【摘要】 对基于角色访问控制(role-based access control,RBAC)研究中的热点之一模型的建立进行了较深入的研究,提出了一种针对异构数据库系统新的RBAC模型——H-RBAC(Heterogeneous RBAC,异构基于角色的访问控制),H-RBAC模型引入角色集成继承实现局部角色和全局角色的层次关系,通过会话分流实现动态的访问控制。该模型能够高效、灵活地实现异构数据库系统的联合访问控制。更多还原

【Abstract】 This paper discusses the construction of role-based access control(RBAC) which is one of hot topics in the research of role-based acce control. A new RBAC model named H-RBAC (Heterogeneous RBAC) model is presented. H-RBAC model imports integrated inheritance to realiz the relationship between local role and global role and completes access control by session diffluence. This model can complete the united acce control of the heterogeneous database system efficiently and neatly.更多还原