MysteryTwister C3
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Level II Challenges (95)

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

Sigaba Part 1

[stamp-07] - 11 users already solved this challenge, 1 is working on it.
 
 
 

The encryption with the Sigaba machine was the American counterpart to the German Enigma. But due to the much larger key space of the Sigaba, even today, it is only feasible to break the code if parts of the key are known. This is what this challenge is about.
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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: 8

All successful users of this challenge

Rank User (#11) Achieved points (Global score) y-m-d - h:m:s

DirkS (Dustman) 1265 (8378) 2010-12-16 12:47:52
J. M. (jomandi) 1159 (113270) 2011-10-02 19:55:00
Luigi Tomelli (archstanton) 1117 (95549) 2013-08-26 12:14:11
Francisco Moraes (fmoraes) 1113 (90044) 2013-12-21 12:33:37
#5 Alain (Integral) 1112 (198642) 2014-02-27 22:00:07
#6 Kurt Gebauer (Yokozuna) 1109 (120839) 2014-05-27 00:23:06
#7 S Combes (jerva) 1103 (77932) 2015-04-10 11:18:30
#8 Armin Krauss (argh) 1100 (153843) 2015-10-14 13:58:05
#9 zahir mohsen moradi (ariobarzan) 1096 (99757) 2016-07-02 19:47:21
#10 Nicolas (nicosPavlov) 1094 (70954) 2016-12-18 01:40:06
#11 george lasry (george4096) 1093 (213462) 2017-06-06 23:14:10
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   +++    [14:09 - 23.06.2017] D3d4lu5 solved the Level II challenge 'Brute-Force-Attack on Triple-DES with Reduced Key Space'    +++    [07:55 - 23.06.2017] TheLion solved the Level I challenge 'Number Sequence — Part 2'    +++    [07:43 - 23.06.2017] TheLion solved the Level I challenge 'Original Caesar Cipher'    +++    [06:34 - 23.06.2017] TheLion solved the Level I challenge 'Number Sequence'    +++    [23:03 - 22.06.2017] george4096 solved the Level II challenge 'CMEA 1'    +++