What is CrypTool 1

CrypTool 1 (CT1) is an open-source Windows program for cryptography and cryptanalysis. It’s the most wide-spreaded e-learning software of its kind.

What is CrypTool 2?

CrypTool 2 (CT2) is an open-source program offering an innovative visual programming GUI to experiment with cryptographic procedures and to animate their cascades.

What is JCrypTool?

JCrypTool (JCT) is an open-source e-learning platform, allowing to experiment comprehensively with cryptography on Linux, MAC OS X, and Windows.

What is CrypTool-Online?

CrypTool-Online (CTO) runs in a browser and provides a variety of encryption and cryptanalysis methods including illustrated examples and tools like password generator and password meter.

What is MysteryTwister C3?

MysteryTwister C3 (MTC3) is an international Crypto Cipher Contest offering a broad variety of challenges, a moderated forum, and an ongoing hall-of-fame.

JCrypTool is an open-source e-learning platform, developed to not only let everybody experiment with cryptography, but to develop and extend the JCrypTool platform in various ways with their own crypto plug-ins.

JCrypTool is an extensive open-source development project, separated into two parts: JCrypTool Core and JCrypTool Crypto.

The JCrypTool Core Project takes care of the JCrypTool platform itself. This contains the bare runtime, editors, crypto providers as well as core functionality like the Crypto Explorer view or the Actions view. About half a dozen experienced team members are working on the core project. Constant communication with the members of the crypto project is our most important job, e.g. to integrate new extensions for crypto plug-ins in the platform or the develop new extension points.

The JCrypTool Crypto Project is open to everybody. It has an active community and its aim is to develop new crypto plug-ins (algorithms, analysis, games, visualizations and others) and integrate them into the JCrypTool project. The plug-in projects team members’ change frequently; not everybody stays in the team after finishing a plug-in (although everybody is very welcome to do so).

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