Comment by markhahn
16 hours ago
I'm always mystified why we haven't leveraged DNS.
I mean: why not have cookie policy set by a flag in DNS? Not unlike DKIM or even SSHFP.
Of course, we wouldn't need the entire certificate industry if we simply looked up a site's PK along with its DNS record...
No, we wouldn't, you're right. We'd just replace LetsEncrypt and the ISRG with the security track records and policy integrity of the major DNS providers, many of which are state-controlled, and the largest of which are too important to revoke.
Really hard to understand why that hasn't happened yet!
You can chose under which registry you can register your domain. You cannot choose which (in many cases also state controlled) web PKI certificate authority can sign certificates for your domain name. And Web PKI revocation is a joke that many clients don't check at all and others do using privacy-hostile mechanisms.
But sure, keep spreading FUD like you always do on this topic.
You're talking about DAME (which email uses). It has it's own issues like not having transparency logs, and if a DNSSEC signing keyholder goes rogue, there is no easy way to revoke trust (unlike CRLs for Web PKI).
Web PKI also has not had transparency logs until fairly recently. And Web PKI revocation is a joke as well. At least a "rogue" DNSSEC signer can only sign domains they have been delegated authority over and not literally everything.