diff --git a/ndn-cpp/c/Key.h b/ndn-cpp/c/Key.h
new file mode 100644
index 0000000..1545a74
--- /dev/null
+++ b/ndn-cpp/c/Key.h
@@ -0,0 +1,38 @@
+/**
+ * @author: Jeff Thompson
+ * See COPYING for copyright and distribution information.
+ */
+
+#ifndef NDN_KEY_H
+#define	NDN_KEY_H
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+  ndn_KeyLocatorType_KEY = 1,
+  ndn_KeyLocatorType_CERTIFICATE = 2,
+  ndn_KeyLocatorType_KEYNAME = 3
+} ndn_KeyLocatorType;
+  
+struct ndn_KeyLocator {
+  ndn_KeyLocatorType type;
+  unsigned char *keyOrCertificate; /**< if type is ndn_KeyLocatorType_KEY, pointer to the pre-allocated buffer for the key value.
+                                        if type is ndn_KeyLocatorType_CERTIFICATE, pointer to the pre-allocated buffer for the cetrificate value. */
+  unsigned int keyOrCertificateLength;
+  // TODO: Implement keyName.
+};
+
+static inline void ndn_KeyLocator_init(struct ndn_KeyLocator *self) {
+  self->type = (ndn_KeyLocatorType)-1;
+  self->keyOrCertificate = 0;
+  self->keyOrCertificateLength = 0;
+  // TODO: Implement keyName.
+}
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif