← Back to context

Comment by SahAssar

1 day ago

* DoT/DoH

* An outer SNI name when doing ECH perhaps

* Being able to host secure http/mail/etc without being beholden to a domain registrar

4 comments

SahAssar

Reply
miladyincontrol  1 day ago

IP addresses arent valid for the SNI used with ECH, even with TLS. On paper I do agree though it would be a decent option should things one day change there.

  • tialaramex  12 hours ago

    I think that would have been an alternate present rather than a plausible future.

    ECH needs for the outer (unencrypted) SNI to be somewhat plausible as a destination. For ECH GREASE what happens is that this outer SNI was real, what looks like the encrypted inner ECH data is just random noise.

    For non-GREASE ECH we want to look as much like the GREASE as we can, except that it's not noise that's the encrypted payload with a real inner SNI among other things.