A car networking certificate management method to prevent privacy leakage

Abstract

The invention discloses a car networking certificate management method for preventing privacy leakage, and belongs to the field of car networking. This method combines long-term certificates and temporary certificates, enabling vehicles to obtain long-term valid identities and temporary identities used within a certain range in the Internet of Vehicles, avoiding insecure factors caused by a single identity, and improving communication efficiency. The method includes three parts: registration of the vehicle node, authentication and communication of the vehicle node on the road, and defense against malicious nodes. This method uses local symmetric keys and temporary certificates to realize communication during vehicle driving, uses the characteristics of confidentiality and less content of temporary certificates to increase security and efficiency, and uses shorter local symmetric keys and signatures to improve communication Encryption, decryption and mutual authentication speed. The method is universal and can be widely used in the Internet of Vehicles and road traffic.

Description

technical field [0001] The invention belongs to the field of Internet of Vehicles, and relates to an efficient certificate management method for Internet of Vehicles that prevents privacy leakage. Background technique [0002] Vehicle Ad Hoc Network (VANET) is a specific application of mobile ad hoc networks in the field of transportation. Each vehicle in operation constitutes the basic node of vehicle networking communication, and uses a new type of wireless multi-hop ad hoc mobile communication technology to form a network. The vehicle ad hoc network can be regarded as a vehicle-specific platform for sharing information. Vehicles can obtain road information, traffic conditions and other information. Due to its advantages in information, transportation, security, etc., the Internet of Vehicles has become the focus of many researchers because of its important position in intelligent transportation systems. The vehicle self-organizing network uses vehicles as basic communica...

AI Technical Summary

Problems solved by technology

The signature of the existing PKI system cannot meet the efficiency of the authentication period; while the identity verification signature solves the problem of authentication efficiency, but in order to ensure the privacy of vehicle nodes, the multiple identities distributed make it impossible to prohibit malicious nodes in the Internet of Vehicles by revoking an illegal identity. communication

Images