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Level II Challenges (107)

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

Hilly — Part 2

[almardeny-02] - 0 users already solved this challenge, 1 is working on it.
 
 
 

Hilly is an improved version of Hill cipher. This challenge consists of the decryption of a ciphertext by means of a partly-known key.
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Published on: 2017-10-17 17:12
Maximum number of attempts for this challenge: 15

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   +++    [21:55 - 17.07.2018] Sgt. Pepper solved the Level II challenge 'M-138 — Part 4'    +++    [19:54 - 17.07.2018] Sgt. Pepper solved the Level II challenge 'Monoalphabetic substitution with camouflage — Part 2'    +++    [19:15 - 17.07.2018] Cenlan solved the Level I challenge 'Grille Cipher'    +++    [18:28 - 17.07.2018] Sgt. Pepper solved the Level II challenge 'Monoalphabetic Substitution with Camouflage — Part 5'    +++    [17:14 - 17.07.2018] Cenlan solved the Level I challenge 'A hidden word'    +++