PUF-Based Secure Checker Protocol for Networked RFID Systems

Radio Frequency Identification (RFID) system is an emerging technology for automating object identification. The Networked RFID System (NRS) is a component of a distributed object identification network which facilitates automated supply chain management. It also makes the Internet of Things (IoT) concept a reality. To increase the business feasibility of NRS implementation, the system should be able to ensure the visibility and traceability of the object throughout the chain using a checker protocol. By doing so, the protocol will check the genuineness of the object and the genuineness of the object's previous travel path on-site. While doing so, the protocol needs to ensure the security requirement of the system. To this end, we propose a secure checker protocol for NRS which will use a PUF (Physically Unclonable Function) and simple cryptographic primitives. The protocol provides security (protect privacy of the partners, injection of fake objects, non-repudiation, and unclonability), visibility and traceability for NRS. It is also suitable for passive tags.