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pedantic nit: the yubikey is a device so you are arguably using one unique key per device
by ycombinatrix 2y ago
pedantic nit: the yubikey is a device so you are arguably using one unique key per device
- craftkiller 2y agoHaha technically true, but I don't think that was the kind of device they were referring to. Even so, it is possible to use the same key on multiple yubikeys. You generate a PGP key on a secure computer and then load that key onto multiple yubikeys. Then you use gpg as your ssh agent. But this is less secure than using keys generated on-device by the yubikey because your private key exists (hopefully temporarily) as a file on the computer where you generated it.
- joshuamorton 2y agoNo this is absolutely what I meant: A passkey and a PGP key function very similarly in this capacity, a passkey for a site can be generated on a yubikey and used across devices in just the same way.