摘要
针对传统RBAC(Role Based access control)模型不能适应当前网络和分布式计算应用环境的分布、异构和动态性的特点,为了适应应用环境的动态要求,将上下文感知和上下文约束加入RBAC模型,提出了上下文感知的动态访问控制模型CDAC(Context-aware Dynamic Access Control Model),并给出了该模型的一个应用实例。该模型不仅继承了RBAC的优点,还利用上下文感知和上下文约束,实现了角色和权限的实时的动态管理。
In view of the traditional R, BAC model cannot adapt the current network and the distributed computing application environment＇ s distribution, isomerism and dynamic characteristics, author added context-aware and context constraints in PBAC, proposed context-aware dynamic access control modei（CDAC） to adapt the application environment dynamic request, and gave an application example of this model. This model does not only inherited the PBAC merit, but also used the context-aware and context constraints,realized real-time dynamic management of the role and permission.
出处
《计算机安全》
2009年第8期5-8,共4页
Network & Computer Security
基金
国家高技术研究发展计划(863计划)(No.2006AA01Z455)
