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Journal of Information Science and Engineering, Vol. 25 No. 1, pp. 33-57 (January 2009)

An Ultra Light Authentication Protocol Resistant to Passive Attacks under the Gen-2 Specification

Pedro Peris-Lopez, Julio Cesar Hernandez-Castro,
Juan M. Estevez-Tapiador and Arturo Ribagorda
Department of Computer Science
Carlos III University of Madrid
28911 Leganes, Madrid, Spain
E-mails: {pperis; jcesar; jestevez; arturo}@inf.uc3m.es

Low-cost Radio Frequency Identification (RFID) tags are devices with very limited computational capability, in which only 250-4K logic gates can be devoted to securityrelated tasks. Classical cryptographic primitives such as block ciphers or hash functions are well beyond the computational capabilities of low-cost RFID tags, as ratified by the EPCglobal Class-1 Gen-2 RFID specification. Moreover, the Gen-2 RFID specification does not pay due attention to security. For this reason, an efficient Ultra Light Authentication Protocol (ULAP) is proposed in this paper. This new scheme offers an adequate security level against passive attacks, and is compliant with Gen-2 RFID specification.

Keywords: RFID, security, tag, reader, pseudonym, privacy, mutual authentication, EPC Class-1 Gen-2 specification

Full Text () Retrieve PDF document (200901_03.pdf)

Received May 4, 2007; revised July 31, 2007 & March 24, 2008; accepted April 24, 2008.
Communicated by Tzong-Chen Wu.