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Voice Based Watermarking Technique for Relational Databases

This paper is about the technique of watermarking relational databases for unauthorized access. Signals of voice are introduced as watermark to be embedded into the relations; associated novel watermark insertion algorithm and detection algorithm are proposed. Detecting the watermark neither requires access to the original data nor the watermark. Thus, the watermark signal in this method is expected to be more meaningful and has closer correlative to the unauthorized user. The proposed technique is feasible, and robust against various forms of malicious attacks.