Examples of org.apache.xml.security.keys.KeyInfo

org.apache.xml.security.keys.KeyInfo
This class stand for KeyInfo Element that may contain keys, names, certificates and other public key management information, such as in-band key distribution or key agreement data.
KeyInfo Element has two basic functions: One is KeyResolve for getting the public key in signature validation processing. the other one is toElement for getting the element in signature generation processing.
The lengthXXX() methods provide access to the internal Key objects:
- If the KeyInfo was constructed from an Element (Signature verification), the lengthXXX() methods searches for child elements of ds:KeyInfo for known types.
- If the KeyInfo was constructed from scratch (during Signature generation), the lengthXXX() methods return the number of XXX objects already passed to the KeyInfo
The addXXX() methods are used for adding Objects of the appropriate type to the KeyInfo. This is used during signature generation.
The itemXXX(int i) methods return the i'th object of the corresponding type.
The containsXXX() methods return whether the KeyInfo contains the corresponding type. @author $Author: vdkoogh $

     * @throws WSSecurityException
     */
    public Element encryptForExternalRef(Element dataRef, Vector references)
            throws WSSecurityException {


        KeyInfo keyInfo = new KeyInfo(document);
        SecurityTokenReference secToken = new SecurityTokenReference(document);
        Reference ref = new Reference(document);
        ref.setURI("#" + encKeyId);
        secToken.setReference(ref);


        keyInfo.addUnknownElement(secToken.getElement());


        Vector encDataRefs = doEncryption(document, this.symmetricKey,
                keyInfo, references);
        Element referenceList = dataRef;
        if (referenceList == null) {

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            }
            this.symmetricKey = WSSecurityUtil.prepareSecretKey(symEncAlgo,
                    embeddedKey);
        }


        KeyInfo keyInfo = null;
        if (this.keyIdentifierType == WSConstants.EMBEDDED_KEYNAME) {
            keyInfo = new KeyInfo(doc);
            keyInfo
                    .addKeyName(embeddedKeyName == null ? user
                            : embeddedKeyName);
        } else if (this.keyIdentifierType == WSConstants.EMBED_SECURITY_TOKEN_REF) {
            /*
             * This means that we want to embed a <wsse:SecurityTokenReference>
             * into keyInfo element. If we need this functionality, this.secRef
             * MUST be set before calling the build(doc, crypto) method. So if
             * secRef is null then throw an exception.
             */
            if (this.securityTokenReference == null) {
                throw new WSSecurityException(
                        WSSecurityException.SECURITY_TOKEN_UNAVAILABLE,
                        "You must set keyInfo element, if the keyIdentifier "
                                + "== EMBED_SECURITY_TOKEN_REF");
            } else {
                keyInfo = new KeyInfo(doc);
                Element tmpE = securityTokenReference.getElement();
                tmpE.setAttributeNS(WSConstants.XMLNS_NS, "xmlns:"
                        + tmpE.getPrefix(), tmpE.getNamespaceURI());
                keyInfo.addUnknownElement(securityTokenReference.getElement());
            }
        }


        SOAPConstants soapConstants = WSSecurityUtil.getSOAPConstants(envelope);
        if (parts == null) {

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        if (key == null) {
            if (log.isDebugEnabled()) {
                log.debug("Trying to find a KEK via key resolvers");
            }


            KeyInfo ki = encryptedKey.getKeyInfo();
            if (ki != null) {
                ki.setSecureValidation(secureValidation);
                try {
                    String keyWrapAlg = encryptedKey.getEncryptionMethod().getAlgorithm();
                    String keyType = JCEMapper.getJCEKeyAlgorithmFromURI(keyWrapAlg);
                    if ("RSA".equals(keyType)) {
                        key = ki.getPrivateKey();
                    } else {
                        key = ki.getSecretKey();
                    }
                }
                catch (Exception e) {
                    if (log.isDebugEnabled()) {
                        log.debug(e);

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        }


        EncryptedData encryptedData = factory.newEncryptedData(element);


        if (key == null) {
            KeyInfo ki = encryptedData.getKeyInfo();
            if (ki != null) {
                try {
                    // Add an EncryptedKey resolver
                    String encMethodAlgorithm = encryptedData.getEncryptionMethod().getAlgorithm();
                    EncryptedKeyResolver resolver = new EncryptedKeyResolver(encMethodAlgorithm, kek);
                    if (internalKeyResolvers != null) {
                        int size = internalKeyResolvers.size();
                        for (int i = 0; i < size; i++) {
                            resolver.registerInternalKeyResolver(internalKeyResolvers.get(i));
                        }
                    }
                    ki.registerInternalKeyResolver(resolver);
                    ki.setSecureValidation(secureValidation);
                    key = ki.getSecretKey();
                } catch (KeyResolverException kre) {
                    if (log.isDebugEnabled()) {
                        log.debug(kre);
                    }
                }

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        if (!engineCanResolve(element, baseURI, storage)) {
            return null;
        }


        try {
            KeyInfo referent = resolveReferentKeyInfo(element, baseURI, storage);
            if (referent != null) {
                return referent.getPublicKey();
            }
        } catch (XMLSecurityException e) {
            if (log.isDebugEnabled()) {
                log.debug("XMLSecurityException", e);
            }

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        if (!engineCanResolve(element, baseURI, storage)) {
            return null;
        }


        try {
            KeyInfo referent = resolveReferentKeyInfo(element, baseURI, storage);
            if (referent != null) {
                return referent.getX509Certificate();
            }
        } catch (XMLSecurityException e) {
            if (log.isDebugEnabled()) {
                log.debug("XMLSecurityException", e);
            }

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        if (!engineCanResolve(element, baseURI, storage)) {
            return null;
        }


        try {
            KeyInfo referent = resolveReferentKeyInfo(element, baseURI, storage);
            if (referent != null) {
                return referent.getSecretKey();
            }
        } catch (XMLSecurityException e) {
            if (log.isDebugEnabled()) {
                log.debug("XMLSecurityException", e);
            }

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        if (!engineCanResolve(element, baseURI, storage)) {
            return null;
        }


        try {
            KeyInfo referent = resolveReferentKeyInfo(element, baseURI, storage);
            if (referent != null) {
                return referent.getPrivateKey();
            }
        } catch (XMLSecurityException e) {
            if (log.isDebugEnabled()) {
                log.debug("XMLSecurityException", e);
            }

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            return null;
        }


        validateReference(referentElement);


        KeyInfo referent = new KeyInfo(referentElement, baseURI);
        referent.addStorageResolver(storage);
        return referent;
    }

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        if (!XMLUtils.elementIsInSignatureSpace(referentElement, Constants._TAG_KEYINFO)) {
            Object exArgs[] = { new QName(referentElement.getNamespaceURI(), referentElement.getLocalName()) };
            throw new XMLSecurityException("KeyInfoReferenceResolver.InvalidReferentElement.WrongType", exArgs);
        }


        KeyInfo referent = new KeyInfo(referentElement, "");
        if (referent.containsKeyInfoReference()) {
            if (secureValidation) {
                throw new XMLSecurityException("KeyInfoReferenceResolver.InvalidReferentElement.ReferenceWithSecure");
            } else {
                // Don't support chains of references at this time. If do support in the future, this is where the code
                // would go to validate that don't have a cycle, resulting in an infinite loop. This may be unrealistic

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