diff options
Diffstat (limited to 'lib/nettle/mpi.c')
| -rw-r--r-- | lib/nettle/mpi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/nettle/mpi.c b/lib/nettle/mpi.c index 61fddfb7e0..c8dccf6e64 100644 --- a/lib/nettle/mpi.c +++ b/lib/nettle/mpi.c @@ -233,6 +233,9 @@ static void wrap_nettle_mpi_clear(bigint_t a) static int wrap_nettle_mpi_modm(bigint_t r, const bigint_t a, const bigint_t b) { + if (mpz_cmp_ui(TOMPZ(b), 0) == 0) + return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST); + mpz_mod(TOMPZ(r), TOMPZ(a), TOMPZ(b)); return 0; |