MysteryTwister C3
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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 3

[kallick-03] - 4 users already solved this challenge, 2 are working on it.
 
 
 

Handycipher is a newly designed cipher to permit pen-and-paper encrypting and decrypting, while providing a significantly high level of security. You got only the ciphertext of the 993-character plaintext.
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Published on: 2015-03-03 23:40
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#4) Achieved points (Global score) y-m-d - h:m:s

Alain (Integral) 15093 (198642) 2015-06-12 19:31:53
Michael Möller (michaelm) 14592 (118745) 2015-09-23 19:08:45
Em Doulgerakis (Greko) 13977 (109970) 2016-09-13 10:59:28
george lasry (george4096) 13775 (281491) 2017-05-27 02:00:58
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   +++    [13:27 - 23.08.2017] tenchijin solved the Level II challenge 'Broadcasting and low exponent — RSA-Attack'    +++    [10:07 - 23.08.2017] nurnicu solved the Level I challenge 'Number Sequence — Part 2'    +++    [18:15 - 22.08.2017] D3d4lu5 solved the Level II challenge 'ASAC — A Strong(er) ADFGVX Cipher — Part 1'    +++    [18:13 - 22.08.2017] D3d4lu5 solved the Level II challenge 'Double Column Transposition — Part 3'    +++    [18:11 - 22.08.2017] D3d4lu5 solved the Level II challenge 'Double Column Transposition — Part 2'    +++