CrypTool Portal

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You can directly visit one of the CrypTool topic pages by clicking one of the five buttons here below.

CrypTool 1

CrypTool 2

JCrypTool

CrypTool Online

Mystery Twister C3

CrypTool 1

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.

CrypTool 2

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.

JCrypTool

What is JCrypTool?

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

CrypTool-Online

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.

Mystery Twister C3

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.

CrypTool 1

CrypTool 2

JCrypTool

CrypTool-Online

Mystery Twister C3

Free downloads

Did you know?

CrypTool 2 provides visualization as well as workflow controls to enable intuitive manipulation and interaction of the cryptographic primitives.

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