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Proceedings Paper

Countermeasure for collusion attacks against digital watermarking
Author(s): Martin Steinebach; Sascha Zmudzinski
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Paper Abstract

Customer identification watermarking today is one of the most promising application domains of digital watermarking. It enables to identify individual copies of otherwise indistinguishable digital copies. If done without any precautions, those individual watermarking are vulnerable to a number of specialized attacks based on an attacker collecting more than one individual copy. Fingerprinting algorithms are used to create watermarks robust against these attacks, but the resulting watermarks require a high payload of the watermarking algorithm. As soon as a large number of copies need to be distinguished and more than two copies are available to the attacker, the watermarks are too long to be embedded with current algorithms. We present a novel alternative method to fight attacks aimed at individual customer identification watermarks. This is achieved by modifying the watermarked material in a way collusion attacks produce artifacts which significantly reduce the perceived quality while they do not affect the quality of the individual copies.

Paper Details

Date Published: 15 February 2006
PDF: 9 pages
Proc. SPIE 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII, 60720D (15 February 2006); doi: 10.1117/12.642189
Show Author Affiliations
Martin Steinebach, Fraunhofer Integrated Publication and Information Systems Institute (Germany)
Sascha Zmudzinski, Fraunhofer Integrated Publication and Information Systems Institute (Germany)


Published in SPIE Proceedings Vol. 6072:
Security, Steganography, and Watermarking of Multimedia Contents VIII
Edward J. Delp III; Ping Wah Wong, Editor(s)

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