From: Bill Sommerfeld <sommerfeld@orchard.medford.ma.us>
Date: Tue, 7 Nov 1995 13:40:23 +0800
To: perry@piermont.com
Subject: Re: forging headers
In-Reply-To: <199511070255.VAA14851@jekyll.piermont.com>
Message-ID: <199511070353.DAA01678@orchard.medford.ma.us>
MIME-Version: 1.0
Content-Type: text/plain


-----BEGIN PGP SIGNED MESSAGE-----

> You didn't send ALL the headers, only some of them. You need to send
> on the full set to make a trace possible.

More specifically, the headers which are most needed are the Received:
and Message-Id: headers; each mailer along the path adds another
Received; header, typically with its name, a timestamp, and sometimes
the name or address of the previous system.  

Other headers may also help.

> Lee Tien writes:
> > So I got this message.  How would someone identify the sender of this
> > message?  I'm writing an article on anonymity, with some discussion of
> > remailers, and want to argue that forging already permits people to raise
> > the costs of tracing significantly, anonymous remailers or no.  

						- Bill

-----BEGIN PGP SIGNATURE-----
Version: 2.6.1

iQCVAwUBMJ7YHrT+rHlVUGpxAQHfSgP/YDoEM9chlFLNZ1U4nzh6T13Lsswqv768
oTpssqzW+OYenKgop7FOGYIs7GpSdSGdgFyucYHlcBkUpVXOLMcs/pylwIVGy8Hl
T/lrsNEjAEBjWlzZO6jSuKvrODZKGGfn7nTvmmCR8vKRtUlLnK3ljK8VphqpYvbm
Nmg6okhczZM=
=JO4Z
-----END PGP SIGNATURE-----