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Level III Challenges (72)

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

The SIGABA Challenge — Part 6

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The SIGABA was a highly secure encryption machine used by the US for strategic communications in WWII. As in the first five parts of this series of challenges, you are provided with a partial known-plaintext. However, in this part you get no information about the key.
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Published on: 2020-04-05 18:47
Maximum number of attempts for this challenge: 15

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