Traitor Tracing Against Powerful Attacks Using Combinatorial Designs
Simon McNicol, Serdar Boztaş, Asha Rao · 2006
This paper addresses the problem of threshold traitor tracing for digital content where, by embedding appropriate digital patterns into the dis-tributed content, it is possible to trace and identify the source of unau-thorised redistribution. We use a set of marking assumptions where the adversaries have varying powers change or erase coordinates of the fingerprint where their individ-ual fingerprints differ–and consider the implications. We consider codes derived from combinatorial designs–and develop a method for concatenating the block design code to filter out the false positives and defend against some of the attacks considered.