一种关系数据库的多媒体多重水印

A Multiple Watermarking of Multi-Media for Relational Databases

针对关系数据库水印算法的一些不足,提出了一种保护关系数据库的多重水印方法.该方法将密钥和语音等多媒体信号结合在一起作为水印嵌入关系数据库,实现了多重水印在关系数据库中的嵌入和提取,并且多重水印提取时不需要原始数据的参与.实验表明,该方法有效地平衡透明性与稳健性之间的关系,对子集选择攻击和子集改变攻击具有较好的稳健性.

A multiple watermarking algorithm is proposed to protect relational databases copyright for some lacks of the existing multi -- watermarking algorithms. The novel multiple watermarking scheme, which embeds multi -- media watermarks into relational database. The watermark embedding and extraction algorithms are specified. The algorithm is ＂blind＂ in that it isn＇t requires original data in order to detect a watermark. The results of the corresponding watermark experiments and the attack experiments verify that the proposed method is correct feasible and robust.