Merge pull request arduino#472 from tekka007/SigningFix

Fix sending buffer in MySigning.cpp

Author: fallberg

Diff for: libraries/MySensors/core/MySigning.cpp

@@ -106,6 +106,7 @@ static void prepareSigningPresentation(MyMessage &msg, uint8_t destination) {
 	// Only supports version 1 for now
 	build(msg, _nc.nodeId, destination, NODE_SENSOR_ID, C_INTERNAL, I_SIGNING_PRESENTATION, false).set("");
 	mSetLength(msg, 2);
+	mSetPayloadType(msg, P_CUSTOM);		// displayed as hex
 	msg.data[0] = SIGNING_PRESENTATION_VERSION_1;
 	msg.data[1] = 0;
 }
@@ -303,7 +304,7 @@ bool signerSignMsg(MyMessage &msg) {
 		} else {
 			// Send nonce-request
 			_signingNonceStatus=SIGN_WAITING_FOR_NONCE;
-			if (!_sendRoute(build(_msgTmp, _nc.nodeId, msg.destination, msg.sensor,
+			if (!_sendRoute(build(_msgSign, _nc.nodeId, msg.destination, msg.sensor,
 				C_INTERNAL, I_NONCE_REQUEST, false).set(""))) {
 				SIGN_DEBUG(PSTR("Failed to transmit nonce request!\n"));
 				return false;