diff options
Diffstat (limited to 'libtommath/bn_s_mp_mul_high_digs_fast.c')
| -rw-r--r-- | libtommath/bn_s_mp_mul_high_digs_fast.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libtommath/bn_s_mp_mul_high_digs_fast.c b/libtommath/bn_s_mp_mul_high_digs_fast.c index a0513b4..0796f72 100644 --- a/libtommath/bn_s_mp_mul_high_digs_fast.c +++ b/libtommath/bn_s_mp_mul_high_digs_fast.c @@ -19,6 +19,10 @@ mp_err s_mp_mul_high_digs_fast(const mp_int *a, const mp_int *b, mp_int *c, int mp_digit W[MP_WARRAY]; mp_word _W; + if (digs < 0) { + return MP_VAL; + } + /* grow the destination as required */ pa = a->used + b->used; if (c->alloc < pa) { |