diff --git a/include/ntfs/security.h b/include/ntfs/security.h
index e69de29b..7a7d7458 100644
--- a/include/ntfs/security.h
+++ b/include/ntfs/security.h
@@ -0,0 +1,36 @@
+/*
+ * security.h - Exports for handling security/ACLs in NTFS.  Part of the
+ *		Linux-NTFS project.
+ *
+ * Copyright (c) 2004 Anton Altaparmakov
+ *
+ * This program/include file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program/include file is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS
+ * distribution in the file COPYING); if not, write to the Free Software
+ * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _NTFS_SECURITY_H
+#define _NTFS_SECURITY_H
+
+#include "types.h"
+#include "layout.h"
+
+extern const GUID *const zero_guid;
+
+extern BOOL ntfs_guid_is_zero(const GUID *guid);
+extern char *ntfs_guid_to_mbs(const GUID *guid, char *guid_str);
+
+extern char *ntfs_sid_to_mbs(const SID *sid, char *sid_str);
+
+#endif /* defined _NTFS_SECURITY_H */