MysteryTwister C3
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Level II Challenges (93)

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

Weakened Handycipher — Part 5

[kallick-19] - 2 users already solved this challenge.
 
 
 

The Weakened Handycipher challenges serve as an exercise and use an intentionally weakened version of Handycipher. Part 5 is the same as Part 2, but uses an improved version of the cipher. It is ciphertext-only, but you are given some partial information about the key.
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Published on: 2016-06-28 20:10
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#2) Achieved points (Global score) y-m-d - h:m:s

Michael Möller (michaelm) 1337 (117401) 2016-07-28 16:36:55
Alain (Integral) 1310 (198642) 2016-08-06 16:25:46
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   +++    [10:48 - 30.03.2017] seltuna solved the Level I challenge 'Original Caesar Cipher'    +++    [23:45 - 29.03.2017] c2 solved the Level I challenge 'Classical Ciphers^3'    +++    [23:05 - 29.03.2017] c2 solved the Level II challenge 'Lunchtime Attack on the Fully Homomorphic Encryption Scheme'    +++    [18:20 - 29.03.2017] indojab solved the Level I challenge 'Original Caesar Cipher'    +++    [17:17 - 29.03.2017] indojab solved the Level I challenge 'Number Sequence'    +++