A Lightweight Buyer-Seller Watermarking Protocol

<table>Identifying the malicious buyer by the WCA.
The WCA traces the traitor with the watermark <math id="M222" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi mathvariant="bold">W</mi></mrow></math> according to (<a href="https://static.hindawi.com/articles/am/volume-2008/905065/figures/#eq3">4</a>).</table>

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Figure 5

Figure 5: A Lightweight Buyer-Seller Watermarking Protocol 