PDRU: A Privacy-Preserving Dual Reputation Updating Scheme With Multi-Dimensional Feedback Scores in Vehicle Platoon

Vehicle platooning (where multiple vehicles travel together in formation) needs to assess whether the lead vehicle is reliable, which is done through reputation management systems. Existing reputation systems have weaknesses in security, privacy, and use overly simple evaluation methods. This paper proposes PDRU, a new reputation system that uses dual reputation tracking (a backup system to prevent single-point failures), evaluates the lead vehicle across multiple dimensions, and keeps vehicle identities and reputation scores private.