[mnet-devel] What does EGTP do that a PGP message doesn't

Artimage artimage at shockwave.concernd.com
Mon Oct 6 16:18:34 BST 2003


This is probably true. I guess we would need a one hop privacy hack that
talks ssl and sits on port 443.

Artimage.-

On Mon, 6 Oct 2003, Zooko O'Whielacronx wrote:

>
>  Art wrote:
> >
> > I want link encryption.
> >
> > "Why?" you ask...
> >
> > Becuase I want to run mnet while on client sites. And I don't want them to
> > know what I am running. Sure, if they knew about mnet and were running a
> > node they might notice, but if my traffic is unencrypted they difinately
> > will.
> >
> > I like link encryption.
>
> Good point.  With EGTPv1, they can see that you are running some funny
> protocol that starts with a 0-byte or a 1-byte, followed by a 4-byte length
> and then that many random bytes.  They won't think that you are using
> SSL-protected web sites, but they probably won't guess what you *are* doing
> (until EGTP becomes a lot more popular and sysadmins get modules for their
> sniffer programs that detect it).
>
> There might be other patterns in EGTP messages that are detectable, but there
> isn't any human-readable string sent in cleartext that says "Hi!  I'm a
> subversive emergent network hacker!  See http://sf.net/projects/mnet/.".
>
> One the other hand, the pattern of what ports you listen to and how
> connections get opened and closed will be more useful information, and will
> probably look exactly like a file-sharing app and trigger their "file-sharing-
> detector" scripts.
>
> Interesting how traffic analysis is actually used in practice nowadays, not
> because the user is protected by high-tech Chaumian mixes, but because it is
> easier to do traffic analysis than to parse message formats.
>
> --Z
>
>
>
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