $this->byteSub($state, "encrypt"); - $this->shiftRow($state, "encrypt"); - $this->mixColumn($state, "encrypt"); - $this->addRoundKey($state, $roundKey); - } - - function InverseRijndaelRound(&$state, $roundKey) { - $this->addRoundKey($state, $roundKey); - $this->mixColumn($state, "decrypt"); - $this->shiftRow($state, "decrypt"); - $this->byteSub($state, "decrypt"); - } - - function FinalRijndaelRound(&$state, $roundKey) { - $this->byteSub($state, "encrypt"); - $this->shiftRow($state, "encrypt"); - $this->addRoundKey($state, $roundKey); - } - - function InverseFinalRijndaelRound(&$state, $roundKey){ - $this->addRoundKey($state, $roundKey); - $this->shiftRow($state, "decrypt"); - $this->byteSub($state, "decrypt"); - } - - // encrypt is the basic encryption function. It takes parameters - // block, an array of bytes representing a plaintext block, and expandedKey, - // an array of words representing the expanded key previously returned by - // keyExpansion(). The ciphertext block is returned as an array of bytes. - - function cryptBlock($block, $expandedKey) { - //global $this->blockSizeInBits, $this->Nb, $this->Nr; - $t=count($block)*8; - if (!is_array($block) || count($block)*8 != $this->blockSizeInBits) - { - $this->trigger_error('block is bad or block size is wrong
'.print_r($block, true).'

Aiming for size '.$this->blockSizeInBits.', got '.$t.'.', E_USER_WARNING); - return false; - } - if (!$expandedKey) - return; - - $block = $this->packBytes($block); - $this->addRoundKey($block, $expandedKey); - for ($i=1; $i<$this->Nr; $i++) - $this->RijndaelRound($block, $this->array_slice_js_compat($expandedKey, $this->Nb*$i, $this->Nb*($i+1))); - $this->FinalRijndaelRound($block, $this->array_slice_js_compat($expandedKey, $this->Nb*$this->Nr)); - $ret = $this->unpackBytes($block); - return $ret; - } - - // decrypt is the basic decryption function. It takes parameters - // block, an array of bytes representing a ciphertext block, and expandedKey, - // an array of words representing the expanded key previously returned by - // keyExpansion(). The decrypted block is returned as an array of bytes. - - function unCryptBlock($block, $expandedKey) { - $t = count($block)*8; - if (!is_array($block) || count($block)*8 != $this->blockSizeInBits) - { - $this->trigger_error('$block is not a valid rijndael-block array: '.$this->byteArrayToHex($block).'

'.print_r($block, true).'

Block size is '.$t.', should be '.$this->blockSizeInBits.'

', E_USER_WARNING); - return false; - } - if (!$expandedKey) + /** + * Fetches a Crypt_Rijndael object. + * @return object + * @access protected + */ + + protected static function fetch_cr_singleton() + { + static $o = null; + + if ( is_object($o) ) { - $this->trigger_error('$expandedKey is invalid', E_USER_WARNING); - return false; - } - - $block = $this->packBytes($block); - $this->InverseFinalRijndaelRound($block, $this->array_slice_js_compat($expandedKey, $this->Nb*$this->Nr)); - for ($i = $this->Nr - 1; $i>0; $i--) - { - $this->InverseRijndaelRound($block, $this->array_slice_js_compat($expandedKey, $this->Nb*$i, $this->Nb*($i+1))); - } - $this->addRoundKey($block, $expandedKey); - $ret = $this->unpackBytes($block); - if(!is_array($ret)) - { - $this->trigger_error('$ret is not an array', E_USER_WARNING); + return $o; } - return $ret; - } - - // This method takes a byte array (byteArray) and converts it to a string by - // applying String.fromCharCode() to each value and concatenating the result. - // The resulting string is returned. Note that this function SKIPS zero bytes - // under the assumption that they are padding added in formatPlaintext(). - // Obviously, do not invoke this method on raw data that can contain zero - // bytes. It is really only appropriate for printable ASCII/Latin-1 - // values. Roll your own function for more robust functionality :) - - function byteArrayToString($byteArray) { - $result = ""; - for($i=0; $i "10ff". The function returns a - // string. - - /* - function byteArrayToHex($byteArray) { - $result = ""; - if (!$byteArray) - return; - for ($i=0; $i [16, 255]. This - // function returns an array. - - /* - function hexToByteArray($hexString) { - $byteArray = Array(); - if (strlen($hexString) % 2) // must have even length - return; - if (strstr($hexString, "0x") == $hexString || strstr($hexString, "0X") == $hexString) - $hexString = substr($hexString, 2); - for ($i = 0; $ienano_str_split($str, 2); - foreach($str as $s) - { - $arr[] = intval(hexdec($s)); - } - return $arr; } - // This function packs an array of bytes into the four row form defined by - // Rijndael. It assumes the length of the array of bytes is divisible by - // four. Bytes are filled in according to the Rijndael spec (starting with - // column 0, row 0 to 3). This function returns a 2d array. - - function packBytes($octets) { - $state = Array(); - if (!$octets || count($octets) % 4) - return; + /** + * Pads a string with nul bytes until it reaches a multiple of 16 bytes. + * @param string + * @return string + */ - $state[0] = Array(); $state[1] = Array(); - $state[2] = Array(); $state[3] = Array(); - for ($j=0; $jblockSizeInBits; - $bpb = $this->blockSizeInBits / 8; // bytes per block - - // if primitive string or String instance - if (is_string($plaintext)) { - $plaintext = $this->enano_str_split($plaintext); - // Unicode issues here (ignoring high byte) - for ($i=0; $icharCodeAt($plaintext[$i], 0) & 0xFF; - } - - for ($i = $bpb - (sizeof($plaintext) % $bpb); $i > 0 && $i < $bpb; $i--) - $plaintext[] = 0; - - return $plaintext; - } - - // Returns an array containing "howMany" random bytes. YOU SHOULD CHANGE THIS - // TO RETURN HIGHER QUALITY RANDOM BYTES IF YOU ARE USING THIS FOR A "REAL" - // APPLICATION. (edit: done, mt_rand() is relatively secure) - - function getRandomBytes($howMany) { - $bytes = Array(); - for ($i=0; $i<$howMany; $i++) - $bytes[$i] = mt_rand(0, 255); - return $bytes; + while ( strlen($string) % 32 > 0 ) + { + $string .= "\000"; + } + return $string; } - // rijndaelEncrypt(plaintext, key, mode) - // Encrypts the plaintext using the given key and in the given mode. - // The parameter "plaintext" can either be a string or an array of bytes. - // The parameter "key" must be an array of key bytes. If you have a hex - // string representing the key, invoke hexToByteArray() on it to convert it - // to an array of bytes. The third parameter "mode" is a string indicating - // the encryption mode to use, either "ECB" or "CBC". If the parameter is - // omitted, ECB is assumed. - // - // An array of bytes representing the cihpertext is returned. To convert - // this array to hex, invoke byteArrayToHex() on it. If you are using this - // "for real" it is a good idea to change the function getRandomBytes() to - // something that returns truly random bits. - - function rijndaelEncrypt($plaintext, $key, $mode = 'ECB') { - //global $this->blockSizeInBits, $this->keySizeInBits; - $bpb = $this->blockSizeInBits / 8; // bytes per block - // var ct; // ciphertext - - if($mode == 'CBC') - { - if (!is_string($plaintext) || !is_array($key)) - { - $this->trigger_error('In CBC mode the first and second parameters should be strings', E_USER_WARNING); - return false; - } - } else { - if (!is_array($plaintext) || !is_array($key)) - { - $this->trigger_error('In ECB mode the first and second parameters should be byte arrays', E_USER_WARNING); - return false; - } - } - if (sizeof($key)*8 != $this->keySizeInBits) - { - $this->trigger_error('The key needs to be '. ( $this->keySizeInBits / 8 ) .' bytes in length', E_USER_WARNING); - return false; - } - if ($mode == "CBC") - $ct = $this->getRandomBytes($bpb); // get IV - else { - $mode = "ECB"; - $ct = Array(); - } - - // convert plaintext to byte array and pad with zeros if necessary. - $plaintext = $this->formatPlaintext($plaintext); - - $expandedKey = $this->keyExpansion($key); - - for ($block=0; $blockarray_slice_js_compat($plaintext, $block*$bpb, ($block+1)*$bpb); - if ($mode == "CBC") - { - for ($i=0; $i<$bpb; $i++) - { - $aBlock[$i] ^= $ct[$block*$bpb + $i]; - } - } - $cp = $this->cryptBlock($aBlock, $expandedKey); - $ct = $this->concat($ct, $cp); - } - - return $ct; - } - - // rijndaelDecrypt(ciphertext, key, mode) - // Decrypts the using the given key and mode. The parameter "ciphertext" - // must be an array of bytes. The parameter "key" must be an array of key - // bytes. If you have a hex string representing the ciphertext or key, - // invoke hexToByteArray() on it to convert it to an array of bytes. The - // parameter "mode" is a string, either "CBC" or "ECB". - // - // An array of bytes representing the plaintext is returned. To convert - // this array to a hex string, invoke byteArrayToHex() on it. To convert it - // to a string of characters, you can use byteArrayToString(). + /** + * Constructor. Currently does not take parameters and ignores options from the old API. + */ - function rijndaelDecrypt($ciphertext, $key, $mode = 'ECB') { - //global $this->blockSizeInBits, $this->keySizeInBits; - $bpb = $this->blockSizeInBits / 8; // bytes per block - $pt = Array(); // plaintext array - // $aBlock; // a decrypted block - // $block; // current block number - - if (!$ciphertext) - { - $this->trigger_error('$ciphertext should be a byte array', E_USER_WARNING); - return false; - } - if( !is_array($key) ) - { - $this->trigger_error('$key should be a byte array', E_USER_WARNING); - return false; - } - if( is_string($ciphertext) ) - { - $this->trigger_error('$ciphertext should be a byte array', E_USER_WARNING); - return false; - } - if (sizeof($key)*8 != $this->keySizeInBits) - { - $this->trigger_error('Encryption key is the wrong length', E_USER_WARNING); - return false; - } - if (!$mode) - $mode = "ECB"; // assume ECB if mode omitted - - $expandedKey = $this->keyExpansion($key); - - // work backwards to accomodate CBC mode - for ($block=(sizeof($ciphertext) / $bpb)-1; $block>0; $block--) - { - if( ( $block*$bpb ) + ( ($block+1)*$bpb ) > count($ciphertext) ) - { - //$this->trigger_error('$ciphertext index out of bounds', E_USER_ERROR); - } - $current_block = $this->array_slice_js_compat($ciphertext, $block*$bpb, ($block+1)*$bpb); - if(count($current_block) * 8 != $this->blockSizeInBits) - { - // $c=count($current_block)*8; - // $this->trigger_error('We got a '.$c.'-bit block, instead of '.$this->blockSizeInBits.'', E_USER_ERROR); - } - $aBlock = $this->uncryptBlock($current_block, $expandedKey); - if(!$aBlock) - { - $this->trigger_error('Shared block decryption routine returned false', E_USER_WARNING); - return false; - } - if ($mode == "CBC") - for ($i=0; $i<$bpb; $i++) - $pt[($block-1)*$bpb + $i] = $aBlock[$i] ^ $ciphertext[($block-1)*$bpb + $i]; - else - $pt = $this->concat($aBlock, $pt); - } - - // do last block if ECB (skips the IV in CBC) - if ($mode == "ECB") - { - $x = $this->uncryptBlock($this->array_slice_js_compat($ciphertext, 0, $bpb), $expandedKey); - if(!$x) - { - $this->trigger_error('ECB block decryption routine returned false', E_USER_WARNING); - return false; - } - $pt = $this->concat($x, $pt); - if(!$pt) - { - $this->trigger_error('ECB concatenation routine returned false', E_USER_WARNING); - return false; - } - } - - return $pt; + public function __construct($key_size = 192, $block_size = 128, $debug = false) + { } /** * Wrapper for encryption. - * @param string $text the text to encrypt - * @param string $key the raw binary key to encrypt with - * @param int $return_encoding optional - can be ENC_BINARY, ENC_HEX or ENC_BASE64 + * @param string Plain text to encrypt + * @param string Binary or hex key + * @param int Format to return result in - ENC_BINARY, ENC_HEX, or ENC_BASE64 + * @return string */ - - function encrypt($text, $key, $return_encoding = ENC_HEX) + + public function encrypt($plaintext, $key, $return_format = ENC_HEX) { - if ( $text == '' ) - return ''; - if ( $this->mcrypt && $this->blockSizeInBits == mcrypt_module_get_algo_block_size(eval('return MCRYPT_RIJNDAEL_'.$this->keySizeInBits.';')) ) - { - $iv_size = mcrypt_get_iv_size($this->mcrypt, MCRYPT_MODE_ECB); - $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); - $cryptext = mcrypt_encrypt($this->mcrypt, $key, $text, MCRYPT_MODE_ECB, $iv); - switch($return_encoding) - { - case ENC_HEX: - default: - $cryptext = $this->strtohex($cryptext); - break; - case ENC_BINARY: - $cryptext = $cryptext; - break; - case ENC_BASE64: - $cryptext = base64_encode($cryptext); - break; - } - } - else - { - $key = $this->prepare_string($key); - $text = $this->prepare_string($text); - profiler_log('AES: Started encryption of a string'); - $cryptext = $this->rijndaelEncrypt($text, $key, 'ECB'); - profiler_log('AES: Finished encryption of a string'); - if(!is_array($cryptext)) - { - echo 'Warning: encryption failed for string: '.print_r($text,true).'
'; - return false; - } - switch($return_encoding) - { - case ENC_HEX: - default: - $cryptext = $this->byteArrayToHex($cryptext); - break; - case ENC_BINARY: - $cryptext = $this->byteArrayToString($cryptext); - break; - case ENC_BASE64: - $cryptext = base64_encode($this->byteArrayToString($cryptext)); - break; - } - } - return $cryptext; + return $this->encrypt_cbc($plaintext, $key, '00000000000000000000000000000000', ENC_HEX); } /** * Wrapper for decryption. - * @param string $text the encrypted text - * @param string $key the raw binary key used to encrypt the text - * @param int $input_encoding the encoding used for the encrypted string. Can be ENC_BINARY, ENC_HEX, or ENC_BASE64. - * @param bool $no_cache If true, will not cache the decrypted string on disk. + * @param string Encrypted text + * @param string Binary or hex key + * @param int Format that the encrypted text is in - ENC_BINARY, ENC_HEX, or ENC_BASE64 + * @param bool If true, avoids caching the decryption result. * @return string */ - - function decrypt($text, $key, $input_encoding = ENC_HEX, $no_cache = false) + + public function decrypt($cryptext, $key, $input_format = ENC_HEX, $no_cache = false) { - if ( $text == '' ) - return ''; - - switch($input_encoding) - { - case ENC_BINARY: - default: - break; - case ENC_HEX: - $text = $this->hextostring($text); - break; - case ENC_BASE64: - $text = base64_decode($text); - break; - } + return $this->decrypt_cbc($cryptext, $key, '00000000000000000000000000000000', ENC_HEX, $no_cache); + } + + /** + * Wrapper for CBC encryption. + * @param string Plain text to encrypt + * @param string Binary or hex key + * @param string 128-bit initialization vector, either hex or binary will do + * @param int Format to return result in - ENC_BINARY, ENC_HEX, or ENC_BASE64 + */ + + public function encrypt_cbc($plaintext, $key, $ivec, $return_format = ENC_HEX) + { + $okey = self::fetch_key($key); + $okey->set_encrypt(); + $aes = self::fetch_cr_singleton(); + $plaintext = librijndael2::string2hex($plaintext); - // Run memory-cache check - if ( isset($this->decrypt_cache[$key]) && is_array($this->decrypt_cache[$key]) ) + // init ivec + if ( strlen($ivec) == '16' ) { - if ( isset($this->decrypt_cache[$key][$text]) ) - { - return $this->decrypt_cache[$key][$text]; - } + $ivec = librijndael2::string2hex($ivec); } - - // Run disk-cache check - $hash = sha1($text . '::' . $key); - if ( $dypt = aes_decrypt_cache_fetch($hash) ) - return $dypt; - - $text_bin = $text; - $key_bin = $key; - - if ( $this->mcrypt ) + else if ( preg_match('/^[a-f0-9]+$/i', $ivec) && strlen($ivec) == 32 ) { - $iv_size = mcrypt_get_iv_size($this->mcrypt, MCRYPT_MODE_ECB); - $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); - $dypt = mcrypt_decrypt($this->mcrypt, $key, $text, MCRYPT_MODE_ECB, $iv); + // ivec is good } else { - $etext = $this->prepare_string($text); - $ekey = $this->prepare_string($key); - $mod = count($etext) % $this->blockSizeInBits; - profiler_log('AES: Started decryption of a string'); - $dypt = $this->rijndaelDecrypt($etext, $ekey, 'ECB'); - profiler_log('AES: Finished decryption of a string'); - if(!$dypt) - { - echo '
'.print_r($dypt, true).'
'; - $this->trigger_error('Rijndael main decryption routine failed', E_USER_ERROR); - } - $dypt = $this->byteArrayToString($dypt); + // invalid ivec + return false; + } + + $result = ''; + $plaintext = str_split($this->pad_string($plaintext), 32); + foreach ( $plaintext as $block ) + { + $result .= $aes->AES_cbc_encrypt($block, $okey, $ivec, 'AES_ENCRYPT'); } - if ( !isset($this->decrypt_cache[$key_bin]) ) - $this->decrypt_cache[$key_bin] = array(); - $this->decrypt_cache[$key_bin][$text_bin] = $dypt; - - if ( !$no_cache ) - aes_decrypt_cache_store($text_bin, $dypt, $key_bin); - - return $dypt; + switch ( $return_format ) + { + case ENC_BINARY: + return librijndael2::hex2string($result); + case ENC_HEX: + default: + return $result; + case ENC_BASE64: + return base64_encode(librijndael2::hex2string($result)); + } } /** - * Enano-ese equivalent of str_split() which is only found in PHP5 - * @param $text string the text to split - * @param $inc int size of each block - * @return array + * Wrapper for CBC decryption. + * @param string Encrypted text + * @param string Binary or hex key + * @param string 128-bit initialization vector, either hex or binary will do + * @param int Format that the encrypted text is in - ENC_BINARY, ENC_HEX, or ENC_BASE64 + * @param bool If true, avoids caching the decryption result. + * @return string */ - - function enano_str_split($text, $inc = 1) + + public function decrypt_cbc($cryptext, $key, $ivec, $input_format = ENC_HEX, $no_cache = false) { - if($inc < 1) return false; - if($inc >= strlen($text)) return Array($text); - $len = ceil(strlen($text) / $inc); - $ret = Array(); - for($i=0;$iset_decrypt(); + $aes = self::fetch_cr_singleton(); + + // init ivec + if ( strlen($ivec) == '16' ) + { + $ivec = librijndael2::string2hex($ivec); + } + else if ( preg_match('/^[a-f0-9]+$/i', $ivec) && strlen($ivec) == 32 ) { - $ret[] = substr($text, $i, $inc); + // ivec is good + } + else + { + // invalid ivec + return false; } - return $ret; + + // perform decryption + $result = ''; + $cryptext_orig = $cryptext; + $cryptext = str_split($cryptext, 32); + foreach ( $cryptext as $block ) + { + $result .= $aes->AES_cbc_encrypt($block, $okey, $ivec, 'AES_DECRYPT'); + } + + // decode result and trim nul bytes + $result = librijndael2::hex2string($result); + $result = rtrim($result, "\000"); + + if ( !$no_cache ) + aes_decrypt_cache_store($cryptext_orig, $result, $key); + + profiler_log("AES: Finished decryption of string $hash"); + + // done! :) + return $result; } /** - * Generates a random key suitable for encryption - * @param int $len the length of the key, in bytes - * @return string a BINARY key + * Factory. + * @param int Key size in bits + * @param int Block size in bits - ONLY 128-bit supported. + * @return object Instance of AESCrypt */ - function randkey($len = 32) + public static function singleton($key_size = AES_BITS, $block_size = 128) { - $key = ''; - for($i=0;$i<$len;$i++) - { - $key .= chr(mt_rand(0, 255)); - } - if ( @file_exists('/dev/urandom') && @is_readable('/dev/urandom') ) + static $instance = false; + if ( !$instance ) { - // Let's use something a little more secure - $ur = @fopen('/dev/urandom', 'r'); - if ( !$ur ) - return $key; - $ukey = @fread($ur, $len); - fclose($ur); - if ( strlen($ukey) != $len ) - return $key; - return $ukey; + $class = __CLASS__; + $instance = new $class(); } - return $key; + return $instance; } - /* - function byteArrayToString($arr) - { - if(!is_array($arr)) - { - $this->trigger_error('First parameter should be an array', E_USER_WARNING); - return false; - } - $ret = ''; - foreach($arr as $a) - { - if($a != 0) $ret .= chr($a); - } - return $ret; - } - */ - - function strtohex($str) - { - $str = $this->enano_str_split($str); - $ret = ''; - foreach($str as $s) - { - $chr = dechex(ord($s)); - if(strlen($chr) < 2) $chr = '0' . $chr; - $ret .= $chr; - } - return $ret; - } - - function gen_readymade_key() - { - $key = $this->strtohex($this->randkey($this->keySizeInBits / 8)); - return $key; - } - - function prepare_string($text) - { - $ret = $this->hexToByteArray($this->strtohex($text)); - if(count($ret) != strlen($text)) - { - die('Could not convert string "' . $text . '" to hex byte array for encryption'); - } - return $ret; - } - - /** - * Decodes a hex string. - * @param string $hex The hex code to decode - * @return string - */ - - function hextostring($hex) - { - $hex = $this->enano_str_split($hex, 2); - $bin_key = ''; - foreach($hex as $nibble) - { - $byte = chr(hexdec($nibble)); - $bin_key .= $byte; - } - return $bin_key; - } } function aes_decrypt_cache_store($encrypted, $decrypted, $key) diff -r 738c61b498a6 -r b051eb79b158 includes/sessions.php --- a/includes/sessions.php Thu Jul 03 15:08:35 2008 -0400 +++ b/includes/sessions.php Thu Jul 03 15:34:09 2008 -0400 @@ -1464,7 +1464,7 @@ return 'success'; } // See if we can get rid of the cached decrypted session key - $key_bin = $aes->hextostring(strrev($this->sid_super)); + $key_bin = hex2bin(strrev($this->sid_super)); $key_hash = sha1($key_bin . '::' . $this->private_key); aes_decrypt_cache_destroy($key_hash); // Destroy elevated privileges @@ -1479,7 +1479,7 @@ { $aes = AESCrypt::singleton(AES_BITS, AES_BLOCKSIZE); // See if we can get rid of the cached decrypted session key - $key_bin = $aes->hextostring($this->sid); + $key_bin = hex2bin($this->sid); $key_hash = sha1($key_bin . '::' . $this->private_key); aes_decrypt_cache_destroy($key_hash); // Completely destroy our session