[Q] [ROM] Resign stock ROM with my own signature key

Hi everybody,

unfortunately I couldn't find a final answer to my question:

I know (or I think I know from your excellent forum):
- I can extract a stock ROM (and modify it)

But:
- can I resign the whole ROM using my own signature key, flash it back on the device and then use this to build an app (and sign/add/install it) running with e.g. android:sharedUserId="android.uid.phone" and androidrocess="com.android.phone" ?

In other words: can I replace the system signature key of a stock ROM with my own one, being able to sign my own apps with it? Or is that only possible by building the whole (custom) ROM myself?

I don't need a detailled description, a 'Give it a try!' or 'Wouldn't work because of...' however would be great!

Thanks,

deep blue

ps: any legal advice or warning is welcome, too, although I only want to dig a little deeper into my own phone.

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