关系数据库数字水印技术研究与分析

随着计算机和网络技术的发展，如多媒体、关系数据库等计算机数字产品的版权保护技术一直以来都是计算机信息安全技术研究的重要方向．关系数据库水印技术是近年来在多媒体数字水印基础上发展起来的水印技术．对数据库水印技术与传统的多媒体数字水印技术做出比较分析，并分析其发展现状，同时，给出数据库数字水印技术嵌入与检测模型，并且分析在关系数据库水印技术的发展过程所出现的代表性水印技术算法，最后对这些关系数据库数字水印技术所潜在的威胁进行深入探讨．

Study and Analysis on Digital Watermark for Relational Database

With the development of computer and network technology, such as multimedia, relational database, the technology of protection the copyright of computer digital product is the branch of the study of the security technology for information. Watermark for R-database developed which was based on multimedia digital watermark in recent years. This paper compares the digital watermark technology of R-database and traditional multimedia, and analyses the status of the former. This paper illustrates the model of embedding and detection for R-database digital watermark, and algorithm for it. Finally, it describes the threats deeply associated with R-database digital watermark.