If this is permitted, then I see no problem with this plan. It will force people to do what they already should be doing: have a plan in place to rotate certificates in case of revocation.
> The point is that right now revocation is so painful that it’s causing CAs to side with subscriber convenience over the integrity of the web PKI. Sampled, controlled revocations let us identify points of pain before they have security implications, and motivate Subscribers to prepare their systems—whether through automation or not, up to them, I’m not their dad—to tolerate on-time revocation. We care about the likely outcomes of automation, such as tolerance of short revocation or expiry timelines, really, but if BigSlowCo wants to staff a 24-hour cert maintenance squad such that they don’t (successfully) pressure their CA into blowing revocation deadlines, that’s their opex choice. Directly evaluating ecosystem capability around prompt revocation is the only way I can think of to identify areas of danger or weakness before they become issues for the web.
This is like testing the fire extinguishers.
The reality is the CAs could tell Mozilla to go pound sand and they would have no recourse. Is there not a governing body for certificate policies with voting members?
CA trust should be handled at the OS vendor level. Mozilla having its own trust anchors is a relic of the past. If CAs refuse to comply, they at worst inconvenience 2.5% of their customers temporarily until they find a better browser.
As for Microsoft, they are simply asleep at the wheel, trusting terrible CAs that do things like misissue a google.com certificate <https://bugzilla.mozilla.org/show_bug.cgi?id=1934361>.
Who's the "vendor" for Linux? IBM?
The outcome of this idea is Google & Microsoft can MITM all internet traffic.
Technically ACME supports challenges that work without "direct connection to the internet", eg. DNS.
But on the flip side those 30 unlucky souls are gonna be pissed. There's so many other less disruptive ways you could do this.
As opposed to 30-random entities.
