this post was submitted on 14 Oct 2024
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Privacy
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There are already systems in place that allow temporary passkey sharing, for example with a QR code (CaBLE) https://www.corbado.com/blog/webauthn-passkey-qr-code
Doesn't that imply you still have to open up your phone to temporarily share to your pc whenever you need it?
Yes but when you are logged in, you can add the passkey that belongs to the new device to your account
That doesn't transfer the private key though (or at least it shouldn't).
I'm pretty sure it's just transferring public keys and signing the response with the private key on your phone.