import com.sun.org.apache.xml.internal.security.keys.content.x509.XMLX509SKI; //导入依赖的package包/类
private PrivateKey resolveX509SKI(XMLX509SKI x509SKI) throws XMLSecurityException, KeyStoreException {
    log.log(java.util.logging.Level.FINE, "Can I resolve X509SKI?");

    Enumeration<String> aliases = keyStore.aliases();
    while (aliases.hasMoreElements()) {
        String alias = aliases.nextElement();
        if (keyStore.isKeyEntry(alias)) {

            Certificate cert = keyStore.getCertificate(alias);
            if (cert instanceof X509Certificate) {
                XMLX509SKI certSKI = new XMLX509SKI(x509SKI.getDocument(), (X509Certificate) cert);

                if (certSKI.equals(x509SKI)) {
                    log.log(java.util.logging.Level.FINE, "match !!! ");

                    try {
                        Key key = keyStore.getKey(alias, password);
                        if (key instanceof PrivateKey) {
                            return (PrivateKey) key;
                        }
                    } catch (Exception e) {
                        log.log(java.util.logging.Level.FINE, "Cannot recover the key", e);
                        // Keep searching
                    }
                }
            }
        }
    }

    return null;
}
 

import com.sun.org.apache.xml.internal.security.keys.content.x509.XMLX509SKI; //导入依赖的package包/类
/**
 * Method itemSKI
 *
 * @param i
 * @return the X509SKI, null if not present
 * @throws XMLSecurityException
 */
public XMLX509SKI itemSKI(int i) throws XMLSecurityException {

    Element e =
        XMLUtils.selectDsNode(
            this.constructionElement.getFirstChild(), Constants._TAG_X509SKI, i);

    if (e != null) {
        return new XMLX509SKI(e, this.baseURI);
    }
    return null;
}
 

import com.sun.org.apache.xml.internal.security.keys.content.x509.XMLX509SKI; //导入依赖的package包/类
/**
 * Method itemSKI
 *
 * @param i
 * @return the X509SKI, null if not present
 * @throws XMLSecurityException
 */
public XMLX509SKI itemSKI(int i) throws XMLSecurityException {

   Element e = XMLUtils.selectDsNode(this._constructionElement.getFirstChild(),
                                             Constants._TAG_X509SKI,i);

   if (e != null) {
      return new XMLX509SKI(e, this._baseURI);
   }
   return null;
}
 

import com.sun.org.apache.xml.internal.security.keys.content.x509.XMLX509SKI; //导入依赖的package包/类
/**
 * Method addSKI
 *
 * @param skiBytes
 */
public void addSKI(byte[] skiBytes) {
    this.add(new XMLX509SKI(this.doc, skiBytes));
}
 

import com.sun.org.apache.xml.internal.security.keys.content.x509.XMLX509SKI; //导入依赖的package包/类
/**
 * Method add
 *
 * @param xmlX509SKI
 */
public void add(XMLX509SKI xmlX509SKI) {
    this.constructionElement.appendChild(xmlX509SKI.getElement());
    XMLUtils.addReturnToElement(this.constructionElement);
}