TY - GEN
T1 - Collusion-resistant fingerprinting scheme based on the CDMA-technique
AU - Hayashi, Naoki
AU - Kuribayashi, Minoru
AU - Morii, Masakatu
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Digital fingerprinting is a scheme to insert user's own ID information into digital contents in order to identify illegal users who distribute unauthorized copy. One of the important problems is a collusion attack such that several users combine their copies of a same content to modify /delete the embedded fingerprint. In this paper, we propose a collusion-resilient fingerprinting scheme based on the CDMA technique. By combining spread spectrum sequence with orthogonal transform, we allocate the combination of spectrum components to users as their fingerprints. At a detector side, a threshold for the detection of colluded users is determined considering the false positive probability. We then estimate the parameters in the scheme for both optimal embedding and detection, and improve the accuracy of the detection of colluders. Experimental results show the effectiveness of proposed scheme.
AB - Digital fingerprinting is a scheme to insert user's own ID information into digital contents in order to identify illegal users who distribute unauthorized copy. One of the important problems is a collusion attack such that several users combine their copies of a same content to modify /delete the embedded fingerprint. In this paper, we propose a collusion-resilient fingerprinting scheme based on the CDMA technique. By combining spread spectrum sequence with orthogonal transform, we allocate the combination of spectrum components to users as their fingerprints. At a detector side, a threshold for the detection of colluded users is determined considering the false positive probability. We then estimate the parameters in the scheme for both optimal embedding and detection, and improve the accuracy of the detection of colluders. Experimental results show the effectiveness of proposed scheme.
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U2 - 10.1007/978-3-540-75651-4_3
DO - 10.1007/978-3-540-75651-4_3
M3 - Conference contribution
AN - SCOPUS:38349014901
SN - 9783540756507
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 28
EP - 43
BT - Advances in Information and Computer Security - Second International Workshop on Security, IWSEC 2007, Proceedings
PB - Springer Verlag
T2 - 2nd International Workshop on Security, IWSEC 2007
Y2 - 29 October 2007 through 31 October 2007
ER -