3 ms·

He is right: natural keys are difficult to handle I'd just say this is not so right: As it turned out, though, whoever made that piece of software knew what

He is right: natural keys are difficult to handle I'd just say this is not so right: As it turned out, though, whoever made that piece of software knew what they were doing, because the mechanic just changed the chassis number, and that was that. Because, yes, everybody can just reprogram your car and change its VIN and stuff. The manufacturer software have protection against that. But nothing prevents you from using another software. At the end, you can directly program whatever you want into the car : change the VIN, change the odometer etc.

duped 2y ago
> At the end, you can directly program whatever you want into the car : change the VIN, change the odometer etc. And you can wind up with an undriveable car this way. Particularly the odometer if you roll it back and try and sell it, your state's DMV will probably reject the title transfer.
- JackSlateur 2y ago
  Bah ? Got a new car, used it for 150k km Tweak the odometer and set it to 50k, sell the car How could the government know I cheated ? Especially for an old car which are not connected (so even the manufacturer cannot tell) (btw, this is used in thief networks to refurg stolen cars)
  - duped 2y ago
    > How could the government know I cheated You would have to perjure yourself on your yearly registration, when you get emissions testing you would need the tech to perjure themselves, and if you go to any mechanic that reports the mileage to the state (which some do, depending on the state) you would need them to perjure themselves too. > Tweak the odometer and set it to 50k, sell the car If the most recent registration says 150k and then you tweak it to 50k and try and transfer the title, the state is going to reject the application for title transfer outright. You may be charged with odometer fraud.
    - JackSlateur 2y ago
      It may be important to note that here in France, there is no yearly registration nor emissions testing We only declare odometer's when we sell the car. There is a technical checkup every two years which may be send that intel to the gov. Does not matter anyway : what matters is that a counter that should only be increased can be decreased, because car manufacturer do not care about any kind of IT security

duped 2y ago

> At the end, you can directly program whatever you want into the car : change the VIN, change the odometer etc. And you can wind up with an undriveable car this way. Particularly the odometer if you roll it back and try and sell it, your state's DMV will probably reject the title transfer.

JackSlateur 2y ago
Bah ? Got a new car, used it for 150k km Tweak the odometer and set it to 50k, sell the car How could the government know I cheated ? Especially for an old car which are not connected (so even the manufacturer cannot tell) (btw, this is used in thief networks to refurg stolen cars)
- duped 2y ago
  > How could the government know I cheated You would have to perjure yourself on your yearly registration, when you get emissions testing you would need the tech to perjure themselves, and if you go to any mechanic that reports the mileage to the state (which some do, depending on the state) you would need them to perjure themselves too. > Tweak the odometer and set it to 50k, sell the car If the most recent registration says 150k and then you tweak it to 50k and try and transfer the title, the state is going to reject the application for title transfer outright. You may be charged with odometer fraud.
  - JackSlateur 2y ago
    It may be important to note that here in France, there is no yearly registration nor emissions testing We only declare odometer's when we sell the car. There is a technical checkup every two years which may be send that intel to the gov. Does not matter anyway : what matters is that a counter that should only be increased can be decreased, because car manufacturer do not care about any kind of IT security