17 Dec
2003
17 Dec
'03
11:17 p.m.
"Holger" Reif <Holger.Reif@PrakInf.TU-Ilmenau.DE> writes:
Holger> I don't understand how this could happen? The two coins are Holger> identical (as I understood it from the tech backgound of Holger> ecash). what has a double- spended coin what a copied Holger> single-spended coin not has? In Chaum's system spending a coin is a cut-and-choose protocol: with overwhelming probability you reveal informations about your ID, when you present your e-coin a second time. Bye! Michael Deindl