[42234] in Cypherpunks
Re: Hack DigiCash: Payee Anonymity
daemon@ATHENA.MIT.EDU (Jiri Baum)
Wed Oct 25 03:40:17 1995
From: Jiri Baum <jirib@sweeney.cs.monash.edu.au>
To:
Date: Wed, 25 Oct 1995 17:37:42 +1000 (EST)
Cc: cypherpunks@toad.com
In-Reply-To: <199510240750.IAA04175@utopia.hacktic.nl> from "Name Withheld by Request" at Oct 24, 95 08:50:06 am
Reply-To: jirib@cs.monash.edu.au
-----BEGIN PGP SIGNED MESSAGE-----
Hello cypherpunks@toad.com
...
> I think the most interesting hack to pursue is to eliminate the
> payee-nonanonymity problem.
...
> The <--(blinding)--- payer <--(blinding)--- payee
> Bank --(unblinding)-> payer --(unblinding)-> payee --> payee spends money
The payer would want to check the proto-coins for values which show
through the blinding. Are there any such values?
To guard agains unknown possibilities in this area, the payer might
want to check that the proto-coins are valid (at least).
...
> Privacy for all involved.
How about the bank?
Given that the thing's patented, the bank might conceivably wish
to remain anonymous :-)
Jiri
- --
If you want an answer, please mail to <jirib@cs.monash.edu.au>.
On sweeney, I may delete without reading!
PGP 463A14D5 (but it's at home so it'll take a day or two)
PGP EF0607F9 (but it's at uni so don't rely on it too much)
-----BEGIN PGP SIGNATURE-----
Version: 2.6.2i
iQCVAwUBMI3pNixV6mvvBgf5AQGWRgP/fiv5UlZ/9V5qavCNdLzxJr0/M0M4lTCN
ITx8nsGBr7kt345v55LP63nQB54tvp8Zpx1BWtkYDN4WyHdF/+wnziCP2AMVUDhI
ZX9fG1p8WjCg8eqsboQmeerLCDq5oR7ic0ui86jU0nW4jJ4aLwnoXCCdHyEsi5oR
qCZnNG43JhY=
=YNgV
-----END PGP SIGNATURE-----
