public static void main(String unused[]) throws Exception {
org.apache.xml.security.Init.init();
DocumentBuilder db = XMLUtils.createDocumentBuilder(false);
Document doc = db.newDocument();
String directory = "data/org/apache/xml/security/c14n/outExcl/";
File signatureFile = new File(directory + "apacheSignature.xml");
XMLSignature xmlSignature = new XMLSignature(doc,
signatureFile.toURI().toURL().toString(),
XMLSignature.ALGO_ID_MAC_HMAC_SHA1);