【摘要】 分析和比较了传统访问控制模型中客体与共享设备资源的异同,指出了设备资源具有时间依赖性、权限差异性、容量受限和进程依赖性,并根据共享设备资源的特性要求,在基于角色的访问控制模型的基础上引入了动态执行者、固定角色和设备访问控制策略等概念,提出了一种远程设备访问控制模型(RDAC),更好地实现了对设备的描述和访问控制。更多还原

【Abstract】 This paper analyzes and contrasts the difference between conventional access control objects and share device resources.It presents device resource characteristics,such as time-dependent permit diversity privilege,access capacity and process-dependent.According to the four key characteristics and role-based access control model,it introduces several concepts such as dynamic actor,permanent role and device access policy etc.A remote device access control(RDAC) model is presented.This model satisfies the requirement for describing online device and access control.更多还原