natmchugh

How to copy, read and write Paxton fobs and cards with an RFIDler

A newer version of this info is available at https://badcfe.org/how-to-paxton-with-rfidler/

Paxton fobs and readers are popular in the UK especially the Net2 system where the fobs look like this with a blue ring:

Paxton readers often look like this:

natmchugh

<?php

function preProcess($message) {
    $message .= chr(128);
    while (((strlen($message) + 8) % 64) !== 0) {
        $message .= chr(0);
    }
    return $message;
}