【作者】 刘梅； 魏志强； 刘亚敏； 王晓；

【机构】 中国海洋大学计算机应用技术系；

【摘要】 <正>1引言许多企业都把大量的信息和技术通过计算机来控制和管理,安全问题则成为共同关注的问题。保障信息安全的方式有多种:身份验证、授权、访问控制和加密等。访问控制是其中的重要组成部分。更多还原

【Abstract】 Access control model is one of the research focuses currently.Through analyzing the environment of enterprise, taking task and role as two basic features,this paper proposes the task-role based dual access control model T-RBDAC.On the basis of task classification,it can apply to workflow and non-workflow tasks.It solves the problem of role hierarchy inheritance according to different task attributes.The formalized description of T-RBDAC is presented and the model is implemented in the project E-CRM,which proves its practicability and validity.更多还原