require 'Runik'

function Encode(s) _script.php
 [[
   $crc = 0xFFFF; 
   for ($x = 0; $x < strlen ($s); $x++) { 
     $crc = $crc ^ ord($s[$x]); 
     for ($y = 0; $y < 8; $y++) { 
       if (($crc & 0x0001) == 0x0001) { 
         $crc = (($crc >> 1) ^ 0xA001); 
       } else { $crc = $crc >> 1; } 
     } 
   } 
   $s = $crc; 
 ]]
 return s
end