A secure blockchain system for Internet of Vehicles based on 6G-enabled Network in Box

Abstract

Network in Box (NIB) is a self-organizing and portable device. The six-generation wireless communication technologies (6G) can empower NIB with better spectrum efficiency by integrating satellite broadcasting. 6G-enabled NIB is promising to promote the communication efficiency of Internet of Vehicles (IoV). IoV has emerged as the concrete practice of intelligent transportation. However, IoV is vulnerable to attacks from quantum computers because they use traditional RSA and elliptic cure cryptographic systems. Therefore, it is critical to improving the security of IoV against quantum computer attacks. This paper proposes the first secure scheme based on post-quantum techniques for 6G-enabled NIB to protect IoV against quantum attacks. On the one hand, a blockchain-based public key infrastructure is proposed to authenticate the IoV devices securely. On the other hand, we design a blockchain-based multi-party key agreement and communication system to support multi-party communication among IoV devices. The extensive theoretical analysis and experimental results indicate that the proposed blockchain system based on 6G-enabled NIB can achieve high security and efficiency for IoV.