| /** |
| * 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 org.apache.xml.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 org.apache.xml.security.exceptions.XMLSecurityException; |
| import org.apache.xml.security.utils.Constants; |
| import org.apache.xml.security.utils.I18n; |
| import org.apache.xml.security.utils.SignatureElementProxy; |
| 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); |
| |
| addReturnToSelf(); |
| 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); |
| |
| addReturnToSelf(); |
| |
| if (key instanceof 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 |
| ) |
| ); |
| PublicKey pk = rsaFactory.generatePublic(rsaKeyspec); |
| |
| return pk; |
| } catch (NoSuchAlgorithmException ex) { |
| throw new XMLSecurityException(ex); |
| } catch (InvalidKeySpecException ex) { |
| throw new XMLSecurityException(ex); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| public String getBaseLocalName() { |
| return Constants._TAG_RSAKEYVALUE; |
| } |
| } |