Integrated fingerprinting in secure digital cinema projection

Delannay, Damien [UCL] Delaigle, J. Macq, Benoît [UCL] Quisquater, Jean-Jacques [UCL] Mas Ribes, J.M. Boucqueau, J.M. Nivart, J. et al.[show all]

This paper describes the functional model of a combined conditional access and fingerprinting copyright (-or projectionright) protection system in a digital cinema framework. In the cinema industry, a large part of early movie piracy comes from copies made in the theater itself with a camera. The evolution towards digital cinema broadcast enables watermark based fingerprinting protection systems. Besides an appropriate fingerprinting technology, a number of well defined security/cryptographic tools are integrated in order to guarantee the integrity of the whole system. The requirements are two-fold: on one side, we must ensure that the media content is only accessible at exhibition time (under specific authorization obtained after an ad-hoc film rental agreement) and contains the related "exhibition fingerprint". At the other end, we must prove our ability to retrieve the fingerprint information from an illegal copy of the media.