+#define OPENPGP_HASH_SHA1X 4 /* In RFC2440, not in RFC4880 */
+#define OPENPGP_HASH_MD2 5 /* In RFC2440, not in RFC4880 */
+#define OPENPGP_HASH_TIGER192 6 /* In RFC2440, not in RFC4880 */
+#define OPENPGP_HASH_HAVAL_5_160 7 /* In RFC2440, not in RFC4880 */