List of usage examples for javax.xml.crypto.dsig XMLSignatureFactory getInstance
public static XMLSignatureFactory getInstance(String mechanismType, String provider) throws NoSuchProviderException
XMLSignatureFactory
that supports the requested XML processing mechanism and representation type (ex: "DOM"), as supplied by the specified provider. From source file:Main.java
private static XMLSignatureFactory getXMLSignatureFactory() { XMLSignatureFactory xsf = null; try {/*w w w . j a v a2s .c om*/ xsf = XMLSignatureFactory.getInstance("DOM", "ApacheXMLDSig"); } catch (NoSuchProviderException ex) { try { xsf = XMLSignatureFactory.getInstance("DOM"); } catch (Exception err) { throw new RuntimeException("could not create instance for DOM"); } } return xsf; }
From source file:it.cnr.icar.eric.common.security.wss4j.WSS4JSignatureBST.java
private void init() { // Try to install the Santuario Provider - fall back to the JDK provider if this does // not work// w w w . j a va2s. c o m try { signatureFactory = XMLSignatureFactory.getInstance("DOM", "ApacheXMLDSig"); } catch (NoSuchProviderException ex) { signatureFactory = XMLSignatureFactory.getInstance("DOM"); } try { keyInfoFactory = KeyInfoFactory.getInstance("DOM", "ApacheXMLDSig"); } catch (NoSuchProviderException ex) { keyInfoFactory = KeyInfoFactory.getInstance("DOM"); } }
From source file:be.fedict.eid.dss.document.xml.XMLDSSDocumentService.java
@Override public List<SignatureInfo> verifySignatures(byte[] documentData, byte[] originalDocument) throws Exception { Document document = this.documentBuilder.parse(new ByteArrayInputStream(documentData)); List<SignatureInfo> signatureInfos = new LinkedList<SignatureInfo>(); NodeList signatureNodeList = document.getElementsByTagNameNS(XMLSignature.XMLNS, "Signature"); if (0 == signatureNodeList.getLength()) { LOG.debug("no XML signature found"); return signatureInfos; }//www.jav a2s. c o m XAdESValidation xadesValidation = new XAdESValidation(this.context); for (int signatureNodeIdx = 0; signatureNodeIdx < signatureNodeList.getLength(); signatureNodeIdx++) { /* * Check signature. */ Element signatureElement = (Element) signatureNodeList.item(signatureNodeIdx); xadesValidation.prepareDocument(signatureElement); KeyInfoKeySelector keyInfoKeySelector = new KeyInfoKeySelector(); DOMValidateContext domValidateContext = new DOMValidateContext(keyInfoKeySelector, signatureElement); XMLSignatureFactory xmlSignatureFactory = XMLSignatureFactory.getInstance("DOM", new org.apache.jcp.xml.dsig.internal.dom.XMLDSigRI()); XMLSignature xmlSignature; try { xmlSignature = xmlSignatureFactory.unmarshalXMLSignature(domValidateContext); } catch (MarshalException e) { LOG.error("XML signature marshalling error: " + e.getMessage(), e); continue; } LOG.debug("validating signature: " + xmlSignature.getId()); boolean signatureValid = xmlSignature.validate(domValidateContext); LOG.debug("signature valid: " + signatureValid); if (!signatureValid) { LOG.error("invalid signature"); throw new RuntimeException("invalid signature"); } if (null != originalDocument) { Document originalDomDocument = XAdESUtils.loadDocument(originalDocument); LOG.debug("performing original document verification"); verifyCoSignatureReference(xmlSignature, originalDomDocument); LOG.debug("original document verified"); } else { /* * We can still check whether the co-signature ds:Reference is * indeed doing a co-signature. */ verifyCoSignatureReference(xmlSignature, document); } X509Certificate signingCertificate = keyInfoKeySelector.getCertificate(); SignatureInfo signatureInfo = xadesValidation.validate(document, xmlSignature, signatureElement, signingCertificate); signatureInfos.add(signatureInfo); } return signatureInfos; }
From source file:no.digipost.signature.client.asice.signature.CreateSignature.java
private XMLSignatureFactory getSignatureFactory() { try {//w ww . j a va2s .c o m return XMLSignatureFactory.getInstance("DOM", "XMLDSig"); } catch (NoSuchProviderException e) { throw new ConfigurationException( "Failed to find XML Digital Signature provided. The library depends on default Java-provider"); } }
From source file:es.gob.afirma.signers.ooxml.be.fedict.eid.applet.service.signer.AbstractXmlSignatureService.java
@SuppressWarnings("unchecked") private byte[] getSignedXML(final String digestAlgo, final List<DigestInfo> digestInfos, final List<X509Certificate> signingCertificateChain, final PrivateKey signingKey) throws ParserConfigurationException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, MarshalException, javax.xml.crypto.dsig.XMLSignatureException, TransformerException, IOException, SAXException {/*from w w w .j a va 2 s . c o m*/ // DOM Document construction. Document document = getEnvelopingDocument(); if (null == document) { final DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); documentBuilderFactory.setNamespaceAware(true); document = documentBuilderFactory.newDocumentBuilder().newDocument(); } final XMLSignContext xmlSignContext = new DOMSignContext(signingKey, document); final URIDereferencer uriDereferencer = getURIDereferencer(); if (null != uriDereferencer) { xmlSignContext.setURIDereferencer(uriDereferencer); } final XMLSignatureFactory signatureFactory = XMLSignatureFactory.getInstance("DOM", //$NON-NLS-1$ new org.jcp.xml.dsig.internal.dom.XMLDSigRI()); // Add ds:References that come from signing client local files. final List<Reference> references = new LinkedList<Reference>(); addDigestInfosAsReferences(digestInfos, signatureFactory, references); // Invoke the signature facets. final String signatureId = "xmldsig-" + UUID.randomUUID().toString(); //$NON-NLS-1$ final List<XMLObject> objects = new LinkedList<XMLObject>(); for (final SignatureFacet signatureFacet : this.signatureFacets) { signatureFacet.preSign(signatureFactory, document, signatureId, signingCertificateChain, references, objects); } // ds:SignedInfo final SignatureMethod signatureMethod = signatureFactory.newSignatureMethod(getSignatureMethod(digestAlgo), null); final SignedInfo signedInfo = signatureFactory.newSignedInfo(signatureFactory.newCanonicalizationMethod( getCanonicalizationMethod(), (C14NMethodParameterSpec) null), signatureMethod, references); // Creamos el KeyInfo final KeyInfoFactory kif = signatureFactory.getKeyInfoFactory(); final List<Object> x509Content = new ArrayList<Object>(); x509Content.add(signingCertificateChain.get(0)); final List<Object> content = new ArrayList<Object>(); try { content.add(kif.newKeyValue(signingCertificateChain.get(0).getPublicKey())); } catch (final Exception e) { Logger.getLogger("es.gob.afirma") //$NON-NLS-1$ .severe("Error creando el KeyInfo, la informacion puede resultar incompleta: " + e); //$NON-NLS-1$ } content.add(kif.newX509Data(x509Content)); // JSR105 ds:Signature creation final String signatureValueId = signatureId + "-signature-value"; //$NON-NLS-1$ final javax.xml.crypto.dsig.XMLSignature xmlSignature = signatureFactory.newXMLSignature(signedInfo, kif.newKeyInfo(content), // KeyInfo objects, signatureId, signatureValueId); // ds:Signature Marshalling. final DOMXMLSignature domXmlSignature = (DOMXMLSignature) xmlSignature; Node documentNode = document.getDocumentElement(); if (null == documentNode) { documentNode = document; // In case of an empty DOM document. } final String dsPrefix = null; domXmlSignature.marshal(documentNode, dsPrefix, (DOMCryptoContext) xmlSignContext); // Completion of undigested ds:References in the ds:Manifests. for (final XMLObject object : objects) { final List<XMLStructure> objectContentList = object.getContent(); for (final XMLStructure objectContent : objectContentList) { if (!(objectContent instanceof Manifest)) { continue; } final Manifest manifest = (Manifest) objectContent; final List<Reference> manifestReferences = manifest.getReferences(); for (final Reference manifestReference : manifestReferences) { if (null != manifestReference.getDigestValue()) { continue; } final DOMReference manifestDOMReference = (DOMReference) manifestReference; manifestDOMReference.digest(xmlSignContext); } } } // Completion of undigested ds:References. final List<Reference> signedInfoReferences = signedInfo.getReferences(); for (final Reference signedInfoReference : signedInfoReferences) { final DOMReference domReference = (DOMReference) signedInfoReference; if (null != domReference.getDigestValue()) { // ds:Reference with external digest value continue; } domReference.digest(xmlSignContext); } // Calculation of signature final DOMSignedInfo domSignedInfo = (DOMSignedInfo) signedInfo; final ByteArrayOutputStream dataStream = new ByteArrayOutputStream(); domSignedInfo.canonicalize(xmlSignContext, dataStream); final byte[] octets = dataStream.toByteArray(); final Signature sig = Signature.getInstance(digestAlgo.replace("-", "") + "withRSA"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ final byte[] sigBytes; try { sig.initSign(signingKey); sig.update(octets); sigBytes = sig.sign(); } catch (final Exception e) { throw new javax.xml.crypto.dsig.XMLSignatureException( "Error en la firma PKCS#1 ('" + digestAlgo + "withRSA): " + e); //$NON-NLS-1$ //$NON-NLS-2$ } // Sacamos el pre-XML a un OutputStream final ByteArrayOutputStream baos = new ByteArrayOutputStream(); writeDocument(document, baos); // Ya tenemos el XML, con la firma vacia y el SignatureValue, cada uno // por su lado... return postSign(baos.toByteArray(), signingCertificateChain, signatureId, sigBytes); }
From source file:no.difi.sdp.client.asice.signature.CreateSignature.java
private XMLSignatureFactory getSignatureFactory() { try {/*www .java 2 s . c o m*/ return XMLSignatureFactory.getInstance("DOM", "XMLDSig"); } catch (NoSuchProviderException e) { throw new KonfigurasjonException( "Fant ikke XML Digital Signature-provider. Biblioteket avhenger av default Java-provider."); } }
From source file:be.fedict.eid.applet.service.signer.AbstractXmlSignatureService.java
@SuppressWarnings("unchecked") private byte[] getXmlSignatureDigestValue(DigestAlgo digestAlgo, List<DigestInfo> digestInfos, List<X509Certificate> signingCertificateChain) throws ParserConfigurationException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, MarshalException, javax.xml.crypto.dsig.XMLSignatureException, TransformerFactoryConfigurationError, TransformerException, IOException, SAXException { /*/*w ww . ja v a2 s . co m*/ * DOM Document construction. */ Document document = getEnvelopingDocument(); if (null == document) { DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); documentBuilderFactory.setNamespaceAware(true); DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder(); document = documentBuilder.newDocument(); } /* * Signature context construction. */ Key key = new Key() { private static final long serialVersionUID = 1L; public String getAlgorithm() { return null; } public byte[] getEncoded() { return null; } public String getFormat() { return null; } }; XMLSignContext xmlSignContext = new DOMSignContext(key, document); URIDereferencer uriDereferencer = getURIDereferencer(); if (null != uriDereferencer) { xmlSignContext.setURIDereferencer(uriDereferencer); } if (null != this.signatureNamespacePrefix) { /* * OOo doesn't like ds namespaces so per default prefixing is off. */ xmlSignContext.putNamespacePrefix(javax.xml.crypto.dsig.XMLSignature.XMLNS, this.signatureNamespacePrefix); } XMLSignatureFactory signatureFactory = XMLSignatureFactory.getInstance("DOM", new org.apache.jcp.xml.dsig.internal.dom.XMLDSigRI()); /* * Add ds:References that come from signing client local files. */ List<Reference> references = new LinkedList<Reference>(); addDigestInfosAsReferences(digestInfos, signatureFactory, references); /* * Invoke the signature facets. */ String localSignatureId; if (null == this.signatureId) { localSignatureId = "xmldsig-" + UUID.randomUUID().toString(); } else { localSignatureId = this.signatureId; } List<XMLObject> objects = new LinkedList<XMLObject>(); for (SignatureFacet signatureFacet : this.signatureFacets) { LOG.debug("invoking signature facet: " + signatureFacet.getClass().getSimpleName()); signatureFacet.preSign(signatureFactory, document, localSignatureId, signingCertificateChain, references, objects); } /* * ds:SignedInfo */ SignatureMethod signatureMethod = signatureFactory.newSignatureMethod(getSignatureMethod(digestAlgo), null); CanonicalizationMethod canonicalizationMethod = signatureFactory .newCanonicalizationMethod(getCanonicalizationMethod(), (C14NMethodParameterSpec) null); SignedInfo signedInfo = signatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod, references); /* * JSR105 ds:Signature creation */ String signatureValueId = localSignatureId + "-signature-value"; javax.xml.crypto.dsig.XMLSignature xmlSignature = signatureFactory.newXMLSignature(signedInfo, null, objects, localSignatureId, signatureValueId); /* * ds:Signature Marshalling. */ DOMXMLSignature domXmlSignature = (DOMXMLSignature) xmlSignature; Node documentNode = document.getDocumentElement(); if (null == documentNode) { /* * In case of an empty DOM document. */ documentNode = document; } domXmlSignature.marshal(documentNode, this.signatureNamespacePrefix, (DOMCryptoContext) xmlSignContext); /* * Completion of undigested ds:References in the ds:Manifests. */ for (XMLObject object : objects) { LOG.debug("object java type: " + object.getClass().getName()); List<XMLStructure> objectContentList = object.getContent(); for (XMLStructure objectContent : objectContentList) { LOG.debug("object content java type: " + objectContent.getClass().getName()); if (false == objectContent instanceof Manifest) { continue; } Manifest manifest = (Manifest) objectContent; List<Reference> manifestReferences = manifest.getReferences(); for (Reference manifestReference : manifestReferences) { if (null != manifestReference.getDigestValue()) { continue; } DOMReference manifestDOMReference = (DOMReference) manifestReference; manifestDOMReference.digest(xmlSignContext); } } } /* * Completion of undigested ds:References. */ List<Reference> signedInfoReferences = signedInfo.getReferences(); for (Reference signedInfoReference : signedInfoReferences) { DOMReference domReference = (DOMReference) signedInfoReference; if (null != domReference.getDigestValue()) { // ds:Reference with external digest value continue; } domReference.digest(xmlSignContext); } /* * Store the intermediate XML signature document. */ TemporaryDataStorage temporaryDataStorage = getTemporaryDataStorage(); OutputStream tempDocumentOutputStream = temporaryDataStorage.getTempOutputStream(); writeDocument(document, tempDocumentOutputStream); temporaryDataStorage.setAttribute(SIGNATURE_ID_ATTRIBUTE, localSignatureId); /* * Calculation of XML signature digest value. */ DOMSignedInfo domSignedInfo = (DOMSignedInfo) signedInfo; ByteArrayOutputStream dataStream = new ByteArrayOutputStream(); domSignedInfo.canonicalize(xmlSignContext, dataStream); byte[] octets = dataStream.toByteArray(); /* * TODO: we could be using DigestOutputStream here to optimize memory * usage. */ MessageDigest jcaMessageDigest = MessageDigest.getInstance(digestAlgo.getAlgoId()); byte[] digestValue = jcaMessageDigest.digest(octets); return digestValue; }
From source file:eu.europa.ec.markt.dss.signature.xades.XAdESProfileBES.java
private DOMXMLSignature createEnveloped(SignatureParameters params, DOMSignContext signContext, org.w3c.dom.Document doc, String signatureId, String signatureValueId) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, JAXBException, MarshalException, XMLSignatureException { XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM", new XMLDSigRI()); signContext.setURIDereferencer(new URIDereferencer() { @Override/*from w ww.j a v a 2s. c o m*/ public Data dereference(URIReference uriReference, XMLCryptoContext context) throws URIReferenceException { final XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM", new XMLDSigRI()); Data data = fac.getURIDereferencer().dereference(uriReference, context); return data; } }); Map<String, String> xpathNamespaceMap = new HashMap<String, String>(); xpathNamespaceMap.put("ds", XMLSignature.XMLNS); List<Reference> references = new ArrayList<Reference>(); /* The first reference concern the whole document */ List<Transform> transforms = new ArrayList<Transform>(); transforms.add(fac.newTransform(CanonicalizationMethod.ENVELOPED, (TransformParameterSpec) null)); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); dbf.setNamespaceAware(true); org.w3c.dom.Document empty; try { empty = dbf.newDocumentBuilder().newDocument(); } catch (ParserConfigurationException e1) { throw new RuntimeException(e1); } Element xpathEl = empty.createElementNS(XMLSignature.XMLNS, "XPath"); xpathEl.setTextContent(""); empty.adoptNode(xpathEl); XPathFilterParameterSpec specs = new XPathFilterParameterSpec("not(ancestor-or-self::ds:Signature)"); DOMTransform t = (DOMTransform) fac.newTransform("http://www.w3.org/TR/1999/REC-xpath-19991116", specs); transforms.add(t); DigestMethod digestMethod = fac.newDigestMethod(params.getDigestAlgorithm().getXmlId(), null); Reference reference = fac.newReference("", digestMethod, transforms, null, "xml_ref_id"); references.add(reference); List<XMLObject> objects = new ArrayList<XMLObject>(); String xadesSignedPropertiesId = "xades-" + computeDeterministicId(params); QualifyingPropertiesType qualifyingProperties = createXAdESQualifyingProperties(params, xadesSignedPropertiesId, reference, MimeType.XML); qualifyingProperties.setTarget("#" + signatureId); Node marshallNode = doc.createElement("marshall-node"); JAXBContext jaxbContext = JAXBContext.newInstance(ObjectFactory.class); Marshaller marshaller = jaxbContext.createMarshaller(); marshaller.marshal(xades13ObjectFactory.createQualifyingProperties(qualifyingProperties), marshallNode); Element qualifier = (Element) marshallNode.getFirstChild(); // add XAdES ds:Object List<XMLStructure> xadesObjectContent = new LinkedList<XMLStructure>(); xadesObjectContent.add(new DOMStructure(marshallNode.getFirstChild())); XMLObject xadesObject = fac.newXMLObject(xadesObjectContent, null, null, null); objects.add(xadesObject); Reference xadesreference = fac.newReference("#" + xadesSignedPropertiesId, digestMethod, Collections.singletonList( fac.newTransform(CanonicalizationMethod.INCLUSIVE, (TransformParameterSpec) null)), XADES_TYPE, null); references.add(xadesreference); /* Signed Info */ SignatureMethod sm = fac.newSignatureMethod( params.getSignatureAlgorithm().getXMLSignatureAlgorithm(params.getDigestAlgorithm()), null); CanonicalizationMethod canonicalizationMethod = fac .newCanonicalizationMethod(CanonicalizationMethod.EXCLUSIVE, (C14NMethodParameterSpec) null); SignedInfo signedInfo = fac.newSignedInfo(canonicalizationMethod, sm, references); /* Creation of signature */ KeyInfoFactory keyFactory = KeyInfoFactory.getInstance("DOM", new XMLDSigRI()); List<Object> infos = new ArrayList<Object>(); List<X509Certificate> certs = new ArrayList<X509Certificate>(); certs.add(params.getSigningCertificate()); if (params.getCertificateChain() != null) { for (X509Certificate c : params.getCertificateChain()) { if (!c.getSubjectX500Principal().equals(params.getSigningCertificate().getSubjectX500Principal())) { certs.add(c); } } } infos.add(keyFactory.newX509Data(certs)); KeyInfo keyInfo = keyFactory.newKeyInfo(infos); DOMXMLSignature signature = (DOMXMLSignature) fac.newXMLSignature(signedInfo, keyInfo, objects, signatureId, signatureValueId); /* Marshall the signature to permit the digest. Need to be done before digesting the references. */ signature.marshal(doc.getDocumentElement(), "ds", signContext); signContext.setIdAttributeNS((Element) qualifier.getFirstChild(), null, "Id"); digestReferences(signContext, references); return signature; }
From source file:eu.europa.ec.markt.dss.validation.xades.XAdESSignature.java
@Override public boolean checkIntegrity(Document detachedDocument) { DOMValidateContext valContext = new DOMValidateContext( KeySelector.singletonKeySelector(getSigningCertificate().getPublicKey()), this.signatureElement); if (detachedDocument != null) { valContext.setURIDereferencer(new OneExternalFileURIDereferencer("detached-file", detachedDocument)); }//from w ww . ja v a 2 s . co m XMLSignatureFactory factory = XMLSignatureFactory.getInstance("DOM", new XMLDSigRI()); try { XMLSignature signature = factory.unmarshalXMLSignature(valContext); recursiveIdBrowse(valContext, signatureElement); boolean r = signature.validate(valContext); return r; } catch (MarshalException e) { throw new RuntimeException(e); } catch (XMLSignatureException e) { throw new RuntimeException(e); } }
From source file:eu.europa.ec.markt.dss.signature.xades.XAdESProfileBES.java
private DOMXMLSignature createEnveloping(SignatureParameters params, DOMSignContext signContext, org.w3c.dom.Document doc, String signatureId, String signatureValueId, Document inside) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, JAXBException, MarshalException, XMLSignatureException, ParserConfigurationException, IOException { XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM", new XMLDSigRI()); DigestMethod digestMethod = fac.newDigestMethod(params.getDigestAlgorithm().getXmlId(), null); List<XMLObject> objects = new ArrayList<XMLObject>(); List<Reference> references = new ArrayList<Reference>(); byte[] b64data = Base64.encode(IOUtils.toByteArray(inside.openStream())); List<Transform> transforms = new ArrayList<Transform>(); Map<String, String> xpathNamespaceMap = new HashMap<String, String>(); xpathNamespaceMap.put("ds", "http://www.w3.org/2000/09/xmldsig#"); Transform exclusiveTransform = fac.newTransform(CanonicalizationMethod.BASE64, (TransformParameterSpec) null); transforms.add(exclusiveTransform);/* ww w . j ava 2 s.c o m*/ /* The first reference concern the whole document */ Reference reference = fac.newReference("#signed-data-" + computeDeterministicId(params), digestMethod, transforms, null, "signed-data-ref"); references.add(reference); String xadesSignedPropertiesId = "xades-" + computeDeterministicId(params); QualifyingPropertiesType qualifyingProperties = createXAdESQualifyingProperties(params, xadesSignedPropertiesId, reference, MimeType.PLAIN); qualifyingProperties.setTarget("#" + signatureId); Node marshallNode = doc.createElement("marshall-node"); JAXBContext jaxbContext = JAXBContext.newInstance(ObjectFactory.class); Marshaller marshaller = jaxbContext.createMarshaller(); marshaller.marshal(xades13ObjectFactory.createQualifyingProperties(qualifyingProperties), marshallNode); Element qualifier = (Element) marshallNode.getFirstChild(); // add XAdES ds:Object List<XMLStructure> xadesObjectContent = new LinkedList<XMLStructure>(); xadesObjectContent.add(new DOMStructure(marshallNode.getFirstChild())); XMLObject xadesObject = fac.newXMLObject(xadesObjectContent, null, null, null); objects.add(xadesObject); List<Transform> xadesTranforms = new ArrayList<Transform>(); Transform exclusiveTransform2 = fac.newTransform(CanonicalizationMethod.INCLUSIVE, (TransformParameterSpec) null); xadesTranforms.add(exclusiveTransform2); Reference xadesreference = fac.newReference("#" + xadesSignedPropertiesId, digestMethod, xadesTranforms, XADES_TYPE, null); references.add(xadesreference); /* Signed Info */ SignatureMethod sm = fac.newSignatureMethod( params.getSignatureAlgorithm().getXMLSignatureAlgorithm(params.getDigestAlgorithm()), null); CanonicalizationMethod canonicalizationMethod = fac .newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec) null); SignedInfo signedInfo = fac.newSignedInfo(canonicalizationMethod, sm, references); /* Creation of signature */ KeyInfoFactory keyFactory = KeyInfoFactory.getInstance("DOM", new XMLDSigRI()); List<Object> infos = new ArrayList<Object>(); List<X509Certificate> certs = new ArrayList<X509Certificate>(); certs.add(params.getSigningCertificate()); if (params.getCertificateChain() != null) { for (X509Certificate c : params.getCertificateChain()) { if (!c.getSubjectX500Principal().equals(params.getSigningCertificate().getSubjectX500Principal())) { certs.add(c); } } } infos.add(keyFactory.newX509Data(certs)); KeyInfo keyInfo = keyFactory.newKeyInfo(infos); DOMXMLSignature signature = (DOMXMLSignature) fac.newXMLSignature(signedInfo, keyInfo, objects, signatureId, signatureValueId); /* Marshall the signature to permit the digest. Need to be done before digesting the references. */ doc.removeChild(doc.getDocumentElement()); signature.marshal(doc, "ds", signContext); Element dsObject = doc.createElementNS(XMLSignature.XMLNS, "Object"); dsObject.setAttribute("Id", "signed-data-" + computeDeterministicId(params)); dsObject.setTextContent(new String(b64data)); doc.getDocumentElement().appendChild(dsObject); signContext.setIdAttributeNS((Element) qualifier.getFirstChild(), null, "Id"); signContext.setIdAttributeNS(dsObject, null, "Id"); digestReferences(signContext, references); return signature; }