From: doug@netcom.com (Doug Merritt)
Date: Thu, 30 Sep 93 19:07:07 PDT
To: cypherpunks@toad.com
Subject: steganography & fidonet
Message-ID: <9310010206.AA27468@netcom5.netcom.com>
MIME-Version: 1.0
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In regard to things like Fidonet sysops noting forbidden encryption
pasing through their systems:

Encrypted messages could be encoded in a final pass as English sentences.
A 2000 line C program with a 200,000 word dictionary could encode and
decode sentences that were roughly grammatical, even if they sounded
really weird on average.

Although I've never heard of this being done, it's pretty obvious in one
sense, so I'm sure it's no surprise to the spooks. It surely wouldn't
be obvious to snoopy Fidonet sysops, though, so it may have its uses.

BTW a more complex program + dictionary could confine the encoded utterances
to topical words and therefore sound even less weird. With enough
sophistication, such an encoding could generally pass muster as
"confusing and poorly worded jargon" to anyone but the most devoted analyst.

I've got enough (or almost enough) sw & dictionaries & word clusters on hand
to implement such a thing, but I've personally no purpose to use it for.
	Doug