A system and method for securing a Radio Frequency (RF) transaction using
a Radio Frequency Identification (RFID) transaction device are provided.
A random number is transmitted from an RFID reader to an RFID transaction
device, an RFID transaction device authentication tag is created in the
RFID transaction device, using at least the random number, a routing
number associated with a transaction account, and a stored counter value.
The RFID transaction device authentication tag is transmitted to the RFID
reader, the stored counter value in the RFID transaction device is
incremented, and a transaction request for verification, which comprises
the RFID transaction device authentication tag and the stored counter
value, is transmitted and processed. Either the RFID transaction device
authentication tag or the stored counter value, or both, are verified.