"CrypTool meets very important requirements. It gives educators - and those who want to educate themselves - an opportunity to experiment with cryptography based on sound implementations of state-of-the-art algorithms."
Prof. Dr. Dieter Gollmann, TU Hamburg-Harburg
New Release of CrypTool — CT 1.4.40 released
A new release of CrypTool 1 was published on September 21, 2017.
This version is available in 6 languages (German, English, Spanish, Polish, Serbian, and French), and it contains many bug fixes and corrections.
The website CryptoPrograms http://www.cryptoprograms.com is dedicated to create and solve classical ciphers online. New on this site are analyzers for solving classical ciphers without any knowledge of the keyword and, in many cases, the key length. Routines for solving around 40 cipher types are provided.
Release Candidate 8 available
JCrypTool 1.0.0 Release Candidate 8 is available on our download page.