基于Rough集理论的数据库推理通道动态消除  

Dynamic Elimination of Inference Channels in the Database Based on Rough Set Theory

作　　者：张增军[1] 戴江山[1] 肖军模[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《国防科技大学学报》2005年第2期52-55,共4页Journal of National University of Defense Technology

基　　金：江苏省基金资助项目(BK2004015)

摘　　要：提出了一种基于Rough集理论的数据库推理泄漏通道消除方法。在由数据库中所有数据生成的不完备决策表上,该方法应用Rough集理论,分析提取出敏感和非敏感数据之间的确定性推理关系,以此产生推理控制规则。利用这些规则对数据库系统返回给普通用户的数据动态地做最小修改,防止推理通道的产生。实验结果表明,该方法可扩展性强,在保证较高的数据库安全性的同时提高了数据可用性。This paper describes an approach to elimination of inference channels in the database based on rough set theory. The approach builds an incomplete decision table on all data in the database, then analyzes and discovers all the relations between non-sensitive and sensitive data with rough set theory. According to these relations, rules of inference control are generated and used to modify the data queried by generic users dynamically and most parsimoniously so as to eliminate inference channels. Experimental result shows that the approach is scalable and preserves security of inference control while improving availability of the data in the database.

关 键 词：ROUGH集理论 推理控制 推理通道 数据的可用性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]