André Adelsbach, Stefan Katzenbeisser, Helmut Veith. Watermarking schemes provably secure against copy and ambiguity attacks. In Moti Yung, editor, Proceedings of the 2003 ACM workshop on Digital rights management 2003, Washington, DC, USA, October 27, 2003. pages 111-119, ACM, 2003. [doi]
Abstract is missing.