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

Example 1 with SpnegoContextToken

use of org.apache.wss4j.policy.model.SpnegoContextToken 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 2 with SpnegoContextToken

use of org.apache.wss4j.policy.model.SpnegoContextToken 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 3 with SpnegoContextToken

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

the class SymmetricBindingHandler method doEncryption.

private WSSecBase doEncryption(AbstractTokenWrapper recToken, SecurityToken encrTok, boolean attached, List<WSEncryptionPart> encrParts, boolean atEnd) {
    // Do encryption
    if (recToken != null && recToken.getToken() != null && !encrParts.isEmpty()) {
        AbstractToken encrToken = recToken.getToken();
        assertPolicy(recToken);
        assertPolicy(encrToken);
        AlgorithmSuite algorithmSuite = sbinding.getAlgorithmSuite();
        if (encrToken.getDerivedKeys() == DerivedKeys.RequireDerivedKeys) {
            return doEncryptionDerived(recToken, encrTok, encrToken, attached, encrParts, atEnd);
        }
        try {
            WSSecEncrypt encr = new WSSecEncrypt(secHeader);
            encr.setEncryptionSerializer(new StaxSerializer());
            encr.setIdAllocator(wssConfig.getIdAllocator());
            encr.setCallbackLookup(callbackLookup);
            encr.setAttachmentCallbackHandler(new AttachmentCallbackHandler(message));
            encr.setStoreBytesInAttachment(storeBytesInAttachment);
            encr.setExpandXopInclude(isExpandXopInclude());
            encr.setWsDocInfo(wsDocInfo);
            String encrTokId = encrTok.getId();
            if (attached) {
                encrTokId = encrTok.getWsuId();
                if (encrTokId == null && (encrToken instanceof SecureConversationToken || encrToken instanceof SecurityContextToken)) {
                    encr.setEncKeyIdDirectId(true);
                    encrTokId = encrTok.getId();
                } else if (encrTokId == null) {
                    encrTokId = encrTok.getId();
                }
                if (encrTokId.startsWith("#")) {
                    encrTokId = encrTokId.substring(1);
                }
            } else {
                encr.setEncKeyIdDirectId(true);
            }
            if (encrTok.getTokenType() != null) {
                encr.setCustomReferenceValue(encrTok.getTokenType());
            }
            encr.setEncKeyId(encrTokId);
            encr.setEphemeralKey(encrTok.getSecret());
            Crypto crypto = getEncryptionCrypto();
            if (crypto != null) {
                setEncryptionUser(encr, encrToken, false, crypto);
            }
            encr.setEncryptSymmKey(false);
            encr.setSymmetricEncAlgorithm(algorithmSuite.getAlgorithmSuiteType().getEncryption());
            encr.setMGFAlgorithm(algorithmSuite.getAlgorithmSuiteType().getMGFAlgo());
            encr.setDigestAlgorithm(algorithmSuite.getAlgorithmSuiteType().getEncryptionDigest());
            if (encrToken instanceof IssuedToken || encrToken instanceof SpnegoContextToken || encrToken instanceof SecureConversationToken) {
                // Setting the AttachedReference or the UnattachedReference according to the flag
                Element ref;
                if (attached) {
                    ref = encrTok.getAttachedReference();
                } else {
                    ref = encrTok.getUnattachedReference();
                }
                String tokenType = encrTok.getTokenType();
                if (ref != null) {
                    SecurityTokenReference secRef = new SecurityTokenReference(cloneElement(ref), new BSPEnforcer());
                    encr.setSecurityTokenReference(secRef);
                } else if (WSS4JConstants.WSS_SAML_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML_NS.equals(tokenType)) {
                    encr.setCustomReferenceValue(WSS4JConstants.WSS_SAML_KI_VALUE_TYPE);
                    encr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
                } else if (WSS4JConstants.WSS_SAML2_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML2_NS.equals(tokenType)) {
                    encr.setCustomReferenceValue(WSS4JConstants.WSS_SAML2_KI_VALUE_TYPE);
                    encr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
                } else {
                    encr.setCustomReferenceValue(tokenType);
                    encr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
                }
            } else if (encrToken instanceof UsernameToken) {
                encr.setCustomReferenceValue(WSS4JConstants.WSS_USERNAME_TOKEN_VALUE_TYPE);
            } else if (encrToken instanceof KerberosToken && !isRequestor()) {
                encr.setCustomReferenceValue(WSS4JConstants.WSS_KRB_KI_VALUE_TYPE);
                encr.setEncKeyId(encrTok.getSHA1());
            } else if (!isRequestor() && encrTok.getSHA1() != null) {
                encr.setCustomReferenceValue(encrTok.getSHA1());
                encr.setKeyIdentifierType(WSConstants.ENCRYPTED_KEY_SHA1_IDENTIFIER);
            }
            encr.prepare(crypto);
            if (encr.getBSTTokenId() != null) {
                encr.prependBSTElementToHeader();
            }
            Element refList = encr.encryptForRef(null, encrParts);
            List<Element> attachments = encr.getAttachmentEncryptedDataElements();
            addAttachmentsForEncryption(atEnd, refList, attachments);
            return encr;
        } catch (WSSecurityException e) {
            LOG.log(Level.FINE, e.getMessage(), e);
            unassertPolicy(recToken, e);
        }
    }
    return null;
}

Example 4 with SpnegoContextToken

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

the class StaxSymmetricBindingHandler method doSignature.

private void doSignature(AbstractTokenWrapper wrapper, AbstractToken policyToken, 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 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().getAlgorithmSuiteType().getSymmetricSignature());
    }
}

Example 5 with SpnegoContextToken

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

the class SymmetricBindingHandler method doEncryption.

private WSSecEncrypt doEncryption(AbstractTokenWrapper recToken, SecurityToken encrTok, boolean attached, List<WSEncryptionPart> encrParts, boolean atEnd, SecretKey symmetricKey) {
    AbstractToken encrToken = recToken.getToken();
    assertPolicy(recToken);
    assertPolicy(encrToken);
    try {
        WSSecEncrypt encr = new WSSecEncrypt(secHeader);
        encr.setEncryptionSerializer(new StaxSerializer());
        encr.setIdAllocator(wssConfig.getIdAllocator());
        encr.setCallbackLookup(callbackLookup);
        encr.setAttachmentCallbackHandler(new AttachmentCallbackHandler(message));
        encr.setStoreBytesInAttachment(storeBytesInAttachment);
        encr.setExpandXopInclude(isExpandXopInclude());
        encr.setWsDocInfo(wsDocInfo);
        String encrTokId = encrTok.getId();
        if (attached) {
            encrTokId = encrTok.getWsuId();
            if (encrTokId == null && (encrToken instanceof SecureConversationToken || encrToken instanceof SecurityContextToken)) {
                encr.setEncKeyIdDirectId(true);
                encrTokId = encrTok.getId();
            } else if (encrTokId == null) {
                encrTokId = encrTok.getId();
            }
            if (encrTokId.startsWith("#")) {
                encrTokId = encrTokId.substring(1);
            }
        } else {
            encr.setEncKeyIdDirectId(true);
        }
        if (encrTok.getTokenType() != null) {
            encr.setCustomReferenceValue(encrTok.getTokenType());
        }
        encr.setEncKeyId(encrTokId);
        AlgorithmSuite algorithmSuite = sbinding.getAlgorithmSuite();
        encr.setSymmetricEncAlgorithm(algorithmSuite.getAlgorithmSuiteType().getEncryption());
        Crypto crypto = getEncryptionCrypto();
        if (crypto != null) {
            setEncryptionUser(encr, encrToken, false, crypto);
        }
        encr.setEncryptSymmKey(false);
        encr.setMGFAlgorithm(algorithmSuite.getAlgorithmSuiteType().getMGFAlgo());
        encr.setDigestAlgorithm(algorithmSuite.getAlgorithmSuiteType().getEncryptionDigest());
        if (encrToken instanceof IssuedToken || encrToken instanceof SpnegoContextToken || encrToken instanceof SecureConversationToken) {
            // Setting the AttachedReference or the UnattachedReference according to the flag
            Element ref;
            if (attached) {
                ref = encrTok.getAttachedReference();
            } else {
                ref = encrTok.getUnattachedReference();
            }
            String tokenType = encrTok.getTokenType();
            if (ref != null) {
                SecurityTokenReference secRef = new SecurityTokenReference(cloneElement(ref), new BSPEnforcer());
                encr.setSecurityTokenReference(secRef);
            } else if (WSS4JConstants.WSS_SAML_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML_NS.equals(tokenType)) {
                encr.setCustomReferenceValue(WSS4JConstants.WSS_SAML_KI_VALUE_TYPE);
                encr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
            } else if (WSS4JConstants.WSS_SAML2_TOKEN_TYPE.equals(tokenType) || WSS4JConstants.SAML2_NS.equals(tokenType)) {
                encr.setCustomReferenceValue(WSS4JConstants.WSS_SAML2_KI_VALUE_TYPE);
                encr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
            } else {
                encr.setCustomReferenceValue(tokenType);
                encr.setKeyIdentifierType(WSConstants.CUSTOM_KEY_IDENTIFIER);
            }
        } else if (encrToken instanceof UsernameToken) {
            encr.setCustomReferenceValue(WSS4JConstants.WSS_USERNAME_TOKEN_VALUE_TYPE);
        } else if (encrToken instanceof KerberosToken && !isRequestor()) {
            encr.setCustomReferenceValue(WSS4JConstants.WSS_KRB_KI_VALUE_TYPE);
            encr.setEncKeyId(encrTok.getSHA1());
        } else if (!isRequestor() && encrTok.getSHA1() != null) {
            encr.setCustomReferenceValue(encrTok.getSHA1());
            encr.setKeyIdentifierType(WSConstants.ENCRYPTED_KEY_SHA1_IDENTIFIER);
        }
        encr.prepare(crypto, symmetricKey);
        if (encr.getBSTTokenId() != null) {
            encr.prependBSTElementToHeader();
        }
        Element refList = encr.encryptForRef(null, encrParts, symmetricKey);
        List<Element> attachments = encr.getAttachmentEncryptedDataElements();
        addAttachmentsForEncryption(atEnd, refList, attachments);
        return encr;
    } catch (InvalidCanonicalizerException | WSSecurityException e) {
        LOG.log(Level.FINE, e.getMessage(), e);
        unassertPolicy(recToken, e);
    }
    return null;
}