1 /* 2 * reserved comment block 3 * DO NOT REMOVE OR ALTER! 4 */ 5 /* 6 * Copyright 1999-2004 The Apache Software Foundation. 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 * 20 */ 21 package com.sun.org.apache.xml.internal.security.keys.content; 22 23 import java.security.PublicKey; 24 25 import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException; 26 import com.sun.org.apache.xml.internal.security.keys.content.keyvalues.DSAKeyValue; 27 import com.sun.org.apache.xml.internal.security.keys.content.keyvalues.RSAKeyValue; 28 import com.sun.org.apache.xml.internal.security.utils.Constants; 29 import com.sun.org.apache.xml.internal.security.utils.SignatureElementProxy; 30 import com.sun.org.apache.xml.internal.security.utils.XMLUtils; 31 import org.w3c.dom.Document; 32 import org.w3c.dom.Element; 33 34 /** 35 * The KeyValue element contains a single public key that may be useful in 36 * validating the signature. Structured formats for defining DSA (REQUIRED) 37 * and RSA (RECOMMENDED) public keys are defined in Signature Algorithms 38 * (section 6.4). The KeyValue element may include externally defined public 39 * keys values represented as PCDATA or element types from an external 40 * namespace. 41 * 42 * @author $Author: mullan $ 43 */ 44 public class KeyValue extends SignatureElementProxy implements KeyInfoContent { 45 46 /** 47 * Constructor KeyValue 48 * 49 * @param doc 50 * @param dsaKeyValue 51 */ 52 public KeyValue(Document doc, DSAKeyValue dsaKeyValue) { 53 54 super(doc); 55 56 XMLUtils.addReturnToElement(this._constructionElement); 57 this._constructionElement.appendChild(dsaKeyValue.getElement()); 58 XMLUtils.addReturnToElement(this._constructionElement); 59 } 60 61 /** 62 * Constructor KeyValue 63 * 64 * @param doc 65 * @param rsaKeyValue 66 */ 67 public KeyValue(Document doc, RSAKeyValue rsaKeyValue) { 68 69 super(doc); 70 71 XMLUtils.addReturnToElement(this._constructionElement); 72 this._constructionElement.appendChild(rsaKeyValue.getElement()); 73 XMLUtils.addReturnToElement(this._constructionElement); 74 } 75 76 /** 77 * Constructor KeyValue 78 * 79 * @param doc 80 * @param unknownKeyValue 81 */ 82 public KeyValue(Document doc, Element unknownKeyValue) { 83 84 super(doc); 85 86 XMLUtils.addReturnToElement(this._constructionElement); 87 this._constructionElement.appendChild(unknownKeyValue); 88 XMLUtils.addReturnToElement(this._constructionElement); 89 } 90 91 /** 92 * Constructor KeyValue 93 * 94 * @param doc 95 * @param pk 96 */ 97 public KeyValue(Document doc, PublicKey pk) { 98 99 super(doc); 100 101 XMLUtils.addReturnToElement(this._constructionElement); 102 103 if (pk instanceof java.security.interfaces.DSAPublicKey) { 104 DSAKeyValue dsa = new DSAKeyValue(this._doc, pk); 105 106 this._constructionElement.appendChild(dsa.getElement()); 107 XMLUtils.addReturnToElement(this._constructionElement); 108 } else if (pk instanceof java.security.interfaces.RSAPublicKey) { 109 RSAKeyValue rsa = new RSAKeyValue(this._doc, pk); 110 111 this._constructionElement.appendChild(rsa.getElement()); 112 XMLUtils.addReturnToElement(this._constructionElement); 113 } 114 } 115 116 /** 117 * Constructor KeyValue 118 * 119 * @param element 120 * @param BaseURI 121 * @throws XMLSecurityException 122 */ 123 public KeyValue(Element element, String BaseURI) 124 throws XMLSecurityException { 125 super(element, BaseURI); 126 } 127 128 /** 129 * Method getPublicKey 130 * 131 * @return the public key 132 * @throws XMLSecurityException 133 */ 134 public PublicKey getPublicKey() throws XMLSecurityException { 135 136 Element rsa = XMLUtils.selectDsNode 137 (this._constructionElement.getFirstChild(), 138 Constants._TAG_RSAKEYVALUE,0); 139 140 if (rsa != null) { 141 RSAKeyValue kv = new RSAKeyValue(rsa, this._baseURI); 142 return kv.getPublicKey(); 143 } 144 145 Element dsa = XMLUtils.selectDsNode 146 (this._constructionElement.getFirstChild(), 147 Constants._TAG_DSAKEYVALUE,0); 148 149 if (dsa != null) { 150 DSAKeyValue kv = new DSAKeyValue(dsa, this._baseURI); 151 return kv.getPublicKey(); 152 } 153 154 return null; 155 } 156 157 /** @inheritDoc */ 158 public String getBaseLocalName() { 159 return Constants._TAG_KEYVALUE; 160 } 161 }