+/*
+ * x448.c: Hamburg's X448 key-exchange function
+ */
+/*
+ * This file is Free Software. It has been modified to as part of its
+ * incorporation into secnet.
+ *
+ * Copyright 2017 Mark Wooding
+ *
+ * You may redistribute this file and/or modify it under the terms of
+ * the permissive licence shown below.
+ *
+ * You may redistribute secnet as a whole and/or modify it under the
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see
+ * https://www.gnu.org/licenses/gpl.html.
+ */
+/*
+ * Imported from Catacomb, and modified for Secnet (2017-04-30):
+ *
+ * * Use `fake-mLib-bits.h' in place of the real <mLib/bits.h>.
+ *
+ * * Remove the test rig code: a replacement is in a separate source file.
+ *
+ * * Strip out the key-management definitions.
+ *
+ * The file's original comment headers are preserved below.
+ */