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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 (117401) 2015-09-23 19:08:45
Em Doulgerakis (Greko) 13977 (109970) 2016-09-13 10:59:28
george lasry (george4096) 13775 (163031) 2017-05-27 02:00:58
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   +++    [08:50 - 29.05.2017] Magellan solved the Level I challenge 'Homophonic Encryption Part 1'    +++    [08:02 - 29.05.2017] Magellan solved the Level I challenge 'Homophonic Encryption Part 2'    +++    [01:02 - 29.05.2017] george4096 solved the Level II challenge 'Weakened Handycipher — Part 6'    +++    [00:37 - 29.05.2017] george4096 solved the Level III challenge 'Extended Handycipher — Part 5'    +++    [00:30 - 29.05.2017] george4096 solved the Level III challenge 'Extended Handycipher — Part 4'    +++