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Vigenere/Caesar breaking
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addlepated
Unfictologist


Joined: 17 Aug 2003
Posts: 1885
Location: Austin, Texas

 		Vigenere/Caesar breaking
This is useful - I hadn't seen it before, and it works on Mac/Safari unlike Simon Singh's breaking tool.

http://www.dtek.chalmers.se/~d97roli/project/krypto/

PostPosted: Sat Oct 30, 2004 3:10 am
Last edited by addlepated on Sat Oct 30, 2004 2:22 pm; edited 1 time in total
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Wishi-san
Unfettered


Joined: 20 Oct 2003
Posts: 602
Location: UK. Southwards.

 		Um, isn't it vigenere?
_________________
Given that God is infinite, and that the universe is also infinite... would you like a toasted tea cake?
Wishi-san x Wishi-san x Wishi-san

PostPosted: Sat Oct 30, 2004 1:01 pm
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addlepated
Unfictologist


Joined: 17 Aug 2003
Posts: 1885
Location: Austin, Texas
Wishi-san wrote:
Um, isn't it vigenere?

Geez, be a pedant, will ya? Wink

[/i]

PostPosted: Sat Oct 30, 2004 2:24 pm
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Delusional
Entrenched


Joined: 16 May 2005
Posts: 839

 		I just came across this clear & concise rundown on makeing and breaking Vigenere ciphers. I have to admit (after reading many explanations) untill reading this i wasn't quiet sure how Vigenere ciphers really worked. So just thought i'd share.

Vigenere cryptography

PostPosted: Fri Sep 02, 2005 8:41 pm
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Kender
Decorated


Joined: 09 Aug 2004
Posts: 264
Location: The Netherlands

 		I've cooked up a little javascript vigenere decoder. Just click Download below to start using it, no need to copy or install anything.

It'll make a best guess as to the ciphers key and solution.

Don't let its speed or simplicity fool you. It will help you break most vigenere encrypted ciphers!

Solves Elonka's "Fiendish" vigenere sample at http://www.elonka.com/mammoth/samples.html in microseconds Smile

Edit: example ref added
GuessVigenere.html
Description  Feel free to use/modify but gimme credit
 html

 Download 
Filename  GuessVigenere.html 
Filesize  5.86KB 
Downloaded  1359 Time(s) 

PostPosted: Thu Feb 02, 2006 2:52 am
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jandahl
Guest


 		viginere
Delusional wrote:
I just came across this clear & concise rundown on makeing and breaking Vigenere ciphers. I have to admit (after reading many explanations) untill reading this i wasn't quiet sure how Vigenere ciphers really worked. So just thought i'd share.

Vigenere cryptography


Hello could you please be so kind to re-post the link about viginere cipher? The current one, appears to be broken.

PostPosted: Tue Jul 13, 2010 12:27 pm
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natas
PHP Ninja


Joined: 06 Oct 2007
Posts: 3177
Location: Northwest Indiana

 		Re: viginere
jandahl wrote:
Delusional wrote:
I just came across this clear & concise rundown on makeing and breaking Vigenere ciphers. I have to admit (after reading many explanations) untill reading this i wasn't quiet sure how Vigenere ciphers really worked. So just thought i'd share.

Vigenere cryptography


Hello could you please be so kind to re-post the link about viginere cipher? The current one, appears to be broken.


http://www.cs.trincoll.edu/~crypto/historical/vigenere.html

PostPosted: Tue Jul 13, 2010 4:13 pm
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