基于任务-角色的访问控制模型  

Task-Role-Based Access Control Model

作　　者：宋善德[1] 刘伟[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《计算机工程与科学》2005年第6期4-6,9,共4页Computer Engineering & Science

摘　　要：本文介绍了一种称为基于任务角色的访问控制机制。它从工作流中的任务角度建模,可以依据任务和任务状态的不同,对权限进行动态管理;阐述了任务和任务实例之间的关系,以任务为中介将角色和权限关联起来,并对其模型进行了形式化描述和分析。In this paper, an access control mechanism called TRBAC (task role based access control) is introduced, which models from the tasks in workflow and dynamically manages the permissions through tasks and task status. The relationships between tasks and task instances are explained. In the TRBAC model, permissions are assigned to tasks and tasks are assigned to roles. The basic concepts of TRBAC are introduced and a formalization description and an analysis are given.

关 键 词：访问控制 主动安全模型 任务 工作流 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]