KeyResolverException {
OMElement registerRequestElem = getResourceAsElement("T1_RegisterRequest-http.xml");
RegisterRequest registerRequest = (RegisterRequest) RegisterRequestBuilder.INSTANCE
.buildElement(registerRequestElem);
Authentication authentication = registerRequest.getAuthentication();
XMLSignature keyBindingAuthentication = authentication
.getKeyBindingAuthentication();
assertTrue(keyBindingAuthentication.checkSignatureValue(authKey));
PrototypeKeyBinding prototypeKeyBinding = registerRequest
.getPrototypeKeyBinding();