CrypTool 2 (CT2) is an open-source program offering an innovative visual programming GUI to experiment with cryptographic procedures and to animate their cascades.
Land der Ideen - Statements
"Cryptography is the core technology of IT security solutions and in therefore of great practical importance and there is a need to raise awareness for crypto techniques. But cryptography is very mathematical and therefore hard to understand and to use for most people. CrypTool closes this gap. The system makes cryptography accessible for a great audience."