[41945] in Cypherpunks
Re: digital cash and identity disclosure
daemon@ATHENA.MIT.EDU (Olmur)
Sat Oct 21 17:00:08 1995
Date: Sat, 21 Oct 95 14:26 MET
From: olmur@dwarf.bb.bawue.de (Olmur)
To: Holger.Reif@PrakInf.TU-Ilmenau.DE (Holger Reif )
Cc: cypherpunks@toad.com
In-Reply-To: <9510200933.AA02681@PrakInf.TU-Ilmenau.DE>
>>>>> "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
