An Overview on Anti-Collusion Digital Fingerprint
抗共谋数字指纹研究综述

Digital rights protection has become an important issue as the development of the Internet and multimedia technologies. It is easy for a group of users to work together and collectively mount attacks against the fingerprints or the tracing information. Collusion attack provides a cost-effective method for attenuating each of the colluder's watermarks. In this article, we review some major design methodologies for anti-collusion fingerprint of multimedia, give a broad overview of the recent advances in this area, and discuss the future of anti-collusion methods.