【摘要】 针对数据库数字水印技术主要用于在海量数据信息中嵌入水印信息,为数据所有权方维护自己的资产所有权提供有力证据的特点,介绍关系数据库水印算法在综合业务数据库系统中的应用,给出综合客户信息数据库应用数字水印的实现过程,讨论和分析水印的评测效果。该应用在水印嵌入和提取时对数据库元组只需一次扫描,效率高于原有算法。更多还原

【Abstract】 Database watermark can embed watermark in massive data.Database watermark can provide sufficient evidences for data owners by which they can protect their ownership of assets.This paper discusses application about relational database watermark on integrated business system and the implementation procedure of the application.It discusses and analyses some evaluation results of the application.In this application,whether embedding or extracting,it scans full recorders only once,so the algorithm in this application improves efficiency greatly compared with the previous algorithm.更多还原