Re: [webauthn] Adds timeSinceUv extension (#2052)

@rlin1 this is only used with UV=preferred. 

Spec text (line 7622): [=registration extension|Registration=] and [=authentication extension|Authentication=] when {{AuthenticatorSelectionCriteria/userVerification}} is set to {{UserVerificationRequirement/preferred}}.

If an RP wants a fresh UV and will fail or otherwise step up, they should use UV=required.

> the RP could tell the passkey provider that fresh user verification is required

That is what UV=required does today.

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Received on Wednesday, 27 March 2024 15:58:05 UTC