一种新的关系数据库水印算法研究

A new relational database watermark method

针对现有水印算法的不足,提出了一种新的关系数据库水印算法。算法首先筛选出可以嵌入水印信息的属性并将他们划分为若干个等大的子集,然后将水印信息的每个二进制位嵌入到相应的子集中。水印检测依据的是中心极限定理,并且实现了水印信息的准确检测。最后通过SQL server进行仿真实验,验证此方法在现实应用中的有效性。

A new database watermarking algorithm is put forward in view of existing algorithm insufficiency. After sieving attributes that can embed watermarking information and dividing these attributes into some equal subsets,the algorithm embeds every watermark bit into corresponding subset. The watermark detection algorithm bases on the Central Limit Theorem and can test watermarking information accurately .In the end,the simulation experiment using SQL server verifies the algorithm's validity in practical applica...