How do I find out AES-128-CBC encryption key?

[puujee12]

Hello @rgerganov and thank you for your amazing blog post. I have Gen5 head unit from Kona and it's firmware is pretty much same. So I will be very glad if you share your method on how did you find aes encryption key.

[rgerganov]

The encryption key and IV are the same for all cars using Gen5:

AES_KEY = b')1Zorxo^fAhGlh$#'
AES_IV = b'aoAkfwk+#1.6G{dE'

I found them using Ghidra and the SDK for TCC893X

[puujee12]

Thank you very much for your reply. @rgerganov
And if is it possible, could you kindly share SDK for TCC893X? I searched it for few days and i couldn't find the one with working link anywhere.

[rgerganov]

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