1 - Introduction aux méthodes de tatouage asymétriques dans le cadre de la protection de copie

The concept of asymmetric watermarking schemes is introduced in the framework of copy protection. While the targeted application is detailed, we focus on the role of the watermarking tool in the global copy protection system. A threat analysis underlies the attacks pirates will likely proceed. The estimated complexity of these attacks is the security level that the watermarking technique provides to the the global system. In the copy protection framework, classical spread spectrum techniques are not secure enough. This is the reason why we introduced the concept of asymmetric schemes.