Fingerprinting Algorithm for Tracing Colluders

In this paper, we propose a fingerprinting algorithm that is robust to collusion attacks and can trace colluders. To do this, we design the structure of the fingerprinting code and fingerprinting technique based on a watermarking scheme that uses a ´base watermark set´, which composes the information to be embedded. In addition, we propose the structure that colluder trace system can use various fingerprinting algorithm, which is needed to insert many ´base watermarks´ into the contents. We will check the quality of the content after inserting fingerprinting according to the proposed structure. In the experiment, we mainly focused on robustness against collusion attacks and showed that our algorithm was robust to various types of collusion attacks.