Example usage for javax.xml.crypto.dsig Transform getAlgorithm

Introduction

In this page you can find the example usage for javax.xml.crypto.dsig Transform getAlgorithm.

Prototype

String getAlgorithm();

Source Link

Document

Returns the algorithm URI of this AlgorithmMethod.

Usage

From source file:org.apache.jcp.xml.dsig.internal.dom.DOMXMLSignature.java

private void digestReference(DOMReference ref, XMLSignContext signContext) throws XMLSignatureException {
    if (ref.isDigested()) {
        return;// www .  ja  va2  s .  co  m
    }
    // check dependencies
    String uri = ref.getURI();
    if (Utils.sameDocumentURI(uri)) {
        String id = Utils.parseIdFromSameDocumentURI(uri);
        if (id != null && signatureIdMap.containsKey(id)) {
            XMLStructure xs = signatureIdMap.get(id);
            if (xs instanceof DOMReference) {
                digestReference((DOMReference) xs, signContext);
            } else if (xs instanceof Manifest) {
                Manifest man = (Manifest) xs;
                List manRefs = man.getReferences();
                for (int i = 0, size = manRefs.size(); i < size; i++) {
                    digestReference((DOMReference) manRefs.get(i), signContext);
                }
            }
        }
        // if uri="" and there are XPath Transforms, there may be
        // reference dependencies in the XPath Transform - so be on
        // the safe side, and skip and do at end in the final sweep
        if (uri.length() == 0) {
            @SuppressWarnings("unchecked")
            List<Transform> transforms = ref.getTransforms();
            for (Transform transform : transforms) {
                String transformAlg = transform.getAlgorithm();
                if (transformAlg.equals(Transform.XPATH) || transformAlg.equals(Transform.XPATH2)) {
                    return;
                }
            }
        }
    }
    ref.digest(signContext);
}

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From source file:org.apache.ws.security.components.crypto.AlgorithmSuiteValidator.java

/**
 * Check the Signature Algorithms/*from  www . j  av  a 2 s.  com*/
 */
public void checkSignatureAlgorithms(XMLSignature xmlSignature) throws WSSecurityException {
    // Signature Algorithm
    String signatureMethod = xmlSignature.getSignedInfo().getSignatureMethod().getAlgorithm();
    checkSignatureMethod(signatureMethod);

    // C14n Algorithm
    String c14nMethod = xmlSignature.getSignedInfo().getCanonicalizationMethod().getAlgorithm();
    checkC14nAlgorithm(c14nMethod);

    for (Object refObject : xmlSignature.getSignedInfo().getReferences()) {
        Reference reference = (Reference) refObject;
        // Digest Algorithm
        String digestMethod = reference.getDigestMethod().getAlgorithm();
        Set<String> allowedDigestAlgorithms = algorithmSuite.getDigestAlgorithms();
        if (!allowedDigestAlgorithms.isEmpty() && !allowedDigestAlgorithms.contains(digestMethod)) {
            LOG.debug("DigestMethod " + digestMethod + " does not match required value");
            throw new WSSecurityException(WSSecurityException.INVALID_SECURITY);
        }

        // Transform Algorithms
        for (int i = 0; i < reference.getTransforms().size(); i++) {
            Transform transform = (Transform) reference.getTransforms().get(i);
            String algorithm = transform.getAlgorithm();
            Set<String> allowedTransformAlgorithms = algorithmSuite.getTransformAlgorithms();
            if (!allowedTransformAlgorithms.isEmpty() && !allowedTransformAlgorithms.contains(algorithm)) {
                LOG.debug("Transform method " + algorithm + " does not match required value");
                throw new WSSecurityException(WSSecurityException.INVALID_SECURITY);
            }
        }
    }
}

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