The credential returned from navigator.credentials.get() during WebAuthn authentication. Contains the assertion signature proving possession of the private key.

A slightly-modified AuthenticationCredential to simplify working with ArrayBuffers that are Base64URL-encoded in the browser so that they can be sent as JSON to the server.

A slightly-modified AuthenticatorAssertionResponse to simplify working with ArrayBuffers that are Base64URL-encoded in the browser so that they can be sent as JSON to the server.

AuthenticatorAttestationResponse in TypeScript's DOM lib is outdated (up through v3.9.7). Maintain an augmented version here so we can implement additional properties as the WebAuthn spec evolves.

A slightly-modified AuthenticatorAttestationResponse to simplify working with ArrayBuffers that are Base64URL-encoded in the browser so that they can be sent as JSON to the server.

Enhanced PublicKeyCredentialCreationOptions that knows about the latest features. Used for WebAuthn registration ceremonies.

A variant of PublicKeyCredentialCreationOptions suitable for JSON transmission to the browser to (eventually) get passed into navigator.credentials.create(...) in the browser.

A super class of TypeScript's PublicKeyCredentialDescriptor that knows about the latest transports. Should eventually be replaced by TypeScript's when TypeScript gets updated to know about it (sometime after 4.6.3)

Represents a public key credential descriptor in JSON format. Used to identify credentials for exclusion or allowance during WebAuthn ceremonies.

A super class of TypeScript's PublicKeyCredential that knows about upcoming WebAuthn features. Includes WebAuthn Level 3 methods for JSON serialization and parsing.

Enhanced PublicKeyCredentialRequestOptions that knows about the latest features. Used for WebAuthn authentication ceremonies.

A variant of PublicKeyCredentialRequestOptions suitable for JSON transmission to the browser to (eventually) get passed into navigator.credentials.get(...) in the browser.

Represents user account information for WebAuthn registration with binary data. Contains identifiers and display information for the user being registered.

Represents user account information in JSON format for WebAuthn registration. Contains identifiers and display information for the user being registered.

The credential returned from navigator.credentials.create() during WebAuthn registration. Contains the new credential's public key and attestation information.

A slightly-modified RegistrationCredential to simplify working with ArrayBuffers that are Base64URL-encoded in the browser so that they can be sent as JSON to the server.

Values for an attestation object's fmt. Defines the format of the attestation statement from the authenticator.

Specifies the preferred authenticator attachment modality.

• platform: A platform authenticator attached to the client device (e.g., Touch ID, Windows Hello)
• cross-platform: A roaming authenticator not attached to the client device (e.g., USB security key)

A super class of TypeScript's AuthenticatorTransport that includes support for the latest transports. Should eventually be replaced by TypeScript's when TypeScript gets updated to know about it (sometime after 4.6.3)

An attempt to communicate that this isn't just any string, but a Base64URL-encoded string. Base64URL encoding is used throughout WebAuthn for binary data transmission.

The two types of credentials as defined by bit 3 ("Backup Eligibility") in authenticator data:

• "singleDevice" credentials will never be backed up
• "multiDevice" credentials can be backed up

Categories of authenticators that Relying Parties can pass along to browsers during registration. Browsers that understand these values can optimize their modal experience to start the user off in a particular registration flow:

Union type for all WebAuthn credential responses in JSON format. Can be either a registration response (for new credentials) or authentication response (for existing credentials).

Equivalent to Uint8Array before TypeScript 5.7, and Uint8Array<ArrayBuffer> in TypeScript 5.7 and beyond.

Public key credential information needed to verify authentication responses. Stores the credential's public key and metadata for server-side verification.