> The point is that you can't kill a TLD operator.
I agree, you can't kill a TLD operator. But WebPKI relies on TLD operators to establish identity, so I don't see what we gain from WebPKI, other than mandatory CT logs, and not having to faff about with DNSSEC :P ... both of those are pretty valuable, of course.
I'll put it another way: why do we want a CA to tell us that someone controls a domain, when the TLD could tell us? The TLD is authoritative with regard to who controls a domain; CAs can only report on what they have observed.
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> The point is that you can't kill a TLD operator.
I agree, you can't kill a TLD operator. But WebPKI relies on TLD operators to establish identity, so I don't see what we gain from WebPKI, other than mandatory CT logs, and not having to faff about with DNSSEC :P ... both of those are pretty valuable, of course.
I'll put it another way: why do we want a CA to tell us that someone controls a domain, when the TLD could tell us? The TLD is authoritative with regard to who controls a domain; CAs can only report on what they have observed.