How do passkeys work across devices?
How do passkeys work across devices?
Let's start with a smartphone. A user creates an account with a passkey for a service, that passkey gets stored on their smartphone, and they can use biometrics to sign in from then on. The private key is stored on the smartphone. Great.
But then how do you sign into that same service from a different device?
If it's by using a password manager, some third party piece of software, How do you sign in on a device where you're not allowed to install third party software?
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How do you sign in on a device where you’re not allowed to install third party software?
You don’t. Passkeys are very ecosystem-centric right now. If you are in apple, google, or Microsoft entirely, they will all allow you to move your passkeys around to different systems using the same basic mechanism they used for password keeping. Moving across ecosystems is absolutely broken - or rather - has never worked.
I think there are mechanisms to allow passkeys to work via Bluetooth or even via camera, as an external authenticator essentially, but I’ve never personally tried them.
This doesn't exist
FYI there's a bug currently that lets everyone see the comment even after they are deleted
I use sync on android but I believe it's a bug in the API so it should be everywhere
Just try to reply to the comment and you'll see it
Good to know
this has been a thing for a few months now
I use camera one for github on a device outside my icloud, works great. A few websites also allowed me to add second passkeys (bitwarden in addition to icloud)