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Re: [webauthn] <new proposal> Extending WebAuthn Protocol for Remote Authentication (#1580)

From: Shane Weeden via GitHub <sysbot+gh@w3.org>
Date: Tue, 09 Mar 2021 03:43:52 +0000
To: public-webauthn@w3.org
Message-ID: <issue_comment.created-793336220-1615261431-sysbot+gh@w3.org>
I can't see how this is really going to provide a proof of anything particularly useful unless the camera itself (in the example use case of signing an image) was hardware that included an attest-able FIDO2 authenticator capability and the process of taking and then immediately signing the photograph was therefore "within the authenticator boundary".  To suggest the browser can safely broker that transaction is (IMHO) placing too much trust in the relationship the browser has with other peripherals on the device.

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