An Efficient Offline Delegation Protocol in Mobile RFID Environment

In this paper, we propose a new protocol to allow delegation transfer between offline mobile readers in the mobile RFID (Radio Frequency Identification) environment. A mobile reader can grant the access rights of a specific tag to another reader. Besides, our protocol is efficient and secure against most current network threats, such as replay attacks, Man-in-the-Middle (MITM) attacks, denial of service (DoS) attacks caused by asynchronous update, guessing attacks, and counterfeit tags. It also guarantees forward/backward secrecy, data privacy, and location privacy.