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中文摘要：
针对现有文本水印算法鲁棒性不强的特点，提出一种中文文本水印多重嵌入的方法：基于汉字分组实现特殊字符的分散冗余嵌入，基于标点符号冗余嵌入水印，基于公钥机制的零水印。该方法水印容量大、隐蔽性好，能抵抗各种文档操作、破坏及水印攻击，各种攻击实验证明水印的鲁棒性比较强，水印程序具备较好的实用性。
英文摘要：
For the deficiency of watermarking algorithm based on Chinese texts,like bad robustness,a muhiple watermarking method is proprosed for Chinese texts.The method embeds special character scatteringly and redundantly on grouped Chinese characters.The method embeds watermarking redundantly by punctuations.The method embeds Zero-watermarking with PKI.The method has a huge container for watermarking and hides watermarking effectively,so it can against a lot of attacks such as operating or destroing document and watermarking.A lot of attacking experiments have shown that the method has a better watermarking robustness,watermarking program has better practicability.
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