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A robust zero-watermarking algorithm for copyright protection of text documents

机译：强大的零水印算法，可保护文本文档的版权

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摘要

The widespread use of Internet and other communication technologies has brought about ease in reproducing, disclosing and distributing digital content. In addition to getting the benefits of information exchange, the digital community is confronted with authentication, forgery and copyright protection issues. Text is the most frequently used medium travelling over the Internet, along with images, audio and video. Majority of the content of books, newspapers, web pages, advertisements, research papers, legal documents and many other documents is basically, plain text. Therefore, copyright protection of plain text is a most important issue. In this article, we propose a robust zero-watermarking algorithm based on prepositions and double letters for copyright protection of plain text. The embedding algorithm uses occurrences of prepositions and double letters in the text to generate a key based on watermark. The extraction algorithm extracts the watermark from the noisy text to identify the original owner. Experimental results illustrate the effectiveness of the proposed algorithm on text encountering combined insertion, deletion and re-ordering attacks, both in the dispersed and localized forms. The results are also compared to a recent work on text watermarking.
机译：互联网和其他通信技术的广泛使用使复制，公开和分发数字内容变得容易。除了获得信息交换的好处之外，数字社区还面临认证，伪造和版权保护问题。文本是图像，音频和视频以及通过Internet传播的最常用的媒介。书籍，报纸，网页，广告，研究论文，法律文件和许多其他文件的内容基本上都是纯文本。因此，纯文本的版权保护是最重要的问题。在本文中，我们提出了一种基于介词和双字母的健壮的零水印算法，用于保护纯文本。嵌入算法使用文本中介词和双字母的出现来生成基于水印的密钥。提取算法从嘈杂的文本中提取水印以标识原始所有者。实验结果说明了该算法在文本遇到组合的插入，删除和重新排序攻击时的有效性，无论是分散形式还是局部形式。还将结果与文本水印的最新工作进行了比较。

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