From: futplex@pseudonym.com (Futplex)
Date: Wed, 13 Sep 95 13:08:02 PDT
To: cypherpunks@toad.com (Cypherpunks Mailing List)
Subject: Minor Risk to LSB Steganography
Message-ID: <9509132007.AA19945@cs.umass.edu>
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Last week I attended a lecture given by Dexter Kozen at Cornell, on 
"Efficient Algorithms for Optimal Transmission of Video Data". He
mentioned in passing a couple of approaches to choosing data that may 
acceptably be lost in the process (i.e. without excessive picture quality
degradation). One scheme (which I believe counts as a "corona method") 
involves simply discarding the LSBs of all the encoded pixels or whatnot. 
This method was not at all a focus of the talk. Anyway, I thought
I'd mention it as another minor potential threat to the use of LSB
steganography in video transmission, e.g. MPEG streams.

-Futplex <futplex@pseudonym.com>