MysteryTwister C3
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Level X Challenges (18)

Page 3 of the challenges in Level X, ordered by date posted (the most recent appear first).

Kryptos

[schmeh-05] - 0 users already solved this challenge.
 
 
 

Kryptos is a sculpture made by the US artist Jim Sanborn. It is located next to the headquarters of the CIA in Langley, VA. An encrypted message was written on the sculpture. The message consists of four independent parts.

The first three parts have been solved, but the fourth one has so far withstood every attempt at decryption.
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Published on: 2010-10-14 13:30
Maximum number of attempts for this challenge: 0

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Double Column Transposition

[schmeh-03] - 2 users already solved this challenge.
 
 
 

The double columnar transposition is considered one of the best manual encryption systems. Many secret organizations have made use of it or still use it today. As there are only a few publications on this method, it is not clear if and how a well-constructed double transposition cipher can be broken.
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Published on: 2010-10-14 13:30
Maximum number of attempts for this challenge: 0

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

George Lasry (george4096) 11000 (302230) 2013-11-26 17:23:24
Jim Gillogly (Scryer) 10000 (21260) 2013-12-31 13:58:23
The solution for this challenge was made public on 2014-06-13, and thus it is not possible to get points for this challenge any more. However, you can still solve and enter a solution for this challenge. If you believe you have the solution, you can still write us an email.
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Dorabella

[schmeh-01] - 0 users already solved this challenge.
 
 
 

In 1897, the English composer Edward Elgar sent an encrypted message to a lover. So far, nobody has been able to decrypt it. This message is known today as the "Dorabella Cipher".
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Published on: 2010-10-14 13:30
Maximum number of attempts for this challenge: 0

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Notes of an Italian Soldier

[schroedel-03] - 4 users already solved this challenge.
 
 
 

During World War II, the Italian solider Antonio Marzi worked as a radio operator. He created more than 230 pages full of enciphered notes about his experiences. Unfortunately, he forgot one step of his enciphering method. Still today, his records have never been decrypted.
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2010-10-14 13:30
Maximum number of attempts for this challenge: 0

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Rank User (#4) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 3000 (188214) 2013-02-18 19:59:00
Viktor (Veselovský) 800 (155163) 2013-05-04 22:57:00
J. M. (jomandi) 800 (113270) 2013-05-19 13:45:00
George Lasry (george4096) 800 (302230) 2013-12-12 15:07:29
The solution for this challenge was made public on 2014-01-25, and thus it is not possible to get points for this challenge any more. However, you can still solve and enter a solution for this challenge. If you believe you have the solution, you can still write us an email.
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Beale Ciphers

[schmeh-04] - 1 user already solved this challenge.
 
 
 

In 1885, the US businessman James Ward published a booklet about an allegedly true story of a hidden treasure. According to the story, in 1823, a man named Thomas Beale hid several tons of gold and silver in a secret place and described the location of it in three encrypted messages. One of these messages was cracked, but it doesn't contain enough information to locate the treasure.

The two other messages are unsolved.
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2010-10-14 13:30
Maximum number of attempts for this challenge: 0

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Rank User (#1) Achieved points (Global score) y-m-d - h:m:s

Seth Kintigh (DarkFibre) 150 (79471) 2011-06-14 04:10:00
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   +++    [13:53 - 21.09.2019] weiting solved the Level II challenge 'RSA: Two different keys — same ciphertext'    +++    [11:13 - 21.09.2019] lim0n solved the Level I challenge 'The Last Note'    +++    [23:26 - 20.09.2019] rekondo solved the Level I challenge 'Original Caesar Cipher'    +++    [23:18 - 20.09.2019] rekondo solved the Level I challenge 'Number Sequence'    +++    [22:53 - 20.09.2019] ibex solved the Level I challenge 'Advent-Challenge — Part 1'    +++