一种基于word文档的数字水印方法

针对目前大量的word电子文档在网络传输中的版权问题,本文提出了用汉明码的纠错编码方法,并采用IDEA加密算法的密码技术,改变word文档字体大小的数字水印算法,实现对文档的版权保护;该算法采用字符的特征编码的思想实现了word文档的水印嵌入和检测,并对水印信息采用了纠错编码的技术,提高了水印信息的抗干扰能力。实验结果表明:该算法具有较好的隐藏效果,抗攻击能力以及较强的鲁棒性。

A digital watermarking method based on word document

In this paper,aiming at copy protection of a large number of word documents in network transmission,we use the hamming error correcting coding,IDEA encryption technique,and the digital watermarking algorithm of changing the word document's character size to realize it.This algorithm is on the basis of character's feature coding idea and it realizes the embedding and detecting of text watermarking.And we use the error correcting coding to enhance the anti-jamming ability of watermark.The experimental results show that the algorithm has good hiding effects,good ability of counteracting attacks and good robustness.