NOVEL AUTHENTICATED STRATEGY FOR SECURITY ENHANCEMENT IN VANET SYSTEM USING BLOCK CHAIN ASSISTED NOVEL ROUTING PROTOCOL

In recent days, the fast growth of Vehicular Ad-Hoc Network has made smart driving practicable. The VANET performs communication with other vehicles with the intention of improving traffic flow and eliminating accidents and road hazards. VANET is nonetheless susceptible to security attacks by malicious users because of the open wireless nature of the communication channels. As a result, in this proposed system, the novel authenticated strategy for security enhancement in VANET system using block chain assisted novel routing protocol is implemented to prevent from vulnerable attacks. When vehicle enters a new roadside zone, it must continue the reauthentication procedure using the current RSU, which lowers the VANET system's overall effectiveness. Consequently, those mentioned problems are solved via blockchain technology. Reauthentication is effectively accomplished through safe authentication code transmission between the succeeding RSUs thanks to the decentralized nature of blockchain technology. The proposed system's reliability robustness against numerous harmful threats assures that it provides superior security. Furthermore, the Horse Optimization Algorithm based routing protocol assisted with blockchain technology used in this approach significantly reduce the computational and communication cost when compared to traditional approaches. To evaluate the effectiveness of blockchain assisted routing protocol, performance parameters such as PDR, routing overhead, throughput, communication and computational cost with varying scalabilities are measured. According to the findings, the proposed system works better than other existing approaches. In addition to this, our proposed framework substantially guarantees a secure and trustworthy vehicular environment with user privacy preserved.