An Efficient Access Control Model for Highly Distributed Computing Environment

For a secure highly distributed computing environment, we suggest an efficient role based access control using attribute certificate. It reduces management cost and overhead incurred when we change the specification of the role. In this paper, we grouped roles and structured them into the role group relation tree. It results in secure and efficient role updating and distribution. For scalable role specification certificate distribution, multicasting packets are used. We take into account the packet loss and quantify performance enhancements of structuring role specification certificates.