International workshop on

              ELECTRONIC COMMERCE and SECURITY

         http://www.wi-inf.uni-essen.de/~dexa99ws/ 

                  in conjunction with the
             Tenth International Conference on
     Database and Expert Systems Applications (DEXA'99)
             http://www.ifs.tuwien.ac.at/dexa99 

   to be held in Florence, Italy, Aug. 30 - Sept. 3, 1999

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              W O R K S H O P    P R O G R A M
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Thursday, Septemper 2, 1999

09:00 - 10:00am Workshop opening, invited talk
============================================================
Workshop opening: Guenther Pernul
                  University of Essen, Germany

Invited talk: Rolf Oppliger, PhD
              Shaping the Research Agenda for Security
              in Electronic Commerce
              Swiss Federal Office of IT and Systems (BFI)
              and University of Zurich

10:00 - 10:30am Role of IT-Security
============================================================
IT-Security in Electronic Commerce: From Cost to Value
Driver
Ralph Holbein (1), Thomas Gaugler (2)
(1) Schweizerische Effekten Giro AG, (2) University of
Zurich

11:00 - 12:30pm Applications of Business Transactions
============================================================
The Management of Business Transactions through Electronic
Contracts
Bernd Schopp, Alexander Runge
University of St. Gallen

A Secure Payment System for Electronic Commerce
Ioannis Mavridis (1), G. Pangalos (1), S. Muftic (2)
(1) Aristotle University of Thessaloniki
(2) Stockholm University

Coordination between security levels for Internet
architectures
Eduardo B. Fernandez
Florida Atlantic University

14:00 - 15:30pm Electronic Commerce Protocols
============================================================
Batching Proofs of Knowledge and its Applications
Khanh Quoc Nguyen, Vijay Varadharajan, Yi Mu
University of Western Sydney

Efficient Detection of Failure Modes in Electronic Commerce
Protocols
Sigrid Gnrgens (1), Javier Lopez-Munoz (2), Rene Peralta (3)
(1) GMD Darmstadt, (2) Universidad de Malaga
(3) University of Wisconsin

Multi-Party Fair Exchange with an Off-Line Trusted Neutral
Party
Vijay Varadharajan
University of Western Sydney

16:00 - 17:30pm Security Services
============================================================
Non-repudiation in An Agent-Based E-Commerce System
C.-C. Liew W.-K. Ng E.-P. Lim B.-S. Tan K.-L. Ong
Nanyang Technological University, Singapore

Controlling the Dissemination of Electronic Documents
Vassilis Prevelakis (1), Dimitri Konstantas (2),
(2) Jean-Henry Morin
(1) University of Piraeus, (2) University of Geneva

NIGE Log - A method of protecting logging information
which takes account of its deletion
Tetsuji Takada, Hideki Koike
Tokyo University of Electro-Communications


For further details see
http://www.wi-inf.uni-essen.de/~dexa99ws/ 
DEXA'99 conference URL is:
http://www.ifs.tuwien.ac.at/dexa99 
For information on the last year DEXA98 security workshop
see:
http://www.wi-inf.uni-essen.de/~dexa98ws/