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How to tell if keys are previously loaded in CSEc?

Question asked by gearhead1107 on Aug 30, 2018

I've created a "first boot" routine to initialize the CSEc module on our S32K, but I'd like a way for that routine to see if key slots are currently loaded or not. 

 

Is there a recommended way to do that, like reading a register?

 

The only way I can think of based on the documentation is to compute key parameters for a blank key to see if it matches the M4/ M5 from the CSEc module when I try to load a blank key

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