From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- security/nss/fuzz/mpi_submod_target.cc | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 security/nss/fuzz/mpi_submod_target.cc (limited to 'security/nss/fuzz/mpi_submod_target.cc') diff --git a/security/nss/fuzz/mpi_submod_target.cc b/security/nss/fuzz/mpi_submod_target.cc new file mode 100644 index 0000000000..26b2c5323d --- /dev/null +++ b/security/nss/fuzz/mpi_submod_target.cc @@ -0,0 +1,27 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * This target fuzzes NSS mpi against openssl bignum. + * It therefore requires openssl to be installed. + */ + +#include "mpi_helper.h" + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { + // We require at least size 3 to get two integers from Data. + if (size < 3) { + return 0; + } + INIT_FOUR_NUMBERS + + auto modulus = get_modulus(data, size, ctx); + // Compare with OpenSSL sub mod + m1 = &std::get<1>(modulus); + assert(mp_submod(&a, &b, m1, &c) == MP_OKAY); + (void)BN_mod_sub(C, A, B, std::get<0>(modulus), ctx); + check_equal(C, &c, 2 * max_size); + + CLEANUP_AND_RETURN +} -- cgit v1.2.3