Vehicle Authentication in Vehicular Ad-hoc Network using RSU Based Approach

Vehicular Ad Hoc Network (VANET) is a pervasive network where vehicles communicate with nearby vehicles and infrastructure nodes, such as Road-side unit (RSU). VANET is the subclass of Mobile Ad Hoc Network (MANET) in which nodes move randomly and are connected wirelessly. Information sharing among vehicles is an essential component of an intelligent traffic system (ITS), but security and privacy concerns must be taken into consideration. Security of the network can be improved by granting access only to authenticated vehicles. This research proposes an RSU based approach to authenticate vehicles and notify vehicles about unauthorized messages/vehicles. It helps in preventing other vehicles in the network from being influenced by the malicious vehicle. In this approach, Blockchain has been used to securely maintain the identity of all vehicles in the network. The use of this RSU based approach helps to reduce the computational overhead on the On-board unit (OBU) of individual vehicles and reduces the processing delay