动态授权策略修正研究  

Amendment of dynamic authority policy

作　　者：易川江[1] 金海[1] 涂旭平[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：《华中科技大学学报（自然科学版）》2012年第4期5-7,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：针对动态授权策略生成时存在误差的问题,提出利用信用卡规则引入修正因子参数,对授权策略进行修正,并给出了修正因子表达式.在将顺序、循环、并发、选择4种基本服务关系序列化后,可建立有序服务队列,进而基于有序服务队列给出授权策略修正表达式,提高动态授权策略准确性.通过实验对策略修正表达式进行验证,表明修正因子可以根据历史信用记录调整授权策略.There may being some errors in dynamic authority policy,a modification factor was designed to improve the accuracy of authority policy by using the credit card rule.After serializing the four relationship types of service,sequence,switch,while and flow,an ordered service sequence was built.By adding to the amendment factor,the modification formula on ordered service sequence was given.The authority accuracy was improved using the modification formula.The experiment results show the modification factor can adjust the policy better.

关 键 词：信息安全 访问控制 授权 策略修正 服务队列 

分 类 号：TP301.5[自动化与计算机技术—计算机系统结构]