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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