Date: 24 Oct 2001

Fair Electronic Cash Based on a Group Signature Scheme

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Several new groupsignature schemes have been proposed in recent years. In addition, several applications for group signatures (including electronic cash) have been suggested.

A new cash scheme based on a recent groupsignature by Ateniese, Camenisch, Joye and Tsudik is presented. Its construction uses a general framework suitable for a number of groupsignature schemes. We also identify the challenges faced by such schemes.

This research is part of an ARC SPIRT project undertaken jointly by Queensland University of Technology and Telstra