Cryptography

CyberChef - A browser-based cryptographic Swiss army knife

Easy
10 min

What is CyberChef?

CyberChef is an open-source web-based tool developed by GCHQ (Government Communications Headquarters), which provides a versatile range of coding, encryption, and data processing functions. It is often referred to as "The Cyber Swiss Army Knife", which refers to its extensive functionality and user-friendliness. CyberChef has become a popular tool especially among cybersecurity experts, digital forensic investigators, and Capture The Flag (CTF) competition players.

If you have made it this far in the course, you have undoubtedly become familiar with it!

You can find CyberChef here: https://gchq.github.io/CyberChef/

Using CyberChef

The operating principle of CyberChef is simple. You simply enter the input and build a "recipe" of different cryptographic operations that can be chained together. And then you "bake" the output!

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