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Level III Challenges (58)

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

Handycipher — Part 6

[kallick-14] - 4 users already solved this challenge.
 
 
 

Handycipher is a newly created cipher designed to permit pen-and-paper encrypting and decrypting, while providing a significantly high level of security. Part 6 is the same as Part 3, but uses an improved version of the cipher. It is a ciphertext-only challenge.
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Published on: 2016-06-28 19:59
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) 15666 (198642) 2016-08-16 23:27:18
Michael Möller (michaelm) 15124 (150377) 2016-10-03 10:57:55
george lasry (george4096) 14276 (281594) 2017-05-28 23:48:45
Nicolas (nicosPavlov) 13925 (145516) 2018-03-06 14:54:25
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   +++    [18:56 - 21.06.2018] ExAstris solved the Level II challenge 'Fastest in the West'    +++    [16:59 - 21.06.2018] rnd solved the Level I challenge 'One-Time Pad with Flaws'    +++    [16:34 - 21.06.2018] MarquisDeSud solved the Level II challenge 'Cracking SHA1-Hashed Passwords'    +++    [16:15 - 21.06.2018] rnd solved the Level I challenge 'Homophonic Encryption Part 2'    +++    [14:55 - 21.06.2018] rnd solved the Level I challenge 'Homophonic Encryption Part 1'    +++