8-9 June 2005

As part of its activity, the Watermarking Virtual Laboratory (Wavila) of the European Network of Excellence ECRYPT, organizes two working days aiming at discussing some of the hottest themes in watermarking security. These working days will take the form of a challenge: two important problems related to watermarking security will be brought to the attention of the watermarking community and thoroughly discussed.

Four types of contributions are foreseen:

• Wavila researchers will introduce the problems and present Wavila’s preliminary results.
• Three key-note speakers not directly involved in Wavila’s activity will give their opinion and present possible solutions to the challenges.
  • Prof. Neri Merhav, Technion - Israel Institute of Technology.
  • Prof. Pierre Moulin, University of Illinois at Urbana-Champaign.
  • Prof. Ahmad-Reza Sadeghi, Ruhr University Bochum.
• Researchers who sent a paper 1 month in advance of the challenge will present their approach to the problems.
• All attendees will have the possibility to take active part in the challenge during the second day, when an open discussion will be held.

All attendees will receive a proceedings volume containing extended abstracts of the talks.

In order to promote a wider attendance, WaCha will be held right after the 7th Information Hiding Workshop ( IH’05, June 6-8, Barcelona) in the same venue. Although registration is required to attend WaCha, no registration fee will be charged.

The problems touched by WaCha‘05 are:

• Counterfeiting geometric attacks: is exhaustive search the ultimate solution?
• Efficient and cryptographically secure fingerprinting.

Instructions for authors

Prospective participants are invited to submit a camera ready paper describing their approach to solve the above problems 1 month in advance of the challenge. Submited papers must follow the LNCS style and should not exceed 15 pages."

Works accepted for contributions to the Wavila Challenge will be published in the proceedings event.

Any questions regarding the program should be directed to the program chairs Fernando Pérez-González (fperez@gts.tsc.uvigo.es), Mauro Barni (barni@dii.unisi.it), Stefan Katzenbeisser (katzenbe@in.tum.de) and Jordi Herrera-Joancomartí (jherreraj@uoc.edu).