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Level III Challenges (57)

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

Handycipher — Part 8

[kallick-22] - 0 users already solved this challenge, 1 is working on it.

Handycipher is a newly created cipher designed to permit pen-and-paper encrypting and decrypting, while providing a significantly high level of security. Part 8 is the same as Part 5, but uses an improved version of the cipher. You are given the ciphertext and 229 letters occuring at an unknown location in the plaintext.

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Published on: 2017-01-21 22:14
Maximum number of attempts for this challenge: 20

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