1 files changed, 36 insertions, 0 deletions
diff --git a/programs/pluto/mp_defs.h b/programs/pluto/mp_defs.h
new file mode 100644
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+++ b/programs/pluto/mp_defs.h
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+/* some multiprecision utilities
+ * Copyright (C) 1997 Angelos D. Keromytis.
+ * Copyright (C) 1998-2001  D. Hugh Redelmeier.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ *
+ * RCSID $Id: mp_defs.h,v 1.2 2006/01/06 11:40:45 as Exp $
+ */
+
+#ifndef _MP_DEFS_H
+#define _MP_DEFS_H
+
+#include <gmp.h>
+
+#include "defs.h"
+
+extern void n_to_mpz(MP_INT *mp, const u_char *nbytes, size_t nlen);
+extern chunk_t mpz_to_n(const MP_INT *mp, size_t bytes);
+
+/* var := mod(base ** exp, mod), ensuring var is mpz_inited */
+#define mpz_init_powm(flag, var, base, exp, mod) { \
+    if (!(flag)) \
+	mpz_init(&(var)); \
+    (flag) = TRUE; \
+    mpz_powm(&(var), &(base), &(exp), (mod)); \
+    }
+
+#endif /* _MP_DEFS_H */