1994-12-20 - Re: hiding strings in binaries

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From: fain@tyto.etho.caltech.edu (Dan Fain)
To: mlist-cypherpunks@nntp-server.caltech.edu
Message Hash: 9205be6ab9b12439e794b9dc9041180d28eecdda7767c360b094a7d77a70b03d
Message ID: <FAIN.94Dec19215811@tyto.etho.caltech.edu>
Reply To: <9412200231.AA04630@fnord.sybgate.sybase.com>
UTC Datetime: 1994-12-20 05:55:00 UTC
Raw Date: Mon, 19 Dec 94 21:55:00 PST

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From: fain@tyto.etho.caltech.edu (Dan Fain)
Date: Mon, 19 Dec 94 21:55:00 PST
To: mlist-cypherpunks@nntp-server.caltech.edu
Subject: Re: hiding strings in binaries
In-Reply-To: <9412200231.AA04630@fnord.sybgate.sybase.com>
Message-ID: <FAIN.94Dec19215811@tyto.etho.caltech.edu>
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> I gather that this was one of the entries in the "obfuscated 'C'"
> programming contests that used to be held some years ago.  (Are they
> still held?)

I don't know if they're still held, but for a history of the contest
from 1984-1991, see Libes, Don.  _Obfuscated C and Other Mysteries_.
New York: Wiley, 1993.  Many of the programs use Rot-13 encryption.
The book describes some generally applicable principles of obfuscation.

A "Twelve Days of Christmas" program was the winner of the 1988 "Least
Likely to Compile Successfully" award.

Dan Fain
Caltech





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