+/** Cloud CRL */
+#define OC_RSRVD_PROV_CRL_URL "/oic/credprov/crl"
+
+#define OC_RSRVD_LAST_UPDATE "lu"
+
+#define OC_RSRVD_THIS_UPDATE "tu"
+
+#define OC_RSRVD_NEXT_UPDATE "nu"
+
+#define OC_RSRVD_SERIAL_NUMBERS "rcsn"
+
+#define OC_RSRVD_CRL "crl"
+
+#define OC_RSRVD_CRL_ID "crlid"
+
+/** Cloud ACL */
+#define OC_RSRVD_GROUP_URL "/oic/group"
+
+#define OC_RSRVD_ACL_GROUP_URL "/oic/acl/group"
+
+#define OC_RSRVD_ACL_INVITE_URL "/oic/acl/invite"
+
+#define OC_RSRVD_ACL_VERIFY_URL "/oic/acl/verify"
+
+#define OC_RSRVD_ACL_ID_URL "/oic/acl/id"
+
+#define OC_RSRVD_MEMBER_ID "mid"
+
+#define OC_RSRVD_GROUP_ID "gid"
+
+#define OC_RSRVD_OWNER_ID "oid"
+
+#define OC_RSRVD_ACL_ID "aclid"
+
+#define OC_RSRVD_ACE_ID "aceid"
+
+#define OC_RSRVD_DEVICE_ID "di"
+
+#define OC_RSRVD_SUBJECT_ID "sid"
+
+#define OC_RSRVD_REQUEST_METHOD "rm"
+
+#define OC_RSRVD_REQUEST_URI "uri"
+
+#define OC_RSRVD_GROUP_MASTER_ID "gmid"
+
+#define OC_RSRVD_GROUP_TYPE "gtype"
+
+#define OC_RSRVD_SUBJECT_TYPE "stype"
+
+#define OC_RSRVD_GROUP_ID_LIST "gidlist"
+
+#define OC_RSRVD_MEMBER_ID_LIST "midlist"
+
+#define OC_RSRVD_DEVICE_ID_LIST "dilist"
+
+#define OC_RSRVD_ACCESS_CONTROL_LIST "aclist"
+
+#define OC_RSRVD_RESOURCES "resources"
+
+#define OC_RSRVD_VALIDITY "validity"
+
+#define OC_RSRVD_PERIOD "period"
+
+#define OC_RSRVD_RECURRENCE "recurrence"
+
+#define OC_RSRVD_INVITE "invite"
+
+#define OC_RSRVD_INVITED "invited"
+
+#define OC_RSRVD_ENCODING "encoding"
+
+#define OC_OIC_SEC "oic.sec"
+
+#define OC_RSRVD_BASE64 "base64"
+
+#define OC_RSRVD_DER "der"
+
+#define OC_RSRVD_PEM "pem"
+
+#define OC_RSRVD_RAW "raw"
+
+#define OC_RSRVD_UNKNOWN "unknown"
+
+#define OC_RSRVD_DATA "data"
+
+#define OC_RSRVD_RESOURCE_OWNER_UUID "rowneruuid"
+
+#define OC_RSRVD_SUBJECT_UUID "subjectuuid"
+
+#define OC_RSRVD_PERMISSION_MASK "permission"
+
+#define OC_RSRVD_GROUP_PERMISSION "gp"
+
+#define OC_RSRVD_GROUP_ACL "gacl"
+
+/** Certificete Sign Request */
+#define OC_RSRVD_PROV_CERT_URI "/oic/credprov/cert"
+
+#define OC_RSRVD_CSR "csr"
+
+#define OC_RSRVD_CERT "cert"
+
+#define OC_RSRVD_CACERT "certchain"
+
+#define OC_RSRVD_TOKEN_TYPE "tokentype"
+
+#define OC_RSRVD_EXPIRES_IN "expiresin"
+
+#define OC_RSRVD_REDIRECT_URI "redirecturi"
+
+#define OC_RSRVD_CERTIFICATE "certificate"