--- /dev/null
+#ifndef _MIC_H_
+#define _MIC_H_
+
+#include "types.h"
+
+#define current_challenge (*((u16*)(_nvram+0)))
+#define mic_secret (((char*)_nvram)+2)
+
+#define mic_challenge current_challenge
+void mic_set_secret(char newsecret[16]);
+bool mic_verify(void* message);
+
+#endif /* _MIC_H_ */