Defining Strong Privacy for RFID

In this work, we consider privacy in Radio Frequency IDentification (RFID) systems. Our contribution is threefold: (1) We propose a simple, formal definition of strong privacy useful for basic analysis of RFID systems, as well as a different (weaker) definition applicable to multi-verifier systems; (2) We apply our definition to reveal vulnerabilities in several proposed privacy-enhancing RFID protocols; and (3) We formally analyze and suggest improvements to "Hash-Locks," one of the first privacy-enhancing RFID protocols in the literature.

• Type: Conference
• Year: 2007
• Where: PERCOM
• Authors: Ari Juels, Stephen A. Weis
• Keywords: Definition Applicable, PERCOM 2007, Privacy-enhancing Rfid Protocols, RFID Systems, Wireless Networks