Re: [webauthn] Adding a choice for RP to express preferences for attestation types

@akshayku It looks like you're confusing _attestation statement formats_ ("signing/verification procedures") and  _attestation types_ ("trust models"). The two are distinct: `packed`, `tpm`, `andoid-key`, `android-safetynet` and `fido-u2f` are the currently defined attestation statement formats and "Self Attestation", "Basic Attestation", "Privacy CA" and "ECDAA" are the currently defined attestation types. Each attestation statement format can convey some nonempty subset of the attestation types. I'm not suggesting any new attestation statement formats or attestation types, the only thing new I suggest is `none` as a pseudo-attestation type used only in this preference parameter to tell the client that any attestation statement will be completely ignored.

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Received on Thursday, 19 October 2017 08:29:09 UTC