Re: [webauthn] Discussing mechanisms for enterprise RP's to enforce bound properties of credentials (#1739)

> The case _without_ DPK is not as good, as the RP couldn't distinguish first-time use of the credential on a device from subsequent credential usage on a device - losing the ability to detect _strong_ (in the sense of FIDO before Passkeys) device binding.

There is difference in how DPK works for registration vs authentication. We want to block keys at *registration* so the features of DPK which are around attesting via authentication flows isn't relevant. 

> 
> --> back to my previous opinion that DPK support would be sufficient for Enterprise RPs.

It's not. 

Erroring "after" registration and trying to communicate why that error occurred is a terrible process. It will frustrate users.  This is basic elements of human interaction psychology that we need to introduce a *constraint* before the process to prevent the user making the error in the first place. 

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Received on Saturday, 18 June 2022 23:10:41 UTC