An implementation of a technology is described herein that facilitates rights enforcement of digital goods using watermarks. More particularly, it is a fingerprinting technology for protecting digital goods by detecting collusion as a malicious attack and identifying the participating colluders. If a...http://www.google.nl/patents/US7047413?utm_source=gb-gplus-sharePatent US7047413 - Collusion-resistant watermarking and fingerprinting
Collusion-resistant watermarking and fingerprinting
