private Vector doEncryption(Document doc, byte[] secretKey, Vector references) throws WSSecurityException {
SecretKey key = WSSecurityUtil.prepareSecretKey(this.symEncAlgo, secretKey);
XMLCipher xmlCipher = null;
try {
xmlCipher = XMLCipher.getInstance(symEncAlgo);
} catch (XMLEncryptionException e3) {
throw new WSSecurityException(
WSSecurityException.UNSUPPORTED_ALGORITHM, null, null, e3);
}
Vector encDataRefs = new Vector();
for (int part = 0; part < references.size(); part++) {
WSEncryptionPart encPart = (WSEncryptionPart) references.get(part);
String idToEnc = encPart.getId();
String elemName = encPart.getName();
String nmSpace = encPart.getNamespace();
String modifier = encPart.getEncModifier();
/*
* Third step: get the data to encrypt.
*/
Element body = null;
if (idToEnc != null) {
body = WSSecurityUtil.findElementById(document
.getDocumentElement(), idToEnc, WSConstants.WSU_NS);
if (body == null) {
body = WSSecurityUtil.findElementById(document
.getDocumentElement(), idToEnc, null);
}
} else {
body = (Element) WSSecurityUtil.findElement(envelope, elemName,
nmSpace);
}
if (body == null) {
throw new WSSecurityException(WSSecurityException.FAILURE,
"noEncElement", new Object[] { "{" + nmSpace + "}"
+ elemName });
}
boolean content = modifier.equals("Content") ? true : false;
String xencEncryptedDataId = "EncDataId-" + body.hashCode();
/*
* Forth step: encrypt data, and set neccessary attributes in
* xenc:EncryptedData
*/
try {
//Create the SecurityTokenRef to the DKT
KeyInfo keyInfo = new KeyInfo(document);
SecurityTokenReference secToken = new SecurityTokenReference(document);
Reference ref = new Reference(document);
ref.setURI("#" + dktId);
secToken.setReference(ref);
keyInfo.addUnknownElement(secToken.getElement());
xmlCipher.init(XMLCipher.ENCRYPT_MODE, key);
EncryptedData encData = xmlCipher.getEncryptedData();
encData.setId(xencEncryptedDataId);
encData.setKeyInfo(keyInfo);
xmlCipher.doFinal(doc, body, content);
} catch (Exception e2) {
throw new WSSecurityException(
WSSecurityException.FAILED_ENC_DEC, null, null, e2);
}
encDataRefs.add(new String("#" + xencEncryptedDataId));