| 摘要 |
A system and method of, and a service that employs, user authentication each employs a bluecard created by the service and stored on a personal trusted device (PTD). The system includes the service and the bluecard. The bluecard includes a unique identifier derived from a hardware address of the PTD. The PTD and the service communicate with one another over a personal area network (PAN) during user authentication. The method includes creating the bluecard and pushing the bluecard onto the PTD using an object exchange (OBEX) protocol of the PAN. The service includes a terminal and the created bluecard. The terminal has the PAN that communicates with the PTD. The bluecard is subsequently sent to the service from the PTD for user authentication via the PAN.
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