WSSignEnvelope builder = new WSSignEnvelope();
builder.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security");
// builder.setUserInfo("john", "keypass");
log.info("Before Signing....");
Document doc = unsignedEnvelope.getAsDocument();
Document signedDoc = builder.build(doc, crypto);
/*
* convert the resulting document into a message first. The toSOAPMessage()
* mehtod performs the necessary c14n call to properly set up the signed
* document and convert it into a SOAP message. After that we extract it