University of Siegen, Germany
University of Duisburg-Essen, Germany
Ruhr-Universität Bochum, Germany
The Ruhr-Universität Bochum provides the CrypTool project with special knowledge about several cryptology-related topics. Their main purpose is to take care of quality management work, i.e. review of the online help and evaluation of user interfaces. Moreover, they supervise students who integrate functionality in CrypTool 2.0 and they administer the MTC3 website.

Universität Kassel
Technical Lead of the CrypTool 2 project is Prof. Dr. Arno Wacker, lead of the department "Softwaretechnik für Ubiquitous Computing Anwendungen".
Deutsche Bank AG
Technische Universität Darmstadt, Germany
Center of Advanced Security Research Darmstadt (CASED)
Prof. Johannes Buchmann's research group "Cryptography and Computeralgebra" at TU Darmstadt develops the FlexiProvider library, an open-source Java library for usage of cryptographic primitives and protocols in Java programs. Further developments of the provider are accomplished in the context of the CASED research center. FlexiProvider is used in JCrypTool.
Politechnika Warszawska, Poland
Consejo Superior de Investigaciones Científicas, Spain
The 'Spanish National Research Council' in Madrid translated both the CrypTool 1 e-learning software and the old website into Spanish.
Klagenfurt University, Austria
The research group for system security contributes to the quality assurance, as part of the beta testing team. They also provide ideas and feedback with respect to the further development of CrypTool in the academic area.
FH Oberösterreich, Campus Hagenberg
The Department "Secure Information Systems" at the University of Applied Sciences Upper Austria, Campus Hagenberg has been contributing to the JCrypTool project since 2007 by implementing procedures and protocols.
University of Singidunum, Serbia
The Department for Informatics and Computing at Singidunum University in Serbia has contributed plugins for network based communication between remote CrypTool 2 environments. These plugins are the result of many years of successful usage of CrypTool for teaching cryptology.
The above list is not complete as many people and organisations contribute to the CrypTool project without extra credits on this website.











