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Diffstat (limited to 'libtommath/bn_mp_montgomery_setup.c')
-rw-r--r--libtommath/bn_mp_montgomery_setup.c21
1 files changed, 4 insertions, 17 deletions
diff --git a/libtommath/bn_mp_montgomery_setup.c b/libtommath/bn_mp_montgomery_setup.c
index c9c3cf1..39f6e9d 100644
--- a/libtommath/bn_mp_montgomery_setup.c
+++ b/libtommath/bn_mp_montgomery_setup.c
@@ -1,19 +1,10 @@
#include "tommath_private.h"
#ifdef BN_MP_MONTGOMERY_SETUP_C
-/* LibTomMath, multiple-precision integer library -- Tom St Denis
- *
- * LibTomMath is a library that provides multiple-precision
- * integer arithmetic as well as number theoretic functionality.
- *
- * The library was designed directly after the MPI library by
- * Michael Fromberger but has been written from scratch with
- * additional optimizations in place.
- *
- * SPDX-License-Identifier: Unlicense
- */
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
/* setups the montgomery reduction stuff */
-int mp_montgomery_setup(const mp_int *n, mp_digit *rho)
+mp_err mp_montgomery_setup(const mp_int *n, mp_digit *rho)
{
mp_digit x, b;
@@ -44,12 +35,8 @@ int mp_montgomery_setup(const mp_int *n, mp_digit *rho)
#endif
/* rho = -1/m mod b */
- *rho = (mp_digit)(((mp_word)1 << (mp_word)DIGIT_BIT) - x) & MP_MASK;
+ *rho = (mp_digit)(((mp_word)1 << (mp_word)MP_DIGIT_BIT) - x) & MP_MASK;
return MP_OKAY;
}
#endif
-
-/* ref: HEAD -> master, tag: v1.1.0 */
-/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
-/* commit time: 2019-01-28 20:32:32 +0100 */