+extern const char * OIC_JSON_DPC_NAME;
+extern const char * OIC_JSON_EDP_NAME;
+extern const char * OIC_JSON_PIN_NAME;
+extern const char * OIC_JSON_PDACL_NAME;
+extern const char * OIC_JSON_PDDEV_LIST_NAME;
+extern const char * OIC_JSON_ROWNER_NAME;
+extern const char * OIC_JSON_PRM_NAME;
+extern const char * OIC_JSON_SPM_NAME;
+extern const char * OIC_JSON_PDEVICE_ID_NAME;
+extern const char * OIC_JSON_RLIST_NAME;
+extern const char * OIC_JSON_HREF_NAME;
+extern const char * OIC_JSON_REL_NAME;
+extern const char * OIC_JSON_RT_NAME;
+extern const char * OIC_JSON_IF_NAME;
+extern const char * OIC_JSON_ROWNERID_NAME;
+#ifdef MULTIPLE_OWNER
+extern const char * OIC_JSON_EOWNERID_NAME;
+#endif //MULTIPLE_OWNER
+extern const char * OIC_JSON_ENCODING_NAME;
+extern const char * OIC_JSON_DATA_NAME;
+extern const char * OIC_JSON_SEC_V_NAME;
+
+extern const char * OIC_JSON_EMPTY_STRING;
+
+// Certificates provided by Cloud
+extern const char * TRUST_CA;
+extern const char * PRIMARY_CERT;
+
+// Certificates provided by manufacturer
+extern const char * MF_TRUST_CA;
+extern const char * MF_PRIMARY_CERT;