The release version of CrypTool 2.0 was released on 20th Aug 2014. We would be happy if many of you use it for teaching, self-study, education and awareness and give us feedback. (2014-08-25)
Article about solving the Double-Transposition Challenge in Cryptologia
A level X challenge in MysteryTwister C3 by Klaus Schmeh using the double-column transposition cipher withstood a long time against cryptanalysis efforts. Nevertheless, it was solved in November 2013 by George Lasry. (2014-06-25)
"I've been using CrypTool for years in internships for IT-Security at the University of Klagenfurt and Distance Learning Computer Science at the University of Applied Science Trier. CrypTool is used here among the students with enthusiasm because in many cases it awakes the play instincts in the up-and-coming computer scientists (e.g. through manual decryption of ciphertexts or number games.) If only learning were always such fun, then it would be much easier for us students!"
Dipl.-Ing. Dr. Peter Schartner, Uni Klagenfurt
Third public beta of CrypTool 1.4.31
The new CrypTool 1.4.31 beta is ready. This version is now available in 6 languages German, English, Spanish, Polish, Serbian and Greek. We would appreciate if you test this beta in detail and give us feedback. The release version of CT 1.4.31 is scheduled for mid 2014. (2013-10-04)