Re:China Telecom's Internet Traffic Misdirection
by tialaramex on Tuesday November 06, 2018 @03:57AM
(#18389398)
If there's a CAA record for example.com that doesn't allow Let's Encrypt (CAA tag "letsencrypt.org") then this won't work. Let's Encrypt will check CAA (they will use DNSSEC if your domain has that) and verify that their tag is present before issuing if you have a CAA record.
If you're a larger outfit you should pick a trustworthy CA vendor or (two independent vendors according to your risk management profile), and lock CAA to those trusted vendors. You can then agree whatever terms suit your business on top of the Ten Blessed Methods, so as to avoid bad guys stealing your names. For example Facebook has an agreement with their chosen CA that all facebook.com and fb.com issuances get signed off by Facebook's network security people. No "But I'm the head of Asian marketing! I need this immediately" bullshit, it gets a sign off from netsec or it doesn't get issued.
If you're a larger outfit you should pick a trustworthy CA vendor or (two independent vendors according to your risk management profile), and lock CAA to those trusted vendors. You can then agree whatever terms suit your business on top of the Ten Blessed Methods, so as to avoid bad guys stealing your names. For example Facebook has an agreement with their chosen CA that all facebook.com and fb.com issuances get signed off by Facebook's network security people. No "But I'm the head of Asian marketing! I need this immediately" bullshit, it gets a sign off from netsec or it doesn't get issued.