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Level I Challenges (85)

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

Lightweight Introduction to Lattices — Part 1

[dimitrov-esslinger-01] - 19 users already solved this challenge, 3 are working on it.
 
 
 

Lattice-based cryptography schemes are relevant for current post-quantum cryptography research. This challenge series accompanies the basic theory from a chapter of the CrypTool Book called "LIGHTWEIGHT INTRODUCTION TO LATTICES". In this part of the challenge series we introduce systems of linear equations to find a hidden message in a picture.
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Published on: 2020-05-16 16:03
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#19) Achieved points (Global score) y-m-d - h:m:s

Dominik M. (Sgt. Pepper) 200 (124749) 2020-05-16 16:52:00
Snake (snk) 200 (182494) 2020-05-16 20:07:33
Armin Krauss (argh) 200 (202814) 2020-05-16 20:32:03
Eugene (lim0n) 200 (123366) 2020-05-17 12:10:48
#5 Viktor (Veselovský) 200 (168147) 2020-05-17 14:15:42
#6 Nofre Tete (noffi) 150 (26357) 2020-05-18 00:57:46
#7 Mike (RogueRamblers) 133 (56507) 2020-05-18 22:27:35
#8 sarah b (silva) 120 (38114) 2020-05-20 20:02:05
#9 George (Theofanidis) 117 (119193) 2020-05-21 22:11:07
#10 Paula Olsen (paol) 117 (942) 2020-05-22 11:18:41
#11 Alain Collignon (vexilla72) 108 (118726) 2020-05-28 13:30:13
#12 Kurt Gebauer (Yokozuna) 108 (260506) 2020-05-28 13:59:54
#13 H. Lautenschlager (helmi) 108 (40435) 2020-05-28 14:20:02
#14 Benjamin Bartl (arenas) 105 (4864) 2020-06-07 13:24:39
#15 Stephan (Stephje1978) 103 (27064) 2020-06-20 01:42:13
#16 Bernd (tryone144) 102 (3869) 2020-06-25 17:44:57
#17 Em Doulgerakis (Greko) 102 (133365) 2020-07-02 23:25:26
#18 Derek Hatton (alfred_noble) 101 (21114) 2020-07-29 18:43:10
#19 Random Dude (rnd) 101 (98754) 2020-07-30 22:27:43
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   +++    [00:00 - 06.08.2020] Vermentis solved the Level I challenge 'Playfair with hints about the grid'    +++    [23:56 - 05.08.2020] Yokozuna solved the Level II challenge 'The SZ42 Challenge — Part 2'    +++    [23:21 - 05.08.2020] Tyler solved the Level I challenge 'Letter to the Templars — Part 2'    +++    [23:18 - 05.08.2020] Sgt. Pepper solved the Level II challenge 'The SZ42 Challenge — Part 2'    +++    [22:39 - 05.08.2020] Polaris solved the Level I challenge 'Trifid Cipher'    +++