Design of dynamic fine-grained role-based access control strategy

Cloud Environment is a platform shared by multi-tenants from different credible domains, thus achieving data sharing safely and effectively has been a great concern to legitimate users. In this paper, we provide a flexible access control strategy which is based on the RBAC (Role-based Access Control) model, and is integrated with a series of security attributes and organization labels for enterprise applications. This strategy subdivides the roles and their corresponding permissions into smaller fractions so as to realize the dynamic performance and fine-grained assignment of an application on the assumption of the reliance of the Third Party. Finally, an analysis combined with one actual implementation is provided to show its effectiveness and practicality in the process of access control while applied in the enterprise-like corporation systems.