サイバーフィジカルシステムのクラウド型セキュリティ診断を設計する際の課題

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  • On Challenges in the Cloud-based Security Diagnosis of Cyber-Physical Systems

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Cyber-physical systems（CPS）contribute to the realization of Society 5.0,which is the society that Japan is aiming for,but there is a greater risk of cyber-attacks.Security measures are indispensable when infiltrating cyber-physical systems into critical infrastructure.However,even if there are no vulnerabilities with the system at the time of acceptance,new vulnerabilities may be discovered,or as the years go by,vulnerabilities may be embedded when a part of the system is updated or when operations vary.A mechanism that can carry out security diagnosis regularly would be required,and efficient implementation of diagnosis utilizing cloud computing environments is a candidate for its solution.In this paper,we clarify the issues when performing security diagnoses from the cloud and show two design patterns to deal with the emerging issues.Evaluation experiments were conducted after applying these two design patterns to the demonstration environment of CPS.As a result of the evaluation,we showed that the emerging issues could be handled by these two design patterns with cloud and cellular networks.

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