Header - Impressionsbeitrag CT1

Did you know?

...that CrypTool is open source? 

Features of CrypTool 1.4.3x

Here you will find a summary of the most important features of the current release version of CrypTool 1 (CT1). This does not include features which are additionally implemented in the successor versions CrypTool 2 (CT2) and JCrypTool (JCT). All features of all versions are listed in the CT functions table.

CT1 is a freeware program which enables you to apply and analyze cryptographic mechanisms. It has the typical look-and-feel of a Windows application. CT1 contains comprehensive online help, which can be understood without deep knowledge of cryptography. CT1 is available in English, German, Polish, Spanish, and Serbian. CT1 includes every state-of-the-art cryptographic function and allows you to learn about and use different cryptographic methods within the same environment.

The algorithms available include both classic and modern cryptosystems:

  • classic methods: the Caesar cipher, the ADFGVX cipher, the double-column transposition (permutation), the Enigma encryption algorithm, etc.
  • modern methods: the RSA and AES algorithms, hybrid encryption, algorithms based on lattice reduction and elliptic curves, etc.


Read more: Features of CrypTool 1.4.3x



Official presentation of the CrypTool project

Last Update: August 2010
The CrypTool presentation, with over 100 slides, gives an overview of the CrypTool project and the features of CrypTool 1.x.

Roadmap of CrypTool 1


The current version of "CrypTool 1" is the CrypTool 1.4.30.
This version is written in C/C++ and requires a Win32 environment. It was compiled with the Microsoft Visual Studio 2008 development environment. Right now CT1 is available in 5 languages.
The next version of CrypTool 1.x will be 1.4.31 coming in Q3/2012. This is planned as a pure bugfix release. New functions will only be implemented for CrypTool 2 and JCrypTool.

For further information, see download page.

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