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Are PUFs used, EVERY time we power on the computer to verify that nothing has been tampered with (by using CRP authentication)?

Which element performs this authentication? (bios, secureboot, I don't know)?

Where are CRPs stored? In which element are stored?

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  • Thanks, there were a few "CRPs" that could apply and only Wiki referenced it. en.wikipedia.org/wiki/Physical_unclonable_function So, as you can see, the implementation of a PUF can vary wildly from hardware application to hardware application. There is no answer in the general case. What implementation did you have in mind?
    – schroeder
    Commented Jul 9 at 11:50
  • And I think the links above answer the power-up question. Where PUF is stored is looked up with a simple google search. So, I'm thinking that you haven't done any research on this.
    – schroeder
    Commented Jul 9 at 12:03
  • I’m voting to close this question because it lacks research effort.
    – schroeder
    Commented Jul 9 at 12:04

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