Level I Challenges (84)
Page 1 of the challenges in
Level I, ordered by date posted (the most recent appear first).
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Alice and Bob use the cipher as it had been described in part 3 of this challenge. Due to an error one message has been encrypted and sent twice. Does this help you to find out the shared key and enables you to decrypt a third message easily? Read more...
Click here to get to the corresponding forum topic to share your opinion.
Click here to download the challenge.
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Author:
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Published on: 2011-12-21 13:50 |
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Maximum number of attempts for this challenge: 15 |
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All successful users of this challenge
| Rank |
User (#44) |
Achieved points (Global score) |
y-m-d - h:m:s |
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Armin Krauss (argh)
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200 (196614) |
2011-12-21 23:01:38 |
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Nathan (Witten)
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200 (25326) |
2011-12-22 11:32:59 |
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Bart den Hartog (Bart13)
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200 (148936) |
2011-12-22 13:18:58 |
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J. M. (jomandi)
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150 (113270) |
2011-12-22 18:04:13 |
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#5 |
Wombat (Wombat)
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106 (5822) |
2012-01-08 13:06:15 |
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#6 |
Martin Härterich (HaeM)
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102 (15149) |
2012-01-31 15:34:34 |
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#7 |
Seth Kintigh (DarkFibre)
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101 (79471) |
2012-02-28 20:32:45 |
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#8 |
Michael Möller (michaelm)
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101 (221817) |
2012-04-22 09:46:42 |
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#9 |
Michel Van Caneghem (vancan)
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101 (49719) |
2012-06-16 19:15:24 |
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#10 |
Kurt Gebauer (Yokozuna)
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101 (254783) |
2012-07-01 00:45:38 |
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#11 |
Stepan (m1sterx)
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100 (19165) |
2012-08-01 22:31:58 |
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#12 |
Keith Randall (randall77)
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100 (31011) |
2012-10-09 17:08:31 |
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#13 |
Hans Peter (hanspeter)
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100 (52356) |
2012-11-09 18:25:03 |
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#14 |
Almut (problelmo)
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100 (45992) |
2013-05-19 08:35:56 |
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#15 |
Em Doulgerakis (Greko)
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100 (131437) |
2013-08-13 15:19:27 |
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#16 |
zahir mohsen moradi (ariobarzan)
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100 (99757) |
2013-09-16 15:19:18 |
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#17 |
chris_3stones (3stones)
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100 (38845) |
2013-12-29 19:40:12 |
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#18 |
George (Theofanidis)
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100 (117369) |
2013-12-29 19:41:51 |
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#19 |
Alain (Integral)
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100 (207924) |
2014-01-04 12:15:04 |
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#20 |
Dusan (xxdradus)
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100 (40436) |
2014-02-17 08:19:36 |
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#21 |
Lena Meier (aurelie)
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100 (624) |
2014-07-15 13:50:27 |
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#22 |
Snake (snk)
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100 (178106) |
2014-07-16 12:27:56 |
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#23 |
Francisco Moraes (fmoraes)
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100 (90044) |
2014-11-13 15:49:35 |
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#24 |
HolgerK (HolgerK)
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100 (25776) |
2015-05-14 00:13:21 |
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#25 |
Andreas Frerichs (Ossili)
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100 (33266) |
2015-07-12 20:53:08 |
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#26 |
Robert (rm)
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100 (56475) |
2015-07-24 15:59:19 |
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#27 |
E.T (Ertheb)
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100 (81809) |
2015-09-11 16:29:09 |
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#28 |
Szabó Zoltán (szabo.z87)
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100 (55604) |
2015-12-24 19:02:32 |
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#29 |
Rainer Zufall (kiekuk)
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100 (56786) |
2016-01-19 11:49:40 |
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#30 |
Peter (Garnet)
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100 (14234) |
2016-07-11 16:42:53 |
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#31 |
Bernhard Gruber (bgr)
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100 (22889) |
2016-08-24 14:07:30 |
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#32 |
Norbert Biermann (Norbert)
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100 (47687) |
2016-09-06 10:48:43 |
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#33 |
Nicolas (nicosPavlov)
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100 (151166) |
2016-11-21 12:53:04 |
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#34 |
Alain Collignon (vexilla72)
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100 (116602) |
2016-11-22 20:25:37 |
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#35 |
Dominik M. (Sgt. Pepper)
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100 (118936) |
2017-04-04 13:29:47 |
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#36 |
D3d4lu5 (D3d4lu5)
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100 (343788) |
2017-07-15 18:22:47 |
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#37 |
George Lasry (george4096)
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100 (342650) |
2017-07-30 19:23:28 |
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#38 |
Random Dude (rnd)
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100 (98653) |
2018-09-24 20:39:57 |
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#39 |
clyto (clytorock)
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100 (3595) |
2018-11-04 14:59:28 |
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#40 |
Michael (FoM)
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100 (38953) |
2019-02-03 13:36:30 |
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#41 |
gerdw (gerdw)
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100 (38113) |
2019-07-29 21:23:25 |
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#42 |
Eugene (lim0n)
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100 (113902) |
2019-10-21 13:41:58 |
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#43 |
madness (madness)
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100 (50496) |
2020-02-18 02:33:06 |
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#44 |
sarah b (silva)
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100 (37027) |
2020-06-06 11:13:15 |
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