A subjective logic-based reputation management scheme for highway Internet of Vehicles

With the widespread application of blockchain technology on the Internet of Vehicles (IoV), numerous Blockchain-based IoV (BIoV) solutions have emerged. As one of the important application scenarios of IoV, highway needs a highly reliable reputation management scheme to ensure secure data sharing. To solve the problems of privacy leakage and hostile attacks caused by the lack of trust between nodes in the highway BIoV scenario, a reputation management scheme for Highway Internet of Vehicles based on subjective logic (HISL) is proposed. Under the condition of low transmission rate of highway packets, real-time reputation update can effectively prevent malicious nodes. In addition, our system model ensures privacy security and data integrity in the highway IoV environment and effectively improves data sharing efficiency. The performance analysis results show that the HISL solution can detect the disguised malicious nodes in a shorter time, thus effectively solving the security problem in highway and even more IoV scenarios.