Implemented authentication.

Near feature complete.

U2F_Version_APDU.cpp

@@ -0,0 +1,28 @@
+#include "U2F_Version_APDU.hpp"
+#include <iostream>
+#include "U2FMessage.hpp"
+#include "u2f.hpp"
+#include "Field.hpp"
+#include "APDU.hpp"
+
+using namespace std;
+
+U2F_Version_APDU::U2F_Version_APDU(const U2F_Msg_CMD &msg)
+{
+	clog << "Got U2F_Ver APDU request" << endl;
+
+	//Don't actually respond yet
+}
+
+void U2F_Version_APDU::respond()
+{
+	char ver[]{ 'U', '2', 'F', '_', 'V', '2' };
+	U2FMessage m{};
+
+	m.cid = 0xF1D0F1D0;
+	m.cmd = U2FHID_MSG;
+	m.data.insert(m.data.end(), FIELD(ver));
+	auto sC = APDU_STATUS::SW_NO_ERROR;
+	m.data.insert(m.data.end(), FIELD_BE(sC));
+	m.write();
+}