A provably secure key transfer protocol for the fog-enabled Social Internet of Vehicles based on a confidential computing environment

Abstract

In recent years, the Social Internet of Vehicles (SIoV) has been widely used in transportation, dramatically enhancing people's lifestyles. SIoV can collect and process traffic information in real-time, alleviate traffic congestion, and realize smart transportation in smart cities. However, the data generated by vehicles moving with servers are transmitted on public channels, so the sensitive information of drivers can be easily intercepted and tampered with by attackers. In addition, the massive amount of real-time data generated by these vehicles, devices, drivers, passengers, and other social relationships impose a tremendous load on servers. Therefore, in this paper, we propose a secure authentication protocol using confidential computing environments. Moreover, we also innovatively offer a better key transfer phase to reduce the computing pressure on cloud servers. We use the Real-Oracle Random model to demonstrate the proposed protocol is provably secure. Experimental evaluation shows that the proposed protocol has excellent computational and communication performance.