The Security Threats And Security Architecture Design

ABSTRACT Among civilian communication systems, vehicular communications emerge as one of the most convincing effort made to enhance safety and improve the efficiency of transportation systems, to meet ever-increasing traffic demands. Security is one of the critical factors that need to be addressed towards the deployment of vehicular communication systems. The efficiency of the transportation systems, as well as the physical safety of vehicles, drivers, and passengers depend on the security factor. Vehicular communications has to pass through the analysis of potential security threats and the design of a robust security architecture able to cope with these threats. In this paper we deal with the security threats and security architecture design. INTRODUCTION: Vehicular communications (VC) will play a vital role in enabling safer, smarter and greener transportation, with envisioned applications providing, for example, warnings on environmental hazards (e.g., ice on the pavement), traffic and road conditions (e.g., emergency braking, congestion, or construction sites), and local (e.g., tourist) information. To empower such applications, vehicles and road-side infrastructure units (RSUs), namely network nodes, will be furnished with on-board processing and wireless communication modules, to communicate with each other over single or multiple hops. 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