brainchain

> Sure, but then you still need a protocol between user agent and website. Yes of course. Just like you do for passkeys. > Passkeys can in fact be backed by exactly this, i.e. a HMAC-only stateless implementation backed by a single password: https://github.com/lxgr/brainchain No, not quite. It's written on there: > "Login" with your passphrase, and you can create non-discoverable WebAuthN credentials (don't call them passkeys, but definitely be reminded of them) at ~all~ some websites supporting them (...) That's the thing: with passwords, a website/app cannot prevent you from controlling the password yourself. With passkeys and attestation it can.

Sure, but then you still need a protocol between user agent and website. If you just do this in Javascript, you're not protected against phishing sites just forwarding the password entered directly. Passkeys can in fact be backed by exactly this, i.e. a HMAC-only stateless implementation backed by a single password: https://github.com/lxgr/brainchain