--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common/selftest.h	Mon Jun 23 16:43:07 2014 +0200
@@ -0,0 +1,36 @@
+#ifndef COMMON_SELFTEST_H
+#define COMMON_SELFTEST_H
+/* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
+ * Software engineering by Intevation GmbH
+ *
+ * This file is Free Software under the GNU GPL (v>=2)
+ * and comes with ABSOLUTELY NO WARRANTY!
+ * See LICENSE.txt for details.
+ */
+
+/** @file self test against manipulation
+ *
+ * The selftest is intended to detect untargeted manipulation or
+ * corruption of the executable. Circumvention of the selftest
+ * by targeted manipulation of the binary can, of course, not
+ * be detected.
+ */
+
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/** @brief check that the current process is signed by the correct certificate
+ *
+ * Checks that the certificate is signed with a valid signature and the
+ * builtin public certificate.
+ *
+ * @returns true if the selftest is successful. false on error.
+ */
+bool selftest();
+
+#ifdef __cplusplus
+}
+#endif
+#endif // COMMON_SELFTEST_H