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Level II Challenges (93)

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

Unconcealed RSA messages

[veselovsky-05] - 33 users already solved this challenge, 2 are working on it.
 
 
 

A strange effect might occur if you encrypt a message using the RSA cipher: The encrypted message has got the same value as the plaintext. Can you find all of these unconcealed messages for the given public key?
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Published on: 2011-11-02 08:15
Maximum number of attempts for this challenge: 20

All successful users of this challenge

Rank User (#33) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 2000 (149821) 2011-11-02 16:49:59
J. M. (jomandi) 2000 (113270) 2011-11-03 01:58:19
Keith Randall (randall77) 1824 (31011) 2011-11-03 23:02:57
The Killer (Killer) 1725 (42393) 2011-11-04 23:01:43
#5 Christian Matt (Luy) 1456 (9889) 2011-11-14 01:32:16
#6 jacobian1729 (jacobian1729) 1235 (5584) 2012-02-04 23:37:02
#7 Seth Kintigh (DarkFibre) 1222 (79471) 2012-02-23 02:45:40
#8 Michel Van Caneghem (vancan) 1216 (49719) 2012-03-06 06:56:21
#9 Martin Härterich (HaeM) 1202 (15149) 2012-04-05 10:06:18
#10 Kurt Gebauer (Yokozuna) 1200 (120839) 2012-04-11 00:48:38
#11 Luigi Tomelli (archstanton) 1188 (95549) 2012-05-17 22:29:04
#12 Christian (Etschupu) 1175 (31788) 2012-07-09 13:53:42
#13 Bart den Hartog (Bart13) 1174 (116412) 2012-07-18 21:16:18
#14 Thomas Lambert (lambert) 1165 (38594) 2012-09-03 19:50:44
#15 George (Theofanidis) 1137 (88988) 2013-06-17 22:16:15
#16 Almut (problelmo) 1136 (45992) 2013-07-03 22:46:11
#17 Em Doulgerakis (Greko) 1136 (109970) 2013-07-08 11:19:40
#18 zahir mohsen moradi (ariobarzan) 1133 (99757) 2013-08-14 19:02:43
#19 Forrest Gump (Polyphem) 1132 (38763) 2013-09-09 01:13:53
#20 Francisco Moraes (fmoraes) 1128 (90044) 2013-11-29 17:59:10
#21 Alain (Integral) 1124 (198642) 2014-02-12 08:05:40
#22 Pavel (haw) 1124 (22728) 2014-02-13 11:53:33
#23 hellman (hellman) 1123 (14862) 2014-03-14 11:48:19
#24 Javantea (Javantea) 1115 (38889) 2014-11-13 21:30:52
#25 Julia Bernotat (El Greco ) 1114 (81129) 2014-12-10 15:54:09
#26 Sean (Kavanaugh) 1107 (29143) 2015-09-09 20:09:28
#27 Szabó Zoltán (szabo.z87) 1106 (47990) 2015-11-20 19:32:55
#28 Robert (rm) 1105 (56012) 2016-01-02 20:24:46
#29 Dominik M. (Sgt. Pepper) 1104 (34068) 2016-02-25 15:15:33
#30 Alain Collignon (vexilla72) 1104 (48599) 2016-03-11 18:27:02
#31 Norbert Biermann (Norbert) 1101 (40024) 2016-08-10 22:42:21
#32 Nicolas (nicosPavlov) 1100 (70954) 2016-11-08 04:12:37
#33 Tristan1473 (Tristan1473) 1099 (17553) 2017-02-12 09:04:08
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   +++    [23:45 - 29.03.2017] c2 solved the Level I challenge 'Classical Ciphers^3'    +++    [23:05 - 29.03.2017] c2 solved the Level II challenge 'Lunchtime Attack on the Fully Homomorphic Encryption Scheme'    +++    [18:20 - 29.03.2017] indojab solved the Level I challenge 'Original Caesar Cipher'    +++    [17:17 - 29.03.2017] indojab solved the Level I challenge 'Number Sequence'    +++    [16:05 - 29.03.2017] Sgt. Pepper solved the Level I challenge 'A Secret Message from Castle Mansfeld'    +++