Examples with Algorithm xades4j.algorithms.Algorithm used on opensource projects

Example 6 with Algorithm

use of xades4j.algorithms.Algorithm in project xades4j by luisgoncalves.

the class SignerBES method sign.

@Override
public final XadesSignatureResult sign(SignedDataObjects signedDataObjects, Node referenceNode, SignatureAppendingStrategy appendingStrategy) throws XAdES4jException {
    if (null == referenceNode) {
        throw new NullPointerException("Reference node node cannot be null");
    }
    if (null == signedDataObjects) {
        throw new NullPointerException("References cannot be null");
    }
    if (signedDataObjects.isEmpty()) {
        throw new IllegalArgumentException("Data objects list is empty");
    }
    Document signatureDocument = DOMHelper.getOwnerDocument(referenceNode);
    // Generate unique identifiers for the Signature and the SignedProperties.
    String signatureId = String.format("xmldsig-%s", UUID.randomUUID());
    String signedPropsId = String.format("%s-signedprops", signatureId);
    // Signing certificate chain (may contain only the signing certificate).
    List<X509Certificate> signingCertificateChain = this.keyingProvider.getSigningCertificateChain();
    if (null == signingCertificateChain || signingCertificateChain.isEmpty()) {
        throw new SigningCertChainException("Signing certificate not provided");
    }
    X509Certificate signingCertificate = signingCertificateChain.get(0);
    // The XMLSignature (ds:Signature).
    XMLSignature signature = createSignature(signatureDocument, signedDataObjects.getBaseUri(), signingCertificate.getPublicKey().getAlgorithm());
    signature.setId(signatureId);
    /* References */
    // Process the data object descriptions to get the References and mappings.
    // After this call all the signed data objects References and XMLObjects
    // are added to the signature.
    Map<DataObjectDesc, Reference> referenceMappings = this.dataObjectDescsProcessor.process(signedDataObjects, signature);
    /* ds:KeyInfo */
    this.keyInfoBuilder.buildKeyInfo(signingCertificate, signature);
    /* QualifyingProperties element */
    // Create the QualifyingProperties element
    Element qualifyingPropsElem = ElementProxy.createElementForFamily(signature.getDocument(), QualifyingProperty.XADES_XMLNS, QualifyingProperty.QUALIFYING_PROPS_TAG);
    qualifyingPropsElem.setAttributeNS(null, QualifyingProperty.TARGET_ATTR, '#' + signatureId);
    qualifyingPropsElem.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:xades141", QualifyingProperty.XADESV141_XMLNS);
    // ds:Object to contain QualifyingProperties
    ObjectContainer qPropsXmlObj = new ObjectContainer(signature.getDocument());
    qPropsXmlObj.appendChild(qualifyingPropsElem);
    try {
        signature.appendObject(qPropsXmlObj);
    } catch (XMLSignatureException ex) {
        // -> xmlSignature.appendObject(xmlObj): not thrown when signing.
        throw new IllegalStateException(ex);
    }
    /* Collect the properties */
    // Get the format specific signature properties.
    Collection<SignedSignatureProperty> fsssp = new ArrayList<SignedSignatureProperty>(2);
    Collection<UnsignedSignatureProperty> fsusp = new ArrayList<UnsignedSignatureProperty>(2);
    getFormatSpecificSignatureProperties(fsssp, fsusp, signingCertificateChain);
    // Gather all the signature and data objects properties.
    QualifyingProperties qualifProps = qualifPropsProcessor.getQualifyingProperties(signedDataObjects, fsssp, fsusp);
    try {
        // The signature needs to be appended to the document from now on because
        // property data generation may need to dereference same-document data
        // object references.
        appendingStrategy.append(signature.getElement(), referenceNode);
        /* Signed properties */
        // Create the context for signed properties data objects generation.
        PropertiesDataGenerationContext propsDataGenCtx = new PropertiesDataGenerationContext(signedDataObjects.getDataObjectsDescs(), referenceMappings, signatureDocument);
        // Generate the signed properties data objects. The data objects structure
        // is verifier in the process.
        SigAndDataObjsPropertiesData signedPropsData = this.propsDataObjectsGenerator.generateSignedPropertiesData(qualifProps.getSignedProperties(), propsDataGenCtx);
        // Marshal the signed properties data to the QualifyingProperties node.
        this.signedPropsMarshaller.marshal(signedPropsData, qualifyingPropsElem);
        Element signedPropsElem = DOMHelper.getFirstChildElement(qualifyingPropsElem);
        DOMHelper.setIdAsXmlId(signedPropsElem, signedPropsId);
        // SignedProperties reference
        // XAdES 6.3.1: "In order to protect the properties with the signature,
        // a ds:Reference element MUST be added to the XMLDSIG signature (...)
        // composed in such a way that it uses the SignedProperties element (...)
        // as the input for computing its corresponding digest. Additionally,
        // (...) use the Type attribute of this particular ds:Reference element,
        // with its value set to: http://uri.etsi.org/01903#SignedProperties."
        String digestAlgUri = algorithmsProvider.getDigestAlgorithmForDataObjsReferences();
        if (StringUtils.isNullOrEmptyString(digestAlgUri)) {
            throw new NullPointerException("Digest algorithm URI not provided");
        }
        // Use same canonicalization URI as specified in the ds:CanonicalizationMethod for Signature.
        Algorithm canonAlg = this.algorithmsProvider.getCanonicalizationAlgorithmForSignature();
        try {
            CanonicalizerUtils.checkC14NAlgorithm(canonAlg);
            Transforms transforms = TransformUtils.createTransforms(canonAlg, this.algorithmsParametersMarshaller, signatureDocument);
            signature.addDocument('#' + signedPropsId, transforms, digestAlgUri, null, QualifyingProperty.SIGNED_PROPS_TYPE_URI);
        } catch (XMLSignatureException ex) {
            // shouldn't be thrown now!
            throw new UnsupportedAlgorithmException("Digest algorithm not supported in the XML Signature provider", digestAlgUri, ex);
        }
        // Apply the signature
        try {
            PrivateKey signingKey = keyingProvider.getSigningKey(signingCertificate);
            signature.sign(signingKey);
        } catch (XMLSignatureException ex) {
            throw new XAdES4jXMLSigException(ex.getMessage(), ex);
        }
        // Set the ds:SignatureValue id.
        Element sigValueElem = DOMHelper.getFirstDescendant(signature.getElement(), Constants.SignatureSpecNS, Constants._TAG_SIGNATUREVALUE);
        DOMHelper.setIdAsXmlId(sigValueElem, String.format("%s-sigvalue", signatureId));
        /* Marshal unsigned properties */
        // Generate the unsigned properties data objects. The data objects structure
        // is verifier in the process.
        propsDataGenCtx.setTargetXmlSignature(signature);
        SigAndDataObjsPropertiesData unsignedPropsData = this.propsDataObjectsGenerator.generateUnsignedPropertiesData(qualifProps.getUnsignedProperties(), propsDataGenCtx);
        // Marshal the unsigned properties to the final QualifyingProperties node.
        this.unsignedPropsMarshaller.marshal(unsignedPropsData, qualifyingPropsElem);
    } catch (XAdES4jException ex) {
        appendingStrategy.revert(signature.getElement(), referenceNode);
        throw ex;
    }
    return new XadesSignatureResult(signature, qualifProps);
}

Example 7 with Algorithm

use of xades4j.algorithms.Algorithm in project xades4j by luisgoncalves.

the class DataObjectDescTest method testWithTransform.

@Test
public void testWithTransform() throws Exception {
    System.out.println("withTransform");
    Document doc = SignatureServicesTestBase.getNewDocument();
    DataObjectDesc instance = new DataObjectDescTestImpl().withTransform(new XPathTransform("xpath")).withTransform(XPath2Filter.subtract("xpath1").intersect("xpath2")).withTransform(new GenericAlgorithm("uri", doc.createElement("param1"), doc.createElement("param2")));
    Algorithm[] transforms = instance.getTransforms().toArray(new Algorithm[0]);
    assertEquals(3, transforms.length);
    assertEquals(XPathTransform.class, transforms[0].getClass());
    assertEquals(XPath2FilterTransform.class, transforms[1].getClass());
    assertEquals(GenericAlgorithm.class, transforms[2].getClass());
}