一种基于密钥的水印嵌入位置置乱算法

Algorithm based on key to confuse watermark embedding positions

提出了一种基于密钥的数字水印嵌入位置的置乱算法,该算法利用分组移位和混洗操作将水印嵌入位置进行多次置乱。算法简单,实现方便,嵌入位置随机分散,嵌入位置信息的安全仅依赖于一组密钥,在相当程度上达到了较理想的置乱效果,增加了系统的安全性。

An algorithm based on the key to hash the digital watermark embedding positions was presented. The Scrambling algorithm used shifting and shuffling to hash the watermark embedding positions many times. It is very simple and convenient to carry it out, and then the positions are stochastic and dispersive. The security of embedding positions relies on a key, which to a certain extent makes the result of scrambling perfectly, and increases the security of the system.