| /* 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 2 to get an integers from Data. |
| if (size < 2) { |
| return 0; |
| } |
| |
| INIT_THREE_NUMBERS |
| |
| // Compare with OpenSSL sqr |
| assert(mp_sqr(&a, &c) == MP_OKAY); |
| (void)BN_sqr(C, A, ctx); |
| check_equal(C, &c, max_size); |
| |
| // Check a * a == a**2 |
| assert(mp_mul(&a, &a, &b) == MP_OKAY); |
| bool eq = mp_cmp(&b, &c) == 0; |
| if (!eq) { |
| char rC[max_size], cC[max_size], aC[max_size]; |
| mp_tohex(&b, rC); |
| mp_tohex(&c, cC); |
| mp_tohex(&a, aC); |
| std::cout << "a = " << std::hex << aC << std::endl; |
| std::cout << "a * a = " << std::hex << cC << std::endl; |
| std::cout << "a ** 2 = " << std::hex << rC << std::endl; |
| } |
| assert(eq); |
| |
| CLEANUP_AND_RETURN_THREE |
| } |