PPGCV: Privacy Preserving Group Communications Protocol for Vehicular Ad Hoc Networks

Vehicular communications (VC) have many applications with multicast nature such as cooperative driving and platooning. The multicast nature implies that secure group communication is important to guarantee the security in vehicular networks. One of the main security concerns for vehicular networks is preserving the privacy of the network users. In this paper, we propose privacy preserving group communication protocol for vehicular ad hoc networks (PPGCV). The PPGCV preserves the privacy of the users and provides conditional full statelessness property. By conducting detailed analysis and simulation, PPGCV is demonstrated to be reliable, efficient, and scalable.