Thread: Garmin GMA protection and the "Unauthenticated" status

In fact, we can decrypt GMA files. Firmware does it, so we can do it also. The problem is, we can't forge them, because they are signed with 2048-bit RSA and we don't know the private key.
But here is the public key below. Maybe someone clever can break it

Code:

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UPD:
Btw, here is the public key, which is used for GCD signing (2048-bit RSA also).

Code:

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