%0 Conference Paper %B Third Wavila Challenge (WaCha) %D 2007 %T Disclosing secrets in watermarking and data hiding %A Luis Pérez-Freire %A Fernando Pérez-González %K data-hiding %K security %K watermarking %B Third Wavila Challenge (WaCha) %S ECRYPT proceedings series from the Otto-von-Guericke University, Magdeburg, Germany %C Saint-Malo, France %8 14 June %G eng