“read the actual definition”;stellar contribution there, mate. I checked and sure enough its exactly in line with my comments.

I’ve been discussing the practical implementation of PKI as it exists in the real world, specifically in the context of bootloader verification and TLS certificate validation. You know, the actual systems people use every day.

But please, do enlighten me with whatever Wikipedia definition you’ve just skimmed that you think contradicts anything I’ve said. Because here’s the thing: whether you want to pedantically define PKI as “any infrastructure involving public keys” or specifically as “a hierarchical trust model with certificate authorities,” my point stands completely unchanged.

In the context that spawned this entire thread, LineageOS and bootloader signature verification, there is a chain of trust, there are designated trusted authorities, and signatures outside that chain are rejected. That’s PKI. That’s how it works. That’s what I described.

If your objection is that I should have been more precise about distinguishing between “Web PKI” and “PKI generally,” then congratulations on missing the forest for the trees whilst simultaneously contributing absolutely nothing of substance to the discussion.

But sure, I’m the one who needs to read definitions. Perhaps you’d care to actually articulate which part of my explanation was functionally incorrect for the use case being discussed, rather than posting a single snarky sentence that says precisely nothing?

EDIT: your edit is much more nuanced but still misses the point; https://imgur.com/a/n2VwltC