Short paper: Establishing trust in a vehicular network

This work aims to formulate a procedure to establish a graded trust system within autonomous vehicular networks. A trust management system in VANETs typically falls into one of two categories: centralized or distributed. Our solution is a hybrid system which merges the two canonical designs of a centralized and distributed structure that utilizes to capabilities of both systems. In this paper we provide the design of a trust system that takes into account both central and local evaluations to establish trust. In order to validate the trust system we design a simulation model in MATLAB that captures the interaction between different vehicles and between the vehicles and the Central Authority. The simulations show a high decision performance for the trust management system and validate the proposed scheme as a coherent grading system.