/* |
*辅助函数 |
*/ |
function passport_key( $str , $encrypt_key ){ |
$encrypt_key =md5( $encrypt_key ); |
$ctr =0; |
$tmp = '' ; |
for ( $i =0; $i < strlen ( $str ); $i ++){ |
$ctr = $ctr == strlen ( $encrypt_key )?0: $ctr ; |
$tmp .= $str [ $i ] ^ $encrypt_key [ $ctr ++]; |
} |
return $tmp ; |
} |