A Design of Onto-ACM(Ontology based Access Control Model) in Cloud Computing Environments

There are a lot of security issues in cloud computing service environments such as virtualization, distributed big data processing, serviceability, traffic-handling, application security, access control, authentication, cryptography and etc. Especially, data access using various resources needs authentication and access control model for integrated management and control in cloud computing environments. Cloud computing service provides a differentiated service according to component of security policy because a permitted limit of service provider and user are different. RBAC(Role-Based Access Control) and C-RBAC(Context-Aware Role Based Access Control) do not suggest effective and practical solution using dynamic access control method by manager and user. Therefore, new dynamic access control model needs to make up for the weakness of existing problems according to cloud computing characteristic. In this paper, we propose Onto-ACM(Ontology Based Access Control Model) for dynamic access control. Onto-ACM is a semantic analysis model for permitted limit of service provider and user. This proposed model is the intelligent context-aware access model for applying the proactive security level of resources access using context information ontology modeling and reasoning engine.