Optimal probabilistic fingerprint codes
Proceedings of the thirty-fifth annual ACM symposium on Theory of computing
Symmetric Tardos fingerprinting codes for arbitrary alphabet sizes
Designs, Codes and Cryptography
Improved versions of Tardos' fingerprinting scheme
Designs, Codes and Cryptography
High rate fingerprinting codes and the fingerprinting capacity
SODA '09 Proceedings of the twentieth Annual ACM-SIAM Symposium on Discrete Algorithms
An improvement of discrete Tardos fingerprinting codes
Designs, Codes and Cryptography
Saddle-point solution of the fingerprinting capacity game under the marking assumption
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
Tardos Fingerprinting is Better Than We Thought
IEEE Transactions on Information Theory
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For the Tardos traitor tracing scheme, we show that by combining the symbol-symmetric accusation function of 驴korić et al. with the improved analysis of Blayer and Tassa we get further improvements. Our construction gives codes that are up to four times shorter than Blayer and Tassa's, and up to two times shorter than the codes from 驴korić et al. Asymptotically, we achieve the theoretical optimal codelength for Tardos' distribution function and the symmetric score function. For large coalitions, our codelengths are asymptotically about 4.93% of Tardos' original codelengths, which also improves upon results from Nuida et al.