A Certificateless Trusted Connection Protocol for Smart Factories
Nianhao Xiao, Long Wang, Jing Fan, Chunzhu Shi, Yutong Xie · 2023
The advent of Industry 4.0 has led to the proliferation of smart factories, significantly enhancing production efficiency. However, this progress brings forth challenges in the form of increased security vulnerabilities and an array of intricate attack vectors in the industrial control and management systems of these factories. In response to the complex, multi-tiered network environment inherent to smart factories, we propose an endogenous security trust mechanism. This mechanism leverages a ternary three-tier trust connection architecture, ensuring device nodes within the smart factory undergo symmetric authentication for perimeter access. Instead of simply allowing devices to connect to each other and form one big network, our mechanism keeps devices isolated between different networks in connection. Central to our design is a certificateless authentication method underpinned by the identity-based cryptographic algorithm. This approach not only facilitates a certificateless trust connection protocol but also mitigates the resource overhead associated with certificate storage and transmission, streamlining both computational and communication overheads. Employing security protocol analysis tools, we rigorously assess the ternary three-tier trust connection authentication model built upon the SM9 algorithm. Our findings corroborate that the protocol remains resilient against potential adversarial attacks in real-world settings.