Re: [webauthn] RPs cannot show "You've Already Registered This Authenticator" Message

Would sending a getAssertion request suffice? So, first a query to determine that the credential was previously registered, and if so, just send a getAssertion request. If there are multiple authenticators, and a user affirmatively touches a previously registered one, a getAssertion response would be received. In that case, it can be definitively be determined from the response that this was a previously registered authenticator. If a makeCredential response is received, then the authenticator is new to the RP.

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Received on Friday, 16 February 2018 21:29:31 UTC