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Level II Challenges (118)

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

Monoalphabetic Substitution with Nostradamus Flavor

[theofanidis-08] - 18 users already solved this challenge, 1 is working on it.
 
 
 

What would Nostradamus do to make a mono-alphabetic substitution harder to break?
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Published on: 2019-02-16 12:28
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#18) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 2000 (185115) 2019-02-16 13:26:09
D3d4lu5 (D3d4lu5) 2000 (273573) 2019-02-16 15:57:07
Dominik M. (Sgt. Pepper) 2000 (97919) 2019-02-16 19:22:15
George Lasry (george4096) 2000 (299488) 2019-02-16 21:43:46
#5 Viktor (Veselovský) 2000 (151602) 2019-02-16 23:02:15
#6 Alain Collignon (vexilla72) 2000 (87833) 2019-02-16 23:07:32
#7 Kurt Gebauer (Yokozuna) 2000 (153663) 2019-02-17 06:54:14
#8 Snake (snk) 1824 (77889) 2019-02-17 17:11:33
#9 Luigi Tomelli (archstanton) 1660 (108345) 2019-02-19 13:04:04
#10 Lane Williams (planetlane) 1660 (23948) 2019-02-19 16:02:06
#11 Random Dude (rnd) 1660 (88719) 2019-02-19 17:26:52
#12 Karl Schutt (günter) 1660 (41550) 2019-02-19 18:42:32
#13 sarah b (silva) 1613 (21031) 2019-02-20 15:14:33
#14 Pierre Robier (tripleedged) 1613 (5916) 2019-02-20 21:29:51
#15 Rainer Zufall (kiekuk) 1444 (56786) 2019-02-28 16:30:24
#16 E.T (Ertheb) 1261 (80720) 2019-04-23 17:55:37
#17 Hans Joachim Girulat (joregi) 1223 (35017) 2019-06-07 22:57:11
#18 Michael (FoM) 1217 (36772) 2019-06-18 17:17:19
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   +++    [10:48 - 24.06.2019] lim0n solved the Level I challenge 'Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1'    +++    [02:06 - 24.06.2019] Stephje1978 solved the Level I challenge 'Classical Ciphers^3'    +++    [20:50 - 23.06.2019] Stephje1978 solved the Level I challenge 'Monoalphabetic Substitution'    +++    [19:19 - 23.06.2019] Stephje1978 solved the Level II challenge 'Cracking SHA1-Hashed Passwords'    +++    [18:20 - 23.06.2019] Stephje1978 solved the Level I challenge 'From Russia with Love'    +++