一种改进的基于量化权限的门限访问控制方案  

Improved threshold access control model based on quantified permissions

作　　者：程西军[1] 陈娟娟[1] 

机构地区：[1]海军工程大学计算机工程系,武汉430033

出　　处：《计算机应用》2008年第S2期255-256,266,共3页journal of Computer Applications

摘　　要：在一些特殊领域,部分权限同时具备质的属性与量的属性。对基于量化权限的门限访问控制方案进行了改进与扩展,解决了权限概念引入权限量后导致的访问控制系统权限及角色数量巨大、管理负荷沉重以及不适应权限量动态演化的问题。改进后的模型在时空效率、表达能力方面显著提高。In some special domains,some permissions not only have the quality attribute,but also have the quantity attribute.The article improved and expanded the threshold access control model based on quantified permissions,solved the problems of access control system deduced by introducing permission quantity into permission concept,such as huge quantity of permissions and roles,heavy administration load,and inadequation to deal with the dynamic quantity evolution.The improved model has the better efficiency of time and space,and the better expressive ability.

关 键 词：量化权限 元权限 门限访问控制 角色访问控制 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]