Performance Study of Ecc-based Collusion-resistant Multimedia Fingerprinting

Digital fingerprinting is a tool to protect multimedia content from illegal redistribution by uniquely marking copies of the content distributed to each user. Fingerprinting based on error correction coding (ECC) handle the important issue of how to embed the fingerprint into host data in an abstract way known as the marking assumptions, which often do not fully account for multimedia specific issues. In this paper, we examine the performance of ECC based fingerprinting by considering both coding and embedding issues. We provide performance comparison of ECC-based scheme and a major alternative of orthogonal fingerprinting. As averaging is a feasible and cost-effective collusion attack against multimedia fingerprints yet is generally not considered in the ECC-based system, we also investigate the resistance against averaging collusion and identify avenues for improving collusion resistance.