Oddbean

Very cool. Do you know how identities are protected if it uses Nostr keys as an identity? Are the Nostr keys randomized? Is there a way to write to an npub? I notice that your identity does not look like npub.

It's actually good it does not use the key used for posting, but it would be cool if we could publish a signed note that ties the normal npub to the keychat identity for discovery. If I added someone to Nostr, having an option to write to them without exchanging some contact information would be good. They can write me Nostr DM anyway. But then this could also work for SimpleX and others, essentially rebuilding the identity part of keybase, which was quite a good idea. No need of web of trust if you already got a social reputation - a website, GitHub account, PGP key, Twitter account, ... Nostr could be the thing that ties it up and does not rely on Keybase corporation which was acquired by Zoom and more or less stopped working on the project.

When you want a friend to add you on Keychat, you have two options: tell them your QR code or your Npub. We recommend using the QR code because once someone knows your QR code, they can send you messages encrypted with Signal directly, and the QR code is only valid for 24 hours. If you use your Npub, after someone knows your Npub, the first message can only be encrypted with NIP4 or NIP17. Only after they reply can messages be encrypted with Signal.

Cool, thank you, that makes sense. Three more questions if you want to answer - can I use my own relay? - how would you compare keychat to SimpleX and Signal? When would you use which? - groups support? I'm going to set it up, play with it and update: https://juraj.bednar.io/en/blog-en/2022/05/03/encrypted-messengers-comparison/

1、yes, of course. see below note. nostr:note15sza0s4yrxzx35cn3cs5xarxd48h7tgc5eyy4x0ml98jqfrk92gswyvhc8 2、 see below note nostr:note186wfn3zdrds9g3k2rgqxtzxxr3azfzr3vz6aa68c52kns7wqpduspmk2hh 3、yes, two kinds of group. nostr:note1927pnd00l22umju9xldyjc3xsrhn28tk0rxczn50pygwaft5h8kqcex9y9