| Paper: | MMSP-L2.6 | ||
| Session: | Multimedia Security and Content Protection | ||
| Time: | Thursday, May 18, 15:40 - 16:00 | ||
| Presentation: | Lecture | ||
| Topic: | Multimedia Signal Processing: Multimedia security and content protection | ||
| Title: | On Optimal Collusion Strategies for Fingerprinting | ||
| Authors: | Negar Kiyavash, Pierre Moulin, University of Illinois at Urbana-Champaign, United States | ||
| Abstract: | We study the theoretical performance of linear and nonlinear collusion attacks under the assumptions that orthogonal or regular-simplex fingerprints are used, and that the detector performs a linear correlation test in order to decide whether a user of interest is among the colluders. The colluders create a noise-free forgery by applying a mapping $f$ to their individual copies, and then add a noise sequence $\be$ to form the actual forgery. They seek the mapping $f$ and the distribution of $\be$ that maximize the probability of error of the detector. The performance of linear-averaging and interleaving attacks can be compared in this framework. It is also shown that impulsive noise attacks are far more effective than Gaussian attacks. | ||
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