Browsing all articles tagged with Access Control

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 (Marko Wolf describes it in “Security Engineering for Vehicular IT Systems” from 2009).

However the advancement in easy to use and cheap hardware has made this a readily available research path for almost anyone. Samy Kamkar showed it at Defcon 2015, you can read about that and his device at http://www.wired.com/2015/08/hackers-tiny-device-unlocks-cars-opens-garages/. This blog entry will be more discussing the integral parts of how it works and how easy it is to do.

I was optimistic that the 2015 talk @elasticninja and myself did at zacon on this topic would be published so that I could lazily just link to the video instead of having to write it up, but alas, here we are! ;)

Naturally its important to have a spoiler before the long boring text. Here is a video carefully crafted by my friend Roelof Temmingh showing us opening a VW car with two YS1 (YardStick One):

Read more »

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 cool video for my talk, check it out below or at http://vimeo.com/51228567.  Please note we had permission to test out the door at Senseposts’ old office :)

 

Mission Plausible from RT on Vimeo.

:)

Read more »