Anti-tampering technology of digital watermarking in dynamic web page images

A watermark is a concealed message inside host digital data that can be used effectively for rights protection and integrity verification of digital contents. While there is a long history of using watermark for multimedia contents, it faces serious challenges when it comes to relational or XML data. In this paper, we present a study as well as analysis and solutions based on the use of watermarking for relational/XML data copyright protection and integrity verification. The paper explores in depth the previous efforts in this domain. Problems are identified and then formulated as research questions. Three major issues are addressed in this paper, which include rights protection of relational data, integrity verification of relational data, and XML document security.