摘要： 基于角色的访问控制(RBAC)是一种广泛应用的授权访问控制方式。但传统的RBAC模型既没有给出控制角色指派的方法,也不能保证角色许可最少优先原则。该文针对传统RBAC系统中存在的上述缺陷,通过引入用户可信度和角色实例的概念,提出了一种考虑用户可信度的动态RBAC模型,给出了模型执行过程。

关键词: 访问控制, 角色, 角色实例, 用户可信度

Abstract: The role-based access control (RBAC) is an authorization access control mode applied widely. But the traditional RBAC model doesnot give the method to control the role assignment and it cannot assure the least priority of the role’s permission. During to the limitations of thetraditional RBAC system, this article introduces the conception of users’ reliability and roles instance to bring forward a dynamic RBAC modelconsidering the users’ reliability, It also gives the executing process of the model.

中图分类号: 

• TP393.08