Welcome to the CrypTool Portal
The CrypTool Portal (CTP) is the starting page of the CrypTool project. Its aim is to raise awareness and interest in crypto techniques for everyone.
The CT project develops the world's most-widespread free e-learning programs in the area of cryptography and cryptanalysis. All learning programs in the CT project are open source and available for free.
Crypto Challenge Contest
Want to participate?
Volunteers, especially programmers, and students planning to write their thesis in the area of cryptography, are always welcome to join in the further development of the CrypTool project. You will experience project management in a distributed open-source project.