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
"I have been using CrypTool as a software tool to demonstrate the working principles of cryptographic algorithms and protocols, and to complement m lectures on computer and network security accordingly. My experience is that students like to work with CrypTool and to discover the wide range of cryptographic algorithms and protocols it implements. The tool provides an excellent playground to do lab studies and exercises."