#cryptology, #cryptography, #cryptanalysis

In this short video, I show how to create and decode 2D codes using CrypTool 2. First, we create our own QR code. Then, we decode QR codes. Also, I present how you can create your own vCard. This is a QR code, that can be scanned by a mobile phone and contains your address information. Your mobile phone will then create a new address book entry using the data encoded in the QR code.

Clearly, QR codes are no ciphers, since no secret key is involved creating these :-). So everyone can decode the codes easily.

If you are interested in learning the fundaments of cryptology, let me invite you to have a look at our video series about the basics of cryptology, also for beginners: [ Ссылка ]

You can download the latest version of CrypTool 2 from here: [ Ссылка ]

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