Lightweight identity authentication protocol based on dynamic ID in multi-server environment

To realize the communication security and efficient identity authentication between users and servers, how to design effective identity authentication protocols has gradually become an important research hotspot, more and more identity authentication protocols are proposed. First, this paper analyses the security of the exiting protocols, and finds that it cannot resist Denial of Service (DOS) and offline password guessing attacks. Then, a new lightweight one-way hash function authentication protocol based on dynamic ID is proposed to remedy the security vulnerability mentioned above. For the security analysis, it is proved by non-formal security analysis and two formal analysis methods: Random Oracle Model (ROM) and AVISPA. Finally, the analysis and comparison of computation overheads and communication overheads prove that our protocol can achieve secure and efficient identity authentication. © 2021, Editorial Board of JBUAA. All right reserved.