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10 February 2011 Collusion-secure patchwork embedding for transaction watermarking
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Proceedings Volume 7880, Media Watermarking, Security, and Forensics III; 78800V (2011)
Event: IS&T/SPIE Electronic Imaging, 2011, San Francisco Airport, California, United States
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, Sascha Zmudzinski, Marcel Schäfer, and Martin Steinebach "Collusion-secure patchwork embedding for transaction watermarking", Proc. SPIE 7880, Media Watermarking, Security, and Forensics III, 78800V (10 February 2011);


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