WebAuthn Compatibility Check

You can find an overview of both platform and external authenticators on Webauthn Compatibility page.

Credential

Credential is a private-public keypair that is created for a website instead of using password.
CredentialsContainer

The CredentialsContainer interface of the Credential Management API exposes methods to request credentials and notify the user agent when events such as successful sign in or sign out happen.
PublicKeyCredential

The PublicKeyCredential interface inherits from Credential and contains the attributes that are returned to the caller when a new credential is created, or a new assertion is requested.
Platform Authenticator

Platform authenticators, also known as internal authenticators, such as a fingerprint scanner built into a smartphone. Platform authenticators are limited to authenticating a user via a specific device (in the case of Windows Hello, the laptop running it).
AuthenticatorResponse

The AuthenticatorResponse interface represents the authenticator's response to a client’s request for the creation of a new public key credential. It contains information about the new credential that can be used to identify it for later use.
AttestationResponse

The AuthenticatorAttestationResponse interface returns an ArrayBuffer containing the new public key, as well as signature over the entire attestationObject with a private key that is stored in the authenticator when it is manufactured. As part of the CredentialsContainer.
AssertionResponse

The AuthenticatorAssertionResponse interface represents an authenticator's response to a client’s request for generation of a new authentication assertion. This response contains a cryptographic signature proving possession of the credential private key, and optionally evidence of user consent to a specific transaction.

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