this post was submitted on 04 Oct 2023
188 points (99.0% liked)
Privacy
32108 readers
805 users here now
A place to discuss privacy and freedom in the digital world.
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
Some Rules
- Posting a link to a website containing tracking isn't great, if contents of the website are behind a paywall maybe copy them into the post
- Don't promote proprietary software
- Try to keep things on topic
- If you have a question, please try searching for previous discussions, maybe it has already been answered
- Reposts are fine, but should have at least a couple of weeks in between so that the post can reach a new audience
- Be nice :)
Related communities
much thanks to @gary_host_laptop for the logo design :)
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
It is kinda big, previously you had to send the host unencrypted to support SNI which in turn was needed to support https for multiple sites per one IP address, which was needed because we lack IP addresses. So there were basically two options: compromise privacy a tiny bit (by sending host unencrypted), or make it impossible for most websites to have any privacy at all (by making it impossible to have a https certificate).
Now you can have the best of both worlds. Granted, you need to have DoH (which still isn't the default on most systems AFAIK), but it's still a step in the right direction.
@rikudou @voxel
Wasnโt SNI happening after the handshake? Or is this completely what ECH is about.
RIP Windows XP
It's happening as part of the handshake. Probably not completely what it's about, but it was the first that came to my mind.
Edit: It has to happen before the encryption is established, because otherwise the server doesn't know which certificate to use, because it doesn't know which host is the client requesting. There's also ESNI (encrypted SNI) to solve this but I'm not sure on how many servers actually deploy it.