Abstract:

In the current vehicle-road collaboration systems, only digital signatures are relied upon to ensure the integrity and authenticity of messages, without encrypting the message content for confidentiality. Due to the lack of encryption mechanisms, all vehicles can freely get vehicle-road collaboration systems service information without authorization, which limits the development of subscription-based or license-based commercial operations. To address this problem, this paper proposes a business model and technical solution based on existing vehicle-road collaboration systems architecture and secure communication protocols. While maintaining the current signature mechanism, symmetric encryption algorithms are adopted to encrypt the content of service messages, ensuring precise control over service recipients and message confidentiality. Experimental results show that the additional processing latency introduced by encryption and decryption operations is minimal and does not significantly impact the timeliness requirements of vehicle-road collaboration systems services, demonstrating the feasibility of large-scale deployment.

Key words: vehicle-road collaboration, business model, encryption