| 摘要 |
An RFID device 102, 140 comprises an antenna 108, a passive RFID communication module 110 and a passive biometric authentication module 120. The passive RFID communication module 110 is configured to transmit data to an RFID reader 104 without the use of encryption. However, the RFID device 102, 140 is configured such that initially power is supplied only to the passive biometric authentication module 120 until the biometric authentication module 120 has verified the identity of a user, whereupon power is supplied to the passive RFID communication module 110 to permit communication. The RFID device 102, 140 is thus less vulnerable to sniffing attacks than conventional unencrypted RFID tags because the device 102, 140 will hold its data securely until an authorized biometric identifier is presented to it. |
