CoolBDPhenom03

tfthach13

Damn! Just like that?!

austinauflick

No mention of taking the car itself. Sooooo no valuables in the car. Got it.

abcut973

CoolBDPhenom03

Yeah, local cops can cite me all thy want for tinted windows. I'm keeping mine. I don't make it a habit to keep valuables in there anyway, but between parking in sketchy areas and the summer heat, I'll keep the tints.

roadtalontsi

i wouldnt worry about this on benz's. The Rolling code is something 100 digits long and only has 900,000 unique uses before that keytrack is no longer usable. I've never heard of a newer benz being stolen with out the key. You'd literally have to be a genius hell mercedes cant even get the **** right all the time lol.

CoolBDPhenom03

What about simply accessing the door locks?

CPD SLK

Interesting...

tfthach13

This is what I was thinking when I saw the video...something that specifically targets the door locks, and not necessarily any other part of the car's electronics.

I honestly thought that they were using some type of "EMP" trigger that causes the door locks to "reset" and unlock. Not sure if that's even possible though since it takes quite a bit to generate enough power for an EMP to trigger; let alone a handheld device. Just my thoughts on the matter...

Like austinauflick said, no valuables in plain sight would be the best deterrent.

Jycke

Is it really possible to direct an EMP to such a specific point without it damaging the rest of the car's electronics?

yazid

Oh man that's nuts.. But hey, that ensures you not to leave valuables in your car. It's seems that the guys with the lil box have to press the switch and check if it unlocks the car in the first place cos they themselves don't look confident that the doors can be unlocked (by observing the vid)... The cars being unlocked looks all to be American and not European. But who knows on the other cars not shown!

CPD SLK

This is what I asked myself. I used to be a mechanical engineer, so I avoided electrical stuff with a passion, but I have always been fascinated by EMP stuff.

I found a video by Justin Beiber about this:


While it is good for a laugh at this kid's expense, it kind of just made me think...maybe you can limit what system it impacts through limiting the power, or some other factors...no idea. And I'm too tired to do any legitimate research haha....

CPD SLK

Unrelated but awesome

http://gizmodo.com/watch-a-fully-aut...dem-1067282198

jvanbrecht

Okay, first off, every electronic device emits an EM field. All an EMP device is, is an electronic device that emits a much larger directed EM field. To create a field strong enough, and large enough to affect any type of vehicle (or plane), or to interfere with any electronic device from more than a couple of inches away, you would need massive coils and a power supply..

Nice science fiction idea, but on a hand held scale, that is all it is, science fiction.

As for the rolling code, it is not simply just a rolling code, it is a rolling code in an encrypted signal that uses a handshake to validate the key. However, there are plenty of man in the middle attacks that can exploit a flaw in the crypto, handshake or both, and potentially trick the car into thinking an authorized key was used.

This attacked has been performed many times over on some very secure wireless networks, which put alot more thought into security than car manufacturers do. This oddly enough currently only affects OSX, ios and Android devices, not MS based (OS and phones) devices.. which is a nice change for once.

But the point remains, there are many weak points in a vehicles key fob to vehicle challenge. The technology used has remained static for quite a number of years (keep in mind that our keys are very similar to Chrysler ones from the merger days, and if Chrysler are susceptible, so are the MB's). Computing power seems to double every few weeks, far outstripping vehicle tech in progress.

I have friend doing research on attacking vehicles via remote sensors (TPMS system), as well as the canbus using commodity hardware, it is harder than people think. These are not tinkerers either, they are professional security people who give talks at places like Defcon and Blackhat.