Proof of Travel for Trust-Based Data Validation in V2I Communication

Previous work on misbehavior detection and trust management for Vehicle-to-Everything (V2X) communication security is effective in identifying falsified malicious V2X data. Each vehicle a given region can be witness to report the of other nearby vehicles, which will then added “blacklist.” However, there may not exist enough vehicles that are willing opt-in early stage connected-vehicle deployment. In this paper, we propose “whitelisting” approach security, titled Proof-of-Travel (POT), leverages support roadside infrastructure. Our goal transform power cryptography techniques embedded within Vehicle-to-Infrastructure (V2I) protocols into game-theoretic mechanisms incentivize data sharing validate trustworthiness simultaneously. The key idea determine reputation contribution made by based its distance traveled information it shared through V2I channels. particular, total miles must testified digital signatures signed each infrastructure component along path movement. While building chain proofs spatial movement creates burdens acquiring does result extra costs normal naturally want move from origin destination. POT protocol used enhance previous voting-based validation algorithms crowdsensing applications. For POT-enhanced voting, prove all choosing cheat pure Nash equilibrium using analysis. Simulation results suggest voting more robust