Lightweight RFID Authentication Protocol for Cloud Services using PUF Encryption

To solve the problem that the existing Radio Frequency Identification (RFID) system authentication protocol is not suitable for large-scale RFID tag system, a lightweight RFID Security Authentication Protocol Based on cloud server is studied. Using physical unclonable function (PUF), permutation, string matching and other lightweight encryption algorithms to reduce hardware resource consumption. Add timestamp data to authentication information transmitted in wireless channel to ensure the freshness of authentication information. Use double index mechanism for data access in cloud server to prevent the system from asynchronous attack. BAN logic detection is used to prove the untraceable privacy security. Security analysis shows that the proposed protocol can effectively resist multiple attacks. Comparative analysis shows that the resource consumption and security performance of this protocol are better than those of the compared RFID authentication protocols.