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From: bs@augusta.UUCP (Burch Seymour)
Newsgroups: sci.math,sci.crypt
Subject: Re: Encryption of Hoffman coded text
Message-ID: <548@augusta.UUCP>
Date: Mon, 10-Aug-87 08:22:09 EDT
Article-I.D.: augusta.548
Posted: Mon Aug 10 08:22:09 1987
Date-Received: Tue, 11-Aug-87 03:34:44 EDT
References: <3515@cit-vax.Caltech.Edu>
Organization: Gould CSD, Fort Lauderdale, FL
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Xref: mnetor sci.math:1822 sci.crypt:516

in article <3515@cit-vax.Caltech.Edu>, palmer@tybalt.caltech.edu (David Palmer) says:
>
> It seems to me that Hoffman coding makes the plaintext look more 'random'
> and, so, less amenable to statistical attack.  Is this so?

An in a similar vein, it would seem that preceeding the encryption with
a simpleminded substitution, say to 17 bit characters, which flattened out 
the distribution on the use of the alphabet, ie mapping more characters
to 'e' than 'q' would also make the results difficult to attack. Any 
comments?

-Burch Seymour-