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Abstracts - 3rd USENIX Workshop on Electronic Commerce

Towards A Framework for Handling Disputes in Payment Systems

N. Asokan, Els Van Herreweghen, and Michael Steiner
IBM Zurich Research Laboratory


The ability to support disputes is an important, but often neglected aspect of payment systems. In this paper, we present a language for expressing dispute claims in a unified manner, independent of any specific payment system. We illustrate how to support claims made in this language with evidence tokens from an example payment system. We also describe an architecture for dispute handling. Our approach may be generalised to other services where accountability is a requirement.
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Last changed: 9 Apr 2002 ml
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