%0 Conference Paper
%B Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
%D 2003
%T Resistance of orthogonal Gaussian fingerprints to collusion attacks
%A Wang,Z.J.
%A M. Wu
%A Zhao,Hong
%A Liu,K. J.R
%A Trappe,W.
%K approach;
%K attacks;
%K capability;
%K collusion
%K data
%K data;
%K digital
%K distributed
%K embedded
%K fingerprinting;
%K fingerprints;
%K Gaussian
%K likelihood-based
%K modulation;
%K multimedia
%K of
%K orthogonal
%K probability;
%K processes;
%K protection;
%K Security
%K systems;
%K tracing
%X Digital fingerprinting is a means to offer protection to digital data by which fingerprints embedded in the multimedia are capable of identifying unauthorized use of digital content. A powerful attack that can be employed to reduce this tracing capability is collusion. In this paper, we study the collusion resistance of a fingerprinting system employing Gaussian distributed fingerprints and orthogonal modulation. We propose a likelihood-based approach to estimate the number of colluders, and introduce the thresholding detector for colluder identification. We first analyze the collusion resistance of a system to the average attack by considering the probability of a false negative and the probability of a false positive when identifying colluders. Lower and upper bounds for the maximum number of colluders K_{max} are derived. We then show that the detectors are robust to different attacks. We further study different sets of performance criteria.
%B Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
%V 1
%P I - 617-20 vol.1 - I - 617-20 vol.1
%8 2003/07//
%G eng
%R 10.1109/ICME.2003.1220993