Fast Handover Authentication Based on Mobility Prediction

This chapter discusses the characteristics of VANETs and how vehicles are moving on the road. It presents a fast handover authentication scheme based on a vehicle's mobility prediction. First, the chapter introduces a two-layer network architecture based on WiMax and 802.11p, in which broadband wireless Internet access supports both vehicles' safety-related applications and general mobile users' entertainment-related applications. Next, it briefly talks about the multilayer perceptron (MLP) classifier. The proposed seamless authentication scheme is composed of the following four phases: initial vehicle authentication phase, movement prediction phase, preauthentication phase, and handover phase. The chapter analyzes the security properties of the proposed scheme. In particular, it shows how the scheme can effectively resist replay attack and provide forward secrecy. The chapter concludes with a discussion on the performance of the proposed preauthentication scheme.