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Sign SOAP message
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.SecureRandom;
import java.util.Collections;
import javax.xml.crypto.dsig.CanonicalizationMethod;
import javax.xml.crypto.dsig.DigestMethod;
import javax.xml.crypto.dsig.Reference;
import javax.xml.crypto.dsig.SignatureMethod;
import javax.xml.crypto.dsig.SignedInfo;
import javax.xml.crypto.dsig.XMLSignature;
import javax.xml.crypto.dsig.XMLSignatureFactory;
import javax.xml.crypto.dsig.dom.DOMSignContext;
import javax.xml.crypto.dsig.dom.DOMValidateContext;
import javax.xml.crypto.dsig.keyinfo.KeyInfo;
import javax.xml.crypto.dsig.keyinfo.KeyInfoFactory;
import javax.xml.crypto.dsig.keyinfo.KeyValue;
import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.Name;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPBodyElement;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPHeader;
import javax.xml.soap.SOAPHeaderElement;
import javax.xml.soap.SOAPMessage;
import javax.xml.soap.SOAPPart;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
public class Signing {
public static void main(String[] args) throws Exception {
SOAPMessage soapMessage = MessageFactory.newInstance().createMessage();
SOAPPart soapPart = soapMessage.getSOAPPart();
SOAPEnvelope soapEnvelope = soapPart.getEnvelope();
SOAPHeader soapHeader = soapEnvelope.getHeader();
SOAPHeaderElement headerElement = soapHeader.addHeaderElement(soapEnvelope.createName(
"Signature", "SOAP-SEC", "http://schemas.xmlsoap.org/soap/security/2000-12"));
SOAPBody soapBody = soapEnvelope.getBody();
soapBody.addAttribute(soapEnvelope.createName("id", "SOAP-SEC",
"http://schemas.xmlsoap.org/soap/security/2000-12"), "Body");
Name bodyName = soapEnvelope.createName("FooBar", "z", "http://example.com");
SOAPBodyElement gltp = soapBody.addBodyElement(bodyName);
Source source = soapPart.getContent();
Node root = null;
if (source instanceof DOMSource) {
root = ((DOMSource) source).getNode();
} else if (source instanceof SAXSource) {
InputSource inSource = ((SAXSource) source).getInputSource();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = null;
db = dbf.newDocumentBuilder();
Document doc = db.parse(inSource);
root = (Node) doc.getDocumentElement();
}
dumpDocument(root);
KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA");
kpg.initialize(1024, new SecureRandom());
KeyPair keypair = kpg.generateKeyPair();
XMLSignatureFactory sigFactory = XMLSignatureFactory.getInstance();
Reference ref = sigFactory.newReference("#Body", sigFactory.newDigestMethod(DigestMethod.SHA1,
null));
SignedInfo signedInfo = sigFactory.newSignedInfo(sigFactory.newCanonicalizationMethod(
CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS, (C14NMethodParameterSpec) null), sigFactory
.newSignatureMethod(SignatureMethod.DSA_SHA1, null), Collections.singletonList(ref));
KeyInfoFactory kif = sigFactory.getKeyInfoFactory();
KeyValue kv = kif.newKeyValue(keypair.getPublic());
KeyInfo keyInfo = kif.newKeyInfo(Collections.singletonList(kv));
XMLSignature sig = sigFactory.newXMLSignature(signedInfo, keyInfo);
System.out.println("Signing the message...");
PrivateKey privateKey = keypair.getPrivate();
Element envelope = getFirstChildElement(root);
Element header = getFirstChildElement(envelope);
DOMSignContext sigContext = new DOMSignContext(privateKey, header);
sigContext.putNamespacePrefix(XMLSignature.XMLNS, "ds");
sigContext.setIdAttributeNS(getNextSiblingElement(header),
"http://schemas.xmlsoap.org/soap/security/2000-12", "id");
sig.sign(sigContext);
dumpDocument(root);
System.out.println("Validate the signature...");
Element sigElement = getFirstChildElement(header);
DOMValidateContext valContext = new DOMValidateContext(keypair.getPublic(), sigElement);
valContext.setIdAttributeNS(getNextSiblingElement(header),
"http://schemas.xmlsoap.org/soap/security/2000-12", "id");
boolean valid = sig.validate(valContext);
System.out.println("Signature valid? " + valid);
}
private static void dumpDocument(Node root) throws TransformerException {
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.transform(new DOMSource(root), new StreamResult(System.out));
}
private static Element getFirstChildElement(Node node) {
Node child = node.getFirstChild();
while ((child != null) && (child.getNodeType() != Node.ELEMENT_NODE)) {
child = child.getNextSibling();
}
return (Element) child;
}
public static Element getNextSiblingElement(Node node) {
Node sibling = node.getNextSibling();
while ((sibling != null) && (sibling.getNodeType() != Node.ELEMENT_NODE)) {
sibling = sibling.getNextSibling();
}
return (Element) sibling;
}
}
/*
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/</codeTitle><cnTitle></cnTitle><codeKeywords></codeKeywords><codeComments></codeComments>
<SOAP-ENV:Header>
<SOAP-SEC:Signature xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12"/>
</SOAP-ENV:Header>
<SOAP-ENV:Body xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12" SOAP-SEC:id="Body</codeTitle><cnTitle></cnTitle><codeKeywords></codeKeywords><codeComments></codeComments>
<z:FooBar xmlns:z="http://example.com"/>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Signing the message...
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/</codeTitle><cnTitle></cnTitle><codeKeywords></codeKeywords><codeComments></codeComments>
<SOAP-ENV:Header>
<SOAP-SEC:Signature xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12"/>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#</codeTitle><cnTitle></cnTitle><codeKeywords></codeKeywords><codeComments></codeComments>
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments"/>
<ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#dsa-sha1"/>
<ds:Reference URI="#Body</codeTitle><cnTitle></cnTitle><codeKeywords></codeKeywords><codeComments></codeComments>
<ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<ds:DigestValue>9x0mZhajy9dHKuIXh7bm0khuC7M=</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>CiKztXFr2HnE1ul1S5OrJpiYCV46MJ9jEiDaU7AkAiCsgkTDxAhzyA==</ds:SignatureValue>
<ds:KeyInfo>
<ds:KeyValue>
<ds:DSAKeyValue>
<ds:P>/X9TgR11EilS30qcLuzk5/YRt1I870QAwx4/gLZRJmlFXUAiUftZPY1Y+r/F9bow9subVWzXgTuA
HTRv8mZgt2uZUKWkn5/oBHsQIsJPu6nX/rfGG/g7V+fGqKYVDwT7g/bTxR7DAjVUE1oWkTL2dfOu
K2HXKu/yIgMZndFIAcc=</ds:P>
<ds:Q>l2BQjxUjC8yykrmCouuEC/BYHPU=</ds:Q>
<ds:G>9+GghdabPd7LvKtcNrhXuXmUr7v6OuqC+VdMCz0HgmdRWVeOutRZT+ZxBxCBgLRJFnEj6EwoFhO3
zwkyjMim4TwWeotUfI0o4KOuHiuzpnWRbqN/C/ohNWLx+2J6ASQ7zKTxvqhRkImog9/hWuWfBpKL
Zl6Ae1UlZAFMO/7PSSo=</ds:G>
<ds:Y>j9Jsiuc8WtI3LxN+wuVUHsCJ5i22tG2SBtiRzKoWrpso/Tk62TJRN7FNsWQ0lDqIqJrQt4GqzkHx
yiRtmqm0xDsAd2ojzH1OZiGen+C8dsbAA4ydwmP1iz9UyAwevrdA/rhOAqgTUFv0ar9koh0aG/Wn
iFrXoLYt5eVzpw/swT4=</ds:Y>
</ds:DSAKeyValue>
</ds:KeyValue>
</ds:KeyInfo>
</ds:Signature>
</SOAP-ENV:Header>
<SOAP-ENV:Body xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12" SOAP-SEC:id="Body</codeTitle><cnTitle></cnTitle><codeKeywords></codeKeywords><codeComments></codeComments>
<z:FooBar xmlns:z="http://example.com"/>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Validate the signature...
Signature valid? true
*/
#Code referenced from
#Chapter 6 - Extensible Markup Language (XML)
#Java 6 Platform Revealed
#by John Zukowski
#ISBN: 1590596609
#http://www.apress.com/book/bookDisplay.html?bID=10109
