Level I Challenges (89)

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

Wheatstone Cryptograph — Part 1

[madness-04] - 30 users already solved this challenge, 1 is working on it.

The Wheatstone Cryptograph is a simple device that resembles a clock with two hands. For each hand there is a ring of symbols.
Are you able to decrypt the given ciphertext?

Click here to get to the corresponding forum topic to share your opinion.

Click here to download the challenge.

Author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published on: 2021-04-21 19:17

Maximum number of attempts for this challenge: 10

All successful users of this challenge

Rank	User (#30)	Achieved points (Global score)	y-m-d - h:m:s

	Em Doulgerakis (Greko)	200 (193799)	2021-04-21 23:31:35
	Armin Krauss (argh)	200 (206965)	2021-04-21 23:36:27
	Kurt Gebauer (Yokozuna)	200 (282608)	2021-04-22 02:19:26
	Viktor (Veselovský)	200 (169444)	2021-04-22 02:20:36
#5	Eric (ExAstris)	200 (54941)	2021-04-22 06:01:24
#6	Eugene (lim0n)	200 (178540)	2021-04-22 12:34:35
#7	gordon (sir5)	200 (16181)	2021-04-22 12:55:16
#8	H. Lautenschlager (helmi)	200 (56470)	2021-04-22 14:01:36
#9	Alain Collignon (vexilla72)	200 (123666)	2021-04-22 15:14:19
#10	Michael Möller (michaelm)	150 (253196)	2021-04-22 19:50:52
#11	py0neer (py0neer)	150 (750)	2021-04-22 21:44:55
#12	Nofre Tete (noffi)	150 (26507)	2021-04-22 22:54:42
#13	George (Theofanidis)	150 (123216)	2021-04-23 00:31:11
#14	Snake (snk)	133 (187783)	2021-04-23 23:07:13
#15	Enigmatic (Enigmatic)	133 (11604)	2021-04-24 01:53:48
#16	Dominik M. (Sgt. Pepper)	125 (128575)	2021-04-25 12:55:25
#17	George Lasry (george4096)	125 (399565)	2021-04-25 16:37:30
#18	Luigi Tomelli (archstanton)	120 (127538)	2021-04-26 17:03:16
#19	Michael (FoM)	117 (57794)	2021-04-27 03:08:40
#20	Paul Taylor (thetinkitty)	117 (317)	2021-04-27 17:41:31
#21	Lane Williams (planetlane)	110 (34637)	2021-04-30 21:50:38
#22	Gábor (SirAbacus)	108 (5481)	2021-05-04 11:06:50
#23	Random Dude (rnd)	108 (103645)	2021-05-04 17:11:17
#24	JCR (Jericho)	106 (8470)	2021-05-09 10:32:34
#25	Claude Vaillancourt (Cl3v3r)	103 (44129)	2021-05-24 17:25:47
#26	Norbert Biermann (Norbert)	103 (47790)	2021-05-26 17:34:32
#27	sarah b (silva)	103 (47847)	2021-05-26 20:21:38
#28	Mike (RogueRamblers)	102 (75961)	2021-06-01 18:17:48
#29	Jhness (Jhness)	102 (102)	2021-06-05 23:53:43
#30	Somebody (Achidutzu)	102 (14883)	2021-06-09 16:01:36

You must be logged in to solve the challenge

Find the right route — Part 3

[veselovsky-19] - 16 users already solved this challenge, 3 are working on it.

This series deals with a grid — a basic tool cryptographers use to separate sequences of data into columns and rows. In this challenge you are given three grids where the first grid gives you hints to reveal the plaintext of the second grid. Are you able to find the right route?

Click here to get to the corresponding forum topic to share your opinion.

Click here to download the challenge.

Click here to download the additional file of the challenge.

Author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published on: 2020-12-26 18:24

Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank	User (#16)	Achieved points (Global score)	y-m-d - h:m:s

	Dominik M. (Sgt. Pepper)	200 (128575)	2020-12-26 19:53:41
	Eugene (lim0n)	200 (178540)	2020-12-27 13:56:01
	Armin Krauss (argh)	200 (206965)	2020-12-27 15:51:21
	Kurt Gebauer (Yokozuna)	200 (282608)	2020-12-27 17:23:35
#5	S (Zyphe)	150 (13361)	2020-12-28 08:37:37
#6	Ines (bufo01)	150 (5676)	2020-12-28 15:15:43
#7	Michael (FoM)	125 (57794)	2020-12-30 02:32:24
#8	sarah b (silva)	108 (47847)	2021-01-08 15:35:18
#9	George (Theofanidis)	107 (123216)	2021-01-08 19:40:10
#10	Em Doulgerakis (Greko)	107 (193799)	2021-01-09 13:39:50
#11	D3d4lu5 (D3d4lu5)	103 (363488)	2021-01-24 21:22:26
#12	madness (madness)	102 (71592)	2021-02-18 02:35:33
#13	Hughes (hughes)	102 (8430)	2021-02-19 03:55:56
#14	Fabian (XP-72)	101 (4110)	2021-03-25 23:18:51
#15	gordon (sir5)	101 (16181)	2021-04-21 08:58:48
#16	Eric (ExAstris)	101 (54941)	2021-05-15 22:53:44

You must be logged in to solve the challenge

Find the right route — Part 2

[veselovsky-18] - 20 users already solved this challenge.

This series deals with a grid — a basic tool cryptographers use to separate sequences of data into columns and rows. In this challenge you are given four grids where the first grid gives you hints to reveal the plaintext of the second grid. Are you able to find the right route?

Click here to get to the corresponding forum topic to share your opinion.

Click here to download the challenge.

Click here to download the additional file of the challenge.

Author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published on: 2020-12-19 16:53

Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank	User (#20)	Achieved points (Global score)	y-m-d - h:m:s

	S (Zyphe)	200 (13361)	2020-12-19 20:13:14
	Dominik M. (Sgt. Pepper)	200 (128575)	2020-12-19 20:13:43
	Eugene (lim0n)	200 (178540)	2020-12-20 12:44:21
	Em Doulgerakis (Greko)	111 (193799)	2020-12-27 19:25:00
#5	Ines (bufo01)	111 (5676)	2020-12-28 12:33:39
#6	Michael (FoM)	110 (57794)	2020-12-29 01:11:57
#7	sarah b (silva)	107 (47847)	2021-01-03 10:33:24
#8	George (Theofanidis)	106 (123216)	2021-01-03 20:42:31
#9	D3d4lu5 (D3d4lu5)	103 (363488)	2021-01-24 21:21:28
#10	Daniel Richter (TheHiveMind)	102 (11450)	2021-02-07 22:01:03
#11	madness (madness)	102 (71592)	2021-02-17 07:00:07
#12	Hughes (hughes)	102 (8430)	2021-02-18 01:34:05
#13	Jörg Schwarzwälder (secuso)	101 (2827)	2021-02-27 18:07:14
#14	Bernd (tryone144)	101 (8066)	2021-04-01 18:08:43
#15	Armin Krauss (argh)	101 (206965)	2021-04-02 11:45:05
#16	Claus Appelt (Konubixe)	101 (8066)	2021-04-07 21:51:16
#17	gordon (sir5)	101 (16181)	2021-04-08 10:30:59
#18	anonym404 (anonym404)	101 (2789)	2021-04-15 18:44:37
#19	Random Dude (rnd)	101 (103645)	2021-05-05 20:42:41
#20	Eric (ExAstris)	101 (54941)	2021-05-13 05:33:23

You must be logged in to solve the challenge

Find the right route — Part 1

[veselovsky-17] - 44 users already solved this challenge, 4 are working on it.

This series deals with a grid — a basic tool cryptographers use to separate sequences of data into columns and rows. In this challenge you are given two grids where the first grid gives you hints to reveal the plaintext of the second grid. Are you able to find the right route?

Click here to get to the corresponding forum topic to share your opinion.

Click here to download the challenge.

Click here to download the additional file of the challenge.

Author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published on: 2020-10-27 17:01

Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank	User (#44)	Achieved points (Global score)	y-m-d - h:m:s

	Dominik M. (Sgt. Pepper)	200 (128575)	2020-10-27 17:54:44
	Armin Krauss (argh)	200 (206965)	2020-10-27 19:01:03
	Kurt Gebauer (Yokozuna)	200 (282608)	2020-10-27 20:13:26
	Snake (snk)	200 (187783)	2020-10-27 20:36:50
#5	H. Lautenschlager (helmi)	200 (56470)	2020-10-27 22:42:13
#6	Derek Hatton (alfred_noble)	200 (33998)	2020-10-28 01:45:26
#7	S (Zyphe)	200 (13361)	2020-10-28 08:56:33
#8	Ines (bufo01)	200 (5676)	2020-10-28 09:04:58
#9	Eugene (lim0n)	200 (178540)	2020-10-28 09:35:57
#10	sarah b (silva)	200 (47847)	2020-10-28 10:18:25
#11	Mike (RogueRamblers)	200 (75961)	2020-10-28 16:33:54
#12	Michael Möller (michaelm)	150 (253196)	2020-10-28 19:57:16
#13	Phil Taylor (philthy)	150 (650)	2020-10-29 11:47:09
#14	Lane Williams (planetlane)	125 (34637)	2020-10-30 22:52:59
#15	Alain Collignon (vexilla72)	113 (123666)	2020-11-03 20:09:33
#16	Steve (Samacian)	111 (23915)	2020-11-05 05:57:38
#17	Aliazer (Aliazer)	107 (12521)	2020-11-11 14:07:07
#18	Joerg G. (SnifferMaster)	105 (18376)	2020-11-16 18:04:14
#19	George (Theofanidis)	104 (123216)	2020-11-21 22:35:33
#20	Michael (FoM)	103 (57794)	2020-12-05 00:25:56
#21	Fabian (XP-72)	102 (4110)	2020-12-11 01:29:22
#22	Random Dude (rnd)	102 (103645)	2020-12-16 19:30:34
#23	Anabel Roschmann (Beltiona Mousa)	102 (4919)	2020-12-17 04:48:08
#24	Em Doulgerakis (Greko)	102 (193799)	2020-12-27 12:57:19
#25	D3d4lu5 (D3d4lu5)	102 (363488)	2020-12-29 19:40:47
#26	Arno (TryC3)	101 (6847)	2021-01-03 16:35:13
#27	Jean-Francois (Muskrat)	101 (19013)	2021-01-04 21:01:14
#28	Karl Schutt (günter)	101 (44374)	2021-02-07 15:03:00
#29	Daniel Richter (TheHiveMind)	101 (11450)	2021-02-07 21:27:16
#30	madness (madness)	101 (71592)	2021-02-17 06:13:02
#31	Hughes (hughes)	101 (8430)	2021-02-17 17:52:43
#32	Somebody (Achidutzu)	101 (14883)	2021-02-18 14:15:26
#33	Jörg Schwarzwälder (secuso)	101 (2827)	2021-02-27 14:17:34
#34	m (umsyt)	101 (9300)	2021-03-11 00:30:10
#35	Claus Appelt (Konubixe)	101 (8066)	2021-03-25 17:48:46
#36	Immo Weber (MandelToast)	101 (10362)	2021-03-25 20:37:49
#37	gordon (sir5)	101 (16181)	2021-04-06 12:58:57
#38	anonym404 (anonym404)	101 (2789)	2021-04-11 09:39:42
#39	Michael Ammon (Ammonym)	101 (10120)	2021-04-27 23:00:44
#40	Eric (ExAstris)	101 (54941)	2021-04-30 01:16:38
#41	JCR (Jericho)	101 (8470)	2021-05-10 22:57:09
#42	Luigi Tomelli (archstanton)	100 (127538)	2021-05-20 19:43:26
#43	George Lasry (george4096)	100 (399565)	2021-06-11 15:27:29

You must be logged in to solve the challenge

Lightweight Introduction to Lattices — Part 2

[dimitrov-esslinger-02] - 26 users already solved this challenge, 2 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". This part of the challenge series uses vectors to hide a famous quote in modern art. Can you reveal it?

Click here to get to the corresponding forum topic to share your opinion.

Click here to download the challenge.

Authors: This email address is being protected from spambots. You need JavaScript enabled to view it.,This email address is being protected from spambots. You need JavaScript enabled to view it.

Published on: 2020-06-23 23:05

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

	Kurt Gebauer (Yokozuna)	200 (282608)	2020-06-24 01:42:06
	S (Zyphe)	200 (13361)	2020-06-24 09:52:41
	Dominik M. (Sgt. Pepper)	200 (128575)	2020-06-24 09:55:36
	Armin Krauss (argh)	200 (206965)	2020-06-24 10:00:32
#5	Snake (snk)	200 (187783)	2020-06-24 10:36:03
#6	H. Lautenschlager (helmi)	200 (56470)	2020-06-24 11:27:18
#7	Eugene (lim0n)	200 (178540)	2020-06-24 11:44:34
#8	Alain Collignon (vexilla72)	200 (123666)	2020-06-24 12:58:41
#9	Bernd (tryone144)	150 (8066)	2020-06-25 18:58:43
#10	Viktor (Veselovský)	120 (169444)	2020-06-28 11:13:28
#11	Nofre Tete (noffi)	104 (26507)	2020-07-20 21:59:39
#12	Derek Hatton (alfred_noble)	103 (33998)	2020-07-31 22:25:54
#13	Tristan1473 (Tristan1473)	102 (20432)	2020-08-22 12:31:09
#14	Polaris (Polaris)	102 (32963)	2020-08-26 01:24:11
#15	sarah b (silva)	102 (47847)	2020-08-28 09:38:17
#16	George (Theofanidis)	101 (123216)	2020-08-29 21:12:04
#17	Klaus (kumaus)	101 (22017)	2020-10-17 18:47:10
#18	Flo (sealth)	101 (25734)	2020-11-15 20:35:00
#19	Arno (TryC3)	101 (6847)	2020-12-16 18:50:05
#20	Michael (FoM)	101 (57794)	2020-12-18 23:24:27
#21	D3d4lu5 (D3d4lu5)	101 (363488)	2020-12-29 19:43:55
#22	Gerd Wilts (gerdw)	100 (50534)	2021-02-07 22:23:58
#23	Em Doulgerakis (Greko)	100 (193799)	2021-03-01 18:40:18
#24	Luigi Tomelli (archstanton)	100 (127538)	2021-05-18 18:27:09
#25	gordon (sir5)	100 (16181)	2021-05-19 07:26:36
#26	madness (madness)	100 (71592)	2021-06-13 01:32:23

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