+#ifdef HAVE_NETTLE
+ struct des_ctx des;
+
+ setup_des_key(keys, &des);
+ nettle_des_encrypt(&des, 8, results, plaintext);
+
+ setup_des_key(keys + 7, &des);
+ nettle_des_encrypt(&des, 8, results + 8, plaintext);
+
+ setup_des_key(keys + 14, &des);
+ nettle_des_encrypt(&des, 8, results + 16, plaintext);
+#else