关键词: 软件水印, PE文件, 引入函数, 版权保护

Abstract: By analyzing the structural characteristics of import table and the calling approach of function in the module, a new software watermark based on structure transform of PE file import table was proposed. The new method made digital watermark information hidden in the sequence of import modules and functions in the PE file. Analysis shows that the method is more covert and robust than that utilizing redundant PE file space or resources structure, and it provides a more secure way of software copyright protection.

Key words: software watermarking, PE file, inducting function, copyright protection