This is huge! It sounds like they're finally going implement cross-device synced credentials; a move I've been advocating now for the last two and a half years[1]. Widespread support for this feature is, in my opinion, the last thing needed to make WebAuthn viable as a complete replacement for passwords on the web. The white paper is here: https://media.fidoalliance.org/wp-content/uploads/2022/03/Ho... Seems like the…
I went through the white paper, yet still don’t completely understand how it is supposed to work cross device, granted I’m new to Fido. Let’s say I have the same key synched between my laptop, smartphone and tablet. When I wake up in the morning, will there be a ceremony of unlocking my phone (standard non Fido way I guess?) then unlock my tablet from my phone, then the laptop from one of unlocked devices ? With some…
> 1. Allow users to automatically access their FIDO sign-in credentials (referred to by some as a “passkey”) on many of their devices, even new ones, without having to re-enroll every account.
> 2. Enable users to use FIDO authentication on their mobile device to sign in to an app or website on a nearby device, regardless of the OS platform or browser they are running.
Point number 2 directly invokes cross-device, cross-platform authentication. It sounds like "you can use your iPhone or Android to sign into a website on your Windows PC" to me. Whether passkeys might actually sync between iCloud keychain and whatever Microsoft offers seems unclear but much less likely