Biometric enrolment authorisation

1. A method comprising:

sending an RFID device to a user, the RFID device having a biometric authentication engine including a memory and a biometric sensor; and

sending an authorisation code associated with the RFID device to the user, wherein the authorisation code is sent separately from the RFID device;

wherein the RFID device is configured such that, responsive to the user presenting the RFID device to an RFID terminal and inputting the authorisation code to the terminal, the RFID device will enter an enrollment mode during which the user is authorised to enroll their biometric data to the memory using the biometric sensor.

2. A method according to claim 1 , wherein the RFID device is configured, after enrollment of the biometric data, to verify the identity of the user responsive either to inputting of the authorisation code or to scanning of biometric data matching the enrolled biometric data.

3. A method according to claim 1 , wherein the biometric data cannot be changed after enrollment.

4. A method according to claim 1 , wherein the biometric authentication engine is a fingerprint authentication engine and the biometric sensor is a fingerprint sensor.

5. A method according to claim 1 , wherein the RFID device is a proximity integrated circuit card compliant with ISO/IEC 14443.

6. An RFID device comprising a biometric authentication engine including a memory, a processor and a biometric sensor, wherein the processor is configured such that, responsive to a user of the RFID device presenting the RFID device to an RFID terminal and inputting an authorisation code to the terminal, the RFID device will enter an enrollment mode during which the user is authorised to enroll their biometric data to the memory using the biometric sensor.

7. An RFID device according to claim 6 , wherein the memory is for storage of biometric data to verify the identity of the user, and wherein the memory does not initially contain biometric data.

8. An RFID device according to claim 6 , wherein the RFID device is configured, after enrollment of the biometric data, to verify the identity of the user responsive either to of inputting of the authorisation code or to scanning of biometric data matching the enrolled biometric data.

9. An RFID device according to claim 6 , wherein the biometric data cannot be changed after enrollment.

10. An RFID device according to claim 6 , wherein the biometric authentication engine is a fingerprint authentication engine and the biometric sensor is a fingerprint sensor.

11. A method according to claim 6 , wherein the RFID device is a proximity integrated circuit card compliant with ISO/IEC 14443.

12. A method comprising:

sending a device to a user, the device having a biometric authentication engine including a memory and the biometric sensor; and

sending an authorisation code associated with the device to the user, wherein the authorisation code is sent separately from the device;

wherein the device is configured such that, responsive to receiving and verifying the authorisation code, the device will enter an enrollment mode during which the user is authorised to enroll their biometric data to the memory using the biometric sensor.

13. A method according to claim 12 , wherein the device is configured, after enrollment of the biometric data, to verify the identity of the user responsive either to inputting of the authorisation code or to scanning of biometric data matching the enrolled biometric data.

14. A method according to claim 12 , wherein the biometric data cannot be changed after enrollment.

15. A method according to claim 12 , wherein the biometric authentication engine is a fingerprint authentication engine and the biometric sensor is a fingerprint sensor.

16. A method according to claim 12 , wherein the device is a proximity integrated circuit card compliant with ISO/IEC 14443.