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Level II Challenges (160)

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

RSA Factoring Challenge: RSA-220
[rsa-03] - 31 users already solved this challenge, 3 are working on it.
 
 
 
This challenge descends from the RSA Laboratories contest to encourage research into the practical difficulty of factoring large integers of different length (between 330 and 2048 bit) and cracking RSA keys used in cryptography. This challenge is about factoring a number with 220 decimal digits.
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2012-02-07 10:42
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#31) Achieved points (Global score) y-m-d - h:m:s
Viktor (Veselovský) 0 (169444) 2016-11-23 11:38:21
Snake (snk) 0 (187783) 2016-12-01 16:20:47
S (Zyphe) 0 (13361) 2017-01-02 19:39:56
Bart den Hartog (Bart13) 0 (148936) 2017-01-25 19:34:20
#5 Calebe (calebe.rocha) 0 (500) 2017-05-05 14:34:32
#6 Kasia (kasia-tutej) 0 (53366) 2017-06-16 20:59:52
#7 George (Theofanidis) 0 (132517) 2017-07-22 13:24:52
#8 HolgerK (HolgerK) 0 (25776) 2017-12-08 21:34:20
#9 Rainer Zufall (kiekuk) 0 (56786) 2017-12-19 22:48:54
#10 D3d4lu5 (D3d4lu5) 0 (363488) 2018-04-28 19:03:40
#11 Benjamin (200611736) 0 (10186) 2018-06-12 21:39:10
#12 Random Dude (rnd) 0 (103645) 2018-11-06 17:30:31
#13 Erik (Erox) 0 (26141) 2018-11-16 13:10:24
#14 mglarragan (mglarragan) 0 (5067) 2019-01-13 20:33:43
#15 Lia (Lia) 0 (6855) 2019-03-09 01:11:07
#16 ENOENT (ENOENT) 0 (13478) 2019-06-01 17:51:52
#17 Simon Hemmerich (simhem) 0 (3779) 2019-06-12 00:20:46
#18 Stephan (Stephje1978) 0 (27064) 2019-06-23 16:51:20
#19 Kevin Shepherd (kshepherd) 0 (2391) 2019-11-28 16:59:31
#20 Magata (fmagata) 0 (11780) 2020-01-02 21:17:08
#21 Antares (Antares) 0 (32880) 2020-03-02 10:16:06
#22 Sarang Dileep (V0ld3m0rt) 0 (1087) 2020-06-15 17:06:51
#23 Alain Collignon (vexilla72) 0 (123666) 2020-07-09 07:41:27
#24 0bliviate (0bliviate) 0 (8634) 2020-08-17 19:14:33
#25 George Lasry (george4096) 0 (422251) 2020-09-06 12:12:26
#26 r karoly (r_karoly) 0 (4278) 2021-01-25 20:38:14
#27 Alexander W. Janssen (itnomad) 0 (10782) 2021-02-10 16:44:40
#28 Gerd Wilts (gerdw) 0 (50634) 2021-02-11 22:52:01
#29 Eric (ExAstris) 0 (56037) 2021-05-13 03:22:08
#30 Lane Williams (planetlane) 0 (34637) 2021-09-02 19:42:20
The solution for this challenge was made public on 2016-05-13, and thus it is not possible to get points for this challenge any more. However, you can still solve and enter a solution for this challenge.
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