Design of the ERBAC for Role Delegations

This paper applies RBAC policy for solving on the security problems when it will be operated several business on the distributed environments and designed Extended RBAC (ERBAC) model that it is possible to manage security systems on the distributed environments. The designed ERBAC model is based on RBAC96 model due to Sandu et al and added role delegations. Therefor, the designed ERBAC model have the advantage of the following . it can be processed of business without interrupts and implemented server system without modifying its source code, high migration, easy and simple of secure managing.