摘要
基于角色的访问控制方法(Role-BasedAccessControl,简称RBAC)实现用户与访问权限的逻辑分离和构造角色之间的层次关系,从而方便了数据的安全管理。为实现RBAC在复杂环境中的应用,文章提出了一种基于Agent的自适应RBAC包装器。按照Agent设计方法研究了包装器的体系结构,设计了知识库、RBAC实现部件、底层通讯部件、顶层通讯部件和外部世界感知部件,构造了RBAC、R-D、R-M和R-X四种知识模型。
The RBAC(Role-Based Access Control)method shows powerful capability on access control by realizing logi-cal separation between users and permissions and construction role hierarchies.To adopt RBAC in complicated environ-ment ,a self-adapted RBAC wrapper based on agent is presented in this paper.The framework of the wrapper is studied by the way of agent designing.Knowledge base,RBAC actualization component ,bottom communication component ,top communication component and exterior induction component is designed.Four knowledge models RBAC model,R-D model,R-M model and R-X model are constructed.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第28期102-105,124,共5页
Computer Engineering and Applications
基金
国家自然科学基金(编号:50074031)资助