Cross-Device FIDO2 WITHOUT QR Code

[Azer Kaan Dasdemir]

Hello everyone,

I want to explore possibilities of following use case
Given user is using the same AppleID on all their devices.

1 - User registers on their Macbook Safari Browser.
2 - User opts in for passwordless login and saves passkey on their Macbook.

3 - User goes to same website on the safari browser on their iPhone.

4 - User is logged in passwordless thanks to shared keypass via icloud keychain.

Currently I havent seen an example where this works and user is asked to turn on bluetooth and scan a QR code. Could you let me know if this is possible or if there is an example on production?

Thanks,

Kaan

[Adam Langley]

If both devices are signed into the same iCloud account, have iCloud Keychain enabled, and are running current software, then this works today.

Cheers

AGL