Examples with AlgorithmSuiteType org.apache.wss4j.policy.model.AlgorithmSuite.AlgorithmSuiteType used on opensource projects

Example 6 with AlgorithmSuiteType

use of org.apache.wss4j.policy.model.AlgorithmSuite.AlgorithmSuiteType in project cxf by apache.

the class AlgorithmSuiteTranslater method translateAlgorithmSuites.

/**
 * Translate a list of CXF AlgorithmSuite objects into a single WSS4J AlgorithmSuite object
 */
private AlgorithmSuite translateAlgorithmSuites(List<org.apache.wss4j.policy.model.AlgorithmSuite> algorithmSuites) {
    AlgorithmSuite algorithmSuite = null;
    for (org.apache.wss4j.policy.model.AlgorithmSuite cxfAlgorithmSuite : algorithmSuites) {
        if (cxfAlgorithmSuite == null) {
            continue;
        }
        // Translate into WSS4J's AlgorithmSuite class
        if (algorithmSuite == null) {
            algorithmSuite = new AlgorithmSuite();
        }
        AlgorithmSuiteType algorithmSuiteType = cxfAlgorithmSuite.getAlgorithmSuiteType();
        if (algorithmSuiteType != null) {
            // Set asymmetric key lengths
            if (algorithmSuite.getMaximumAsymmetricKeyLength() < algorithmSuiteType.getMaximumAsymmetricKeyLength()) {
                algorithmSuite.setMaximumAsymmetricKeyLength(algorithmSuiteType.getMaximumAsymmetricKeyLength());
            }
            if (algorithmSuite.getMinimumAsymmetricKeyLength() > algorithmSuiteType.getMinimumAsymmetricKeyLength()) {
                algorithmSuite.setMinimumAsymmetricKeyLength(algorithmSuiteType.getMinimumAsymmetricKeyLength());
            }
            // Set symmetric key lengths
            if (algorithmSuite.getMaximumSymmetricKeyLength() < algorithmSuiteType.getMaximumSymmetricKeyLength()) {
                algorithmSuite.setMaximumSymmetricKeyLength(algorithmSuiteType.getMaximumSymmetricKeyLength());
            }
            if (algorithmSuite.getMinimumSymmetricKeyLength() > algorithmSuiteType.getMinimumSymmetricKeyLength()) {
                algorithmSuite.setMinimumSymmetricKeyLength(algorithmSuiteType.getMinimumSymmetricKeyLength());
            }
            algorithmSuite.addEncryptionMethod(algorithmSuiteType.getEncryption());
            algorithmSuite.addKeyWrapAlgorithm(algorithmSuiteType.getSymmetricKeyWrap());
            algorithmSuite.addKeyWrapAlgorithm(algorithmSuiteType.getAsymmetricKeyWrap());
            algorithmSuite.addDigestAlgorithm(algorithmSuiteType.getDigest());
        }
        algorithmSuite.addSignatureMethod(cxfAlgorithmSuite.getAsymmetricSignature());
        algorithmSuite.addSignatureMethod(cxfAlgorithmSuite.getSymmetricSignature());
        algorithmSuite.addC14nAlgorithm(cxfAlgorithmSuite.getC14n().getValue());
        algorithmSuite.addTransformAlgorithm(cxfAlgorithmSuite.getC14n().getValue());
        algorithmSuite.addTransformAlgorithm(SPConstants.STRT10);
        algorithmSuite.addTransformAlgorithm(WSS4JConstants.C14N_EXCL_OMIT_COMMENTS);
        algorithmSuite.addTransformAlgorithm(WSS4JConstants.NS_XMLDSIG_ENVELOPED_SIGNATURE);
        algorithmSuite.addTransformAlgorithm(WSS4JConstants.SWA_ATTACHMENT_CONTENT_SIG_TRANS);
        algorithmSuite.addTransformAlgorithm(WSS4JConstants.SWA_ATTACHMENT_COMPLETE_SIG_TRANS);
        algorithmSuite.addDerivedKeyAlgorithm(SPConstants.P_SHA1);
        algorithmSuite.addDerivedKeyAlgorithm(SPConstants.P_SHA1_L128);
    }
    return algorithmSuite;
}

Example 7 with AlgorithmSuiteType

use of org.apache.wss4j.policy.model.AlgorithmSuite.AlgorithmSuiteType in project cxf by apache.

the class StaxSymmetricBindingHandler method doSignature.

private void doSignature(AbstractTokenWrapper wrapper, AbstractToken policyToken, SecurityToken tok, List<SecurePart> sigParts) throws WSSecurityException, SOAPException {
    // Action
    WSSSecurityProperties properties = getProperties();
    WSSConstants.Action actionToPerform = XMLSecurityConstants.SIGNATURE;
    if (wrapper.getToken().getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
        actionToPerform = WSSConstants.SIGNATURE_WITH_DERIVED_KEY;
        if (MessageUtils.isRequestor(message) && policyToken instanceof X509Token) {
            properties.setDerivedKeyTokenReference(WSSConstants.DerivedKeyTokenReference.EncryptedKey);
        } else {
            properties.setDerivedKeyTokenReference(WSSConstants.DerivedKeyTokenReference.DirectReference);
        }
        AlgorithmSuiteType algSuiteType = sbinding.getAlgorithmSuite().getAlgorithmSuiteType();
        properties.setDerivedSignatureKeyLength(algSuiteType.getSignatureDerivedKeyLength() / 8);
    }
    if (policyToken.getVersion() == SPConstants.SPVersion.SP12) {
        properties.setUse200512Namespace(true);
    }
    List<WSSConstants.Action> actionList = properties.getActions();
    // Add a Signature directly before Kerberos, otherwise just append it
    boolean actionAdded = false;
    for (int i = 0; i < actionList.size(); i++) {
        WSSConstants.Action action = actionList.get(i);
        if (action.equals(WSSConstants.KERBEROS_TOKEN)) {
            actionList.add(i, actionToPerform);
            actionAdded = true;
            break;
        }
    }
    if (!actionAdded) {
        actionList.add(actionToPerform);
    }
    properties.getSignatureSecureParts().addAll(sigParts);
    AbstractToken sigToken = wrapper.getToken();
    if (sbinding.isProtectTokens() && sigToken instanceof X509Token && isRequestor()) {
        SecurePart securePart = new SecurePart(new QName(XMLSecurityConstants.NS_XMLENC, "EncryptedKey"), Modifier.Element);
        properties.addSignaturePart(securePart);
    }
    configureSignature(sigToken, false);
    if (policyToken instanceof X509Token) {
        properties.setIncludeSignatureToken(false);
        if (isRequestor()) {
            properties.setSignatureKeyIdentifier(WSSecurityTokenConstants.KeyIdentifier_EncryptedKey);
        } else {
            properties.setSignatureKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_ENCRYPTED_KEY_SHA1_IDENTIFIER);
            if (wrapper.getToken().getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
                properties.setDerivedKeyKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_ENCRYPTED_KEY_SHA1_IDENTIFIER);
                properties.setSignatureKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
            }
        }
    } else if (policyToken instanceof KerberosToken) {
        if (isRequestor()) {
            properties.setDerivedKeyKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
        } else {
            if (wrapper.getToken().getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
                properties.setSignatureKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
            } else {
                properties.setSignatureKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_KERBEROS_SHA1_IDENTIFIER);
            }
            properties.setDerivedKeyKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_KERBEROS_SHA1_IDENTIFIER);
        }
    } else if (policyToken instanceof IssuedToken || policyToken instanceof SecurityContextToken || policyToken instanceof SecureConversationToken || policyToken instanceof SpnegoContextToken) {
        if (!isRequestor()) {
            properties.setIncludeSignatureToken(false);
        } else {
            properties.setIncludeSignatureToken(true);
        }
        properties.setDerivedKeyKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
    }
    if (sigToken.getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
        properties.setSignatureAlgorithm(sbinding.getAlgorithmSuite().getSymmetricSignature());
    }
}

Example 8 with AlgorithmSuiteType

use of org.apache.wss4j.policy.model.AlgorithmSuite.AlgorithmSuiteType in project cxf by apache.

the class StaxSymmetricBindingHandler method doEncryption.

private void doEncryption(AbstractTokenWrapper recToken, List<SecurePart> encrParts, boolean externalRef) throws SOAPException {
    // Do encryption
    if (recToken != null && recToken.getToken() != null) {
        AbstractToken encrToken = recToken.getToken();
        AlgorithmSuite algorithmSuite = sbinding.getAlgorithmSuite();
        // Action
        WSSSecurityProperties properties = getProperties();
        WSSConstants.Action actionToPerform = XMLSecurityConstants.ENCRYPT;
        if (recToken.getToken().getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
            actionToPerform = WSSConstants.ENCRYPT_WITH_DERIVED_KEY;
            if (MessageUtils.isRequestor(message) && recToken.getToken() instanceof X509Token) {
                properties.setDerivedKeyTokenReference(WSSConstants.DerivedKeyTokenReference.EncryptedKey);
            } else {
                properties.setDerivedKeyTokenReference(WSSConstants.DerivedKeyTokenReference.DirectReference);
            }
            AlgorithmSuiteType algSuiteType = sbinding.getAlgorithmSuite().getAlgorithmSuiteType();
            properties.setDerivedEncryptionKeyLength(algSuiteType.getEncryptionDerivedKeyLength() / 8);
        }
        if (recToken.getVersion() == SPConstants.SPVersion.SP12) {
            properties.setUse200512Namespace(true);
        }
        properties.getEncryptionSecureParts().addAll(encrParts);
        properties.addAction(actionToPerform);
        if (isRequestor()) {
            properties.setEncryptionKeyIdentifier(getKeyIdentifierType(encrToken));
            properties.setDerivedKeyKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
        } else if (recToken.getToken() instanceof KerberosToken && !isRequestor()) {
            properties.setEncryptionKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_KERBEROS_SHA1_IDENTIFIER);
            properties.setDerivedKeyKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_KERBEROS_SHA1_IDENTIFIER);
            if (recToken.getToken().getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
                properties.setEncryptionKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
            }
        } else if ((recToken.getToken() instanceof IssuedToken || recToken.getToken() instanceof SecureConversationToken || recToken.getToken() instanceof SpnegoContextToken) && !isRequestor()) {
            properties.setEncryptionKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
        } else {
            properties.setEncryptionKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_ENCRYPTED_KEY_SHA1_IDENTIFIER);
            if (recToken.getToken().getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
                properties.setDerivedKeyKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_ENCRYPTED_KEY_SHA1_IDENTIFIER);
                properties.setEncryptionKeyIdentifier(WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE);
                properties.setEncryptSymmetricEncryptionKey(false);
            }
        }
        // Find out do we also need to include the token as per the Inclusion requirement
        WSSecurityTokenConstants.KeyIdentifier keyIdentifier = properties.getEncryptionKeyIdentifier();
        if (encrToken instanceof X509Token && isTokenRequired(encrToken.getIncludeTokenType()) && (WSSecurityTokenConstants.KeyIdentifier_IssuerSerial.equals(keyIdentifier) || WSSecurityTokenConstants.KEYIDENTIFIER_THUMBPRINT_IDENTIFIER.equals(keyIdentifier) || WSSecurityTokenConstants.KEYIDENTIFIER_SECURITY_TOKEN_DIRECT_REFERENCE.equals(keyIdentifier))) {
            properties.setIncludeEncryptionToken(true);
        } else {
            properties.setIncludeEncryptionToken(false);
        }
        properties.setEncryptionKeyTransportAlgorithm(algorithmSuite.getAlgorithmSuiteType().getAsymmetricKeyWrap());
        properties.setEncryptionSymAlgorithm(algorithmSuite.getAlgorithmSuiteType().getEncryption());
        properties.setEncryptionKeyTransportDigestAlgorithm(algorithmSuite.getAlgorithmSuiteType().getEncryptionDigest());
        properties.setEncryptionKeyTransportMGFAlgorithm(algorithmSuite.getAlgorithmSuiteType().getMGFAlgo());
        String encUser = (String) SecurityUtils.getSecurityPropertyValue(SecurityConstants.ENCRYPT_USERNAME, message);
        if (encUser == null) {
            encUser = (String) SecurityUtils.getSecurityPropertyValue(SecurityConstants.USERNAME, message);
        }
        if (encUser != null && properties.getEncryptionUser() == null) {
            properties.setEncryptionUser(encUser);
        }
        if (ConfigurationConstants.USE_REQ_SIG_CERT.equals(encUser)) {
            properties.setUseReqSigCertForEncryption(true);
        }
        if (encrToken instanceof KerberosToken || encrToken instanceof IssuedToken || encrToken instanceof SpnegoContextToken || encrToken instanceof SecurityContextToken || encrToken instanceof SecureConversationToken) {
            properties.setEncryptSymmetricEncryptionKey(false);
        }
    }
}

Example 9 with AlgorithmSuiteType

use of org.apache.wss4j.policy.model.AlgorithmSuite.AlgorithmSuiteType in project cxf by apache.

the class SymmetricBindingHandler method doSignatureDK.

private byte[] doSignatureDK(List<WSEncryptionPart> sigs, AbstractTokenWrapper policyAbstractTokenWrapper, AbstractToken policyToken, SecurityToken tok, boolean included) throws WSSecurityException {
    Document doc = saaj.getSOAPPart();
    WSSecDKSign dkSign = new WSSecDKSign(secHeader);
    dkSign.setIdAllocator(wssConfig.getIdAllocator());
    dkSign.setCallbackLookup(callbackLookup);
    dkSign.setAttachmentCallbackHandler(new AttachmentCallbackHandler(message));
    dkSign.setStoreBytesInAttachment(storeBytesInAttachment);
    dkSign.setExpandXopInclude(isExpandXopInclude());
    dkSign.setWsDocInfo(wsDocInfo);
    if (policyAbstractTokenWrapper.getToken().getVersion() == SPConstants.SPVersion.SP11) {
        dkSign.setWscVersion(ConversationConstants.VERSION_05_02);
    }
    // Check for whether the token is attached in the message or not
    boolean attached = false;
    if (isTokenRequired(policyToken.getIncludeTokenType())) {
        attached = true;
    }
    // Setting the AttachedReference or the UnattachedReference according to the flag
    Element ref;
    if (attached) {
        ref = tok.getAttachedReference();
    } else {
        ref = tok.getUnattachedReference();
    }
    if (ref != null) {
        dkSign.setExternalKey(tok.getSecret(), cloneElement(ref));
    } else if (!isRequestor() && policyToken.getDerivedKeys() == DerivedKeys.RequireDerivedKeys && tok.getSHA1() != null) {
        // If the Encrypted key used to create the derived key is not
        // attached use key identifier as defined in WSS1.1 section
        // 7.7 Encrypted Key reference
        SecurityTokenReference tokenRef = new SecurityTokenReference(doc);
        if (tok.getSHA1() != null) {
            String tokenType = tok.getTokenType();
            if (policyToken instanceof KerberosToken) {
                tokenRef.setKeyIdentifier(WSS4JConstants.WSS_KRB_KI_VALUE_TYPE, tok.getSHA1(), true);
                if (tokenType == null) {
                    tokenType = WSS4JConstants.WSS_GSS_KRB_V5_AP_REQ;
                }
            } else {
                tokenRef.setKeyIdentifierEncKeySHA1(tok.getSHA1());
                if (tokenType == null) {
                    tokenType = WSS4JConstants.WSS_ENC_KEY_VALUE_TYPE;
                }
            }
            tokenRef.addTokenType(tokenType);
        }
        dkSign.setExternalKey(tok.getSecret(), tokenRef.getElement());
    } else {
        if ((!attached && !isRequestor()) || policyToken instanceof SecureConversationToken || policyToken instanceof SecurityContextToken) {
            dkSign.setTokenIdDirectId(true);
        }
        dkSign.setExternalKey(tok.getSecret(), tok.getId());
    }
    // Set the algo info
    dkSign.setSignatureAlgorithm(sbinding.getAlgorithmSuite().getSymmetricSignature());
    dkSign.setSigCanonicalization(sbinding.getAlgorithmSuite().getC14n().getValue());
    AlgorithmSuiteType algType = sbinding.getAlgorithmSuite().getAlgorithmSuiteType();
    dkSign.setDigestAlgorithm(algType.getDigest());
    dkSign.setDerivedKeyLength(algType.getSignatureDerivedKeyLength() / 8);
    boolean includePrefixes = MessageUtils.getContextualBoolean(message, SecurityConstants.ADD_INCLUSIVE_PREFIXES, true);
    dkSign.setAddInclusivePrefixes(includePrefixes);
    if (tok.getSHA1() != null) {
        // Set the value type of the reference
        String tokenType = tok.getTokenType();
        if (tokenType == null) {
            tokenType = WSS4JConstants.WSS_ENC_KEY_VALUE_TYPE;
        }
        dkSign.setCustomValueType(tokenType);
    } else {
        String tokenType = tok.getTokenType();
        if (WSS4JConstants.WSS_SAML_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML_NS.equals(tokenType)) {
            dkSign.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
            dkSign.setCustomValueType(WSS4JConstants.WSS_SAML_KI_VALUE_TYPE);
        } else if (WSS4JConstants.WSS_SAML2_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML2_NS.equals(tokenType)) {
            dkSign.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
            dkSign.setCustomValueType(WSS4JConstants.WSS_SAML2_KI_VALUE_TYPE);
        } else if (policyToken instanceof UsernameToken) {
            dkSign.setCustomValueType(WSS4JConstants.WSS_USERNAME_TOKEN_VALUE_TYPE);
        } else {
            dkSign.setCustomValueType(tokenType);
        }
    }
    dkSign.prepare();
    if (sbinding.isProtectTokens()) {
        String sigTokId = tok.getId();
        if (included) {
            sigTokId = tok.getWsuId();
            if (sigTokId == null) {
                sigTokId = tok.getId();
            }
            if (sigTokId.startsWith("#")) {
                sigTokId = sigTokId.substring(1);
            }
        }
        sigs.add(new WSEncryptionPart(sigTokId));
        assertPolicy(new QName(sbinding.getName().getNamespaceURI(), SPConstants.PROTECT_TOKENS));
    }
    dkSign.getParts().addAll(sigs);
    List<Reference> referenceList = dkSign.addReferencesToSign(sigs);
    if (!referenceList.isEmpty()) {
        // Add elements to header
        Element el = dkSign.getdktElement();
        addDerivedKeyElement(el);
        // Do signature
        if (bottomUpElement == null) {
            dkSign.computeSignature(referenceList, false, null);
        } else {
            dkSign.computeSignature(referenceList, true, bottomUpElement);
        }
        bottomUpElement = dkSign.getSignatureElement();
        this.mainSigId = dkSign.getSignatureId();
        return dkSign.getSignatureValue();
    }
    return null;
}

Example 10 with AlgorithmSuiteType

use of org.apache.wss4j.policy.model.AlgorithmSuite.AlgorithmSuiteType in project cxf by apache.

the class SymmetricBindingHandler method doEncryptionDerived.

private WSSecBase doEncryptionDerived(AbstractTokenWrapper recToken, SecurityToken encrTok, AbstractToken encrToken, boolean attached, List<WSEncryptionPart> encrParts, boolean atEnd) {
    try {
        WSSecDKEncrypt dkEncr = new WSSecDKEncrypt(secHeader);
        dkEncr.setEncryptionSerializer(new StaxSerializer());
        dkEncr.setIdAllocator(wssConfig.getIdAllocator());
        dkEncr.setCallbackLookup(callbackLookup);
        dkEncr.setAttachmentCallbackHandler(new AttachmentCallbackHandler(message));
        dkEncr.setStoreBytesInAttachment(storeBytesInAttachment);
        dkEncr.setExpandXopInclude(isExpandXopInclude());
        dkEncr.setWsDocInfo(wsDocInfo);
        if (recToken.getToken().getVersion() == SPConstants.SPVersion.SP11) {
            dkEncr.setWscVersion(ConversationConstants.VERSION_05_02);
        }
        if (attached && encrTok.getAttachedReference() != null) {
            dkEncr.setExternalKey(encrTok.getSecret(), cloneElement(encrTok.getAttachedReference()));
        } else if (encrTok.getUnattachedReference() != null) {
            dkEncr.setExternalKey(encrTok.getSecret(), cloneElement(encrTok.getUnattachedReference()));
        } else if (!isRequestor() && encrTok.getSHA1() != null) {
            // If the Encrypted key used to create the derived key is not
            // attached use key identifier as defined in WSS1.1 section
            // 7.7 Encrypted Key reference
            SecurityTokenReference tokenRef = new SecurityTokenReference(saaj.getSOAPPart());
            String tokenType = encrTok.getTokenType();
            if (encrToken instanceof KerberosToken) {
                tokenRef.setKeyIdentifier(WSS4JConstants.WSS_KRB_KI_VALUE_TYPE, encrTok.getSHA1(), true);
                if (tokenType == null) {
                    tokenType = WSS4JConstants.WSS_GSS_KRB_V5_AP_REQ;
                }
            } else {
                tokenRef.setKeyIdentifierEncKeySHA1(encrTok.getSHA1());
                if (tokenType == null) {
                    tokenType = WSS4JConstants.WSS_ENC_KEY_VALUE_TYPE;
                }
            }
            tokenRef.addTokenType(tokenType);
            dkEncr.setExternalKey(encrTok.getSecret(), tokenRef.getElement());
        } else {
            if (attached) {
                String id = encrTok.getWsuId();
                if (id == null && (encrToken instanceof SecureConversationToken || encrToken instanceof SecurityContextToken)) {
                    dkEncr.setTokenIdDirectId(true);
                    id = encrTok.getId();
                } else if (id == null) {
                    id = encrTok.getId();
                }
                if (id.startsWith("#")) {
                    id = id.substring(1);
                }
                dkEncr.setExternalKey(encrTok.getSecret(), id);
            } else {
                dkEncr.setTokenIdDirectId(true);
                dkEncr.setExternalKey(encrTok.getSecret(), encrTok.getId());
            }
        }
        if (encrTok.getSHA1() != null) {
            String tokenType = encrTok.getTokenType();
            if (tokenType == null) {
                tokenType = WSS4JConstants.WSS_ENC_KEY_VALUE_TYPE;
            }
            dkEncr.setCustomValueType(tokenType);
        } else {
            String tokenType = encrTok.getTokenType();
            if (WSS4JConstants.WSS_SAML_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML_NS.equals(tokenType)) {
                dkEncr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
                dkEncr.setCustomValueType(WSS4JConstants.WSS_SAML_KI_VALUE_TYPE);
            } else if (WSS4JConstants.WSS_SAML2_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML2_NS.equals(tokenType)) {
                dkEncr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
                dkEncr.setCustomValueType(WSS4JConstants.WSS_SAML2_KI_VALUE_TYPE);
            } else if (encrToken instanceof UsernameToken) {
                dkEncr.setCustomValueType(WSS4JConstants.WSS_USERNAME_TOKEN_VALUE_TYPE);
            } else {
                dkEncr.setCustomValueType(tokenType);
            }
        }
        AlgorithmSuiteType algType = sbinding.getAlgorithmSuite().getAlgorithmSuiteType();
        dkEncr.setSymmetricEncAlgorithm(algType.getEncryption());
        dkEncr.setDerivedKeyLength(algType.getEncryptionDerivedKeyLength() / 8);
        dkEncr.prepare();
        Element encrDKTokenElem = null;
        encrDKTokenElem = dkEncr.getdktElement();
        addDerivedKeyElement(encrDKTokenElem);
        Element refList = dkEncr.encryptForExternalRef(null, encrParts);
        List<Element> attachments = dkEncr.getAttachmentEncryptedDataElements();
        addAttachmentsForEncryption(atEnd, refList, attachments);
        return dkEncr;
    } catch (Exception e) {
        LOG.log(Level.FINE, e.getMessage(), e);
        unassertPolicy(recToken, e);
    }
    return null;
}