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We study a fingerprinting game in which the number of colluders and the collusion channel are unknown. The encoder embeds fingerprints into a host sequence and provides the decoder with the capability to trace back pirated copies to the colluders. Fingerprinting capacity has recently been derived as the limit value of a sequence of maximin games with mutual information as their payoff functions. However,...
We study randomized fingerprinting codes that achieve the fundamental capacity limits subject to the so-called Boneh-Shaw marking assumption. Two decoding schemes are studied in particular: the joint decoder is capacity-achieving but computationally intense, while the simple decoder is suboptimal but efficient. We provide tight bounds as well as numerical results for capacities and study the difference...
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