Serial-Dependency Grouping-Proof Protocol for RFID EPC C1G2 Tags

Abstract

A key communication technology in smart cities and smart buildings for automation is RFID. Proving the simultaneous presence of a group of RFID-tagged objects is a practical need in many application areas within this domain. Some examples of this include vehicle fleets, smart parking, safety in public places (smart cities), security and access control (smart buildings), and asset location (supply chain system, health care industry). Security, privacy, and efficiency are central issues when designing such a grouping-proof protocol. This work is motivated by Sundaresan et al.'s grouping-proof protocol, which applies zero-knowledge techniques. In this paper, we propose a light, improved version of an offline serial-dependency grouping-proof protocol. Compared to existing grouping-proof protocols, our scheme improves on efficiency, scalability, security, and communication cost. It resists well-known attacks on grouping-proofs including tag/reader anonymity, tracking, forward security, replay, forgery, and message integrity.