diff options
Diffstat (limited to 'vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php')
| -rw-r--r-- | vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php b/vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php index 3648a1972..4665738e1 100644 --- a/vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php +++ b/vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php @@ -340,7 +340,7 @@ class Rijndael extends Base $k = $c[2]; $l = $c[3]; while ($i < $Nb) { - $temp[$i] = ($state[$i] & 0xFF000000) ^ + $temp[$i] = ($state[$i] & intval(0xFF000000)) ^ ($state[$j] & 0x00FF0000) ^ ($state[$k] & 0x0000FF00) ^ ($state[$l] & 0x000000FF) ^ @@ -426,7 +426,7 @@ class Rijndael extends Base $l = $Nb - $c[3]; while ($i < $Nb) { - $word = ($state[$i] & 0xFF000000) | + $word = ($state[$i] & intval(0xFF000000)) | ($state[$j] & 0x00FF0000) | ($state[$k] & 0x0000FF00) | ($state[$l] & 0x000000FF); @@ -465,14 +465,19 @@ class Rijndael extends Base { // Each number in $rcon is equal to the previous number multiplied by two in Rijndael's finite field. // See http://en.wikipedia.org/wiki/Finite_field_arithmetic#Multiplicative_inverse - static $rcon = array(0, - 0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000, - 0x20000000, 0x40000000, 0x80000000, 0x1B000000, 0x36000000, - 0x6C000000, 0xD8000000, 0xAB000000, 0x4D000000, 0x9A000000, - 0x2F000000, 0x5E000000, 0xBC000000, 0x63000000, 0xC6000000, - 0x97000000, 0x35000000, 0x6A000000, 0xD4000000, 0xB3000000, - 0x7D000000, 0xFA000000, 0xEF000000, 0xC5000000, 0x91000000 - ); + static $rcon; + + if (!isset($rcon)) { + $rcon = array(0, + 0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000, + 0x20000000, 0x40000000, 0x80000000, 0x1B000000, 0x36000000, + 0x6C000000, 0xD8000000, 0xAB000000, 0x4D000000, 0x9A000000, + 0x2F000000, 0x5E000000, 0xBC000000, 0x63000000, 0xC6000000, + 0x97000000, 0x35000000, 0x6A000000, 0xD4000000, 0xB3000000, + 0x7D000000, 0xFA000000, 0xEF000000, 0xC5000000, 0x91000000 + ); + $rcon = array_map('intval', $rcon); + } if (isset($this->kl['key']) && $this->key === $this->kl['key'] && $this->key_length === $this->kl['key_length'] && $this->block_size === $this->kl['block_size']) { // already expanded @@ -511,7 +516,7 @@ class Rijndael extends Base // on a 32-bit machine, it's 32-bits, and on a 64-bit machine, it's 64-bits. on a 32-bit machine, // 0xFFFFFFFF << 8 == 0xFFFFFF00, but on a 64-bit machine, it equals 0xFFFFFFFF00. as such, doing 'and' // with 0xFFFFFFFF (or 0xFFFFFF00) on a 32-bit machine is unnecessary, but on a 64-bit machine, it is. - $temp = (($temp << 8) & 0xFFFFFF00) | (($temp >> 24) & 0x000000FF); // rotWord + $temp = (($temp << 8) & intval(0xFFFFFF00)) | (($temp >> 24) & 0x000000FF); // rotWord $temp = $this->_subWord($temp) ^ $rcon[$i / $this->Nk]; } elseif ($this->Nk > 6 && $i % $this->Nk == 4) { $temp = $this->_subWord($temp); @@ -641,9 +646,9 @@ class Rijndael extends Base )); foreach ($t3 as $t3i) { - $t0[] = (($t3i << 24) & 0xFF000000) | (($t3i >> 8) & 0x00FFFFFF); - $t1[] = (($t3i << 16) & 0xFFFF0000) | (($t3i >> 16) & 0x0000FFFF); - $t2[] = (($t3i << 8) & 0xFFFFFF00) | (($t3i >> 24) & 0x000000FF); + $t0[] = (($t3i << 24) & intval(0xFF000000)) | (($t3i >> 8) & 0x00FFFFFF); + $t1[] = (($t3i << 16) & intval(0xFFFF0000)) | (($t3i >> 16) & 0x0000FFFF); + $t2[] = (($t3i << 8) & intval(0xFFFFFF00)) | (($t3i >> 24) & 0x000000FF); } $tables = array( @@ -725,9 +730,9 @@ class Rijndael extends Base )); foreach ($dt3 as $dt3i) { - $dt0[] = (($dt3i << 24) & 0xFF000000) | (($dt3i >> 8) & 0x00FFFFFF); - $dt1[] = (($dt3i << 16) & 0xFFFF0000) | (($dt3i >> 16) & 0x0000FFFF); - $dt2[] = (($dt3i << 8) & 0xFFFFFF00) | (($dt3i >> 24) & 0x000000FF); + $dt0[] = (($dt3i << 24) & intval(0xFF000000)) | (($dt3i >> 8) & 0x00FFFFFF); + $dt1[] = (($dt3i << 16) & intval(0xFFFF0000)) | (($dt3i >> 16) & 0x0000FFFF); + $dt2[] = (($dt3i << 8) & intval(0xFFFFFF00)) | (($dt3i >> 24) & 0x000000FF); }; $tables = array( @@ -809,7 +814,6 @@ class Rijndael extends Base // Generating encrypt code: $init_encrypt.= ' - static $tables; if (empty($tables)) { $tables = &$self->_getTables(); } @@ -866,7 +870,6 @@ class Rijndael extends Base // Generating decrypt code: $init_decrypt.= ' - static $invtables; if (empty($invtables)) { $invtables = &$self->_getInvTables(); } @@ -923,7 +926,7 @@ class Rijndael extends Base $lambda_functions[$code_hash] = $this->_createInlineCryptFunction( array( - 'init_crypt' => '', + 'init_crypt' => 'static $tables; static $invtables;', 'init_encrypt' => $init_encrypt, 'init_decrypt' => $init_decrypt, 'encrypt_block' => $encrypt_block, |