A security protocol designed with proxy for RFID

RFID (Radio Frequency Identification) is a widely used auto identification technology, its security issues cause for much concern in practical applications. So far, experts from industry and academia have proposed a series of solutions, including physical methods, security protocols based on cryptography, and hardware encryption technique, etc. However, defects also exist in most of them, which fail to fulfill the security requirements of RFID systems. In consequence, we propose a new security protocol designed with proxy, demonstrating a good fusion of physical methods and security protocols. After the corresponding theoretic comparing and analysis, it is indicated that the new protocol can efficiently defend RFID systems against monitoring, deception, tracking, replay attacks, and greatly decrease the possibility of suffering denial of service. The asynchronous problem on systemic information might caused by ID-updating is also discussed to lessen the authentication failure of the legal tags.