Server-less RFID authentication and searching protocol with enhanced security

Abstract

This paper focuses on two interesting radio-frequency identification (RFID) cryptographic protocols: the server-less RFID authentication protocol that allows readers to authenticate tags without the help of any online backend servers, and the RFID searching protocol in which the verifier explicitly specifies the target tag to be searched and authenticated. These two kinds of RFID protocols play important roles in many RFID applications; however, the existing protocols either had security weaknesses or exhibited poor efficiency. This paper shows the weaknesses, and then proposes our server-less RFID authentication protocol and RFID searching protocol. The proposed protocols greatly enhance the security using one more hashing. © 2011 John Wiley & Sons, Ltd.