Autocrypt support

[BuZZ-dEE]

Hi there, is Cypht planning to follow the path of other mail clients and implement Autocrypt? Seems like most major clients are planning on releasing support for it soon (K9, Thunderbird, Mailpile). Would be nice if Cypht follows and stays compatible.

[dumblob]

It's very fresh and there is no RFC, not even the intent to submit one is to be found. But I really like the idea and after reading just a few posts and issues I'm confident the very few authors and contributors to Autocrypt are enough knowledgeable persons to make it happen.

So I'd suggest considering support for Autocrypt as a standardized opportunistic and extremely user-friendly end-to-end encryption in Cypht.

[jasonmunro]

I skimmed the Level 1 doc here: https://autocrypt.org/level1.html Looks interesting. My take is this specification is more about key management and the ability to opt in to encrypted conversations without having deal with the keys yourself. The end result of using autocrypt is a standard PGP signed/encrypted message body. Just like with PGP support, one issue here is safely storing the private keys, since Cypht is generally hosted on a server. (The PGP module, assuming I ever get the time to get back to it, never lets the private key leave the user's device, all the encryption/signing is done in javascript).

Anyway, it's a neat idea, thanks @BuZZ-dEE for the suggestion. When I can, I will dig into the spec more and see what we can do!

[marclaporte]

Autocrypt support is coming to Cypht.

Once it lands, we should test with the bot and get listed here:
https://autocrypt.org/dev-status.html

[marclaporte]

Work in progress: #652