[3754] in WWW Security List Archive
Re: anonymous e-cash
daemon@ATHENA.MIT.EDU (John.Clayton@ISD01.scotoff.gov.uk)
Mon Dec 9 10:24:54 1996
From: John.Clayton@ISD01.scotoff.gov.uk
Date: Mon, 9 Dec 96 13:07:00 +0000
TO: www-security@ns2.rutgers.edu
Errors-To: owner-www-security@ns2.rutgers.edu
owner-www-security:
>
> I work for a bank, and I am doing independent research at ASU.
> I am trying to come up to speed on Web security issues. After
> many long hours of reading definitions etc., I am confused by
> the Internet Payment ads that describe e-cash as "totally anonymous."
>
> QUESTION: How can a sender be totally anonymous to the receiver,
> especially when the receiver needs to return a response? The
> "note" can be disguised with blinding, but how can the sender's
> IP address be disguised?
> --
How will this work with Smart Cards? When in the future I use a smart
card in a vending machine (aka network computer) will the vending machine
itself validate the transaction, or will the network 'see' my card.
Presumably I could also have a 'Dumb' Card, which had a cash value and
nothing more and was totally anonymous - though don't we have that
already and call it cash? ;-)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ John Clayton +
+ Communication & Information Services Division +
+ Scottish Office +
+ H Spur, Saughton House, Broomhouse Drive +
+ EDINBURGH, EH11 3XD, Britain +
+ tel: 0131 244 8104 fax: 0131 244 8102 +
+ email: John.Clayton@isd01.scotoff.gov +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
