10 February 2011 Collusion-secure patchwork embedding for transaction watermarking
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Abstract
Digital transaction watermarking today is a widely accepted mechanism to trace back copyright infringements. Here, copies of a work are individualized by embedding user-specific watermark messages. One major threat on transaction watermarking are collusion attacks. Here, multiple individualized copies of the work are compared and/or combined to attack the integrity or availability of the embedded watermark message. In this work, we show how Patchwork embedding can be adapted to provide a maximum of resistance against collusion attacks at reduced payload and improved robustness.
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Waldemar Berchtold, Waldemar Berchtold, Sascha Zmudzinski, Sascha Zmudzinski, Marcel Schäfer, Marcel Schäfer, Martin Steinebach, Martin Steinebach, "Collusion-secure patchwork embedding for transaction watermarking", Proc. SPIE 7880, Media Watermarking, Security, and Forensics III, 78800V (10 February 2011); doi: 10.1117/12.872584; https://doi.org/10.1117/12.872584
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