文章基本信息

标题：A Novel Watermark Algorithm for Integrity Protection of XML Documents
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作者：Ronghua Yao ; Qijun Zhao ; Hongtao Lu 等
期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2006
卷号：6
期号：2B
页码：202-202~207
出版社：International Journal of Computer Science and Network Security
摘要：With the fast development of Extensible Markup Language (XML) and its comprehensive application, the integrity protection of XML documents is becoming pressing. A traditional method for this is digital signature. In this paper, however, based on watermark techniques, we propose a novel solution to the integrity protection of XML documents. In this scheme, watermarks are generated through applying Principal Component Analysis (PCA) on a matrix constructed from an XML document and a key. Then they are embedded into the XML document by altering the case of letters in the XML tags according to the Exclusive OR (XOR) results of the XML document and watermarks. To testify the integrity of a watermarked XML document, watermarks are generated again and the original document can be exactly retrieved from the XOR results of these watermarks and the watermarked document only if it is not tampered; otherwise, the retrieved document will be an illegal XML document. Compared with existing signature methods, this scheme is excellent in its simplicity and economy of storage and channel bandwidth. Experimental results also demonstrate that our proposed watermarking scheme is less time-consuming than the traditional signature methods.
关键词：Extensible Markup Language (XML), Integrity Protection, Watermark, Signature, Principal Component Analysis (PCA)