Examples of org.apache.ws.security.message.WSSecEncryptedKey

org.apache.ws.security.message.WSSecEncryptedKey
Builder class to build an EncryptedKey. This is especially useful in the case where the same EncryptedKey has to be used to sign and encrypt the message In such a situation this builder will add the EncryptedKey to the security header and we can use the information form the builder to provide to other builders to reference to the token

        Document doc = unsignedEnvelope.getAsDocument();
        
        WSSecHeader secHeader = new WSSecHeader();
        secHeader.insertSecurityHeader(doc);
        
        WSSecEncryptedKey encrKey = new WSSecEncryptedKey();
        encrKey.setKeyIdentifierType(WSConstants.ISSUER_SERIAL);
        encrKey.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security");
        encrKey.setKeySize(192);
        encrKey.prepare(doc, crypto);   
        
        WSSecEncrypt encrypt = new WSSecEncrypt();
        encrypt.setEncKeyId(encrKey.getId());
        encrypt.setEphemeralKey(encrKey.getEphemeralKey());
        encrypt.setSymmetricEncAlgorithm(WSConstants.TRIPLE_DES);
        encrypt.setEncryptSymmKey(false);
        encrypt.setEncryptedKeyElement(encrKey.getEncryptedKeyElement());


        WSSecSignature sign = new WSSecSignature();
        sign.setKeyIdentifierType(WSConstants.CUSTOM_SYMM_SIGNING);
        sign.setCustomTokenId(encrKey.getId());
        sign.setSecretKey(encrKey.getEphemeralKey());
        sign.setSignatureAlgorithm(SignatureMethod.HMAC_SHA1);


        Document signedDoc = sign.build(doc, crypto, secHeader);
        Document encryptedSignedDoc = encrypt.build(signedDoc, crypto, secHeader);

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        return result;
    }
    
    protected WSSecEncryptedKey getEncryptedKeyBuilder(TokenWrapper wrapper, 
                                                       Token token) throws WSSecurityException {
        WSSecEncryptedKey encrKey = new WSSecEncryptedKey();
        Crypto crypto = getEncryptionCrypto(wrapper);
        message.getExchange().put(SecurityConstants.ENCRYPT_CRYPTO, crypto);
        setKeyIdentifierType(encrKey, wrapper, token);
        setEncryptionUser(encrKey, wrapper, false, crypto);
        encrKey.setKeySize(binding.getAlgorithmSuite().getMaximumSymmetricKeyLength());
        encrKey.setKeyEncAlgo(binding.getAlgorithmSuite().getAsymmetricKeyWrap());
        
        encrKey.prepare(saaj.getSOAPPart(), crypto);
        
        return encrKey;
    }

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        return result;
    }
    
    protected WSSecEncryptedKey getEncryptedKeyBuilder(TokenWrapper wrapper, 
                                                       Token token) throws WSSecurityException {
        WSSecEncryptedKey encrKey = new WSSecEncryptedKey();
        Crypto crypto = getEncryptionCrypto(wrapper);
        message.getExchange().put(SecurityConstants.ENCRYPT_CRYPTO, crypto);
        setKeyIdentifierType(encrKey, wrapper, token);
        setEncryptionUser(encrKey, wrapper, false, crypto);
        encrKey.setKeySize(binding.getAlgorithmSuite().getMaximumSymmetricKeyLength());
        encrKey.setKeyEncAlgo(binding.getAlgorithmSuite().getAsymmetricKeyWrap());
        
        encrKey.prepare(saaj.getSOAPPart(), crypto);
        
        return encrKey;
    }

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     */
    protected SOAPEnvelope createResponse(RahasData rahasData) throws TrustException {
        MessageContext inMsgCtx = null;
        SOAPEnvelope envelope = null;
        Document doc = null;
        WSSecEncryptedKey encryptedKey = null;
        X509Certificate serviceCert = null;
        try {


            inMsgCtx = rahasData.getInMessageContext();
            envelope = TrustUtil.createSOAPEnvelope(inMsgCtx.getEnvelope().getNamespace()
                    .getNamespaceURI());
            doc = ((Element) envelope).getOwnerDocument();


            // Create EncryptedKey
            serviceCert = ipData.getRpCert();
            if (serviceCert != null) {
                Element encrKeyElem = null;
                Element keyInfoElem = null;


                encryptedKey = new WSSecEncryptedKey();
                encryptedKey.setUseThisCert(serviceCert);
                encryptedKey.setKeySize(256);
                encryptedKey.setKeyEncAlgo(WSConstants.KEYTRANSPORT_RSAOEP);
                encryptedKey.setKeyIdentifierType(WSConstants.THUMBPRINT_IDENTIFIER);
                encryptedKey.prepare(doc, null);


                encrKeyElem = encryptedKey.getEncryptedKeyElement();


                // Create KeyInfo structure - START
                keyInfoElem = doc.createElementNS(WSConstants.SIG_NS, "KeyInfo");
                ((OMElement) encrKeyElem).declareNamespace(WSConstants.SIG_NS,
                        WSConstants.SIG_PREFIX);

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            throws RampartException {


        RampartPolicyData rpd = rmd.getPolicyData();
        Document doc = rmd.getDocument();


        WSSecEncryptedKey encrKey = new WSSecEncryptedKey();


        try {
            RampartUtil.setKeyIdentifierType(rmd, encrKey, token);
            RampartUtil.setEncryptionUser(rmd, encrKey);
            encrKey.setKeySize(rpd.getAlgorithmSuite().getMaximumSymmetricKeyLength());
            encrKey.setKeyEncAlgo(rpd.getAlgorithmSuite().getAsymmetricKeyWrap());


            encrKey.prepare(
                    doc,
                    RampartUtil.getEncryptionCrypto(rpd.getRampartConfig(),
                            rmd.getCustomClassLoader()));


            return encrKey;

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     * @throws RampartException
     */
    private String setupEncryptedKey(RampartMessageData rmd, Token sigToken)
            throws RampartException {
        try {
            WSSecEncryptedKey encrKey = this.getEncryptedKeyBuilder(rmd, sigToken);
            String id = encrKey.getId();
            byte[] secret = encrKey.getEphemeralKey();
            // Create a rahas token from this info and store it so we can use
            // it in the next steps


            Date created = new Date();
            Date expires = new Date();
            // TODO make this lifetime configurable ???
            expires.setTime(System.currentTimeMillis() + 300000);
            org.apache.rahas.EncryptedKeyToken tempTok = new org.apache.rahas.EncryptedKeyToken(id,
                    (OMElement) encrKey.getEncryptedKeyElement(), created, expires);


            tempTok.setSecret(secret);


            // Set the SHA1 value of the encrypted key, this is used when the encrypted
            // key is referenced via a key identifier of type EncryptedKeySHA1
            tempTok.setSHA1(getSHA1(encrKey.getEncryptedEphemeralKey()));


            rmd.getTokenStorage().add(tempTok);


            String bstTokenId = encrKey.getBSTTokenId();
            // If direct ref is used to refer to the cert
            // then add the cert to the sec header now
            if (bstTokenId != null && bstTokenId.length() > 0) {
                RampartUtil.appendChildToSecHeader(rmd, encrKey.getBinarySecurityTokenElement());
            }


            return id;


        } catch (TrustException e) {

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                // for
                serviceCert = getServiceCert(config, crypto, data
                        .getAppliesToAddress());


                // Create the encrypted key
                WSSecEncryptedKey encrKeyBuilder = new WSSecEncryptedKey();


                // Use thumbprint id
                encrKeyBuilder
                        .setKeyIdentifierType(WSConstants.THUMBPRINT_IDENTIFIER);


                // SEt the encryption cert
                encrKeyBuilder.setUseThisCert(serviceCert);


                // set keysize
                int keysize = data.getKeysize();
                keysize = (keysize != -1) ? keysize : config.keySize;
                encrKeyBuilder.setKeySize(keysize);


                encrKeyBuilder.setEphemeralKey(TokenIssuerUtil.getSharedSecret(
                        data, config.keyComputation, keysize));


                // Set key encryption algo
                encrKeyBuilder
                        .setKeyEncAlgo(EncryptionConstants.ALGO_ID_KEYTRANSPORT_RSA15);


                // Build
                encrKeyBuilder.prepare(doc, crypto);


                // Extract the base64 encoded secret value
                byte[] tempKey = new byte[keysize / 8];
                System.arraycopy(encrKeyBuilder.getEphemeralKey(), 0, tempKey,
                        0, keysize / 8);


                data.setEphmeralKey(tempKey);


                // Extract the Encryptedkey DOM element
                encryptedKeyElem = encrKeyBuilder.getEncryptedKeyElement();
            } catch (Exception e) {
                throw new TrustException(
                        "errorInBuildingTheEncryptedKeyForPrincipal",
                        new String[] { serviceCert.getSubjectDN().getName() },
                        e);

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        return result;
    }
    
    protected WSSecEncryptedKey getEncryptedKeyBuilder(TokenWrapper wrapper, 
                                                       Token token) throws WSSecurityException {
        WSSecEncryptedKey encrKey = new WSSecEncryptedKey(wssConfig);
        Crypto crypto = getEncryptionCrypto(wrapper);
        message.getExchange().put(SecurityConstants.ENCRYPT_CRYPTO, crypto);
        setKeyIdentifierType(encrKey, wrapper, token);
        boolean alsoIncludeToken = false;
        // Find out do we also need to include the token as per the Inclusion requirement
        if (token instanceof X509Token 
            && token.getInclusion() != SPConstants.IncludeTokenType.INCLUDE_TOKEN_NEVER
            && encrKey.getKeyIdentifierType() != WSConstants.BST_DIRECT_REFERENCE) {
            alsoIncludeToken = true;
        }
        
        String encrUser = setEncryptionUser(encrKey, wrapper, false, crypto);
        
        encrKey.setSymmetricEncAlgorithm(binding.getAlgorithmSuite().getEncryption());
        encrKey.setKeyEncAlgo(binding.getAlgorithmSuite().getAsymmetricKeyWrap());
        
        encrKey.prepare(saaj.getSOAPPart(), crypto);
        
        if (alsoIncludeToken) {
            CryptoType cryptoType = new CryptoType(CryptoType.TYPE.ALIAS);
            cryptoType.setAlias(encrUser);
            X509Certificate[] certs = crypto.getX509Certificates(cryptoType);

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            docBuilderFactory.setNamespaceAware(true);
            DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
            Document doc = docBuilder.newDocument();
                  
            // Create an Encrypted Key
            WSSecEncryptedKey encrKey = new WSSecEncryptedKey();
            encrKey.setKeyIdentifierType(WSConstants.ISSUER_SERIAL);
            encrKey.setUseThisCert(certs[0]);
            encrKey.prepare(doc, null);
            ephemeralKey = encrKey.getEphemeralKey();
            Element encryptedKeyElement = encrKey.getEncryptedKeyElement();
            
            // Append the EncryptedKey to a KeyInfo element
            Element keyInfoElement = 
                doc.createElementNS(
                    WSConstants.SIG_NS, WSConstants.SIG_PREFIX + ":" + WSConstants.KEYINFO_LN

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                keyWrapAlgorithm = encryptionProperties.getKeyWrapAlgorithm();
                LOG.fine("KeyWrapAlgorithm not supported, defaulting to: " + keyWrapAlgorithm);
            }
        }
        
        WSSecEncryptedKey builder = new WSSecEncryptedKey();
        builder.setUserInfo(name);
        builder.setKeyIdentifierType(encryptionProperties.getKeyIdentifierType());
        builder.setEphemeralKey(secret);
        builder.setKeyEncAlgo(keyWrapAlgorithm);
        
        Document doc = DOMUtils.createDocument();
                                 
        builder.prepare(doc, stsProperties.getEncryptionCrypto());
        
        return builder.getEncryptedKeyElement();
    }

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