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Email is the oldest Federated service.
(lemmy.world)
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this post was submitted on 11 Jun 2023
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Technology
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Absolutely. Now we're stuck using a protocol that has zero encryption because decades ago no one thought about that. All our private correspondence is readable by every ISP and government it passes. If only we could make an email 2.0...
No, encryption was considered. It was supported from pretty early on via PGP. If you check out decent mail clients (obligatory digdeeper), you'll find the tooling.
PGP email has nothing to do with the email protocol. All your message metadata and headers are still not encrypted/can’t be encrypted. You can only encrypt some payload with a PGP key, and it’s up to the receiver to figure out whether or not they want to trust any of the message metadata. The entire envelope is still plaintext everywhere. PGP email is just email, but you’re sending some random encrypted text in it.
Email with PGP is very far from secure. No forward secrecy (one mistake and the entire thread history is revealed) and metadata is unencrypted.
I mean, it's not like theres really anything stopping the big providers to implement PGP on top of Email.
They just don't, because users don't care. So you have to do it yourself, in a plugin or whatever.
Still works, just more cumbersome, but I wouldn't blame the protocol... at all.
Adopting a consistent way to do it that everyone agrees on is the hardest part. PGP works but you have to make it easy and integrate it with all the top email providers so that most people are using it without even noticing.
you wouldn't even relly need to find one consistent way, just identify the way servers do it, and have a list of supported methods.
let's say there are implenetations a,b,c, and d
if let's say google supported b,c and d, and apple b, and hotmal c and d, only hotmail-apple traffic would be unencrypted as they can't agree on a common method.
pretty sure that's how TLS (i.e. https) works.
It used to, but v1.3 supports only 3 ciphers now.