Security and privacy problems in computer networks and mobile applications often stem from the 
interaction between agents of the network (which can be individuals as well as devices or 
softwares acting autonomously). Modeling the interaction between agents is therefore essential 
to address security problems appropriately. Game theory and logic are the most prominent 
frameworks for the formal treatment of interaction. They permit not only to model and represent 
this interaction between agents, but they also lead to the development of applicable algorithms 
and decision procedures. In the past two decades, a number of logical frameworks and game-theoretic
approaches have been proposed to model and analyze computer networks from the security point of 
view, sometimes resorting to non-classical logics (such as epistemic or intuitionistic logics).

The main goal of this workshop is to gather researchers interested in games, logic and security 
(in a broad sense), and to offer a privileged forum to present their work and exchange ideas on 
these topics.

The following invited tutorials are scheduled:

- Gilles Barthe, IMDEA Software Institute Research, Madrid Probabilistic Reasoning about Differential Privacy

- Anne Broadbent, Institute for Quantum Computing & Department of Combinatorics and Optimization, 
University of Waterloo Quantum Nonlocal Games and Cryptography

- Jean-Pierre Hubaux, EPFL Lausanne
Designing Network Security and Privacy Mechanisms: How Game Theory Can Help

- Mark Ryan, University of Birmingham Verifying Real-Life Protocols: Theory and Two Cases

- Moshe Vardi, Department of Computer Science, Rice University The Rise and Fall of LTL

Apart from the invited talks, participants have the opportunity to give short talks (approximately 
20 minutes). Selection will be made on the basis of an extended abstract of at most 2 pages.

The registration is free but mandatory. Lunches are included in the registration.

Important dates:
- Submission deadline: 9th October 2011
- Notification to authors: 11th October 2011
- Deadline for registration: 13th October 2011
- Workshop: 25th-27th October 2011

We will be able to cover part of travel and accommodation costs for a limited number of participants
(especially students). For information, please contact us at gipsy2011@listes.irisa.fr by the 9th 
of October 2011.

Scientific committee:
- Guillaume Aucher (Université de Rennes 1 - INRIA)
- Nathalie Bertrand (INRIA Rennes)
- Sébastien Gambs (Université de Rennes 1 - INRIA)
- Sophie Pinchinat (Université de Rennes 1)

Local organization:
- Laurence Dinh
- Lydie Mabil
- Bastien Maubert

All important informations are available at www.irisa.fr/prive/Sophie.Pinchinat/GIPSy/gipsy11.html.