Author Archives: Norman

About Norman

Sometimes, I write code. Occasionally, it even works.

Notes on RF Retroreflectors

Over the past few weeks, I’ve been spending some time learning about RF retroreflectors. The goal of this is to improve my understanding of the theory and application of RF in general. An RF retroreflector is a device which takes … Continue reading

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Writeups – LowDeep, Kaboom (Insomnihack Teaser)

This weekend, I participated for a few hours in the Insomnihack Teaser CTF. Due to poor time management (specifically, my inability to correctly convert UTC time), I was only able to play for a little while, but I solved two … Continue reading

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Thoughts on 2019 / 2020

As we sit on the cusp of a new year, it is appropriate that we consider the year just gone, and the path ahead. In 2016, I began a push to use deliberate practice to improve my own skills in things … Continue reading

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Effective Electromagnetic Keyboard Side-Channel on a (kinda) Budget

Update: a primitive GUI is now available to help remove the last false positives from signal matching. To use this, execute keyboards/classifier-read.py with the “–gui” argument to use this, code is in keyboards/ui.py. This week, I made good progress on … Continue reading

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Writeups – Elecduino, python_jail (NCTF)

This weekend, I participated in NCTF. This was a beginner CTF, and it was good both as a morale boost, particularly as other research wades into unexplored territory, as well as a refresher on basic skill. It is always a … Continue reading

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