Counting in Hexadecimal (Base 16)

CM.3 When the numbers run out, use letters

Teri Radichel
Cloud Security
Published in
6 min readMar 19, 2023

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⚙️ Part of my series on Automating Cybersecurity Metrics. The Code.

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In the last post, I explained how numbering systems and bases work. We looked at binary and decimal and touched on hexadecimal. I showed you how to count in binary.

In this post, we’ll look at counting in hexadecimal, or a 16 base numbering system. You’ll see a lot of data represented in hexadecimal format in cybersecurity. You often do not need to translate it into some other format as your tools will do this for you in many cases.

But you might if an attacker is trying to trick your tools or there is a bug in your program! You might also be digging into hexadecimal…

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Teri Radichel
Cloud Security

CEO 2nd Sight Lab | Penetration Testing & Assessments | AWS Hero | Masters of Infosec & Software Engineering | GSE 240 etc | IANS | SANS Difference Makers Award