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/**
* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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package com.sun.org.apache.xml.internal.security.keys.content.keyvalues;
import java.math.BigInteger;
import java.security.Key;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.RSAPublicKeySpec;
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.I18n;
import com.sun.org.apache.xml.internal.security.utils.SignatureElementProxy;
import com.sun.org.apache.xml.internal.security.utils.XMLUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class RSAKeyValue extends SignatureElementProxy implements KeyValueContent {
/**
* Constructor RSAKeyValue
*
* @param element
* @param BaseURI
* @throws XMLSecurityException
*/
public RSAKeyValue(Element element, String BaseURI) throws XMLSecurityException {
super(element, BaseURI);
}
/**
* Constructor RSAKeyValue
*
* @param doc
* @param modulus
* @param exponent
*/
public RSAKeyValue(Document doc, BigInteger modulus, BigInteger exponent) {
super(doc);
XMLUtils.addReturnToElement(this.constructionElement);
this.addBigIntegerElement(modulus, Constants._TAG_MODULUS);
this.addBigIntegerElement(exponent, Constants._TAG_EXPONENT);
}
/**
* Constructor RSAKeyValue
*
* @param doc
* @param key
* @throws IllegalArgumentException
*/
public RSAKeyValue(Document doc, Key key) throws IllegalArgumentException {
super(doc);
XMLUtils.addReturnToElement(this.constructionElement);
if (key instanceof java.security.interfaces.RSAPublicKey ) {
this.addBigIntegerElement(
((RSAPublicKey) key).getModulus(), Constants._TAG_MODULUS
);
this.addBigIntegerElement(
((RSAPublicKey) key).getPublicExponent(), Constants._TAG_EXPONENT
);
} else {
Object exArgs[] = { Constants._TAG_RSAKEYVALUE, key.getClass().getName() };
throw new IllegalArgumentException(I18n.translate("KeyValue.IllegalArgument", exArgs));
}
}
/** @inheritDoc */
public PublicKey getPublicKey() throws XMLSecurityException {
try {
KeyFactory rsaFactory = KeyFactory.getInstance("RSA");
RSAPublicKeySpec rsaKeyspec =
new RSAPublicKeySpec(
this.getBigIntegerFromChildElement(
Constants._TAG_MODULUS, Constants.SignatureSpecNS
),
this.getBigIntegerFromChildElement(
Constants._TAG_EXPONENT, Constants.SignatureSpecNS
)
);
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