【摘要】 基于角色的访问控制模型自提出以来一直被视为用来进行访问控制的普遍方法。作者主要是从时间的角度去探讨该模型中职责分离的情况,并采用一种较为简单规范来说明此种带有时间特性的职责分离并提出了相应的执行模型。更多还原

【Abstract】 role-based access control(RBAC)models are receiving increasing attention as a generalized approach to access control.In the paper,it is mainly discussed about separation of duty in the role-based access control(RBAC)models by means of time,and introduce a simply specification to explain the temporal separation of duty as well as the corresponding enforcement model.更多还原