A system and method for securing a Radio Frequency (RF) transaction using a RF identification device (RFID) transaction device is provided. RFID transaction device includes a transactions counter for tallying the number of transactions attempted or completed with the RFID transactions device. Counter...http://www.google.fr/patents/US7705732?utm_source=gb-gplus-shareBrevet US7705732 - Authenticating an RF transaction using a transaction counter
Authenticating an RF transaction using a transaction counter
