A study on policy conflicts analysis of multi-domain access control in clouds

Policy conflicts problem is the bottleneck restricting of multi-domain access control. In this paper, we study the factors and detection methods of multi-domain access control policy conflict. Focused on the typical multi-domain access control model of RBAC, we proposed a policy conflicts detection method based on synthesis strategy and correction set, which is improved rely on updating global policy table in part. Experiment proved that our method was more flexible than traditional static detection method.