Why is relational check-code important for RFID applications?
• RFID tags are ISO 14443 or 18000 protocols that allowed open architecture in reading and encoding. That is, anyone can write onto the tags once the tags left the installation operation. When used by proper users, this is one of the important advantages of RFID over the barcode. • Relational check-code is devised to tell if encoded data in the tag are authentic and made by authorized users. • Additional relationship can be built-into the code to document who encoded specific data. Any additional encoded data by another users will create another traceable relational codes to provide an audit trail. • Any encoding or modification by an unauthorized user can be easily recognized. • This patent-pending application of the relational check was created to enable this technology for use in mission-critical applications.
