Patent ID: 6955299

Claim:
A smart card comprising: an interface with a smart card reader; first circuitry configured to receive a first enable signal from a portable smart card enabler device, wherein the first enable signal is transmitted to the first circuitry without passing through the smart card reader; second circuitry coupled with the interface and the first circuitry and configured to allow the smart card to function with the smart card reader upon receiving the first enable signal from the portable smart card enabler device by the first circuitry, and to disable the smart card to function with the smart card reader if the first circuitry does not receive the first enable signal from the portable smart card enabler device; and wherein the first circuitry is also configured to receive a second enable signal from the portable smart card enabler device, and wherein the second circuitry is also configured to allow the smart card to perform a transaction with the smart card reader upon receiving the second enable signal from the portable smart card enabler device by the first circuitry, and to disable the smart card to perform the transaction with the smart card reader if the first circuitry does not receive the second enable signal from the portable smart card enabler device.