Asymptotic fingerprinting capacity in the combined digit model

  • Authors:
  • Dion Boesten;Boris Škorić

  • Affiliations:
  • Eindhoven University of Technology, The Netherlands;Eindhoven University of Technology, The Netherlands

  • Venue:
  • IH'12 Proceedings of the 14th international conference on Information Hiding
  • Year:
  • 2012

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Abstract

We study the channel capacity of q-ary fingerprinting in the limit of large attacker coalitions. We extend known results by considering the Combined Digit Model, an attacker model that captures signal processing attacks such as averaging and noise addition. For q=2 we give results for various attack parameter settings. For q≥3 we present the relevant equations without providing a solution. We show how the channel capacity in the Restricted Digit Model is obtained as a limiting case of the Combined Digit Model.