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Level III Challenges (65)

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

The SIGABA Challenge — Part 4

[lasry-29] - 2 users already solved this challenge.
 
 
 

The SIGABA was a highly secure encryption machine used by the US for strategic communications in WWII. As in the first three parts of this series of challenges, you are provided with a partial known-plaintext, and some information about the key settings. However, in this part you get even less information about the key.
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Published on: 2020-03-17 20:15
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#2) Achieved points (Global score) y-m-d - h:m:s

S Combes (jerva) 20000 (163132) 2020-03-17 20:56:40
Snake (snk) 18390 (170475) 2020-03-21 17:08:22
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   +++    [23:57 - 31.03.2020] lösbär solved the Level I challenge 'Number Sequence — Part 9'    +++    [23:39 - 31.03.2020] lösbär solved the Level I challenge 'Number Sequence — Part 6'    +++    [23:23 - 31.03.2020] ace2 solved the Level I challenge 'Cascading Encryption — Part 1/3'    +++    [18:24 - 31.03.2020] Rossignol solved the Level II challenge 'Homophonic Encryption — Part 4'    +++    [17:40 - 31.03.2020] lösbär solved the Level I challenge 'A hidden word — Part 2'    +++