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How to Hack Your Own Car
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zombieCraig
zombieCraig,
User Rank: Author
4/6/2016 | 12:51:45 PM
Re: Why hack stock?
It will affect diagnostic equipment.  It will not affect the OBD port itself.  However there is a lot of discussion about changing the OBD port for other reasons.  For instance, the only reason OBD-II is a standard is emmissions testing.  All the other things we have done with it are not mandated standards and can be changed at any time.  There is a growing concern about 3rd party OBD dongles being plugged into vehicles that open up the attack surface allowing cellular links direct access to your vehicle bus.  OBD ports may change a bit but not because of encryption.

A lot of the diagnostic service codes (DSCs) that are generated by things like the gas cap will also go to "the cloud" and you will be able to view them on your cell phone or they will be sent directly to the dealer.  They will still be local to the vehicle as well and you will still need a way to direclty access it but queriering DSCs doesn't require the modification of firmware, so they would still function even on updated encrypted systems.
theb0x
theb0x,
User Rank: Ninja
4/6/2016 | 11:56:50 AM
Re: Why hack stock?
Do you think this will change the OBD interface? If that is the case all automotive technicians would need to replace most if not all of their diagnostic equipment. I see this having a negative impact within the industry.

As it is right now on a modern vehicle a diagnostic code must be obtained just to determine that the gas cap is loose.
zombieCraig
zombieCraig,
User Rank: Author
4/5/2016 | 7:39:46 PM
Re: Why hack stock?
You are thinking of the work that has been done now. When all communication on the vehicle is encrypted, those none stock replacements will have to be more than just the ECU but every module that utilizes encryption. Soon, if we don't address the issue the only option will be stock.
theb0x
theb0x,
User Rank: Ninja
4/5/2016 | 7:36:01 PM
Why hack stock?
I don't really see the benefit of hacking a stock ECU when an aftermarket one has no limits to it's functionality. There is nothing to reverse engineer.


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