一种四维访问矩阵模型的建立  

Establishment of four-dimension access matrix model

作　　者：王超[1] 茅兵[1] 谢立[1] 

机构地区：[1]南京大学计算机科学与技术系,江苏南京210093

出　　处：《计算机工程与设计》2004年第5期668-670,707,共4页Computer Engineering and Design

基　　金：国家863高技术计划基金(2001AA144010)

摘　　要：传统的主体—客体访问矩阵模型缺少对动态因素的描述,故应用在刻画系统中具体的资源访问活动时存在着许多不足,如无法实现“最小特权”原则和缺乏对访问授权时间特性的控制。引入可执行程序及时间两维,提出的四维访问控制模型很好地弥补了上述的不足。Because of lacking something to discribe dynamic characters,the traditional Subject-object access matrix model has lots of bugs in characterization of some access to resource of real system.For example:it can’t implement the principle of least privilege or has less control on time character of access privilege.After setting up two dimensions of executable program and time, a four-dimension access mutrix model come into being based on which the bugs refered to above were removed.

关 键 词：访问矩阵模型 可执行程序 时间 自主访问控制 强制访问控制 信息安全 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]