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).

Extended Handycipher — Part 3

[kallick-06] - 1 user already solved this challenge.
 
 
 

Extended Handycipher is an enhancement of the newly designed cipher Handycipher, which permits pen-and-paper encrypting and decrypting, while providing a significantly high level of security. You got only two different ciphertexts of the 996-character plaintext.
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Published on: 2015-03-27 15:28
Maximum number of attempts for this challenge: 15

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Michael Möller (michaelm) 1183 (117401) 2015-10-31 18:28:20
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