摘要
介绍具有时空约束的角色授权委托模型,在RBDM0和RDM2000的基础上,对授权委托中的角色、权限、操作等要素进行时空化处理,使授权委托具备时空属性,并形式化地描述严格/非严格委托、单/多步委托以及全部/部分委托的授权判断规则,为该模型在实际系统中的实现奠定基础。
A Temporarily-Spatially(TS) constrained Role-Based Delegation Model(TS-RBDM) is introduced. On the basis of RBDM0 and RDM2000, role, permission, and operation in delegation are all temporarily-spatially sensitive, which makes delegation have TS attribute, and introduces some formal definition of TS RBDM including issues of strict/non-strict delegation, one/multiple step delegation, entire/partial delegation, and provides the foundation for applications executing the permission delegation.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第7期162-164,共3页
Computer Engineering
基金
江西省自然科学基金资助项目(2008GZS0012)
关键词
时空约束
委托
角色
基于角色的委托模型
Temporarily-Spatially(TS) constrained
delegation
role
Role-Based Delegation ModeI(RBDM)