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JCrypTool builds are based on Eclipse RCP and require Java 8 as runtime environment.

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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.

Here you find the latest stable version of JCrypTool. JCrypTool requires Java 8 as runtime environment -- the 64 bit version of Java for the 64 bit JCrypTool, or the 32 bit version of Java for the 32 bit JCrypTool (so a 32 bit JCrypTool won't work on 64 bit Java and vice versa). Detailed release information is available in our wiki. Installation instructions are available here.

The current stable version is from 2016-10-03.

jcryptool-0.9.9-linux.gtk.x86.tar.gz
MD5: 22d776ea2d86348715357338cc612bc5
SHA1: 4e88909f8348fba18db943dea4f34822468bb7ae

jcryptool-0.9.9-linux.gtk.x86_64.tar.gz
MD5: c15bb46a6097a8283c97ebfbaf127374
SHA1: d301ba55cae2bd77eebeac6668145de9d1ddf61f

jcryptool-0.9.9-macosx.cocoa.x86_64.tar.gz
MD5: 135c03e58946248b00670de3cce129fd
SHA1: 1524805960adaad68a5c08b281d48e7d2ed82b15

jcryptool-0.9.9-win32.win32.x86.zip
MD5: d8d7428e5136c0be44a6785d890377be
SHA1: 890c3d013e0b4e60fefea3568e3f731ccb1ffddb

jcryptool-0.9.9-win32.win32.x86_64.zip
MD5: 2b823221b5ac5c986ced6a742d3e2cc8
SHA1: dce9bf45dbf89f1b72ef137c2a959d569aece082

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