10 February 2011 Collusion-secure patchwork embedding for transaction watermarking
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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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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