An Extended Chaotic Map-Based Authentication and Key Agreement Scheme for Multi-Server Environment

With the increasing number of users and emergence different types network services, a multi-server architecture has emerged in recent years. In order to ensure secure communication Internet participants an open environment, authentication key agreement protocol for architectures were proposed past. 2018, Chatterjee et al. put forward lightweight three-factor they claimed that all known security features with satisfactory performance could be realized their protocol. However, it is found scheme vulnerable user impersonation attacks cannot achieve un-traceability through our cryptanalysis. solve these shortcomings, we propose new anonymous environment this article. Furthermore, proved AKE theoretically, use BAN-logic prove realizes mutual between participants. Finally, show practical efficient comparison performance.