Wireless Communications are gaining more importance because they have opened new research fields by extending data networks connectivity to environments where wired solutions are difficult to install. The networks which are deployed in the areas where the needed infrastructure is not feasible to install are adhoc networks. Mobile Adhoc NETworks (MANETs), in which each node acts as both data terminal and router uses wireless medium without the need of any centralized control. Vehicular Adhoc NETworks (VANETs) are subset of MANETs. The successful deployment of vehicular communication requires Vehicle-to-Vehicle (V2V) & Vehicle-to-Infrastructure (V2I) communication with security to improve road safety and optimize road traffic.