Level III Challenges (66)
Page 1 of the challenges in
Level III, ordered by date posted (the most recent appear first).
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Spirale is a OTP cipher designed to be simply performed by hand.
Part 4 is a ciphertext-only challenge with a 485-letter ciphertext.
Unlike the other three parts of this series, this one uses four new random keys. Read more...
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Author:
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Published on: 2015-08-23 19:11 |
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Maximum number of attempts for this challenge: 15 |
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