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PET 2005 will meet in Dubrovnik, Croatia, May 30 - June 1, 2005.
Follow this link for details on PET 2005.

Congratulations to the 2004 PET Award winners! 


 Workshop on Privacy Enhancing Technologies

Toronto, Canada      26 - 28 May  2004

Privacy and anonymity are increasingly important in the online world. Corporations and governments are starting to realize their power to track users and their behavior, and restrict the ability to publish or retrieve documents. Approaches to protecting individuals, groups, and even companies and governments from such profiling and censorship have included decentralization, encryption, and distributed trust.

Building on the success of the first three workshops (held in Berkeley in July 2000, San Francisco in April 2002, and Dresden in March 2003), this fourth workshop addresses the design and realization of such privacy and anti-censorship services for the Internet and other communication networks. These workshops bring together anonymity and privacy experts from around the world to discuss recent advances and new perspectives.

The workshop seeks submissions from academia and industry presenting novel research on all theoretical and practical aspects of privacy technologies, as well as experimental studies of fielded systems. We encourage submissions from other communities such as law and business that present their perspectives on technological issues. As in past years, we will publish proceedings after the workshop in the Springer Lecture Notes in Computer Science series.  NEW: our current working agreement is that individual authors will retain copyright on their own works while assigning an exclusive 3-year distribution license to Springer.  (Authors may still post their papers on their own Web sites.)

This year's workshop immediately follows the 6th Information Hiding Workshop, and is hosted at the same site.


Limited stipends will be available to assist students and others in similar financial circumstances. See the stipends page for the details.


  Regular rate Student rate

Special one-day registration
(see explanation below)

Before May 8 $716.90 CDN $390.55 CDN

$100.00 CDN

On or after May 8 $823.90 CDN $497.55 CDN

$125.00 CDN

The full registration fee includes pre-proceedings, post-proceedings, continental breakfast, lunch and breaks each day plus a welcome reception on May 25 and dinner at the CN Tower ("the World's tallest building") on May 27.

 To register for the PET Workshop, submit this registration form.

Special one-day registrations: In order to encourage crossover between the 6th Information Hiding Workshop and the PET Workshop, a special one-day rate is available for full registrants of one workshop who wish to attend the "border day" of the other workshop.  This fee includes that day's sessions (only) along with the continental breakfast, lunch and breaks for that day.

Registration is by email, fax, or snail mail. 

Venue and Hotel

We will be holding the workshop at the Radisson Plaza Hotel Admiral at the harbourfront -- the same facility that the Information Hiding Workshop is using.

A special room rate of $165 CAD/night has been arranged at the Toronto Radisson Admiral Hotel for PET 2004 registrants, for the dates May 25-28 (checking out on May 29).  To reserve a room on-line see the PET hotel reservation page. If you're staying additional nights, then you'll have to book a reservation for those nights separately, since the hotel promotion code "PET" limits the reservation to May 25-28 in the online service.  It might be easiest to arrange your stay on the telephone if your dates don't fall neatly within the promotional dates.

You may also contact the hotel directly at (416) 203-3333. Be sure to provide the promotional code "PET" to ensure that you receive the special rate. Radisson Hotels offer toll-free numbers world-wide. Click here to find the toll-free number in your country.

Sign up on this wiki if you need help finding a roommate.


Airport information is available from the Greater Toronto Airports Authority.  If you're the sort who uses Expedia or Orbitz, also check AirCanada directly, since they sometimes have cheaper flights that aren't listed on the main search sites.

Airport Express buses run every 20-30 minutes departing Pearson Airport from 5 am to 1 am. The nearest stops to the Radisson Admiral are the Westin Harbour Castle Hotel and the Royal York Hotel. The Radisson Admiral would be a short (5-10 minute) taxi or streetcar ride from either location. Depending on the time of day and the capacity of the bus, the driver may be able to stop at the Radisson so it's worth inquiring when you board. Airport Express buses are $15 one way, $26 return. Taxis are approximately $39 from the airport to the Radisson Admiral and Airport Limousines are currently $43 for this trip.


See the preliminary program for more information.

Tuesday (25 May) Welcome Reception: at the hotel.
Workshop and dinner at the CN Tower
Saturday Hiking
: Last year's hike in the Sächsische Schweiz was very popular.  On Saturday May 29 those who are interested may participate in a guided hike of the Niagara Escarpment, a UNESCO biosphere reserve. Depending on the number of registrants, transportation to the site may depend on volunteer drivers. The estimated cost is $30-$35 cash/person, payable on the first day of the workshop.  An announcement will be made on the first day of the workshop.  Contact George Danezis (email firstname.lastname at for details and to pay in cash.  Remember to bring walking shoes and waterproof clothing!

Important Dates for Authors

Paper submission: 

26 January 2004 23:59 EST  
Notification of acceptance:  5 April 2004
Camera-ready copy for preproceedings:   3 May 2004
Reduced registration fee deadline 8 May 2004
Workshop 26-28 May 2004
Camera-ready copy for proceedings:   28 June 2004
Nomination period for PET award: February 20, 2003 - March 3, 2004


General Chair:
Richard Owens (, University of Toronto, CA

Program Chairs:
David Martin (, University of Massachusetts at Lowell, USA
Andrei Serjantov (, University of Cambridge, UK

Program Committee:
Alessandro Acquisti, Heinz School, Carnegie Mellon University, USA
Caspar Bowden, Microsoft EMEA, England
Jean Camp, Kennedy School, Harvard University, USA
Richard Clayton, University of Cambridge, England
Lorrie Cranor, School of Computer Science, Carnegie Mellon University, USA
George Danezis, University of Cambridge, England
Roger Dingledine, The Free Haven Project, USA
Hannes Federrath, Universität Regensburg, Germany
Ian Goldberg, Zero Knowledge Systems, Canada
Philippe Golle, Palo Alto Research Center, USA
Marit Hansen, Independent Centre for Privacy Protection Schleswig-Holstein, Germany
Markus Jakobsson, RSA Laboratories, USA
Dogan Kesdogan, Rheinisch-Westfälische Technische Hochschule Aachen, Germany
Brian Levine, University of Massachusetts at Amherst, USA
David Martin, University of Massachusetts at Lowell, USA (program co-chair)
Andreas Pfitzmann, Dresden University of Technology, Germany
Matthias Schunter, IBM Zurich Research Lab, Switzerland
Andrei Serjantov, University of Cambridge, England (program co-chair)
Adam Shostack, Informed Security Inc., Canada
Paul Syverson, Naval Research Lab, USA