MysteryTwister C3
NUMBER OF ACTIVE MEMBERS:

8084
Follow us: Facebook Twitter
 



Level II Challenges (95)

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

CMEA 1

[stamp-10] - 32 users already solved this challenge, 3 are working on it.
 
 
 

CMEA is a block cipher and was one of the 4 cryptographic primitives of the mobile communications network in the US. It is your challenge to perform a known-plaintext attack on CMEA with 100 known plaintext blocks given.
Read more...

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: 2010-12-06 00:00
Maximum number of attempts for this challenge: 20

All successful users of this challenge

Rank User (#32) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 1613 (153843) 2010-12-10 15:02:30
Nobody (nobody) 1286 (40618) 2011-01-24 10:53:04
Wolfgang Weisser (wowmyst) 1231 (33108) 2011-03-15 00:16:19
J. M. (jomandi) 1179 (113270) 2011-07-29 13:13:25
#5 Flip (Flip) 1174 (31107) 2011-08-22 21:41:30
#6 Viktor (Veselovský) 1147 (113116) 2012-03-06 14:00:03
#7 Seth Kintigh (DarkFibre) 1147 (79471) 2012-03-16 01:39:15
#8 Michel Van Caneghem (vancan) 1144 (49719) 2012-04-10 17:39:00
#9 Keith Randall (randall77) 1144 (31011) 2012-04-13 00:57:47
#10 Luigi Tomelli (archstanton) 1136 (95549) 2012-08-11 17:17:48
#11 Kurt Gebauer (Yokozuna) 1130 (120839) 2012-11-15 10:14:40
#12 Bart den Hartog (Bart13) 1126 (116412) 2013-02-01 01:07:10
#13 zahir mohsen moradi (ariobarzan) 1120 (99757) 2013-07-15 07:56:47
#14 Francisco Moraes (fmoraes) 1116 (90044) 2013-11-21 22:48:53
#15 George (Theofanidis) 1115 (88988) 2013-12-06 11:51:21
#16 Alain (Integral) 1115 (198642) 2013-12-24 16:29:32
#17 Em Doulgerakis (Greko) 1115 (109970) 2013-12-24 17:03:18
#18 S Combes (jerva) 1104 (77932) 2015-03-22 12:08:21
#19 Karl Schutt (günter) 1104 (34469) 2015-04-21 17:46:45
#20 Julia Bernotat (El Greco ) 1099 (81129) 2016-01-31 20:40:34
#21 Dominik M. (Sgt. Pepper) 1099 (43997) 2016-02-24 15:44:54
#22 Naman Bagga (namanb) 1099 (2311) 2016-03-13 19:32:24
#23 chris_3stones (3stones) 1096 (34472) 2016-10-10 20:37:46
#24 Nicolas (nicosPavlov) 1095 (70954) 2016-11-26 17:53:20
#25 Javantea (Javantea) 1095 (38889) 2016-11-30 08:06:40
#26 Alain Collignon (vexilla72) 1095 (51007) 2016-12-11 10:37:08
#27 Tristan1473 (Tristan1473) 1094 (17553) 2017-03-05 08:30:38
#28 chris (c2) 1094 (51973) 2017-03-19 08:47:50
#29 Swapnil Gaikwad (swapnilmg) 1094 (1094) 2017-03-22 07:52:31
#30 Ajay Prashant (Ajay_Prashant) 1094 (2491) 2017-03-23 04:28:20
#31 Mir Dim (mir0soft) 1094 (48879) 2017-03-27 11:47:35
#32 george lasry (george4096) 1093 (213462) 2017-06-22 23:03:23
You must be logged in to solve the challenge
Pages [1] 1 Show All  
 
 
powered by the CrypTool project  CrypTool

 

   +++    [14:09 - 23.06.2017] D3d4lu5 solved the Level II challenge 'Brute-Force-Attack on Triple-DES with Reduced Key Space'    +++    [07:55 - 23.06.2017] TheLion solved the Level I challenge 'Number Sequence — Part 2'    +++    [07:43 - 23.06.2017] TheLion solved the Level I challenge 'Original Caesar Cipher'    +++    [06:34 - 23.06.2017] TheLion solved the Level I challenge 'Number Sequence'    +++    [23:03 - 22.06.2017] george4096 solved the Level II challenge 'CMEA 1'    +++