Untitled

// decrypt payload here

// figure out key
$key = 0;
for ($i = 0; $i<strlen($name); $i++)  {
    $key = $key + ord(substr($name, $i,1));
}
$key = $key + 702;

// decrypt payload

$decrypted = "";
$skey=strval($key);
$klen=strlen($skey);
$k = 0;
$payload = stripslashes($payload);
for ($i = 0; $i<strlen($payload); $i++) {
  $c = substr($payload,$i,1);
  $result = (substr($skey,$k,1) ^ $c);
  $decrypted = $decrypted.$result;
  $k++;
  if($k+1>$klen) { $k = 0; }
}

// ok, now we have $decrypted, split into component parts
list($dname, $dscore, $did) = explode(':', $decrypted);
if((!$did) or ($dname != $name)) {
system("/bin/echo '$ip: cheater - name:$name dname:$dname' >> /home/kyung/kertong.com/html/kiwikick/scoreboard/log.debug 2>&1");
print "<HTML><BODY>Hey!  No cheating!</BODY></HTML>";
exit;
} else
{
  // data is good!  start updating score
  // first, check if user's UDID exists already