5 ms·
These cars were made ~5 years ago, but there's still no excuse for using a 40-bit key (which is transformed into a 24-bit response, lol) ~5 years ago.
by craftyguy 8y ago
These cars were made ~5 years ago, but there's still no excuse for using a 40-bit key (which is transformed into a 24-bit response, lol) ~5 years ago.
- walrus01 8y agoThere was really no excuse even in 2009, nevermind 2013, if you were doing some sort of proximity card public/private key crypto...
- dchichkov 8y agoActually, a very good excuse was provided precisely in 2009 - https://xkcd.com/538/ https://xkcd.com/538/
- craftyguy 8y agoThat doesn't really apply in this situation though, since the crypto can be defeated without taking a wrench to the owner's face.
- walrus01 8y agoI don't disagree with the premise of that cartoon, but it's more about the concept of putting full disk encryption on your laptop, crossing the border into Uzbekistan, and then refusing to give up the password. By that logic, anything that is protected by crypto, if you threaten the owner with violence, it can be stolen from them. Which is just about everything on earth, if you're willing to apply sufficient violence.
- dchichkov 8y agoI was referring mostly to the concept of "A crypto nerd's imagination". Seriously, it is unlikely someone would put the money and R&D effort required to replicate the researcher's solution with the goal of stealing these camera systems on the wheels that can be disabled remotely. So I'd rather advocate for Tesla to continue using inexpensive and secure enough solution to unlock doors. And focus their efforts on making the thing actually safer, like not accelerating into and colliding with concrete barriers.
- walrus01 8y agoI can totally see people stealing Teslas, if you bring $100 worth of jamming equipment with you, it won't be disabled remotely. The cellular frequencies that a Tesla uses for M2M connections back to the mothership are not rocket science to jam. At least not before it's driven into a warehouse somewhere and cut apart to be cannibalized for repair parts, then parts shipped overseas.
- dchichkov 8y agoRepair parts for what? Who will purchase these?
- hyperdimension 8y agoAll the people who have been waiting for months+ for a body shop to find Tesla-approved replacement parts, presumably.
- walrus01 8y agoPresumably, the same wholesalers/auto parts trading places I've seen in third-world countries with suspiciously sourced grey market Toyota Land Cruiser/Lexus repair parts. Or people who want $20,000 worth of 100kWh 18650 battery conveniently packaged with connectors and cooling system.
- Rebelgecko 8y agoFair enough, I think I mentally substituted "Model 3" for some reason. I wonder if these fobs were designed 20+ years ago when the US crypto export control situation was a bit goofier.