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Level III Challenges (74)
Page 1 of the challenges in Level III, 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. As in the first four 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. Read more...
Click here to get to the corresponding forum topic to share your opinion. Click here to download the challenge. Click here to download the additional file of the challenge. |
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