Date: 01 Dec 2000

Untraceable Electronic Cash

Abstract

The use of credit cards today is an act of faith on the p a t of all concerned. Each party is vulnerable to fraud by the others, and the cardholder in particular has no protection against surveillance.

Work done while the second and third authors were at the University of California at Berkeley. The work of the second author was supported by a Weizmann Postdoctoral Fellowship and by NSF Grants DCR 84-11954 and DCR 85-13926. The work of the third author was supported by NSF Grants DCR 85-13926 and CCR 88-13632.