Secure and Lightweight Authentication Protocol in Internet of Things

The further development of Internet of things (IoT) makes the number of various terminal devices grow rapidly. At the same time, the amount of data collected and transmitted through terminal devices is also increasing. However, in the communication between devices and servers, most of them lack efficient identity authentication and encrypted communication mechanisms suitable for IoT environment. Therefore, in order to secure the communication between these devices and servers, they need to be protected by password technology. This paper proposes a secure communication protocol based on chaotic mapping algorithm, which is used to ensure the bidirectional identity authentication and data encryption between IoT devices and servers. The protocol is proved by Burrows Abadi Needham(BAN) logic, Scyther and informal security analysis that it satisfies the security and can resist various security attacks, and achieve anonymity and nontraceability. Finally, the performance comparison analysis with similar protocols shows that the proposed protocol significantly improves the security and has high efficiency.