Cryptology ePrint Archive: Report 2012/184
Asymptotic fingerprinting capacity in the Combined Digit Model
Dion Boesten and Boris Skoric
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
For $q=2$ we give results for various attack parameter settings.
For $q\geq 3$ 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.
Category / Keywords: watermarking, collusion, fingerprinting
Date: received 5 Apr 2012, last revised 16 Apr 2012
Contact author: b skoric at tue nl
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Version: 20120416:131032 (All versions of this report)
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