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Indexed by:会议论文

Date of Publication:2008-09-02

Included Journals:EI、CPCI-S、Scopus

Volume:1

Page Number:137-143

Abstract:Although RBAC models have received broad support as a generalized approach to access control, the administration of roles in large organizations can become quite cumbersome. In this paper, we develop a new paradigm for access control and authorization management, called task-role based access control(T-RBAC) with multi-constraint. The basic idea of this model different from traditional RBAC is that roles and permissions are not connected directly but are put together by tasks. It is a dynamic authorization model with fine-grained partition on users, roles, tasks and sessions. The unit of task becomes the permission granularity. It is more convenient for enterprise privilege management such as distributed application, C/S access control and workflow management. It can reduce the administrators burden and avoid some potential safety hazards because of adopted dynamic authorization.