More than sixty people worldwide contribute regularly to the project. Originally developed by German companies and universities, it is an open-source project since 2001. The development of CrypTool started in 1998. In addition it contains: didactical games (like Number Shark, Divider Game, or Zudo-Ku) and interactive tutorials about primes, elementary number theory, and lattice-based cryptography. Other methods (for instance Huffman code, AES, Keccak, MSS) are visualized.

In addition to the algorithms, solvers (analyzers) are included, especially for classical ciphers.

Methods from the area of quantum cryptography (like BB84 key exchange protocol) and the area of post-quantum cryptography (like McEliece, WOTS, Merkle-Signature-Scheme, XMSS, XMSS_MT, and SPHINCS) are implemented. They contain most classical ciphers, as well as modern symmetric and asymmetric cryptography including RSA, ECC, digital signatures, hybrid encryption, homomorphic encryption, and Diffie–Hellman key exchange. To introduce users to the field of cryptography, the organization created multiple graphical interface software containing an online documentation, analytic tools and algorithms. Users can adjust these with own parameters. That is a free e-learning software for illustrating cryptographic and cryptanalytic concepts.Īccording to 'Hakin9', CrypTool is worldwide the most widespread e-learning software in the field of cryptology.ĬrypTool implements more than 400 algorithms. Cryptography, Encryption, Privacy, E-Learning

Download cryptool 1.4