AuthenticatorAssertionResponse: authenticatorData property

Secure context

The authenticatorData property of the AuthenticatorAssertionResponse interface returns an ArrayBuffer containing information from the authenticator such as the Relying Party ID Hash (rpIdHash), a signature counter, test of user presence, user verification flags, and any extensions processed by the authenticator.

Value

An ArrayBuffer with a byteLength of at least 37 bytes, which contains the data structure explained in Authenticator data.

Examples

See Retrieving a public key credential for a detailed example.

Specifications

Browser compatibility