full-disclosure - Re: Introducing TGP...

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Message-ID: <4C1AD93C.24948.215D9BCB@stuart.cyberdelix.net>
Date: Fri, 18 Jun 2010 03:26:04 +0100
From: "lsi" <stuart@...erdelix.net>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: Introducing TGP...

http://en.wikipedia.org/wiki/Vigenere_cipher

"This cipher is well known because while it is easy to understand and 
implement, it often appears to beginners to be unbreakable; this 
earned it the description le chiffre indéchiffrable (French for 'the 
unbreakable cipher'). Consequently, many people have tried to 
implement encryption schemes that are essentially Vigenère ciphers, 
only to have them broken[1]."

1. Smith, Laurence D. (1943). "Substitution Ciphers". Cryptography 
the Science of Secret Writing: The Science of Secret Writing. Dover 
Publications. pp. 81. ISBN 0-486-20247-X.

Stu

On 18 Jun 2010 at 2:00, Pavel Kankovsky wrote:

Date sent:      	Fri, 18 Jun 2010 02:00:48 +0200 (CEST)
From:           	Pavel Kankovsky <peak@...o.troja.mff.cuni.cz>
To:             	full-disclosure@...ts.grok.org.uk
Subject:        	Re: [Full-disclosure] Introducing TGP...

> On Mon, 14 Jun 2010, lsi wrote:
> 
> > [...] cracking some files protected by ancient crypto.
> 
> Ancient crypto? Five or so years ago I met a "big business" application 
> using an encryption algorithm based on the Vigenere cipher (you know, 
> that 450 year old thing *not* invented by Blaise de Vigenere). :)
> 
> -- 
> Pavel Kankovsky aka Peak                          / Jeremiah 9:21        \
> "For death is come up into our MS Windows(tm)..." \ 21st century edition /
> 
> 
> _______________________________________________
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---
Stuart Udall
stuart at@...erdelix.dot net - http://www.cyberdelix.net/

--- 
 * Origin: lsi: revolution through evolution (192:168/0.2)

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