Example usage for javax.xml.crypto.dsig XMLSignatureFactory newReference

Introduction

In this page you can find the example usage for javax.xml.crypto.dsig XMLSignatureFactory newReference.

Prototype

public abstract Reference newReference(String uri, DigestMethod dm);

Source Link

Document

Creates a Reference with the specified URI and digest method.

Usage

From source file:test.unit.be.fedict.eid.applet.service.signer.AbstractXmlSignatureServiceTest.java

@Test
public void testJsr105Signature() throws Exception {
    KeyPair keyPair = PkiTestUtils.generateKeyPair();

    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    documentBuilderFactory.setNamespaceAware(true);
    DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
    Document document = documentBuilder.newDocument();
    Element rootElement = document.createElementNS("urn:test", "tns:root");
    rootElement.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:tns", "urn:test");
    document.appendChild(rootElement);//w  ww. java 2  s  . c  o  m
    Element dataElement = document.createElementNS("urn:test", "tns:data");
    dataElement.setAttributeNS(null, "Id", "id-1234");
    dataElement.setIdAttribute("Id", true);
    dataElement.setTextContent("data to be signed");
    rootElement.appendChild(dataElement);

    XMLSignatureFactory signatureFactory = XMLSignatureFactory.getInstance("DOM", new XMLDSigRI());

    XMLSignContext signContext = new DOMSignContext(keyPair.getPrivate(), document.getDocumentElement());
    signContext.putNamespacePrefix(javax.xml.crypto.dsig.XMLSignature.XMLNS, "ds");

    DigestMethod digestMethod = signatureFactory.newDigestMethod(DigestMethod.SHA1, null);
    Reference reference = signatureFactory.newReference("#id-1234", digestMethod);
    DOMReference domReference = (DOMReference) reference;
    assertNull(domReference.getCalculatedDigestValue());
    assertNull(domReference.getDigestValue());

    SignatureMethod signatureMethod = signatureFactory.newSignatureMethod(SignatureMethod.RSA_SHA1, null);
    CanonicalizationMethod canonicalizationMethod = signatureFactory.newCanonicalizationMethod(
            CanonicalizationMethod.EXCLUSIVE_WITH_COMMENTS, (C14NMethodParameterSpec) null);
    SignedInfo signedInfo = signatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod,
            Collections.singletonList(reference));

    javax.xml.crypto.dsig.XMLSignature xmlSignature = signatureFactory.newXMLSignature(signedInfo, null);

    DOMXMLSignature domXmlSignature = (DOMXMLSignature) xmlSignature;
    domXmlSignature.marshal(document.getDocumentElement(), "ds", (DOMCryptoContext) signContext);
    domReference.digest(signContext);
    // xmlSignature.sign(signContext);
    // LOG.debug("signed document: " + toString(document));

    Element nsElement = document.createElement("ns");
    nsElement.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:ds", Constants.SignatureSpecNS);
    Node digestValueNode = XPathAPI.selectSingleNode(document, "//ds:DigestValue", nsElement);
    assertNotNull(digestValueNode);
    String digestValueTextContent = digestValueNode.getTextContent();
    LOG.debug("digest value text content: " + digestValueTextContent);
    assertFalse(digestValueTextContent.isEmpty());
}

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