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Level I Challenges (89)

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

Cryptanalysis Hacking Puzzles — Part 1

[martins-01] - 26 users already solved this challenge, 27 are working on it.
 
 
 

Three messages were delivered — two encrypted, one in clear. Can you solve the puzzle?
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2018-10-26 20:33
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#26) Achieved points (Global score) y-m-d - h:m:s

Viktor (Veselovský) 200 (169444) 2018-10-26 22:47:28
D3d4lu5 (D3d4lu5) 200 (363488) 2018-10-27 08:18:21
Dominik M. (Sgt. Pepper) 200 (128575) 2018-10-27 14:30:52
Random Dude (rnd) 150 (103645) 2018-10-28 01:43:34
#5 Snake (snk) 150 (187783) 2018-10-28 17:45:23
#6 E.T (Ertheb) 150 (81809) 2018-10-28 18:58:04
#7 Armin Krauss (argh) 117 (206965) 2018-11-01 19:25:26
#8 Rainer Zufall (kiekuk) 113 (56786) 2018-11-03 12:57:49
#9 Kurt Gebauer (Yokozuna) 113 (286256) 2018-11-03 15:32:07
#10 H. Lautenschlager (helmi) 113 (57600) 2018-11-03 17:33:23
#11 Alain Collignon (vexilla72) 111 (123666) 2018-11-04 11:04:29
#12 Hans Peter (hanspeter) 108 (52356) 2018-11-08 18:35:37
#13 Johnatan (RazorBest) 103 (1105) 2018-12-03 17:38:42
#14 Michael (FoM) 102 (57794) 2018-12-27 19:40:37
#15 S (Zyphe) 101 (13361) 2019-01-13 16:47:18
#16 v1k1ng (v1k1ng) 101 (101) 2019-01-21 22:25:16
#17 Hughes (hughes) 101 (8430) 2019-04-30 09:51:16
#18 Hans Joachim Girulat (joregi) 100 (36278) 2019-05-28 15:38:03
#19 Eugene (lim0n) 100 (199334) 2019-06-12 11:03:04
#20 david (sexton) 100 (2801) 2019-07-01 10:52:43
#21 J-L Morel (Rossignol) 100 (42130) 2019-08-10 17:08:53
#22 Luigy (Luigy) 100 (402) 2020-02-09 16:44:05
#23 Mike (RogueRamblers) 100 (81614) 2020-05-18 23:47:00
#24 DS (DS8279) 100 (34191) 2020-09-04 16:00:34
#25 Enigmatic (Enigmatic) 100 (11604) 2020-10-31 06:27:00
#26 Luigi Tomelli (archstanton) 100 (127538) 2021-05-18 10:12:16
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   +++    [22:12 - 18.10.2021] NikM solved the Level I challenge 'Wheatstone Cryptograph — Part 1'    +++    [18:43 - 18.10.2021] TaRaSS solved the Level I challenge 'Affine Codes / Modulo Arithmetic with N / Extended Euclid'    +++    [17:10 - 18.10.2021] tAnAs solved the Level I challenge 'Letter to the Templars — Part 2'    +++    [16:42 - 18.10.2021] TaRaSS solved the Level I challenge 'Beaver Code'    +++    [16:23 - 18.10.2021] TaRaSS solved the Level I challenge 'Number Sequence — Part 2'    +++