Design and research of an improved RBAC model

Abstract

Analyze the defect of Role Based Access Control and Task Based Access Control model. Based on the two models, put forward an improved Role Based Access Control model to meet the demand of distributed network environment. The formalized definition and constraint are also presented. The new model imports the concept of virtual organization and service flows. Solve the conflict of the model by a new method. The method combines three policies with each other. The policies are administrator priority, refusing grant priority and authorization priority. Through the analysis, the model can meet the demand of distributed environment and can be realized easily.

Research and Implementation of a Four-Dimensional Access Control Model

“…Meanwhile, due to the increasing requirements and the changing of software development technology, users of management information systems are more and more, its range involves more widely, the scale and complexity of those systems are growing too, the security has got much more attention. Therefore, how to ensure the security of the management information system while offering friendly operating experience and taking into account features of it, such as resources openness, sharing and so on, is a hot topic in current [1].…”