1995-10-21 - Re: digital cash and identity disclosure

Header Data

From: olmur@dwarf.bb.bawue.de (Olmur)
To: Holger.Reif@PrakInf.TU-Ilmenau.DE (Holger Reif )
Message Hash: 93f475a32bd8c06e9735fd3302406b804c4c1ac5cf5c85e9042346a65a77e771
Message ID: <m0t6dwp-0006UrC@dwarf>
Reply To: <9510200933.AA02681@PrakInf.TU-Ilmenau.DE>
UTC Datetime: 1995-10-21 20:51:23 UTC
Raw Date: Sat, 21 Oct 95 13:51:23 PDT

Raw message

From: olmur@dwarf.bb.bawue.de (Olmur)
Date: Sat, 21 Oct 95 13:51:23 PDT
To: Holger.Reif@PrakInf.TU-Ilmenau.DE (Holger Reif )
Subject: Re: digital cash and identity disclosure
In-Reply-To: <9510200933.AA02681@PrakInf.TU-Ilmenau.DE>
Message-ID: <m0t6dwp-0006UrC@dwarf>
MIME-Version: 1.0
Content-Type: text/plain


>>>>> "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

Thread

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• Return to “Adam Shostack <adam@homeport.org>”
• Return to “Holger.Reif@PrakInf.TU-Ilmenau.DE (Holger Reif )”
• Return to “Michael Froomkin <froomkin@law.miami.edu>”

• Return to “olmur@dwarf.bb.bawue.de (Olmur)”

• 1995-10-20 (Fri, 20 Oct 95 02:34:18 PDT) - Re: digital cash and identity disclosure - Holger.Reif@PrakInf.TU-Ilmenau.DE (Holger Reif )
  • 1995-10-21 (Fri, 20 Oct 95 19:09:58 PDT) - Re: digital cash and identity disclosure - Michael Froomkin <froomkin@law.miami.edu>
    • 1995-10-21 (Sat, 21 Oct 95 13:53:20 PDT) - Re: digital cash and identity disclosure - Adam Shostack <adam@homeport.org>
  • 1995-10-21 (Sat, 21 Oct 95 13:51:23 PDT) - Re: digital cash and identity disclosure - olmur@dwarf.bb.bawue.de (Olmur)
  • 1995-10-21 (Sat, 21 Oct 95 13:52:53 PDT) - Re: digital cash and identity disclosure - olmur@dwarf.bb.bawue.de (Olmur)