MysteryTwister C3
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Please send the challenge you created (packed within a single zip file) to the following address:

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The zip file should contain the following:

  • a challenge description (text document is sufficient, we take care of the formatting),
  • a cipher text,
  • a solution (solution phrase) to be used for automatic feedback to the participating solvers,
  • a suggestion for the level your challenges should be part of,
  • a suggestion to the maximal number of tries, as well as
  • the name of the author of the challenge (optional).
 
 
powered by the CrypTool project  CrypTool

 

   +++    [00:10 - 26.08.2019] D3d4lu5 solved the Level II challenge 'A Cloaked Substitution Cipher — Part 2'    +++    [23:35 - 25.08.2019] Stephje1978 solved the Level I challenge 'New Year's Greetings — Part 2'    +++    [23:20 - 25.08.2019] Stephje1978 solved the Level I challenge 'New Year's Greetings — Part 1'    +++    [22:14 - 25.08.2019] Stephje1978 solved the Level I challenge 'News from Castle Mansfeld'    +++    [09:32 - 25.08.2019] zhuanwancaishi solved the Level II challenge 'AES key — encoded in the machine readable zone of a European ePassport'    +++