Research And Implementation Of UCON-Based PMI System

Information Security is an inevitable problem in network application. Under modern network environment, network is used more and more widely, so this problem is becoming more immense. With prevention of unauthorized use of resources, or use of resources in an unauthorized manner, enterprises can be protected from losses by information leak. PMI (Privilege Management Infrastructure) is such a comprehensive security solution to provide the above services.PMI provides authentication and access control services simultaneously. While authentication can be provided by an existing PKI (Public Key Infrastructure) system, access control needs implementation of administrative function and access decision function, based on the access control policy and model selected.Classic access matrix based access control has been studied for over thirty years with great attention from the information and computer security community. Nevertheless, there is increasing realization that this model is not adequate for modern application requirements. Researchers have...