The 9th Beta of CrypTool 2 was released on 20th December 2012. You are cordially invited to test and give feedback. Final version of CT 2 is planned to be published in April 2013. (2013-01-02)
First public beta of CrypTool 1.4.31
The new CrypTool 1.4.31 beta 05 is ready. You are cordially invited to test and give feedback. Final version of CT 1.4.31 is planned to be published mid 2013. (2012-07-31)
RSA sanity check
Testing RSA moduli for shared prime factors. Full article (2012-05-24)
Land der Ideen - Statements
"In Warsaw University of Technology we have been using CrypTool for five years. It is especially useful for students who need soft, but comprehensive introduction into IT security. As far, as I know there are no other applications in this field with so many didactic features."