I don't find this post convincing.
> If a consumer website decided tomorrow that it would only accept attested passkeys, it would lock out almost all of its own users, instantly. What website is going to do that? Besides, the guidance for consumer sites has been to not even request attestation for years now.
This isn't a rebuttal to the claim that they're a hidden dial. It's just saying that it's too early to crank the dial.
>Attestation Isn't What You Think It Is
>The post describes attestation as proving "that an approved passkey manager, operating system, and firmware are in use" which is simply not true.
>When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.
This point is bypassed by websites only supporting specific authenticators and then those specific authenticators only supporting specific devices/OSs/browsers/etc via other attestation frameworks.
> If a consumer website decided tomorrow that it would only accept attested passkeys, it would lock out almost all of its own users, instantly. What website is going to do that? Besides, the guidance for consumer sites has been to not even request attestation for years now.
This isn't a rebuttal to the claim that they're a hidden dial. It's just saying that it's too early to crank the dial.
>Attestation Isn't What You Think It Is
>The post describes attestation as proving "that an approved passkey manager, operating system, and firmware are in use" which is simply not true.
>When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.
This point is bypassed by websites only supporting specific authenticators and then those specific authenticators only supporting specific devices/OSs/browsers/etc via other attestation frameworks.