The Inference Control of Functional Dependency Based on Inference Channel
Xu Yan · Jisuanji fangzhen · 2008
Inference control is an important domain of database security.Generally speaking,functional depend- ency plays an important role in inference attack.This paper studies the inference control problem based on functional dependency,and then presents a method of constructing inference channels based on minimal functional dependency set,and another method of combining the instance of inference channel dynamically based on the idea of inference channel,which achieve the goal of dynamic inference control of functional dependency.The methods above mentioned have been applied to Shenzhou OSCAR Secure Database,and the validity of defense against the inference attack based on functional dependency has been testified.