(Element) doc.getElementsByTagNameNS(Constants.SignatureSpecNS,
Constants._TAG_SIGNATURE).item(0);
XMLSignature sign = new XMLSignature(sigElement,
"");
boolean verify =
sign.checkSignatureValue(sign.getKeyInfo().getPublicKey());
if (!verify) {
for (int i = 0; i < sign.getSignedInfo().getLength(); i++) {
boolean refVerify =
sign.getSignedInfo().getVerificationResult(i);
if (!refVerify) {