【摘要】 在Sandhu等提出的RBAC96模型中RBAC3的基础上,针对其在机构自身组织结构的管理功能和动态授权方面的不足进行了改进,提出了一种扩展的模型RBAC-GDTRBAC,通过在该模型中引入组、用户授权、有状态任务等概念,增强了RBAC机构管理的能力,增加了对动态授权的支持并能够支持工作的时序要求。更多还原

【Abstract】 The RBAC96 model presented by Sandhu has an disadvantage in management function and dynamic authorization of organization’s own struture.This paper puts forward an extended model-RBAC-GDTRBAC which is based on the RBAC96 model.With the way of grouping,user authorization and stateful task,this model enhances the ability of managing RBAC organization and adds the support to the dynamic authorization.更多还原