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From: Stefan Claas <pollux@tilde.club>
Newsgroups: sci.crypt
Subject: Re: [Christmas Challenge 2024] Crack Doppelkastenschluessel-Hex
Date: Fri, 20 Dec 2024 21:51:11 +0100
Organization: To protect and to server
Message-ID: <vk4lc4$5c04$1@paganini.bofh.team>
References: <vk4kfn$5as3$1@paganini.bofh.team> <vk4kuc$3k2q0$2@dont-email.me>
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Chris M. Thomasson wrote:
> On 12/20/2024 12:35 PM, Stefan Claas wrote:
> > Hi all,
> > 
> > I recently finished my Doppekastenschluessel-Hex project,
> > which is a simplified version of the original German WWII
> > cipher, with hex notation.
> > 
> > For more details check my previous thread 'Seriation'
> > 
> > Your task is to crack the provided message, which uses
> > only one key for encryption, instead of two (default)
> > or more.
> > 
> > The message:
> > 
> > 75 A2 85 D1 84 59 85 2D 25 CB 85 1C 24 70 27 6C
> > C5 3C 65 2E 87 6C 8E E7 89 E9 C9 3E 8E 7D 8E D6
> > 
> > Please note: The message is written as normal text and
> > not like plaintext messages from the old days and with
> > padding applied.
> 
> Perhaps we need a larger amount of ciphertext?

That would make cryptanalysis easier, right?

BTW. For drawing the winners, should they been drawn from
a random pool of entries, or by first come first serve?

-- 
Regards
Stefan