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Header - Impressionsbeitrag CT2

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CrypTool 2 provides a variety of cryptanalytical tools to analyze or even break classical and modern ciphers. With the current version you can, for instance, apply a ciphertext-only attack on an Enigma-encrypted ciphertext.

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This page is an archive of all current builds of CrypTool 2.
The builds run on 32 and 64 Bit Windows. Please note that you need the Microsoft .NET Framework 4.0 to run CrypTool 2.
No admin rights are needed for the installation.
Each build is available as an .exe installer and as a compressed zip archive. Both have an online update mechanism. The .exe installer supports registration of start menu entry, desktop link and explorer file type, but does not support more than one .exe installation. If in doubt, use the .exe installer.


Stable versions and releases

The most recent version is CrypTool 2.0 (Stable Build 6222.1) and can be downloaded here.

Nightly Builds

Nightly builds are compiled every night based on the most current version of the source code checked into the SVN repository.
Please be aware that these builds are work in progress. They are by no means guaranteed to be stable, and they may contain experimental features that are not yet fully functional.
CrypTool 2.1 (Nightly Build 6504.1) - May-29-2015 00:27:31 - 79.731.065 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6503.1) - May-20-2015 00:28:34 - 79.730.955 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6501.1) - May-15-2015 00:57:59 - 81.430.791 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6500.1) - May-07-2015 00:26:50 - 81.427.648 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6498.1) - April-24-2015 00:28:03 - 81.350.792 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6496.1) - April-23-2015 00:28:30 - 81.342.118 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6495.1) - April-22-2015 00:28:18 - 81.342.258 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6494.1) - April-21-2015 00:35:03 - 81.342.120 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6491.1) - April-16-2015 00:26:27 - 81.341.746 Byte - ZIP file EXE installer
CrypTool 2.1 (Nightly Build 6490.1) - April-12-2015 00:52:33 - 81.342.060 Byte - ZIP file EXE installer

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