Private reputation retrieval in public - a privacy-aware announcement scheme for VANETs

Abstract

An announcement scheme is a system that facilitates vehicles to broadcast road-related information in vehicular ad hoc networks (VANETs) in order to improve road safety and efficiency. Here we propose a new cryptographic primitive for public updating of reputation score based on the Boneh-Boyen-Shacham short group signature scheme. This allows private reputation score retrieval without a secure channel. Using this we devise a privacy-aware announcement scheme using reputation systems which is reliable, auditable and robust.

This paper is a preprint of a paper submitted to IET Information Security and is subject to Institution of Engineering and Technology Copyright. If accepted, the copy of record will be available at IET Digital Library