Abstract

The goal of the ACTS Project SEMPER (Secure Electronic Marketplace for Europe) is to provide the first open and comprehensive solution for secure commerce over the Internet and other public information networks. The basic framework described in an earlier article [M. Schunter, M. Waidner, Architecture and design of a secure electronic marketplace, Joint European Networking Conference (JENC8), Edinburgh, June 1997, pp. 712.1–712.5] has now been implemented in the Java programming language. It includes the payment systems SET, Chipper, and ecash™. The prototype uses a distinguished user-interface for trustworthy user in- and output which enables to use SEMPER on secure hardware. This article describes recent refinements to the SEMPER Framework as well as experiences gained in the field trials of the SEMPER software.

Author Keywords: Electronic commerce; Framework; SEMPER; Fair exchange

Article Outline

1. Introduction

1.1. Roles and services in the marketplace

1.2. What is new in SEMPER?

1.3. Recent changes

2. Model for electronic commerce

2.1. Atomic actions: exchanges

2.2. Electronic commerce: sequence of exchanges

3. The SEMPER framework

3.1. Integration into the World-Wide Web

3.2. Commerce services

3.3. Exchange services

3.4. Transfer service

3.5. Supporting services

4. Recent updates to the framework

4.1. A generic fair exchange protocol

4.2. Anonymity and anonymous communication

5. The SEMPER trials

5.1. Internal SEMPER trials

5.2. Supervised basic trial

5.3. SME trials

Acknowledgements

References

Vitae

Vitae

Vitae