Abstract:

The emerging Grid infrastructure research presents many challenges due to its inherent heterogeneity,dynamics and multidomain characteristics. GSI,the grid security infrastructure mainly oriented to security authentication and communications,pays insufficient attention to the access control. The traditional access control methods are mainly concerned about the security problems of the provider of resources and miss the protection of the access requesters. The diversity of the operation and user heterogeneous computing environments lead to the dynamic Grid environment and uncertainty.The access control method should be improved when dynamic and uncertain changes of the grid environment affect the access requester. It should be asked to dynamically adapt to the security status changes of the grid environment. In this paper we present a security evaluation model for grid (SEMFG) in order to evaluate the security of the access environment and the requester .Evaluation results can guide the access control.

Key words: security evaluation, dynamic, access control, grid