AndrewNohawk

Radio

Various posts about Radio Security dealing with Garage remotes, cars and other radio devices.

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 remotesĀ and I decided to build on that slightly….

Hardware HacksRadioSecurity

Bypassing LF Entry Systems

Its taken a lot of motivation to start writing this, and I hope its okay, I have a mental block that I need to write this and the second post about magstripes before moving on to some new things with my plants I want to try. Eye Candy: My friend Roelof Temmingh (@Roeloftemmingh) made this…

CodingRadioRTLSDRSecurity

Hacking fixed key remotes

Previously I discussed using my RTL-SDR to merely listen for analog audio signals. In this entry I’ll discuss using it to decode digital signals (this example on fixed remote signals often used for garages / gates ) so that they can be replayed/brute forced with something like the RFCat project (based on TI’s CC1111EMK module)….