AndrewNohawk

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General

BSides Badge Config

Badges At some time in the next 6 billion years I will complete the writeup for the badges about how they were put together. For now this is just how to get your badge working at home as well as how to unlock all the challenges now that BSides Cape Town is over. For those of…

CodingSecurity

HackFu 2016 Writeup

First off let me just say a big thank you to the MWR guys who put this CTF together, usually I don’t partake in CTFs because the skillset required is usually out of my grasp (IANAP). To have developed this CTF in a manner that allows people who do not work with crypto/hackz0r wizardry to still…

Hardware HacksRadioRTLSDR

Bypassing Rolling Code Systems

This blog post will discuss the implementation of Codegrabbing / RollJam, just one method of attacking AM/OOK systems that implement rolling codes (such as keeloq) — these systems are commonly found on modern vehicles and entry systems such as gates and garages. This technique has been used and spoken about for a number of years…

CodingRadioSecurity

Hacking fixed key remotes with (only) RFCat

Introduction Its been absolutely ages since I’ve posted anything on the blog, not that I havent been doing things, just really not many things I felt good enough to write an entry about. I got a lot of feedback regarding my previous entry about Hacking Fixed key remotes and I decided to build on that slightly….

GeneralHardware HacksSecurity

ZaCon V Badge [2/2]: How they work

The ZaCon badges were a ton of work on the hardware side (see ZaCon V Badge [1/2]: Build Time), however they provided their own challenges on the software side as well. Since my knowledge of chipsets only extended to the Arduino the badges are essentially a complete Arduino without the UBS->FTDI breakout. This means that…