Level II Challenges (152)
Page 1 of the challenges in
Level II, ordered by date posted (the most recent appear first).
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The SIGABA was a highly secure encryption machine used by the US for strategic communications in WWII. It is believed that the German codebreakers were unable to make any inroads against SIGABA. In this part of the series of challenges, you are provided with a partial known-plaintext, and some information about the key settings. Read more...
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Author:
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Published on: 2020-02-29 12:29 |
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Maximum number of attempts for this challenge: 15 |
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All successful users of this challenge
| Rank |
User (#7) |
Achieved points (Global score) |
y-m-d - h:m:s |
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S Combes (jerva)
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2000 (170300) |
2020-02-29 17:14:45 |
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Dominik M. (Sgt. Pepper)
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1576 (126949) |
2020-03-06 02:41:04 |
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Kurt Gebauer (Yokozuna)
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1523 (272706) |
2020-03-08 05:38:58 |
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Snake (snk)
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1373 (187650) |
2020-03-21 14:15:47 |
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#5 |
D3d4lu5 (D3d4lu5)
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1349 (343788) |
2020-03-26 17:55:38 |
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#6 |
Nicolas (nicosPavlov)
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1198 (257791) |
2020-08-13 13:47:40 |
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#7 |
Eugene (lim0n)
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1190 (167387) |
2020-09-06 18:11:16 |
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