TY - GEN
T1 - Bias equalizer for binary probabilistic fingerprinting codes
AU - Kuribayashi, Minoru
PY - 2013
Y1 - 2013
N2 - In binary probabilistic fingerprinting codes, the number of symbols "0" and "1" is generally balanced because of the design of the codeword. After a collusion attack, the balance of symbols is not always assured in a pirated codeword. It is reported in [8] that if the number of symbols in a pirated codeword is unbalanced, then a tracing algorithm can be improved by equalizing the unbalanced symbols. In this study, such a bias equalizer is customized for probabilistic fingerprinting codes utilizing the encoding parameters. Although the proposed bias equalizer is highly dependent on collusion strategies, it can improve the performance of traceability for some typical strategies to which the conventional bias equalizer can not be applied.
AB - In binary probabilistic fingerprinting codes, the number of symbols "0" and "1" is generally balanced because of the design of the codeword. After a collusion attack, the balance of symbols is not always assured in a pirated codeword. It is reported in [8] that if the number of symbols in a pirated codeword is unbalanced, then a tracing algorithm can be improved by equalizing the unbalanced symbols. In this study, such a bias equalizer is customized for probabilistic fingerprinting codes utilizing the encoding parameters. Although the proposed bias equalizer is highly dependent on collusion strategies, it can improve the performance of traceability for some typical strategies to which the conventional bias equalizer can not be applied.
UR - http://www.scopus.com/inward/record.url?scp=84874427694&partnerID=8YFLogxK
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U2 - 10.1007/978-3-642-36373-3_18
DO - 10.1007/978-3-642-36373-3_18
M3 - Conference contribution
AN - SCOPUS:84874427694
SN - 9783642363726
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 269
EP - 283
BT - Information Hiding - 14th International Conference, IH 2012, Revised Selected Papers
T2 - 14th International Conference on Information Hiding, IH 2012
Y2 - 15 May 2012 through 18 May 2012
ER -