if (currentChild.getNodeType() == Node.ELEMENT_NODE) {
for (int k = 0; k < storageLength; k++) {
StorageResolver storage =
(StorageResolver) this._storageResolvers.get(k);
SecretKey sk = keyResolver
.engineLookupAndResolveSecretKey((Element) currentChild, uri, storage);
if (sk != null) {
return sk;
}