MAR_Spoof: Securing VANET against Spoofing and Tunneling attack with cooperative assistance from RSU

VANET is also a Mobile ad-hoc network, which consists of moving vehicles as nodes to create an autonomous network with fixed RSU (Road Side Units) and RTA (Regional trusted Authority acts as a certificate authority). All vehicle nodes create a network in the range of 100m to 300m for information interchange [1]. The primary goal of this network is to provide security measures and to increase data transportation efficiency in message communication. It provides useful information to the vehicles about directions, location mapping, premises, etc. In VANET architecture, vehicle nodes will adjust and react to the data received from other nodes or RSU, inflicting a topology change in the network. Once the vehicle gets into the network it aids in providing an alert and warning message to the neighbouring regarding any incidents occurs on the road such as accidents, roadblock due to fog etc.,.[2] In these cases vehicle node must send emergency and local warning messages to the other nodes to avoid secondary accidents in the same place. If the message communication path is not secured and guaranteed, several attacks may affect, thereby emergency messages may not reach to the destination on time. The spoofing & tunnelling attack are major attacks which may occur on emergency messages in VANET infrastructure.In VANET, localization of vehicles is very important for various services like routing, congestion control, navigation etc.