MysteryTwister C3

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Dear users, we apologize for the long response times of our server. We are currently in the closing stages of developing a completely redesigned site with much better performance, and we are confident to go live this summer. Thanks for your understanding.

New ElsieFour challenges available!

There are two new challenges that use the cipher LC4. In adition, new Python code is provided that contains a lot of new functions. You can find the code in the additional zip archives of all ElsieFour challenges.

The "Advent Challenge — Part 4" can be used as an introduction to ElsieFour.
Subsequently you should continue with the "Weakened ElsieFour" challenges part 1 to 3, which use a weakened version of the LC4 cipher. Finally "ElsieFour — Part 1" is waiting for you.

Enjoy the dissolving!

powered by the CrypTool project  CrypTool


   +++    [16:58 - 27.09.2021] Surtees solved the Level I challenge 'Number Sequence — Part 2'    +++    [14:53 - 27.09.2021] jenniferdecastro solved the Level I challenge 'A hidden word'    +++    [14:28 - 27.09.2021] Mercer solved the Level II challenge 'Cracking SHA1-Hashed Passwords'    +++    [09:52 - 26.09.2021] CRYbaby solved the Level I challenge 'How do you become a big cryptographer?'    +++    [17:29 - 25.09.2021] gemmath solved the Level I challenge 'Letter to the Templars — Part 1'    +++