diff --git a/shadowlock.hpp b/shadowlock.hpp
new file mode 100644
index 0000000..dc17b5a
--- /dev/null
+++ b/shadowlock.hpp
@@ -0,0 +1,52 @@
+#pragma once
+
+#include <stdio.h>
+#include <cassert>
+#include <phosphor-logging/log.hpp>
+#include <phosphor-logging/elog.hpp>
+#include <xyz/openbmc_project/Common/error.hpp>
+#include <phosphor-logging/elog-errors.hpp>
+namespace phosphor
+{
+namespace user
+{
+namespace shadow
+{
+
+using InternalFailure = sdbusplus::xyz::openbmc_project::Common::
+                            Error::InternalFailure;
+using namespace phosphor::logging;
+
+/** @class Lock
+ *  @brief Responsible for locking and unlocking /etc/shadow
+ */
+class Lock
+{
+    public:
+        Lock(const Lock&) = delete;
+        Lock& operator=(const Lock&) = delete;
+        Lock(Lock&&) = delete;
+        Lock& operator=(Lock&&) = delete;
+
+        /** @brief Default constructor that just locks the shadow file */
+        Lock()
+        {
+            if (!lckpwdf())
+            {
+                log<level::ERR>("Locking Shadow failed");
+                elog<InternalFailure>();
+            }
+        }
+        ~Lock()
+        {
+            if(!ulckpwdf())
+            {
+                log<level::ERR>("Un-Locking Shadow failed");
+                elog<InternalFailure>();
+            }
+        }
+};
+
+} // namespace shadow
+} // namespace user
+} // namespace phosphor