Anti-collusion of group-oriented fingerprinting

TitleAnti-collusion of group-oriented fingerprinting
Publication TypeConference Papers
Year of Publication2003
AuthorsWang ZJ, M. Wu, Trappe W, Liu KJR
Conference NameMultimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
Date Published2003/07//
Keywordsanticollusion, attacks;, collusion, communication;, data;, digital, distributed, distribution;, fingerprinting;, fingerprints;, Gaussian, group-oriented, Internet;, method;, modulation;, multimedia, orthogonal, security;, Telecommunication, watermarking;

Digital fingerprinting of multimedia data involves embedding information in the content, and offers protection to the digital rights of the content by allowing illegitimate usage of the content to be identified by authorized parties. One potential threat to fingerprints is collusion, whereby a group of adversaries combine their individual copies in an attempt to remove the underlying fingerprints. Former studies indicate that collusion attacks based on a few dozen independent copies can confound a fingerprinting system that employs orthogonal modulation. However, since an adversary is more likely to collude with some users than other users, we propose a group-based fingerprinting scheme where users likely to collude with each other are assigned correlated fingerprints. We evaluate the performance of our group-based fingerprints by studying the collusion resistance of a fingerprinting system employing Gaussian distributed fingerprints. We compare the results to those of fingerprinting systems employing orthogonal modulation.