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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).

Spirale — Part 4
[allard-04] - 0 users already solved this challenge.
 
 
 
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.
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Published on: 2015-08-23 19:11
Maximum number of attempts for this challenge: 15

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   +++    [01:47 - 02.08.2021] jerva solved the Level II challenge 'SIGABA CSP-2900 — Part 1'    +++    [00:40 - 02.08.2021] mochiorochi solved the Level I challenge 'Beaver Code'    +++    [22:51 - 01.08.2021] mochiorochi solved the Level I challenge 'A hidden word'    +++    [22:46 - 01.08.2021] mochiorochi solved the Level II challenge 'Letter to the Templars — Part 3'    +++    [22:05 - 01.08.2021] mochiorochi solved the Level I challenge 'Letter to the Templars — Part 2'    +++