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 Post subject: Challenge "Molehunt (Part 1/3)"
PostPosted: Fri Oct 22, 2010 16:01 
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Joined: Wed Sep 30, 2009 14:10
Posts: 180
This is part 1 of a 3-part challenge regarding the classical transposition. You can solve this challenge with pen and paper as well as with adequate software programs (e.g. CrypTool 2). With this irregular columnar tranposition a key length greater than 10 was used.
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 Post subject: Re: Challenge
PostPosted: Sun Oct 24, 2010 12:51 

Joined: Thu Oct 21, 2010 00:14
Posts: 1
Hi, is the solution in english or in german?


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 Post subject: Re: Challenge
PostPosted: Sun Oct 24, 2010 13:50 

Joined: Fri Nov 06, 2009 20:54
Posts: 23
Location: Kassel
Hi. The solution is in german.

Cheers,
Arno

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 Post subject: Re: Challenge "Molehunt (Part 1/3)"
PostPosted: Wed Nov 10, 2010 14:41 

Joined: Tue Nov 09, 2010 14:13
Posts: 1
So we have a text of 445 letters.
Hint:
"With this irregular columnar tranposition a key length greater than 10 was used."

Means that there are columns with 11 or more letters each ?
That could be .. for example .. 11 or 55 ? :E
445/11 ~ 40 rows
445/55 ~ 8 rows

How is that solveable ?
Maybe i got something wrong ?


Btw I just recognized a typing mistake - my quoted text sais "tranposition"
instead of "tranSposition"


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 Post subject: Re: Challenge "Molehunt (Part 1/3)"
PostPosted: Sat Aug 27, 2011 12:47 

Joined: Thu Aug 18, 2011 14:16
Posts: 9
i am wondering how one is supposed to find the used "key word" once the text is decrypted... when you have the key in form of 11 or more numbers, you have to find a word whose letters are in that alphabetical order, right? that is a challenge by itself :icon_rolleyes:


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 Post subject: Re: Challenge "Molehunt (Part 1/3)"
PostPosted: Sat Aug 27, 2011 22:28 

Joined: Sat Jun 18, 2011 13:43
Posts: 149
Why do you wish to know the keyword? There will in general be many words that fit the pattern in which the columns are permuted.

It has been a while since I solved this but how do you know that there is a valid keyword?


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 Post subject: Re: Challenge "Molehunt (Part 1/3)"
PostPosted: Sun Aug 28, 2011 19:50 

Joined: Thu Aug 18, 2011 14:16
Posts: 9
the german challenge pdf tells me to submit the "key word" in uppercase... that doesn't sound like it would suffice to submit the number sequence.


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 Post subject: Re: Challenge "Molehunt (Part 1/3)"
PostPosted: Sun Aug 28, 2011 20:05 

Joined: Sat Jun 18, 2011 13:43
Posts: 149
No, not the keyword of the transposition...a keyword that is referred to in the plaintext.

I don't know German but in the slide before it tells you the german word to look for in order to find the keyword.


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   +++    [04:35 - 19.04.2014] Yokozuna solved the Level II challenge 'Double Column Transposition — Part 1'    +++    [19:31 - 18.04.2014] herbert solved the Level I challenge 'Number Sequence — Part 4'    +++    [19:24 - 18.04.2014] herbert solved the Level I challenge 'Number Sequence — Part 3'    +++    [19:00 - 18.04.2014] herbert solved the Level I challenge 'Original Caesar Cipher'    +++    [17:43 - 18.04.2014] herbert solved the Level I challenge 'How do you become a big cryptographer?'    +++