采用扩展SQL语言实现关系数据库安全改造

Using Extended SQL to Realize Security Reconstruction of Relational Databases

分布式数据库安全是保证信息系统安全的一个重要环节.实现数据库安全有2种趋势:一种是改造数据库系统本身;另一种是建立安全的数据库系统运行平台.本文提出采用扩展SQL语句,通过数据库驱动程序为标准的关系数据库增加数据加密、数据完整性保护和审计日志等安全属性的设计思想和设计方案,实现了对现有关系数据库存储的面向应用透明的安全改造.

The security of distributed database is the important link of protecting information system. There are two tendency of realizing database security. One is modifying DBMS itself; the other is building secure running platform of DBMS. This paper proposes the design thoughts and methods of how to enhance the security of relational databases through the extended SQL language and the extended database driver to realize data encryption, data integrity protecting and operation logging etc. It implements the transparent modification of relational database in the aspect of secure data storage.