Patent ID: 8074889
Filing Date: 2011-12-13
Classification: G01D,G06F,G06Q,G07C,G07F,H04L,H04W

Abstract:
1. A Radio Frequency (RF) customer payment device comprising: an RF transponder configured to receive a device authentication code from an RF Identification (RFID) reader; a unique device identification code; a unique device encryption key corresponding to the unique device identification code; a device account code; a signature sensor configured to detect proffered signature sample data; a device authentication circuit configured to use the unique device encryption key to encrypt the device authentication code and the device account code; and a second RF transponder, wherein at least one of the RF transponder or the second RF transponder is configured to transmit a RFID reader authentication code to the RFID reader and receive an encrypted RFID reader authentication code from the RFID reader in response to the proffered signature sample data matching the authenticated signature sample data; wherein the RF transponder is configured to transmit at least one of the encrypted device authentication code or the encrypted device account code to the RFID reader.