The Cyber Security Challenge Germany (CSCG) is the German hacking
competition for pupils and students. There are 12 online challenges
starting on May 2nd, 2016. The juveniles have to solve different
IT-Security tasks till August.
"In addition to the appealing appearance and the extensive scope of operation, the team of CrypTool developers must also be praised. Wishes regarding missing functionality or suggestions for improvement are always promptly acted on and, where possible, integrated into new versions. In addition, the path chosen for recent developments is in my opinion a great success: Especially the building-block design with the independent modules (e.g: encryption, hashes or signature) that can be combined in activities, will be an inspiration for students.”
Dipl.-Ing. Dr. Peter Schartner, Uni Klagenfurt
RSA sanity check
Testing RSA moduli for shared prime factors. Full article (2012-05-24)