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.

E-Learning Platforms

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.

Find other crypto related websites

CrypTool participates in a chain of links through which you can discover more websites about cryptography. Click:

Crypto Tour Click these icons to discover other related sites