/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package com.sun.org.apache.xml.internal.security.keys.keyresolver.implementations;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.cert.X509Certificate;
import javax.crypto.SecretKey;
import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException;
import com.sun.org.apache.xml.internal.security.keys.content.DEREncodedKeyValue;
import com.sun.org.apache.xml.internal.security.keys.keyresolver.KeyResolverException;
import com.sun.org.apache.xml.internal.security.keys.keyresolver.KeyResolverSpi;
import com.sun.org.apache.xml.internal.security.keys.storage.StorageResolver;
import com.sun.org.apache.xml.internal.security.utils.Constants;
import com.sun.org.apache.xml.internal.security.utils.XMLUtils;
import org.w3c.dom.Element;
/**
* KeyResolverSpi implementation which resolves public keys from a
* <code>dsig11:DEREncodedKeyValue</code> element.
*
* @author Brent Putman (putmanb@georgetown.edu)
*/
public class DEREncodedKeyValueResolver extends KeyResolverSpi {
/** {@link org.apache.commons.logging} logging facility */
private static java.util.logging.Logger log =
java.util.logging.Logger.getLogger(DEREncodedKeyValueResolver.class.getName());
/** {@inheritDoc}. */
public boolean engineCanResolve(Element element, String baseURI, StorageResolver storage) {
return XMLUtils.elementIsInSignature11Space(element, Constants._TAG_DERENCODEDKEYVALUE);
}
/** {@inheritDoc}. */
public PublicKey engineLookupAndResolvePublicKey(Element element, String baseURI, StorageResolver storage)
throws KeyResolverException {
if (log.isLoggable(java.util.logging.Level.FINE)) {
log.log(java.util.logging.Level.FINE, "Can I resolve " + element.getTagName());
}
if (!engineCanResolve(element, baseURI, storage)) {
return null;
}
try {
DEREncodedKeyValue derKeyValue = new DEREncodedKeyValue(element, baseURI);
return derKeyValue.getPublicKey();
} catch (XMLSecurityException e) {
if (log.isLoggable(java.util.logging.Level.FINE)) {
log.log(java.util.logging.Level.FINE, "XMLSecurityException", e);
}
}
return null;
}
/** {@inheritDoc}. */
public X509Certificate engineLookupResolveX509Certificate(Element element, String baseURI, StorageResolver storage)
throws KeyResolverException {
return null;
}
/** {@inheritDoc}. */
public SecretKey engineLookupAndResolveSecretKey(Element element, String baseURI, StorageResolver storage)
throws KeyResolverException {
return null;
}
/** {@inheritDoc}. */
public PrivateKey engineLookupAndResolvePrivateKey(Element element, String baseURI, StorageResolver storage)
throws KeyResolverException {
return null;
}
}