A New Blockchain-based Trust Management protocol For Vehicular ad hoc networks

Trust establishment in Smart Transportation environments is a challenging task due essentially to the high speed of vehicles, the long distances and the network topology dynamics. Furthermore, the applications context requires that the lifetime of data messages be short, so the vehicles have to authenticate the reliability of the received messages timely to make decision accordingly. In this paper work, we conduct a comprehensive review of the recent schemes dealing with trust management in vehicular environments, particularly, blockchain-based ones. Besides, we propose a dependable trust management scheme based on blockchain aiming to calculate for each vehicle a unique and up-to-date trust metric available to all other vehicles to solve the cold-start problem.