Authenticate with a passkey and extract the PRF output for the given fileId. Throws LvePrfNotSupportedError if the authenticator does not support PRF. Throws if WebAuthn is not available.
Authenticate with a passkey and extract the PRF output for the given fileId. Throws LvePrfNotSupportedError if the authenticator does not support PRF. Throws if WebAuthn is not available.