Re: [webauthn] Is there a way to store metadata in the authenticator with/without an extension? (#1613)

You can put data in the, which will be persisted by CTAP2 authenticators. (Although you shouldn't put anything sensitive in there.)

The "small blob" extension is credBlob:

It's supported in Chrome (although probably hasn't reached stable yet), but needs CTAP 2.1 authenticators.

largeBlob is also supported in Chrome behind a flag, but authenticators are likewise rare.

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Received on Thursday, 20 May 2021 20:49:59 UTC