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Level II Challenges (143)

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

Polyhomophonic Substitution — Part 3

[madness-03] - 10 users already solved this challenge.
 
 
 

This part of the challenge series introduces polyhomophonic substitution. In a polyhomophonic substitution cipher, each ciphertext symbol can represent one of several plaintext symbols, and each plaintext letter can be encrypted as one of several ciphertext letters. The key is a mapping from the set of plaintext symbols to the set of ciphertext symbols.
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Published on: 2020-04-06 20:44
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#10) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 2000 (196814) 2020-04-06 22:29:12
Snake (snk) 2000 (179397) 2020-04-07 08:54:32
Thomas (Thomas4897) 2000 (35941) 2020-04-07 14:25:54
Dominik M. (Sgt. Pepper) 2000 (119136) 2020-04-07 14:59:45
#5 Kurt Gebauer (Yokozuna) 2000 (254983) 2020-04-07 15:25:09
#6 Viktor (Veselovský) 2000 (166147) 2020-04-07 15:49:37
#7 J-L Morel (Rossignol) 1433 (37723) 2020-04-20 11:01:25
#8 D3d4lu5 (D3d4lu5) 1337 (343788) 2020-05-06 18:16:08
#9 George Lasry (george4096) 1310 (342650) 2020-05-14 23:52:33
#10 Norbert Biermann (Norbert) 1284 (47687) 2020-05-27 15:29:25
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   +++    [14:09 - 02.07.2020] py0neer solved the Level I challenge 'One-Time Pad with Flaws'    +++    [22:40 - 01.07.2020] DS8279 solved the Level I challenge 'Monoalphabetic Substitution'    +++    [17:29 - 01.07.2020] DS8279 solved the Level II challenge 'Letter to the Templars — Part 3'    +++    [17:17 - 01.07.2020] DS8279 solved the Level I challenge 'A hidden word'    +++    [17:10 - 01.07.2020] DS8279 solved the Level I challenge 'Letter to the Templars — Part 2'    +++