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 huge variety of encryption methods and analysis tools including many illustrated examples.

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.

Release version CrypTool 1.4.40

The current release version is CrypTool 1.4.40 (released September 21st, 2017).

This version requires a Win32 environment. The program contains some functions calling Java applications. To run these functions a Java runtime enviroment under Win32 (at least JRE 1.7) needs to be installed.

Both, the sources of the release version (Tag "CrypTool_1_4_40") and the sources of the latest changes are available from the subversion repository. Everybody has read access to this repository (username anonymous and empty password).

CrypTool 1.4.40 is available in English, German, Spanish, Polish, Serbian, and French:

Go To Top