Personal digital identity device responsive to user interaction

1. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier including one or more shared secret keys;

a button accessible to a user of the personal digital ID device;

a radio; and

a processor coupled to the crypto/cipher engine, the button, and the radio, the processor configured to turn on the radio for a predetermined duration in response to user interaction with the button;

wherein the crypto/cipher engine makes available the one or more shared secret keys to perform mutual authentication with a cloud service.

2. The personal digital ID device of claim 1 wherein the processor is configured to turn on the radio in response to one press of the button.

3. The personal digital ID device of claim 1 wherein the processor is configured to turn on the radio in response to two presses of the button.

4. The personal digital ID device of claim 1 wherein the processor is configured to turn on the radio in response to a button press lasting longer than a predetermined threshold.

5. The personal digital ID device of claim 1 wherein the radio comprises an ISO14443 compatible radio.

6. The personal digital ID device of claim 1 wherein the radio comprises an ISO18092 compatible radio.

7. The personal digital ID device of claim 1 further comprising a flexible housing to allow the personal digital ID device to be worn as a personal accessory.

8. The personal digital ID device of claim 7 wherein the flexible housing includes a bracelet shape.

9. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier including one or more shared secret keys;

a battery;

a button accessible to a user of the personal digital ID device;

a radio; and

a processor coupled to the crypto/cipher engine, the button, the battery, and the radio, the processor configured to turn on the radio for a predetermined duration in response to a first user interaction with the button and to report a battery charge level in response to a second user interaction with the button;

wherein the crypto/cipher engine makes available the one or more shared secret keys to perform mutual authentication with a cloud service.

10. The personal digital ID device of claim 9 further comprising at least two non-red light emitting diodes (LEDs), and wherein the processor reports the battery charge level by illuminating a number of the at least two non-red LEDs.

11. The personal digital ID device of claim 9 further comprising a plurality of light emitting diodes (LEDs) coupled to the processor, wherein at least one of the plurality of LEDs is red, and more than one of the plurality of LEDs are non-red, and wherein the processor reports a low battery charge level by illuminating the at least one red LED.

12. The personal digital ID device of claim 11 wherein the plurality of LEDs are located in a line on an exterior surface of the personal digital ID device.

13. The personal digital ID device of claim 9 further comprising a flexible housing in a bracelet shape.

14. The personal digital ID device of claim 13 wherein the flexible housing includes a connector to allow the bracelet shape to be open or closed.

15. The personal digital ID device of claim 14 wherein the connector includes electrical contacts to disconnect the battery when the bracelet shape is open.

16. The personal digital ID device of claim 9 wherein the processor is configured to report the battery charge level in response to one press of the button.

17. The personal digital ID device of claim 9 wherein the processor is configured to report the battery charge level in response to two presses of the button.

18. The personal digital ID device of claim 9 wherein the processor is configured to report the battery charge level in response to a button press lasting longer than a predetermined threshold.

19. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier including one or more shared secret keys;

a button accessible to a user of the personal digital ID device;

a near-field radio;

a non-near-field radio; and

a processor coupled to the crypto/cipher engine, the button, the near-field radio, and the non-near-field radio, the processor configured to turn on the near-field radio and the non-near field radio for a predetermined duration in response to two pushes of the button;

wherein the crypto/cipher engine makes available the one or more shared secret keys to perform mutual authentication with a cloud service.

20. The personal digital ID device of claim 19 wherein the near-field radio comprises a near field communications (NFC) radio.

21. The personal digital ID device of claim 19 wherein the near-field radio comprises an ISO14443 compatible radio.

22. The personal digital ID device of claim 19 wherein the near-field radio comprises an ISO18092 compatible radio.

23. The personal digital ID device of claim 19 wherein the non-near-field radio comprises a Bluetooth compatible radio.

24. The personal digital ID device of claim 19 wherein the non-near-field radio comprises a WiFi compatible radio.

25. The personal digital ID device of claim 19 wherein the non-near-field radio comprises a transceiver compatible with a body area network.

26. The personal digital ID device of claim 25 wherein the transceiver comprises an IEEE 802.15.4 compatible transceiver.

27. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier including one or more shared secret keys;

a button accessible to a user of the personal digital ID device;

a radio; and

a processor coupled to the crypto/cipher engine, the button, and the radio, the processor configured to turn on the radio for a predetermined duration in response to user interaction with the button;

wherein the crypto/cipher engine performs encryption using the one or more shared secret keys to perform mutual authentication with a cloud service.

28. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier;

a button accessible to a user of the personal digital ID device;

a radio; and

a processor coupled to the crypto/cipher engine, the button, and the radio, the processor configured to turn on the radio for a predetermined duration in response to user interaction with the button;

wherein the crypto/cipher engine makes available at least one digital identifier to perform mutual authentication with a cloud service using a public key method.

29. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier including one or more shared secret keys;

a battery;

a button accessible to a user of the personal digital ID device;

a radio; and

a processor coupled to the crypto/cipher engine, the button, the battery, and the radio, the processor configured to turn on the radio for a predetermined duration in response to a first user interaction with the button and to report a battery charge level in response to a second user interaction with the button;

wherein the crypto/cipher engine performs encryption using the one or more shared secret keys to perform mutual authentication with a cloud service.

30. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier;

a battery;

a button accessible to a user of the personal digital ID device;

a radio; and

a processor coupled to the crypto/cipher engine, the button, the battery, and the radio, the processor configured to turn on the radio for a predetermined duration in response to a first user interaction with the button and to report a battery charge level in response to a second user interaction with the button;

wherein the crypto/cipher engine makes available at least one digital identifier to perform mutual authentication with a cloud service using a public key method.

31. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier including one or more shared secret keys;

a button accessible to a user of the personal digital ID device;

a near-field radio;

a non-near-field radio; and

a processor coupled to the crypto/cipher engine, the button, the near-field radio, and the non-near-field radio, the processor configured to turn on the near-field radio and the non-near field radio for a predetermined duration in response to two pushes of the button;

wherein the crypto/cipher engine performs encryption using the one or more shared secret keys to perform mutual authentication with a cloud service.

32. A personal digital ID device comprising:

a crypto/cipher engine having at least one digital identifier;

a button accessible to a user of the personal digital ID device;

a near-field radio;

a non-near-field radio; and

a processor coupled to the crypto/cipher engine, the button, the near-field radio, and the non-near-field radio, the processor configured to turn on the near-field radio and the non-near field radio for a predetermined duration in response to two pushes of the button;

wherein the crypto/cipher engine makes available at least one digital identifier to perform mutual authentication with a cloud service using a public key method.