基于关系数据库数字水印的统计数据保护模型

电子政务,电子商务系统要求对统计数据“既要保证安全又要进行交换”,保护文档中的统计数据成为一个亟待解决的问题。本文提出一种基于关系数据库数字水印技术的统计数据保护模型,通过在统计数据文档的数据中嵌入数字水印,然后在内外网之间网络节点处提取水印,根据水印提供的信息决定是否外传文档和确定统计数据的版权,从而有效地控制内网中统计数据非法传播．保护统计数据的版权。

PROTECTION MODEL FOR STATISTIC DATA BASED ON DIGITAL WATERMARKING FOR RELATIONAL DATABASE

E-Gov System and E-Commerce System demand themselves to "assure information security as well as do information transmission".It becomes important to protect statistic data document from illegally spreading to the outer network.This paper proposes a protection model based on digital watermarking for relational database.We embed watermark information into the dataset of document,then detect and extract watermark on network node,and control the document transmission according to the watermark information.We can use this model to(effectively) control access to sensitive statistic data documents in the inner network and protect the digital right of statistic data.