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 3

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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 third part a German plaintext has been encrypted with random keys.
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Published on: 2013-12-11 20:11
Maximum number of attempts for this challenge: 15

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   +++    [13:26 - 22.07.2017] Godfrey solved the Level I challenge 'Number Sequence — Part 2'    +++    [13:24 - 22.07.2017] Theofanidis solved the Level II challenge 'RSA Factoring Challenge: RSA-220'    +++    [13:21 - 22.07.2017] Godfrey solved the Level I challenge 'Original Caesar Cipher'    +++    [13:12 - 22.07.2017] Godfrey solved the Level I challenge 'Number Sequence'    +++    [13:03 - 22.07.2017] Akonia12 solved the Level II challenge 'RSA: Two different keys — same ciphertext'    +++