International Journal of Emerging Technology and Advanced Engineering (IJETAE)
Vehicular Ad hoc NETworks (VANET) is a subgroup of Mobile Ad hoc NETworks (MANET) which is using for improves traffic safety system. Since the movements of vehicles are restricted by roads, traffic regulations the authors can deploy fixed infrastructure at critical locations. They focus their paper on the different kind of attacks and its behavior or impact in safety system and how many challenges; they have to accept for high security. In this paper, they classify different attacks based on different layers like MAC layer, network, transport, application and multi layer and different challenges which included authentication, availability privacy, anonymity etc.