MysteryTwister C3
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Level III Challenges (72)

Page 15 of the challenges in Level III, ordered by date posted (the most recent appear first).

World Record Challenge: Break 65 Bits of AES

[schmeh-07] - 0 users already solved this challenge, 5 are working on it.
 
 
 

The longest key that has ever been publicly cracked by exhaustive key search was 64 bits long. The purpose of this challenge is to improve this world record by one bit.
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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: 50

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Sigaba Part 2

[stamp-06] - 4 users already solved this challenge.
 
 
 

Decrypt the given ciphertext which is encrypted with the Sigaba machine.
Please give the letters in the key as capital letters.

This challenge has solutions that cannot be automatically checked. If you find such a solution and want to receive your points please write us an E-Mail.
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Click here to download the additional file of the challenge.

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: 5

All successful users of this challenge

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

S Combes (jerva) 13432 (218893) 2015-04-17 19:12:08
Alain (Integral) 13397 (207924) 2015-08-26 15:54:15
George Lasry (george4096) 13258 (372955) 2017-06-08 06:55:11
Eugene (lim0n) 13091 (175225) 2020-09-15 18:36:25
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   +++    [00:18 - 16.04.2021] FoM solved the Level II challenge 'Unusual encryption using a diophantine equation'    +++    [00:03 - 16.04.2021] Ammonym solved the Level I challenge 'Advent-Challenge — Part 1'    +++    [18:44 - 15.04.2021] anonym404 solved the Level I challenge 'Find the right route — Part 2'    +++    [18:38 - 15.04.2021] sir5 solved the Level I challenge 'Modified Caesar Cipher'    +++    [06:25 - 15.04.2021] sir5 solved the Level I challenge 'Affine Codes / Modulo Arithmetic with N / Extended Euclid'    +++