[Ovmsdev] BCM seed key algorithm Maxus Euniq6

Chris van der Meijden chris at arachnon.de
Wed Oct 12 13:35:13 HKT 2022

Hi Jaime

Cool project on an interesting car.

I can't help you directly on decyphring the seed-keys, but I found
information on the Tesla key algorithms recently:


Perhaps you can find some hints there. Only a guess, but perhaps worth



Am Dienstag, dem 11.10.2022 um 17:20 -0300 schrieb Jaime Middleton:
> Hi all, 
> I am currently working on the implementation for the Maxus Euniq6. I
> have been able to decipher most of the metrics I wanted, but now I
> need to open and close doors. 
> I was able to get access to a scanner for the car and sniff the can
> while the scanner opened and closed the doors. 
> I mostly deciphered the interaction between the car and the scanner
> but there seems to be a seed-key algorithm in order to authenticate
> the scanner with the car. (I have ruled out a simple xor of
> bitshift).
> Any ideas on how to decipher this?
> I have a list of seed-keys and the chatter before in case someone
> wants to take a look.
> Any help is greatly appreciated.
> Thanks, 
> Jaime Middleton
> Software Engineer
> Tucar Spa
> Tucar cell phone +56 9 42526635 
> Tucar cell phone jmiddleton at tucar.app 
> Tucar net www.tucar.app 
> Tucar location Plaza Yolanda 80, Las Condes, Santiago de Chile 
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.openvehicles.com
> http://lists.openvehicles.com/mailman/listinfo/ovmsdev

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