REACT- Implementing Security in VANET and Increasing Stability using Greedy Forwarding Algorithm

Privacy and security are major issues in vehicular ad hoc networks. Several works have been proposed with the same aim. However, as far as, some researches on VANET protocols have addressed the privacy issues and encryption key establishment. To do so, vehicles need to continuously send safety messages providing the position information to nearby vehicles. This frequent messaging may cause the tracking of vehicles, if it success to eavesdrop the wireless medium. The integrity of the messages exchanged between subscriber and RSUs and the privacy of VANET users who exchange these messages are a major concern. A web-based secure registration process allows a user to register in RSUs. At the registration session, users give all needed information that licenses them to have the advantage of secure connectivity throughout the communication. Moreover, the proposed cryptographic function that allows users and RSUs to provide the required security level of exchanged messages. For obtaining security against privacy hacking and eves dropping, it makes an RSU to make the next encryption key and the next pseudonym to use unique. Routing efficiency is improved using the highly stable greedy forwarding mechanism. Thus, the robustness of the user privacy and secure communication in service oriented vehicular networks and efficient routing is achieved under various communication attacks.