From sealed-bid electronic auction to electronic cheque

Abstract

In this paper, we establish a relation between sealed-bid eauction and e-cheque by proposing a transformation technique which transforms a secure sealed-bid e-auction into a secure e-cheque scheme. Although the application scenario differs, we notice that the scheme structure and fundamental security properties in both schemes are similar, namely, unforgeability, anonymity and indistinguishability. As a proof of concept, we apply the transformation technique on the classic Sakurai and Miyazaki sealed-bid e-auction scheme and obtain a secure e-cheque scheme.