A new buyer-seller watermarking protocol without double embedding |
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| Authors: | Peng Zeng Zhen-fu Cao Huang Lin |
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| Institution: | [1]Department of Computer Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China [2]Shanghai Key Laboratory of Trustworthy Computing, East China Normal University, Shanghai 200062, China |
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| Abstract: | Copy deterrence is a digital watermarking application which enables a seller to identify the buyers who obtain digital content legally but illegally redistribute it. However, in many buyer-seller watermarking protocols proposed for copy deterrence, the seller has to embed two watermarks into each copy of the digital content before it is sold. In this paper, we propose a new buyer-seller watermarking protocol in which the seller can reduce the number of the embedded watermarks from two to one. The proposed protocol also provides a more efficient solution to the unbinding problem than that of Lei et al’s scheme. |
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