@XmlElementRefs({
        @XmlElementRef(name = "X509Certificate", namespace = "http://www.w3.org/2000/09/xmldsig#", type = JAXBElement.class),
        @XmlElementRef(name = "X509SKI", namespace = "http://www.w3.org/2000/09/xmldsig#", type = JAXBElement.class),
        @XmlElementRef(name = "X509CRL", namespace = "http://www.w3.org/2000/09/xmldsig#", type = JAXBElement.class),
        @XmlElementRef(name = "X509SubjectName", namespace = "http://www.w3.org/2000/09/xmldsig#", type = JAXBElement.class),
        /*@XmlElementRef(name = "X509IssuerSerial", namespace = "http://www.w3.org/2000/09/xmldsig#", type = JAXBElement.class)*/
    })