A New Method for Webpage Watermarking Base on Empty Styles

Webpage watermarking has important applications in webpage copyright protection and anti-tampering. The existing webpage watermarking methods embed watermark information by using the HTML’s insensitivity to some format changes. Such methods have drawbacks of weak concealment and attack resistance. This paper proposes a new method for webpage watermarking based on the concept of empty styles of HTML. Watermark information is transformed to empty styles and embedded into the HTML code of a webpage. Since the watermark information is closely linked with the HTML code, it has a strong concealment and is not easily detected and attacked. Meanwhile the method provides a large watermark information embedding space. Compared with the existing methods, the presented method has greater advantages.

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