EGPS: An Efficient Privacy Preserving Scheme for Vehicular ad hoc Networks

In this paper, we propose EGPS, an efficient privacy preserving scheme for vehicular ad hoc networks. The EGPS scheme is based on a very efficient group signature and Identity Based Cryptography(IBC) techniques. Several security properties of EGPS, including the correctness and unforgeability have been proved. Furthermore, EGPS is also proved to be more efficient than GSIS, which is currently one of the best state‐of‐the‐art VANET privacy preserving schemes.