Performance Analysis of ABAC and ABAC with Trust (ABAC-T) in Fine Grained Access Control Model

摘要

Access the resources with secured manner is challenging task in a dynamic environment. Though various access control models exist, ABAC plays a vital role in providing access to resources in specific contexts with security. Since ABAC is a fine-grained method its rules and policy reduce flexibility to access the resources. Hence, trust is incorporated with ABAC as one of its attributes to improve flexibility, scalability, security and access level of resources. Trust value is calculated by two metrics such as direct and indirect method for acquiring dynamic trust value. The proposed method includes reputation as main parameter to find accurate trust value in the absence of personal experience. The experiment is done in business organization data which show that the proposed method achieves higher performance than existing models in an unstable state.