Did you know...

that you can create Barcodes with CrypTool-Online?


While you can learn a lot about classic encryption methods and their weaknesses under the menu item Ciphers, you here have the chance to encrypt a text in hex with the modern AES encryption method. Currently, this method is being regarded as safe – provided a "good" key is used.

You can have the Password Generator provide you with a safe password. On this site, you can also learn about what a "good" password is and how to remember a seemingly complicated password without a problem.

Try beating the computer at the Taxman game and prove your mathematical skills by getting to the top of the high score.

Many more cryptographic functions, some of them in colorful visualizations, are contained in the downloadable versions of CrypTool – an overview of these more than 300 functions can be found here.

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