Research on lightweight anonymous secure ownership transfer protocol of RFID tag

Based on the mechanism of RFID system and limitation of low-cost tags which storage capacity and computing ability,a new RFID tag ownership transfer protocol was presented. In communication process of protocol,lightweight operations were adopted,tag anonym was transmitted in wireless channel which was processed by Pseudo-random Encryption Function. Shared-key recovery mechanism was used to excute authentication and authorization between tags and owners,which could ensure the robusthess of the protocol. At the same time,the shared-key dynamically negotiated and updated by both communication sides. It improved the security of information data in the process of ownership transfer. The analysis results compared with other protocols showed that the protocol could resist various attacks by low-complexity algorithms,and had lower traffic and higher computation efficiency.