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AuthenticatorAttestationResponse

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

When a WebAuthn authenticator creates a new PublicKeyCredential via a create() call, the PublicKeyCredential.response value will be an AuthenticatorAttestationResponse object. This object contains two properties: 1) a clientDataJSON property inherited from AuthenticatorResponse; and 2) an attestationObject that is an authenticator's way of providing a root of trust for the newly created keypair.

Properties

AuthenticatorAttestationResponse.clientDataJSON: Inherited from AuthenticatorResponse.clientDataJSON. Includes the client data for the authentication, such as origin and challenge.
AuthenticatorAttestationResponse.attestationObject: An authenticator's cryptographic attestation that a newly generated keypair was created by that authenticator.

Methods

None.

Examples

TBD

Specifications

Specification	Status	Comment
Web Authentication: An API for accessing Public Key Credentials Level 1	Candidate Recommendation	Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	65 Disabled 65 Disabled Only support USB U2F tokens Disabled From version 65: this feature is behind the `Web Authentication API` preference (needs to be set to `true`). To change preferences in Chrome, visit chrome://flags.	18	60 60 Only support USB U2F tokens	?	?	?
`attestationObject`	65 Disabled 65 Disabled Only support USB U2F tokens Disabled From version 65: this feature is behind the `Web Authentication API` preference (needs to be set to `true`). To change preferences in Chrome, visit chrome://flags.	18	60 60 Only support USB U2F tokens	?	?	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	?	?	?	?	?	?	?
`attestationObject`	?	?	?	?	?	?	?

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https://developer.mozilla.org/en-US/docs/Web/API/AuthenticatorAttestationResponse