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Proceedings Paper

Collusion-secure patchwork embedding for transaction watermarking
Author(s): Waldemar Berchtold; Sascha Zmudzinski; Marcel Schäfer; Martin Steinebach
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Paper 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.

Paper Details

Date Published: 10 February 2011
PDF: 9 pages
Proc. SPIE 7880, Media Watermarking, Security, and Forensics III, 78800V (10 February 2011); doi: 10.1117/12.872584
Show Author Affiliations
Waldemar Berchtold, Fraunhofer Institute for Secure Information Technology (Germany)
Sascha Zmudzinski, Fraunhofer Institute for Secure Information Technology (Germany)
Marcel Schäfer, Fraunhofer Institute for Secure Information Technology (Germany)
Martin Steinebach, Fraunhofer Institute for Secure Information Technology (Germany)


Published in SPIE Proceedings Vol. 7880:
Media Watermarking, Security, and Forensics III
Nasir D. Memon; Jana Dittmann; Adnan M. Alattar; Edward J. Delp, Editor(s)

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