Sharing and phishing are on two different axes. You can have shareable credentials that are phishing-resistant when used.
You can have hardware-backed SSH keys that are not cloneable. You would need the browser to prevent phishing while still using SSH agent as its underlying signature mechanism (implied by my "in a consumer package").
Right, which is why Passkeys are consumer-minded enhancement to SSH keys in that browsers are asked to require that every domain gets a different passkey. I've seen SSH agents with that requirement, but yes very few users of SSH use more than one public key per device at a time, and many even use the same private key across multiple devices rather than enroll multiple SSH public keys.
SSH doesn't prevent key sharing (and hence, phishing), so it's fundamentally different in the context of this discussion.
> ...sharing (and hence, phishing)
Sharing and phishing are on two different axes. You can have shareable credentials that are phishing-resistant when used.
You can have hardware-backed SSH keys that are not cloneable. You would need the browser to prevent phishing while still using SSH agent as its underlying signature mechanism (implied by my "in a consumer package").
Right, which is why Passkeys are consumer-minded enhancement to SSH keys in that browsers are asked to require that every domain gets a different passkey. I've seen SSH agents with that requirement, but yes very few users of SSH use more than one public key per device at a time, and many even use the same private key across multiple devices rather than enroll multiple SSH public keys.