Examples of javax.xml.crypto.dsig.keyinfo.KeyInfoFactory

javax.xml.crypto.dsig.keyinfo.KeyInfoFactory
A factory for creating {@link KeyInfo} objects from scratch or forunmarshalling a KeyInfo object from a corresponding XML representation.
Each instance of KeyInfoFactory supports a specific XML mechanism type. To create a KeyInfoFactory, call one of the static {@link #getInstance getInstance} methods, passing in the XML mechanism type desired, for example:
KeyInfoFactory factory = KeyInfoFactory.getInstance("DOM");

The objects that this factory produces will be based on DOM and abide by the DOM interoperability requirements as defined in the DOM Mechanism Requirements section of the API overview. See the Service Providers section of the API overview for a list of standard mechanism types.
KeyInfoFactory implementations are registered and loaded using the {@link java.security.Provider} mechanism.For example, a service provider that supports the DOM mechanism would be specified in the Provider subclass as:
```
 put("KeyInfoFactory.DOM", "org.example.DOMKeyInfoFactory"); 
```
Also, the XMLStructures that are created by this factory may contain state specific to the KeyInfo and are not intended to be reusable.
An implementation MUST minimally support the default mechanism type: DOM.
Note that a caller must use the same KeyInfoFactory instance to create the XMLStructures of a particular KeyInfo object. The behavior is undefined if XMLStructures from different providers or different mechanism types are used together.
Concurrent Access
The static methods of this class are guaranteed to be thread-safe. Multiple threads may concurrently invoke the static methods defined in this class with no ill effects.
However, this is not true for the non-static methods defined by this class. Unless otherwise documented by a specific provider, threads that need to access a single KeyInfoFactory instance concurrently should synchronize amongst themselves and provide the necessary locking. Multiple threads each manipulating a different KeyInfoFactory instance need not synchronize. @author Sean Mullan @author JSR 105 Expert Group

    /**
     * Parse the KeyInfo Element to return a ReceivedKey object containing the found certificate or
     * public key.
     */
    private static ReceivedKey parseKeyInfoElement(Element keyInfoElement) throws STSException {
        KeyInfoFactory keyInfoFactory = null;
        try {
            keyInfoFactory = KeyInfoFactory.getInstance("DOM", "ApacheXMLDSig");
        } catch (NoSuchProviderException ex) {
            keyInfoFactory = KeyInfoFactory.getInstance("DOM");
        }


        try {
            KeyInfo keyInfo = 
                keyInfoFactory.unmarshalKeyInfo(new DOMStructure(keyInfoElement));
            List<?> list = keyInfo.getContent();


            for (int i = 0; i < list.size(); i++) {
                if (list.get(i) instanceof KeyValue) {
                    KeyValue keyValue = (KeyValue)list.get(i);

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         (KeyStore.PrivateKeyEntry) ks.getEntry
             (PRIVATE_KEY_ALIAS_IN_KEYSTORE, new KeyStore.PasswordProtection(KEYSTORE_PASSWORD.toCharArray()));
     X509Certificate cert = (X509Certificate) keyEntry.getCertificate();


     // Create the KeyInfo containing the X509Data.
     KeyInfoFactory kif = fac.getKeyInfoFactory();
     List<Object> x509Content = new ArrayList();
     x509Content.add(cert.getSubjectX500Principal().getName());
     x509Content.add(cert);
     X509Data xd = kif.newX509Data(x509Content);
     KeyInfo ki = kif.newKeyInfo(Collections.singletonList(xd));     
     
  // Instantiate the document to be signed.
     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
     dbf.setNamespaceAware(true);
     Document doc = dbf.newDocumentBuilder().parse

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    private KeyInfo getKeyInfo(XMLSignatureFactory signFactory,
            PrivateKeyEntry keyEntry) {


        X509Certificate cert = (X509Certificate) keyEntry.getCertificate();


        KeyInfoFactory kif = signFactory.getKeyInfoFactory();
        List<Object> x509Content = new ArrayList<Object>();
        x509Content.add(cert.getSubjectX500Principal().getName());
        x509Content.add(cert);
        X509Data xd = kif.newX509Data(x509Content);
        return kif.newKeyInfo(Collections.singletonList(xd));
    }

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    /**
     * Parse the KeyInfo Element to return a ReceivedKey object containing the found certificate or
     * public key.
     */
    private static ReceivedKey parseKeyInfoElement(Element keyInfoElement) throws STSException {
        KeyInfoFactory keyInfoFactory = null;
        try {
            keyInfoFactory = KeyInfoFactory.getInstance("DOM", "ApacheXMLDSig");
        } catch (NoSuchProviderException ex) {
            keyInfoFactory = KeyInfoFactory.getInstance("DOM");
        }


        try {
            KeyInfo keyInfo = 
                keyInfoFactory.unmarshalKeyInfo(new DOMStructure(keyInfoElement));
            List<?> list = keyInfo.getContent();


            for (int i = 0; i < list.size(); i++) {
                if (list.get(i) instanceof KeyValue) {
                    KeyValue keyValue = (KeyValue)list.get(i);

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    private KeyInfo getKeyInfo(XMLSignatureFactory signFactory,
            PrivateKeyEntry keyEntry) {


        X509Certificate cert = (X509Certificate) keyEntry.getCertificate();


        KeyInfoFactory kif = signFactory.getKeyInfoFactory();
        List<Object> x509Content = new ArrayList<Object>();
        x509Content.add(cert.getSubjectX500Principal().getName());
        x509Content.add(cert);
        X509Data xd = kif.newX509Data(x509Content);
        return kif.newKeyInfo(Collections.singletonList(xd));
    }

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        //
        // Next marshal the KeyInfo DOM element into a javax KeyInfo object and get the
        // (public key) credential
        //
        X509Certificate[] certs = null;
        KeyInfoFactory keyInfoFactory = null;
        try {
            keyInfoFactory = KeyInfoFactory.getInstance("DOM", "ApacheXMLDSig");
        } catch (NoSuchProviderException ex) {
            keyInfoFactory = KeyInfoFactory.getInstance("DOM");
        }
        XMLStructure keyInfoStructure = new DOMStructure(keyInfoElement);


        try {
            javax.xml.crypto.dsig.keyinfo.KeyInfo keyInfo = 
                keyInfoFactory.unmarshalKeyInfo(keyInfoStructure);
            List<?> list = keyInfo.getContent();


            for (int i = 0; i < list.size(); i++) {
                XMLStructure xmlStructure = (XMLStructure) list.get(i);
                if (xmlStructure instanceof KeyValue) {

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    private KeyInfo getKeyInfo(XMLSignatureFactory signFactory,
            PrivateKeyEntry keyEntry) {


        X509Certificate cert = (X509Certificate) keyEntry.getCertificate();


        KeyInfoFactory kif = signFactory.getKeyInfoFactory();
        List<Object> x509Content = new ArrayList<Object>();
        x509Content.add(cert.getSubjectX500Principal().getName());
        x509Content.add(cert);
        X509Data xd = kif.newX509Data(x509Content);
        return kif.newKeyInfo(Collections.singletonList(xd));
    }

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    }


    private static KeyInfo generateKeyInfo(Certificate[] chain, XmlSignatureAppearance sap) {
        Certificate certificate = chain[0];
        sap.setCertificate(certificate);
        KeyInfoFactory kif = new DOMKeyInfoFactory();
        // Create an X509Data containing the X.509 certificate
        X509Data x509d = kif.newX509Data(Collections.singletonList(certificate));
        // Create a KeyInfo and add the KeyValue to it
        return kif.newKeyInfo(Collections.singletonList(x509d));
    }

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        // Create a KeyInfo and add the KeyValue to it
        return kif.newKeyInfo(Collections.singletonList(x509d));
    }


    private static KeyInfo generateKeyInfo(PublicKey publicKey) throws GeneralSecurityException {
        KeyInfoFactory kif = new DOMKeyInfoFactory();
        KeyValue kv = kif.newKeyValue(publicKey);
        return kif.newKeyInfo(Collections.singletonList(kv));
    }

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        CanonicalizationMethod canonicalizationMethod = this.xmlSignatureFactory.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS, (C14NMethodParameterSpec) null);
        SignatureMethod signatureMethod = this.xmlSignatureFactory.newSignatureMethod(SignatureMethod.RSA_SHA1, null);


        this.signedInfo = this.xmlSignatureFactory.newSignedInfo(canonicalizationMethod, signatureMethod, Collections.singletonList(reference));


        KeyInfoFactory keyInfoFactory = this.xmlSignatureFactory.getKeyInfoFactory();
        KeyValue keyValue = keyInfoFactory.newKeyValue(publicKey);
        this.keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(keyValue));


        ByteArrayInputStream inputStream = new ByteArrayInputStream(currentData);


        Document document = this.documentBuilderFactory.newDocumentBuilder().parse(inputStream);
        DOMSignContext signContext = new DOMSignContext(privateKey, document.getDocumentElement());

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