MysteryTwister C3
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Level III Challenges (57)

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

Double Column Transposition Reloaded — Part 1

[wacker-08] - 0 users already solved this challenge, 2 are working on it.
 
 
 

The double columnar transposition is considered to be one of the best manual encryption systems. This sequence considers vulnerabilities that have been used to solve the corresponding level X challenge. The three challenges of the sequence have an increasing difficulty. In the first part an English plaintext has been encrypted with keys derived from English sentences.
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Published on: 2013-12-11 20:09
Maximum number of attempts for this challenge: 15

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   +++    [11:06 - 30.03.2017] seltuna solved the Level I challenge 'Number Sequence — Part 2'    +++    [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'    +++