diff options
Diffstat (limited to 'libtommath/bn_mp_exptmod_fast.c')
| -rw-r--r-- | libtommath/bn_mp_exptmod_fast.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/libtommath/bn_mp_exptmod_fast.c b/libtommath/bn_mp_exptmod_fast.c index 0d01e38..4de9c5f 100644 --- a/libtommath/bn_mp_exptmod_fast.c +++ b/libtommath/bn_mp_exptmod_fast.c @@ -9,8 +9,7 @@ * Michael Fromberger but has been written from scratch with * additional optimizations in place. * - * The library is free for all purposes without any express - * guarantee it works. + * SPDX-License-Identifier: Unlicense */ /* computes Y == G**X mod P, HAC pp.616, Algorithm 14.85 @@ -165,15 +164,15 @@ int mp_exptmod_fast(const mp_int *G, const mp_int *X, const mp_int *P, mp_int *Y } /* compute the value at M[1<<(winsize-1)] by squaring M[1] (winsize-1) times */ - if ((err = mp_copy(&M[1], &M[1 << (winsize - 1)])) != MP_OKAY) { + if ((err = mp_copy(&M[1], &M[(size_t)1 << (winsize - 1)])) != MP_OKAY) { goto LBL_RES; } for (x = 0; x < (winsize - 1); x++) { - if ((err = mp_sqr(&M[1 << (winsize - 1)], &M[1 << (winsize - 1)])) != MP_OKAY) { + if ((err = mp_sqr(&M[(size_t)1 << (winsize - 1)], &M[(size_t)1 << (winsize - 1)])) != MP_OKAY) { goto LBL_RES; } - if ((err = redux(&M[1 << (winsize - 1)], P, mp)) != MP_OKAY) { + if ((err = redux(&M[(size_t)1 << (winsize - 1)], P, mp)) != MP_OKAY) { goto LBL_RES; } } |