A Reputation Management Scheme for Efficient Malicious Vehicle Identification over 5G Networks

A reputation management scheme plays a critical role for secure communications in vehicular networks. However, due to the limited wireless communication in the past few years, the existing solutions fail to capture the current high-performance network communication provided by the 5G network. As a result, the attributes of security and efficiency can hardly be satisfied at the same time. In this article, we propose IDES, which provides a centralized reputation management scheme to detect malicious nodes in the vehicular network. To discuss the feasibility of our scheme, we design a practical system structure to which our reputation management scheme could be applied and discuss the possible threat modes to our system. With a self-developed event-based emulator, we evaluate the performance of our IDES under malicious attack. Toward defense against the 3 thread mode attack we discuss, we prove that our scheme could take effect much faster, and outperforms the current decentralized trust management schemes.