diff options
Diffstat (limited to 'libtommath/bn_s_mp_mul_digs.c')
| -rw-r--r-- | libtommath/bn_s_mp_mul_digs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libtommath/bn_s_mp_mul_digs.c b/libtommath/bn_s_mp_mul_digs.c index 64509d4..3682b49 100644 --- a/libtommath/bn_s_mp_mul_digs.c +++ b/libtommath/bn_s_mp_mul_digs.c @@ -16,6 +16,10 @@ mp_err s_mp_mul_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs) mp_word r; mp_digit tmpx, *tmpt, *tmpy; + if (digs < 0) { + return MP_VAL; + } + /* can we use the fast multiplier? */ if ((digs < MP_WARRAY) && (MP_MIN(a->used, b->used) < MP_MAXFAST)) { |