A Blockchain-based Solution for Reputation Management in IoV

Abstract

Internet of Vehicles (IoV) is an emerging paradigm in Intelligent Transportation Systems (ITS). It represents a promised solution to handle the massive amount of exchanged information and the continuous demand for services and applications. Nevertheless, the IoV systems showed several vulnerabilities to numerous attacks due to high mobility and fast network topology changing. Hence, the security of IoV systems remains an inevitable concern for researchers and automotive manufacturers. In this paper, we provide a Blockchain-based solution for reputation management in cloud-based IoV system. It ensures the monitoring of vehicles in the network through the computation of routing-based metrics by watchdog nodes, and the continuous update of their reputations, while calling for the use of blockchain technology. The computed reputation will be used to issue certificates and guarantee trust in the vehicular system. The whole computations are achieved in distributed and automated manner using smart contracts. Moreover, homomorphic encryption is used over the metrics to ensure data confidentiality.