Policy-Based Access Control Model for Mobile Agent System

As a new computing mode, the mobile agent technology attracts more and more attention of researchers. However, its complex and changeful computing environment brings forward a higher requirement for the flexibility and consistency of the system´s security access control. To meet this requirement, this paper puts forward an access control model which can be applied in the mobile agent system (MAS). By making a description and conducting management of the policy which is independent of the access control enforcement mechanism, this model realizes access control mechanism with the policy as its core. Different from the existing access control models, through unified configuration over the access control policy, this model ensures the consistency of system security. Meanwhile, the model increases the flexibility of access control and realizes multi-policy supporting of security precaution