Strange needs?

Hi,

lot of thanks for your extensive help. I think it solves most of my problems
Based on that, it works for some groups:

if ($pun_user['group_id'] != 1  && $pun_user['group_id'] != 2 && $pun_user['group_id'] != 4 && $pun_user['group_id'] != 5) {
   echo "Failure - ".$pun_user['username']." not permitted access.";
   require PUN_ROOT.'footer.php';
   exit();
}

I'm interested in implementing encryption for IP and email addresses in the database.  Just to add security and privacy in case of holes in the server.

I suppose it is not difficult while there is only need of a simple function with mcrypt or similar. However  I'm newbie with PunBB; then to save time I have asked about something similar.

anyway thanks a lot for the code and the mod. 

well, I suppose any reverse function can works.  My idea is encoding the php scripts with eAccelerator.
Do you think there is any obstacle?. Please, tell me your thoughts

An example can be this from php.net:

<?php
 function encrypt($string, $key) {
   $result = '';
   for($i=0; $i<strlen($string); $i++) {
     $char = substr($string, $i, 1);
     $keychar = substr($key, ($i % strlen($key))-1, 1);
     $char = chr(ord($char)+ord($keychar));
     $result.=$char;
   }
   return base64_encode($result);

 }
 function decrypt($string, $key) {
   $result = '';
   $string = base64_decode($string);
   for($i=0; $i<strlen($string); $i++) {
     $char = substr($string, $i, 1);
     $keychar = substr($key, ($i % strlen($key))-1, 1);
     $char = chr(ord($char)-ord($keychar));
     $result.=$char;
   }
   return $result;
 }
?>

not if svo passes the key as a seperate "password" in the admin area when he wants to view the IP. the user would need both the admin password plus the decryption key to see the IP.

ridiculous, i agree - this is svo's request, not mine, and he/she may have a specific purpose for it. but having the key requested in admin does not allow anyone else to decrypt it without knowing both the admin username, admin password, and finally the decryption key required.

I fail to see why an IP is so important to hide.