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 <[email protected]> To: [email protected] 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 / > > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > Hosted and sponsored by Secunia - http://secunia.com/ --- Stuart Udall stuart [email protected] net - http://www.cyberdelix.net/ --- * Origin: lsi: revolution through evolution (192:168/0.2) _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
