A Cross-Domain Interoperability Method of Distributed Numerical Control Network Based on Task and Trust Level
With the continuous deepening of industry 4.0,the openness of distributed numerical control network has led to increased vulnerability to cyber-attacks.Traditional cross-domain interoperability models face issues such as insufficient objectivity in access subject authentication,low execution efficiency of tasks,and insufficient precision in identity and permission allocation.To address these challenges,this paper proposed a cross-domain interoperability method of distributed numerical control network based on task and trust level.The method utilized trusted computing 3.0 technology to conduct a trustworthiness assessment of access subjects,objectively evaluated their trustworthiness and enhanced the security of cross-domain requests.Furthermore,this paper proposed a novel interoperability method,which was based on tasks to ensure fine-grained security during interoperation while also enhancing task execution efficiency.Simulation experiments validated the effectiveness and applicability of the proposed cross-domain interoperability method.
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