User authentication for contact-less systems

Details User authentication for contact-less systems User authentication for contact-less systems

2007-07-24

2007-07-24

Frech, Karl D (Department: 2876)

Registers

Systems controlled by data bearing records

Credit or identification card systems

C235S382500

Reexamination Certificate

active

11299730

ABSTRACT:
A validation phase is performed at an RFID reader, in order to ascertain which of a plurality of potential candidates for authentication, are actual candidates for authentication. Once a candidate has been successfully validated, an authentication phase is initiated with a host computer, to determine whether the information presented by the candidate matches expected information about the candidate. If the authentication is considered successful, a final authorization procedure may be performed, or the authenticated candidate may be granted certain predetermined permissions. By performing the validation phase locally at the reader, the need for accessing a host computer is reduced and unnecessary queries to the host computer are avoided.

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Jonathan Collins, RFID Journal—Tag Encryption for Libraries, http://ww.rfidjournal.com/article, Jul. 14, 2004, pp. 1-2.
Electronic Design, RFID tag reader uses FSK to avoid collisions, http://elecdesign.com/Articles, ED Online ID #6176, Oct. 28, 1999, pp. 1-7.

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