Key Security Protection Model of Industrial Control System Based on Distributed Key

As the pillar of China's economy, industry is spread across all fields of social production, so the security of industrial control system is particularly important, and the security technology of China's industrial control system is still in its infancy, the core technology is missing, and the centralized key is mostly used for encryption, but the centralized management has the problem of poor attack resistance. This paper adopts distributed key technology. The introduction of trusted nodes to achieve decentralization effectively reduces the risk of industrial control system keys being stolen, and is conducive to the normal and stable operation and development of industry.