MysteryTwister C3
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Level II Challenges (95)

Page 1 of the challenges in Level II, ordered by date posted (the most recent appear first).

Double-Column Transposition/Granit — Part 2

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This challenge series is about the GRANIT cipher, a method that can be done manually. It has been used for instance by the former GDR spy Günter Guillaume till about 1960.
Part 1, 2 and 3 of this series use the same keyword for generating the key matrix, but different permutation keys. This part has a ciphertext-only challenge and the ciphertext has 110 characters.
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Published on: 2015-07-01 18:21
Maximum number of attempts for this challenge: 15

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   +++    [11:06 - 30.05.2017] misio solved the Level II challenge 'Letter to the Templars — Part 3'    +++    [10:52 - 30.05.2017] misio solved the Level I challenge 'Letter to the Templars — Part 2'    +++    [10:48 - 30.05.2017] misio solved the Level I challenge 'Letter to the Templars — Part 1'    +++    [09:47 - 30.05.2017] misio solved the Level I challenge 'Original Caesar Cipher'    +++    [21:15 - 29.05.2017] george4096 solved the Level II challenge 'Weakened Handycipher — Part 5'    +++