Real-Time Reliability Access Control Based on Rail Traffic Data Platform

With the introduction of industrial internet, Internet Things, and big data technology, interconnection degree control cloud network is getting higher higher, interface needs to be gradually standardized, there are more open components. Data-based attacks will continue emerge. The real-time reliability access essential for trust value updating between participants. This paper proposes a fine-grained dynamic credibility method based on zero trust. Continuous authentication evaluation should carried out throughout process. zero-trust indicators rail transit platform that conforms requirements grade protection 2.0 established. According risk feedback, current level dynamically updated in real time, results used model. It can reject unauthorized access, reduce occurrence illegal intrusion leakage loss events, has great security.