Research on Vehicle-to-cloud Communication Based on Lightweight Authentication and Extended Quantum Key Distribution

The Internet of Vehicles (IoV) technology has recently emerged as a popular area of research, and vehicle-to-cloud communication forms the basis of the IoV. This process involves uploading a large amount of information related to the vehicle and its location. The security of vehicle-to-cloud communication thus has a significant impact on the safety of the IoV. This paper proposes a vehicle-to-cloud communication system based on lightweight authentication and extended Quantum Key Distribution. The system supports the wireless distribution of session keys between vehicles and the Quantum Cloud Server (QCS) by using a WAN (Wide Area Network), and supports the wired transmission of quantum keys between the QCS and the Telematics Service Provider (TSP) through a LAN (Local Area Network) by using the BB84 protocol. The system can implement encrypted communication based on quantum physical security in a hybrid network. Moreover, we propose a lightweight identity authentication scheme. An analysis of its performance shows that the proposed system requires a small amount of computation and incurs a low communication overhead. This scheme is applicable to most Internet devices with low computing and communication capacity, and can potentially be used in the IoV framework. We conducted simulations of the proposed system and experiments to test its performance. The maximum average delay in communication in experiments was 40.681 ms and the maximum rate of packet loss was 0.1222%. The proposed system can thus ensure safe and efficient IoV communication.