Re: [webauthn] residentKey: "preferred-if-unlimited"? (#1822)

> I think it would be good to agree on the fact that a passkey needs to be a discoverable credential, so `rk: required` in any situation where the credential to be created is called a passkey.

Passkeys _are_ resident keys/discoverable credential.

> My take on this is to not have another option, but instead encourage the browsers to inform the user and allow the user to make a choice when rk=preferred is set and the authenticator has limited storage.

Mine too, and I think that's what we have currently in at least Windows. When creating a passkey on a security key, there's a prompt that informs the user that "~something will be stored on the security key".

Probably the wording could be enhanced saying that a passkey will be created on the security key, and the remaining number of possible passkeys on the security key. CTAP 2.1 security keys report the number of remaining passkeys.

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Received on Wednesday, 11 January 2023 11:00:46 UTC