diff --git a/extensions/openpower-pels/temporary_file.cpp b/extensions/openpower-pels/temporary_file.cpp
new file mode 100644
index 0000000..5c52ccc
--- /dev/null
+++ b/extensions/openpower-pels/temporary_file.cpp
@@ -0,0 +1,79 @@
+#include "temporary_file.hpp"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <stdexcept>
+
+namespace openpower
+{
+namespace pels
+{
+namespace util
+{
+
+TemporaryFile::TemporaryFile(const char* data, const uint32_t len)
+{
+    // Build template path required by mkstemp()
+    std::string templatePath =
+        fs::temp_directory_path() / "phosphor-logging-XXXXXX";
+
+    // Generate unique file name, create file, and open it.  The XXXXXX
+    // characters are replaced by mkstemp() to make the file name unique.
+    fd = mkostemp(templatePath.data(), O_RDWR);
+    if (fd == -1)
+    {
+        throw std::runtime_error{
+            std::string{"Unable to create temporary file: "} + strerror(errno)};
+    }
+
+    // Update file with input Buffer data
+    auto rc = write(fd, data, len);
+    if (rc == -1)
+    {
+        // Delete temporary file.  The destructor won't be called because the
+        // exception below causes this constructor to exit without completing.
+        remove();
+        throw std::runtime_error{std::string{"Unable to update file: "} +
+                                 strerror(errno)};
+    }
+
+    // Store path to temporary file
+    path = templatePath;
+}
+
+TemporaryFile& TemporaryFile::operator=(TemporaryFile&& file)
+{
+    // Verify not assigning object to itself (a = std::move(a))
+    if (this != &file)
+    {
+        // Delete temporary file owned by this object
+        remove();
+
+        // Move temporary file path from other object, transferring ownership
+        path = std::move(file.path);
+
+        // Clear path in other object; after move path is in unspecified state
+        file.path.clear();
+    }
+    return *this;
+}
+
+void TemporaryFile::remove()
+{
+    if (!path.empty())
+    {
+        // Delete temporary file from file system
+        fs::remove(path);
+
+        // Clear path to indicate file has been deleted
+        path.clear();
+    }
+}
+
+} // namespace util
+} // namespace pels
+} // namespace openpower