@Override
    public String getFriendlyName() {
        return "YubiKey";
    }
The authentication provider for yubikey.

@author Misagh Moayyed
@since 5.0.0
support/cas-server-support-yubikey-core-mfa/src/main/java/org/apereo/cas/adaptors/yubikey/YubiKeyMultifactorAuthenticationProvider.java