MysteryTwister C3
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Level I Challenges (82)

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

Autokey Cipher

[cli-02] - 76 users already solved this challenge, 4 are working on it.
 
 
 

The autokey cipher uses only a short keyword and the plaintext to encrypt messages. Are you able to break the given ciphertext?
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2018-09-25 14:21
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#76) Achieved points (Global score) y-m-d - h:m:s

Snake (snk) 200 (77889) 2018-09-25 16:08:04
Viktor (Veselovský) 200 (151602) 2018-09-25 22:11:53
Michael Möller (michaelm) 200 (173129) 2018-09-25 22:32:51
Kurt Gebauer (Yokozuna) 200 (153663) 2018-09-26 02:53:02
#5 Armin Krauss (argh) 200 (185115) 2018-09-26 09:50:09
#6 H. Lautenschlager (helmi) 150 (32747) 2018-09-26 19:27:39
#7 Random Dude (rnd) 150 (88719) 2018-09-26 20:28:17
#8 Em Doulgerakis (Greko) 150 (124033) 2018-09-26 20:50:58
#9 Alain Collignon (vexilla72) 150 (87833) 2018-09-27 11:05:50
#10 Dominik M. (Sgt. Pepper) 150 (97919) 2018-09-27 11:50:12
#11 Nicolas (nicosPavlov) 133 (151166) 2018-09-27 18:41:45
#12 D3d4lu5 (D3d4lu5) 133 (273573) 2018-09-28 06:16:40
#13 Murat Kaya (mksecurity) 133 (133) 2018-09-28 08:50:51
#14 Joerg G. (SnifferMaster) 125 (18154) 2018-09-28 15:52:36
#15 E.T (Ertheb) 125 (80720) 2018-09-28 16:50:20
#16 Joachim Kessel (joe_counter) 120 (229) 2018-09-29 15:00:43
#17 George (Theofanidis) 120 (109124) 2018-09-29 17:44:10
#18 sarah b (silva) 117 (21031) 2018-10-01 10:03:13
#19 S (Zyphe) 114 (10461) 2018-10-01 16:30:16
#20 Lane Williams (planetlane) 113 (23948) 2018-10-02 18:45:46
#21 Jörg Schwarzwälder (secuso) 113 (2125) 2018-10-02 22:31:54
#22 Marc (rcll0891) 113 (24004) 2018-10-02 22:50:57
#23 Dodo (Dodo) 111 (2335) 2018-10-03 23:13:57
#24 HowarthStudios (HowarthStudios) 110 (3596) 2018-10-04 18:57:11
#25 kelalaka (kelalaka) 108 (417) 2018-10-06 16:20:34
#26 Javantea (Javantea) 108 (40816) 2018-10-08 03:03:57
#27 Luigi Tomelli (archstanton) 107 (108345) 2018-10-09 09:55:33
#28 Nofre Tete (noffi) 106 (21921) 2018-10-11 00:10:28
#29 Arbacle Clemens (arbacle) 106 (2502) 2018-10-12 21:47:20
#30 Ekrem Aydin (Eko115) 105 (1105) 2018-10-14 15:12:37
#31 Pavel Kessler (pavel) 105 (5096) 2018-10-14 23:31:28
#32 j.h. (haegarq) 104 (15252) 2018-10-17 14:31:21
#33 Roland Jansen (roland) 104 (17607) 2018-10-20 10:17:11
#34 jusb3 (jusb3) 103 (2199) 2018-10-25 17:22:24
#35 João Vaz Martins (Awakening Star) 103 (4561) 2018-10-28 12:15:47
#36 Christian (gizmore) 103 (204) 2018-10-29 21:59:44
#37 Rainer Zufall (kiekuk) 103 (56786) 2018-10-29 22:51:17
#38 clyto (clytorock) 103 (3195) 2018-11-03 13:42:10
#39 Hans Peter (hanspeter) 102 (52256) 2018-11-08 18:43:25
#40 madness (madness) 102 (15407) 2018-11-15 02:30:32
#41 steven (steven18) 102 (3091) 2018-11-25 13:56:37
#42 Karl Schutt (günter) 101 (41550) 2018-12-02 08:45:33
#43 Johnatan (RazorBest) 101 (1105) 2018-12-03 18:06:20
#44 zuben c3 (zuben-c3) 101 (24853) 2018-12-17 19:42:41
#45 DirkS (Dustman) 101 (8479) 2018-12-18 14:06:12
#46 Dev Kalra (0__0) 101 (1490) 2018-12-22 18:38:39
#47 fm92 (fm92) 101 (601) 2018-12-24 11:44:39
#48 Bertolo (Bertolo) 101 (7167) 2018-12-24 14:34:03
#49 Ein-beispiel (Ein-beispiel) 101 (301) 2018-12-30 23:25:55
#50 Pierre Robier (tripleedged) 101 (5916) 2019-01-02 23:49:13
#51 Epeli (Epeli) 101 (3084) 2019-01-04 23:58:11
#52 Szabó Zoltán (szabo.z87) 101 (55604) 2019-01-07 10:50:44
#53 Michael (FoM) 101 (36772) 2019-01-15 01:34:57
#54 mglarragan (mglarragan) 101 (2091) 2019-01-20 11:02:50
#55 Oliver H (AlfheriH) 101 (804) 2019-02-23 15:07:06
#56 George Lasry (george4096) 101 (299488) 2019-02-23 20:06:46
#57 Raudah (Sandouk) 101 (301) 2019-03-05 20:33:00
#58 Ulrich Dorobeck (Papageno) 101 (3827) 2019-03-05 22:32:20
#59 Somebody (Achidutzu) 101 (2796) 2019-03-15 22:17:42
#60 Selma Metin (seltuna) 101 (902) 2019-03-28 14:58:12
#61 Sebastian Slupina (Grandwizard) 101 (10866) 2019-03-31 23:23:12
#62 Christian (Zettorino) 101 (502) 2019-04-04 11:04:03
#63 Darchicourt (Darki) 101 (3308) 2019-04-09 11:27:52
#64 Kame Kaze (kamekazeman) 100 (301) 2019-04-18 16:58:27
#65 Hughes (hughes) 100 (7925) 2019-04-30 10:59:39
#66 Beamofoldlight (Beamofoldlight) 100 (3745) 2019-05-06 19:48:16
#67 Luth (Luthorien) 100 (800) 2019-05-15 12:24:15
#68 Norbert Biermann (Norbert) 100 (45031) 2019-05-17 16:43:09
#69 Martin (LordMartin) 100 (402) 2019-05-21 15:39:54
#70 Hans Joachim Girulat (joregi) 100 (35017) 2019-05-23 19:57:01
#71 Jeff (Fountain) 100 (7385) 2019-05-25 22:40:17
#72 Mark Bedaywi (Supermac30) 100 (200) 2019-05-26 17:25:55
#73 Jörg Höpfner (hpjulianum) 100 (100) 2019-06-16 19:53:21
#74 Danny Higgins (hamster147) 100 (33007) 2019-06-19 12:01:06
#75 Mike (RogueRamblers) 100 (20946) 2019-06-22 01:28:02
#76 Piotr (lesnik7) 100 (8171) 2019-06-22 12:43:46
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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'    +++