A trusted neighbor table based location verification for VANET Routing

In this paper, we examine one of the security issues in vehicular ad-hoc network (VANETs) routing: position-spoofing attack. We propose a trusted neighbor table (TNT) based location verification scheme to detect and prevent position-spoofing attack. The basic idea of our scheme is to establish a TNT for each node to record the latest location of its neighbors, and each neighbor has a trust value. Since our TNT is trusted, by choosing a next hop from it and considering its trust value, we can mitigate the influence of falsified position information in geographic routing protocols. Analysis shows that our scheme is secure and efficient.