/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.xml.security.keys.content;
import java.security.PublicKey;
import org.apache.xml.security.exceptions.XMLSecurityException;
import org.apache.xml.security.keys.content.keyvalues.DSAKeyValue;
import org.apache.xml.security.keys.content.keyvalues.RSAKeyValue;
import org.apache.xml.security.utils.Constants;
import org.apache.xml.security.utils.SignatureElementProxy;
import org.apache.xml.security.utils.XMLUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* The KeyValue element contains a single public key that may be useful in
* validating the signature. Structured formats for defining DSA (REQUIRED)
* and RSA (RECOMMENDED) public keys are defined in Signature Algorithms
* (section 6.4). The KeyValue element may include externally defined public
* keys values represented as PCDATA or element types from an external namespace.
*
* @author $Author: vishal $
*/
public class KeyValue extends SignatureElementProxy implements KeyInfoContent {
/** {@link org.apache.commons.logging} logging facility */
static org.apache.commons.logging.Log log =
org.apache.commons.logging.LogFactory.getLog(KeyValue.class.getName());
/**
* Constructor KeyValue
*
* @param doc
* @param dsaKeyValue
*/
public KeyValue(Document doc, DSAKeyValue dsaKeyValue) {
super(doc);
XMLUtils.addReturnToElement(this._constructionElement);
this._constructionElement.appendChild(dsaKeyValue.getElement());
XMLUtils.addReturnToElement(this._constructionElement);
}
/**
* Constructor KeyValue
*
* @param doc
* @param rsaKeyValue
*/
public KeyValue(Document doc, RSAKeyValue rsaKeyValue) {
super(doc);
XMLUtils.addReturnToElement(this._constructionElement);
this._constructionElement.appendChild(rsaKeyValue.getElement());
XMLUtils.addReturnToElement(this._constructionElement);
}
/**
* Constructor KeyValue
*
* @param doc
* @param unknownKeyValue
*/
public KeyValue(Document doc, Element unknownKeyValue) {
super(doc);
XMLUtils.addReturnToElement(this._constructionElement);
this._constructionElement.appendChild(unknownKeyValue);
XMLUtils.addReturnToElement(this._constructionElement);
}
/**
* Constructor KeyValue
*
* @param doc
* @param pk
*/
public KeyValue(Document doc, PublicKey pk) {
super(doc);
XMLUtils.addReturnToElement(this._constructionElement);
if (pk instanceof java.security.interfaces.DSAPublicKey) {
DSAKeyValue dsa = new DSAKeyValue(this._doc, pk);
this._constructionElement.appendChild(dsa.getElement());
XMLUtils.addReturnToElement(this._constructionElement);
} else if (pk instanceof java.security.interfaces.RSAPublicKey) {
RSAKeyValue rsa = new RSAKeyValue(this._doc, pk);
this._constructionElement.appendChild(rsa.getElement());
XMLUtils.addReturnToElement(this._constructionElement);
}
}
/**
* Constructor KeyValue
*
* @param element
* @param BaseURI
* @throws XMLSecurityException
*/
public KeyValue(Element element, String BaseURI)
throws XMLSecurityException {
super(element, BaseURI);
}
/**
* Method getPublicKey
*
* @return the public key
* @throws XMLSecurityException
*/
public PublicKey getPublicKey() throws XMLSecurityException {
Element rsa = XMLUtils.selectDsNode(this._constructionElement.getFirstChild(),
Constants._TAG_RSAKEYVALUE,0);
if (rsa != null) {
RSAKeyValue kv = new RSAKeyValue(rsa,
this._baseURI);
return kv.getPublicKey();
}
Element dsa = XMLUtils.selectDsNode(this._constructionElement,
Constants._TAG_DSAKEYVALUE,0);
if (dsa != null) {
DSAKeyValue kv = new DSAKeyValue(dsa,
this._baseURI);
return kv.getPublicKey();
}
return null;
}
/** @inheritDoc */
public String getBaseLocalName() {
return Constants._TAG_KEYVALUE;
}
}