Owner-customer right protection mechanism using a watermarking scheme and a watermarking protocol

Authors:
Tzung-Her Chen;Du-Shiau Tsai
Affiliations:
Department of Computer Science and Information Engineering, National Chiayi University, 300 University Rd., Chia-Yi City, Taiwan 600, ROC;Department of Computer Science, National Chung Hsing University, 250 Kuo-Kuang Rd., Taichung, Taiwan 402, ROC and Department of Information Management, Hsiuping Institute of Technology, 11, Gongye ...
Venue:
Pattern Recognition
Year:
2006

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Abstract

Over the past few years, there have been more and more robust watermarking schemes proposed for copyright protection of digital documents. The authors combine cryptography with watermarking to simultaneously address the problems of protecting the owner's copyright and the legal customer's ownership. The authors propose a robust watermarking scheme based on visual cryptography and a watermarking protocol based on asymmetric cryptography. It is worthwhile to note that the proposed schemes are resistant to counterfeit, collusion, averaging, and copy attacks, while the large majority of robust watermarking schemes are not. Furthermore, the application of digital signature and timestamp makes public verification possible.