diff --git a/ndn-cpp/security/identity-manager.cpp b/ndn-cpp/security/identity-manager.cpp
new file mode 100644
index 0000000..8d36d30
--- /dev/null
+++ b/ndn-cpp/security/identity-manager.cpp
@@ -0,0 +1,15 @@
+/**
+ * @author: Jeff Thompson
+ * See COPYING for copyright and distribution information.
+ */
+
+#include "identity-manager.hpp"
+
+namespace ndn {
+
+void IdentityManager::signByCertificate(const Data &data, const Name &certificateName, WireFormat& wireFormat)
+{
+  
+}
+
+}