From: Jeremey Barrett <jeremey@bluemoney.com>
Date: Fri, 23 May 1997 13:31:15 +0800
To: Adam Back <cypherpunks@algebra.com
Subject: Re: ecash & remailers
In-Reply-To: <199705221703.SAA02054@server.test.net>
Message-ID: <3.0.2.32.19970522221830.00694e68@descartes.bluemoney.com>
MIME-Version: 1.0
Content-Type: text/plain


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At 06:03 PM 5/22/97 +0100, Adam Back wrote:
>
>To stop this, the sender should discard the blinding values, thereby
>removing his ability to be later coerced, or to later trace the
>recipient of his cash.
>
>Is there a way to purge blinding values from the ecash directory?
>

Coins are removed from the cash db when they are paid out. They are then
stored in the payments db along with the payment headers, etc. The blinding
factors are not stored once the coins have been paid. Regardless, removing
the payments db will not cause any ill effect (that I have noticed, except for
the obvious loss of payment records), so you can do that anyway if you like.

(Note, this is based on a hex dump of the payments db, so it's possible I'm 
wrong. Anyone from Digicash who knows otherwise, please correct me.)

Jeremey.

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--
Jeremey Barrett                                  VeriWeb Internet Corp.
Crypto, Ecash, Commerce Systems                 http://www.veriweb.com/
PGP key fingerprint =  3B 42 1E D4 4B 17 0D 80  DC 59 6F 59 04 C3 83 64