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。
关键词:
时空约束,
委托,
角色,
基于角色的委托模型
Abstract: 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.
Key words:
Temporarily-Spatially(TS) constrained,
delegation,
role,
Role-Based Delegation Model(RBDM)
中图分类号:
向华萍;付智辉;石红芹. 基于角色的时空约束委托模型[J]. 计算机工程, 2010, 36(7): 162-164.
XIANG Hua-ping; FU Zhi-hui; SHI Hong-qin. Role-Based Delegation Model with Temporarily-Spatially Constraint[J]. Computer Engineering, 2010, 36(7): 162-164.