PE文件的水印算法研究与实现

针对已有的两种基于重构PE(Portable Executable)文件结构的水印算法无法应对扭曲变形,而使水印提取错误等问题,利用位图文件的调色板颜色项在位图数据中的出现频数不可改变这一统计规律,建立软件水印与频数序列之间的依赖关系,将水印信息关联到PE文件自身的静态特征中,提出了一种基于文件位图资源的新水印算法。分析表明,该方案相比基于变换PE文件资源结构和引入表结构的算法具有更好的鲁棒性,不仅具有不可感知性,还能抵抗扭曲变形攻击。

Researching and Implementing the Software Watermark Based on PE File

According to the existing algorithm based on refactoring PE file structure of resource section and import table could not immune to distortive attack, a novel algorithm was proposed. On the basis of the times of palette color in the bitmap data would not be changed, the new algorithm established the relationship between software watermark and the static characteristic of PE host. The experimental results and theoretical analysis showed that this scheme is more robust and convert than the existing algorithm, and can resist distortive attack.