From: "Mark M." <markm@voicenet.com>
Date: Tue, 3 Sep 1996 14:46:30 +0800
To: cypherpunks@toad.com
Subject: Re: Cypherpunk Mailboxes?
In-Reply-To: <Pine.LNX.3.94.960902165706.10756A-100000@anx0918.slip.appstate.edu>
Message-ID: <Pine.LNX.3.95.960902192700.1066A-100000@gak>
MIME-Version: 1.0
Content-Type: text/plain


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On Mon, 2 Sep 1996, The Deviant wrote:

> Hrmm.. perhaps there's a better way...
> such as having the user and the mail server negoiae a key (i don't really
> know the details of diffie-hellman or he like, so tell me if this isn't
> feasable), and have the encryption/decypion routines strip addresses,
> so that the person is only identifiable by their key...

The mail server still has to send packets to the user.  A packet sniffer might
not be able to find out the actual contents of the transmission, but it would
be able to find out the host that has made the connection.  If this is combined
with the knowledge of the times that certain user's mailboxes get cleared out,
it would be possible to find out which nyms belong to which people.  The
current nym servers that automatically forward mail do not have this problem.

- -- Mark

PGP encrypted mail prefered.
Key fingerprint = d61734f2800486ae6f79bfeb70f95348
http://www.voicenet.com/~markm/

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