Comparative Analysis of VANET Authentication Architecture and Scheme

Vehicle Ad Hoc Network (VANET) is a kind of vehicular self-organizing network. The communication mode of VANET mainly includes V2V, V2I and I2V. VANET has the unique characteristics of changeable network topology, frequent exchange of messages between nodes and unstable channel resources. With the in-depth study of vehicular network, more and more security problems have emerged, and the safety of vehicular network is one of the important factors affecting the overall development of vehicular network. More and more scholars have studied and discussed this issue. This paper summarizes the research work on VANET security authentication in recent years. Firstly, an overview of the mathematical tools, cryptography basics, and cybersecurity knowledge used to build a secure authentication scheme; Then, several types of security authentication methods are introduced from the key technologies of authentication; Finally, it makes a comparative analysis of the existing work and summarizes the prospects.