From: Arun Mehta <amehta@giasdl01.vsnl.net.in>
Date: Mon, 29 Jul 1996 19:54:25 +0800
To: cypherpunks@toad.com
Subject: Re: E-Cash promotion idea
Message-ID: <1.5.4.32.19960729084347.00331d14@giasdl01.vsnl.net.in>
MIME-Version: 1.0
Content-Type: text/plain


At 05:15 24/07/96 -0500, Matt Carpenter wrote:

>getting change from the merchant.  Ian Goldberg pointed out that
>with the current ecash protocol, accepting change not only eliminates your
>anonymity, but that you also have to go online to make sure you aren't being
>cheated.

I'm sure it should be possible for the merchant to electronically
give you an "IOU" for the amount of change s/he owes you, no
matter how small, without loss of your anonymity. Next time you
go to the same merchant, the IOU could automatically be adjusted
against the new purchase.
Arun Mehta Phone +91-11-6841172, 6849103 amehta@cpsr.org
http://www.cerfnet.com/~amehta/  finger amehta@cerfnet.com for public key