A Trust Management Model for Internet of Vehicles

Abstract

With the continuous development of automatic driving technology, the application scenarios of Internet of Vehicles are more and more abundant, but it also faces more and more security threats. The problem that the identity of the vehicle is real but difficult to guarantee the reliability of interaction and the truth of shared information can be solved by using trust management technology. By deeply analyzing the main characteristics of trust management in Internet of Vehicles, a trust model suitable for Internet of Vehicles is proposed. The model takes the owner's offline social relationship as the basis for setting the initial trust of vehicle nodes, evaluates the direct trust based on the instant evaluation of satisfaction after interaction, and satisfies the rapid decision-making of the vehicles by limiting the length of the recommendation path when evaluating the recommendation trust. The simulation experiment shows that the model can help to establish stable and reliable trust relationship among the vehicles, and reduce the risk of value imbalance attack and collusion attack in trust management.