/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 com.sun.org.apache.xml.internal.security.keys.content.x509;
import java.security.MessageDigest;
import java.security.cert.X509Certificate;
import com.sun.org.apache.xml.internal.security.algorithms.JCEMapper;
import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException;
import com.sun.org.apache.xml.internal.security.utils.Constants;
import com.sun.org.apache.xml.internal.security.utils.Signature11ElementProxy;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* Provides content model support for the <code>dsig11:X509Digest</code> element.
*
* @author Brent Putman (putmanb@georgetown.edu)
*/
public class XMLX509Digest extends Signature11ElementProxy implements XMLX509DataContent {
/**
* Constructor XMLX509Digest
*
* @param element
* @param BaseURI
* @throws XMLSecurityException
*/
public XMLX509Digest(Element element, String BaseURI) throws XMLSecurityException {
super(element, BaseURI);
}
/**
* Constructor XMLX509Digest
*
* @param doc
* @param digestBytes
* @param algorithmURI
*/
public XMLX509Digest(Document doc, byte[] digestBytes, String algorithmURI) {
super(doc);
this.addBase64Text(digestBytes);
this.constructionElement.setAttributeNS(null, Constants._ATT_ALGORITHM, algorithmURI);
}
/**
* Constructor XMLX509Digest
*
* @param doc
* @param x509certificate
* @param algorithmURI
* @throws XMLSecurityException
*/
public XMLX509Digest(Document doc, X509Certificate x509certificate, String algorithmURI) throws XMLSecurityException {
super(doc);
this.addBase64Text(getDigestBytesFromCert(x509certificate, algorithmURI));
this.constructionElement.setAttributeNS(null, Constants._ATT_ALGORITHM, algorithmURI);
}
/**
* Method getAlgorithmAttr
*
* @return the Algorithm attribute
*/
public Attr getAlgorithmAttr() {
return this.constructionElement.getAttributeNodeNS(null, Constants._ATT_ALGORITHM);
}
/**
* Method getAlgorithm
*
* @return Algorithm string
*/
public String getAlgorithm() {
return this.getAlgorithmAttr().getNodeValue();
}
/**
* Method getDigestBytes
*
* @return the digestbytes
* @throws XMLSecurityException
*/
public byte[] getDigestBytes() throws XMLSecurityException {
return this.getBytesFromTextChild();
}
/**
* Method getDigestBytesFromCert
*
* @param cert
* @param algorithmURI
* @return digest bytes from the given certificate
*
* @throws XMLSecurityException
*/
public static byte[] getDigestBytesFromCert(X509Certificate cert, String algorithmURI) throws XMLSecurityException {
String jcaDigestAlgorithm = JCEMapper.translateURItoJCEID(algorithmURI);
if (jcaDigestAlgorithm == null) {
Object exArgs[] = { algorithmURI };
throw new XMLSecurityException("XMLX509Digest.UnknownDigestAlgorithm", exArgs);
}
try {
MessageDigest md = MessageDigest.getInstance(jcaDigestAlgorithm);
return md.digest(cert.getEncoded());
} catch (Exception e) {
Object exArgs[] = { jcaDigestAlgorithm };
throw new XMLSecurityException("XMLX509Digest.FailedDigest", exArgs);
}
}
/** @inheritDoc */
public String getBaseLocalName() {
return Constants._TAG_X509DIGEST;
}
}