Abstract: Although it is convenient to exchange data by publishing view, some information may be disclosed in the publishing process, Therefore, it is a new issue of database security to ensure the publishing view safety. This paper proposes the theorem of query-view security determining and method of measuring disclosure, and gives algorithm of eliminate the information disclosure. Experimental results show that algorithms eliminate the information disclosure efficiently, and ensure the view security.

Key words: database security, view publication, information disclosure, critical tuple

摘要： 视图发布给数据交换带来了方便，在视图发布过程中可能造成信息泄漏，“发布视图的安全性”成为数据库安全的一个新课题。该文给出了“查询-视图”安全判定定理以及公开测量算法，分析了基于关键元组的消除信息泄漏算法。实验结果显示，该算法可以消除信息泄漏、保证视图安全。

关键词: 数据库安全, 视图发布, 信息泄漏, 关键元组

CLC Number: 

• TP311