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Google will now make passkeys the default for personal accounts
(arstechnica.com)
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this post was submitted on 11 Oct 2023
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I have a long list of questions about PassKeys and none of this articles explains them well enough.
Nothing of that?
You don't need to export or know what is the key.
The key is different for each device.
https://youtu.be/6lBixL_qpro?si=wFFQwrfjQBKDHs5B
But is it possible in the implementation of Android/iOS?
Backups are a thing. With SSH keys I have different key for every device too, but as they are stored in an accessable file (as all computer data should be) they are backed up with the rest of the system.
So first, no, all the files should not be accessible : There are special not "files", but keys, like the key used for this method. These keys pose a huge security risk of they are leaked somehow. The key can be something used to encrypt the device/disk, encrypt a connection, and other things associated with encryption.
And because of that security risk, they are often stored in a special chip or simulated chip (like the simulated tpm 2.0 on pc cpu), and not just "stored" so any malware or who knows what can access them just by reading the drive.
Second, the key is never transfered. When you connect to another device, that other device will get another key. Or maybe could it be backed up somehow in case of recovery on another phone? But that would defeat the entire purpose of this.
How Google can do to allow you to connect to another device if the first one is lost, not sure. But it would certainly either ask for a password and a 2fa method.
That's the key question. From what it seems, it would replace a password manager with different passwords for each website, but you give Google control of the master password.
It is not for the password manager...
It's just to connect to the google account.
It is not a service to connect to other ones without passwords.