【摘要】 介绍了数据库加密及其特点,并总结了原有数据库加密技术在加密范围上的限制、以及对DBMS功能的影响。基于这种技术现状,提出一种改良方案——保存顺序的加密方法OPES。OPES解决了加密技术和数据库系统整合时出现的性能降低这一重大实际难题,保证了查询处理的响应速度。更多还原

【Abstract】 In this paper, database encryption and its characteristic are presented. The range and the influence to the DBMS original function are summarized. Ground on this point, a better scheme is proposed. The practice problem that the integration of encryption technology and database system results in falling of the performance is solved, and response pace of query process is ensured suc- cessfully.更多还原