Call for Papers



PKC 2003





Silver Sponsors

Bronze Sponsors

In Kind Sponsors

Sunday, 26-Jan-2003

18:00 - 20:00 Registration

With welcome drinks and nibbles.

Monday, 27-Jan-2003

09:00 - 09:15 Opening remarks

Phong Nguyen, General Co-Chair

09:15 - 10:15 Keynote talk: Digital Cash - ahead of its time or just a bad idea?

Tim Jones (Mondex). Session Chair: Rebecca Wright.
Mondex was an attempt to bring crypto to the masses. Why did it fail? Did it have any successes? What was learned?

10:15 - 10:45 Coffee break

10:45 - 12:45 Micropayments and E-cash

Session Chair: Jacques Stern

Using Trust Management to Support Transferable Hash-Based Micropayments
Simon Foley

A Micro-Payment Scheme Encouraging Collaboration in Multi-Hop Cellular Networks
Markus Jakobsson, Jean-Pierre Hubaux, and Levente Buttyan

On the Anonymity of Fair Off-line e-Cash Systems
Matthieu Gaud and Jacques Traoré

Retrofitting Fairness on the Original RSA-Based E-Cash
Shouhuai Xu and Moti Yung

12:45 - 14:00 Lunch

14:00 - 15:30 Panel: Does anyone really need MicroPayments?

Moderator: Nicko van Someren (nCipher)
Participants: Bob Hettinga (IBUC), Andrew Odlyzko (University of Minnesota) and Ron Rivest (MIT, PepperCoin)
Many cryptographers have tried to develop special technology for transferring tiny amounts of value; the theory being that the computational and/or administrative costs of other payment schemes render them unsuitable for small value transactions. In this panel we will discuss two major questions: firstly are the existing systems really not useful for small values and secondly might other models such as flat rate or subscription systems be more suitable anyway, and be possible without the need for small payments?

Tuesday, 28-Jan-2003

09:00 - 10:30 Security, Anonymity, and Privacy

Session Chair: Gene Tsudik

On the Economics of Anonymity
Alessandro Acquisti, Roger Dingledine, and Paul Syverson

Squealing Euros: Privacy Protection in RFID-Enabled Banknotes
Ari Juels and Ravikanth Pappu

How Much Security is Enough to Stop a Thief?
Stuart Schechter and Michael Smith

10:30 - 11:00 Coffee break

11:00 - 12:30 Attacks

Session Chair: Andrew Odlyzko

Cryptanalysis of the OTM signature scheme from FC'02
Jacques Stern and Julien Stern

"Man in the Middle" Attacks on Bluetooth
Dennis Kügler

Fault based cryptanalysis of the Advanced Encryption Standard (AES)
Johannes Blömer and Jean-Pierre Seifert

12:30 - 14:00 Lunch

14:00 - 15:30 Panel: Economics of Security

Moderator: L. Jean Camp
Participants: Drew Dean (SRI), Andrew Odlyzko (University of Minnesota) and Stuart Schechter (Harvard)
Do we spend enough on electronic security? How can we judge when we are spending too much? Is there any way to evaluate expenditure? Is the value of cryptography subject to economic measurement?

20:00 - 21:00 IFCA General Meeting

21:00 - 23:00 Rump Session

Rump Session Chair: Juan Garay
With drinks and nibbles.

Wednesday, 29-Jan-2003

09:00 - 10:00 Keynote talk: Listening In on the UN: Technology Lessons from the Diplomats

Richard Field (U.S. Delegate, UNCITRAL E-Commerce Working Group; Secretary, Am. Bar Assoc. Section of Science & Technology Law). Session Chair: Jean Camp.
Abstract: Enabling rules on electronic signatures and records, international registry systems and electronic documents of title have all been the topics of recent international negotiation--at the U.N., the Hague Conference, UNIDROIT and other international diplomatic bodies. This talk will look at recent successes, failures and ongoing global harmonization work that have a direct bearing on the development of payment and financial systems.

10:00 - 10:30 Coffee Break

10:30 - 11:30 Fair Exchange

Session Chair: Ari Juels

Timed Fair Exchange of Standard Signatures
Juan Garay and Carl Pomerance

Asynchronous Optimistic Fair Exchange Based on Revocable Items
Holger Vogt

11:30 - 12:30 Auctions

Session chair: Ari Juels

Fully Private Auctions in a Constant Number of Rounds
Felix Brandt

Secure Generalized Vickrey Auction using Homomorphic Encryption
Koutarou Suzuki and Makoto Yokoo

12:30 - 14:00 Lunch

19:00 - 21:00 Conference dinner

Lobster dinner - Diner Langouste.

Thursday, 30-Jan-2003

09:00 - 10:30 Panel: Trusted Computing Platforms: The Good, The Bad and The Ugly

Moderator: Moti Yung
TCPA and Palladium "trusted platform" activities have raised many questions and objections. In this panel, we will confront the proponent and opponents of these ideas and raise more awareness regarding ways of use and abuse of these ideas.

10:30 - 11:00 Coffee Break

11:00 - 12:30 Cryptographic Tools and Primitives

Session Chair: Benny Pinkas

On The Computation-Storage Trade-offs of Hash Chain Traversal
Yaron Sella

Verifiable Secret Sharing for General Access Structures, with Application to Fully Distributed Proxy Signatures
Javier Herranz and Germán Sáez

Non-interactive Zero-Sharing with Applications to Private Distributed Decision Making
Aggelos Kiayias and Moti Yung

12:30 - 12:45 Closing Remarks

Phong Nguyen, General Co-Chair

12:45 - 14:00 Lunch