diff options
| author | wolfbeast <mcwerewolf@gmail.com> | 2018-02-23 11:04:39 +0100 |
|---|---|---|
| committer | wolfbeast <mcwerewolf@gmail.com> | 2018-06-05 22:24:08 +0200 |
| commit | e10349ab8dda8a3f11be6aa19f2b6e29fe814044 (patch) | |
| tree | 1a9b078b06a76af06839d407b7267880890afccc /security/nss/fuzz/mpi_expmod_target.cc | |
| parent | 75b3dd4cbffb6e4534128278300ed6c8a3ab7506 (diff) | |
| download | UXP-e10349ab8dda8a3f11be6aa19f2b6e29fe814044.tar UXP-e10349ab8dda8a3f11be6aa19f2b6e29fe814044.tar.gz UXP-e10349ab8dda8a3f11be6aa19f2b6e29fe814044.tar.lz UXP-e10349ab8dda8a3f11be6aa19f2b6e29fe814044.tar.xz UXP-e10349ab8dda8a3f11be6aa19f2b6e29fe814044.zip | |
Update NSS to 3.35-RTM
Diffstat (limited to 'security/nss/fuzz/mpi_expmod_target.cc')
| -rw-r--r-- | security/nss/fuzz/mpi_expmod_target.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/security/nss/fuzz/mpi_expmod_target.cc b/security/nss/fuzz/mpi_expmod_target.cc index ed31da354..b9be5854f 100644 --- a/security/nss/fuzz/mpi_expmod_target.cc +++ b/security/nss/fuzz/mpi_expmod_target.cc @@ -19,6 +19,15 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { auto modulus = get_modulus(data, size, ctx); // Compare with OpenSSL exp mod m1 = &std::get<1>(modulus); + // The exponent b (B) can get really big. Make it smaller if necessary. + if (MP_USED(&b) > 100) { + size_t shift = (MP_USED(&b) - 100) * MP_DIGIT_BIT; + mp_div_2d(&b, shift, &b, nullptr); + BN_rshift(B, B, shift); + } + check_equal(A, &a, max_size); + check_equal(B, &b, max_size); + check_equal(std::get<0>(modulus), m1, 3 * max_size); assert(mp_exptmod(&a, &b, m1, &c) == MP_OKAY); (void)BN_mod_exp(C, A, B, std::get<0>(modulus), ctx); check_equal(C, &c, 2 * max_size); |