关键词: 中文文本, 多重水印, 分组, 零水印, 认证

Abstract: For the deficiency of watermarking algorithm based on Chinese texts，like bad robustness，a multiple 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.

Key words: Chinese texts, multiple watermarking, grouping, zero watermarking, certification