An Efficient Privacy Preserving Authentication Scheme for Vehicular Communications

The inter-vehicular communications need to be secure as well as anonymous as the security and privacy’s effective operations are demanding in order to deploy vehicular ad-hoc networks. In this paper, an effective private signature scheme is proposed to increase the effectiveness of the highly scalable networks such as VANETs. Initially, the regional transportation authority registers the vehicles in its region and the Key Generation Centre assigns the partial private key. A pseudonymous approach is employed for private communication among vehicles. Further, an aggregate signature verification scheme is employed which greatly reduces the signature verification time while enhancing the scalability of the proposed scheme. Thus, an effective private aggregate signature scheme is designed which reduces the signature verification time significantly while increasing the efficiency of the scheme. The empirical analysis on the proposed scheme using simulations confirms the superiority over the existing techniques.