コード例 #1
0
ファイル: client.class.php プロジェクト: xiaodin1/myqee
 function _key_exchange()
 {
     if (!is_null($this->_key) || $this->_encryptMode == 0) {
         return true;
     }
     $request = "phprpc_encrypt=true&phprpc_keylen={$this->_keylen}";
     $result = $this->_post($request);
     if (is_a($result, 'PHPRPC_Error')) {
         return $result;
     }
     if (array_key_exists('phprpc_keylen', $result)) {
         $this->_keylen = (int) $result['phprpc_keylen'];
     } else {
         $this->_keylen = 128;
     }
     if (array_key_exists('phprpc_encrypt', $result)) {
         $encrypt = unserialize(base64_decode($result['phprpc_encrypt']));
         PHPRPC::xxtea();
         //            require_once('xxtea.php');
         $x = BigInt::random($this->_keylen - 1, true);
         $key = BigInt::powmod(BigInt::dec2num($encrypt['y']), $x, BigInt::dec2num($encrypt['p']));
         if ($this->_keylen == 128) {
             $key = BigInt::num2str($key);
         } else {
             $key = pack('H*', md5(BigInt::num2dec($key)));
         }
         $this->_key = str_pad($key, 16, "", STR_PAD_LEFT);
         $encrypt = BigInt::num2dec(BigInt::powmod(BigInt::dec2num($encrypt['g']), $x, BigInt::dec2num($encrypt['p'])));
         $request = "phprpc_encrypt={$encrypt}";
         $result = $this->_post($request);
         if (is_a($result, 'PHPRPC_Error')) {
             return $result;
         }
     } else {
         $this->_key = NULL;
         $this->_encryptMode = 0;
     }
     return true;
 }