Re:Ok Google: please publish your DKIM secret keys
by arkadiyt on Monday November 16, 2020 @12:04PM
(#25114065)
If you had access to a public key for every email address then why stop at authentication - you could encrypt all email on the web. But we don't, so we can't.
[ Parent
| on HN ]
Re:Ok Google: please publish your DKIM secret keys
by CodesInChaos on Monday November 16, 2020 @03:15PM
(#25116471)
Authentication in this context doesn't need to be end-to-end. Instead of a custom protocol, we could probably just use SSL client certificates authenticating the sending domain to achieve the same effect.