An improved collusion-secure digital ringerprinting scheme for digital video
Lai Wei Jiang · 2004
Embedding unique customer identification as a watermark into multimedia data is called digital fingerprinting, which makes it possible to trace the illegal usages of pirates. The serious problem in digital fingerprinting is collusion attack. In this paper, an improved scheme is proposed based on Dittmanns collusion-secure digital fingerprinting for digital images. This proposed scheme reduces the dependence on mass marking positions, which guarantees the ability of collusion-secure in Dittmanns algorithm. Therefore the capacity of possible copies is increased significantly to the level of practical application. The experiments show that this proposed scheme is practical.