mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-27 20:25:44 +00:00
6d466422fe
--HG-- extra : rebase_source : 37ce5889894c3a0208c91c2fa254ab6a8c9ba080
37 lines
977 B
C++
37 lines
977 B
C++
/* 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_NUMBERS
|
|
|
|
// We can't divide by 0.
|
|
if (mp_cmp_z(&b) == 0) {
|
|
CLEANUP_AND_RETURN
|
|
}
|
|
|
|
// Compare with OpenSSL mod
|
|
assert(mp_mod(&a, &b, &c) == MP_OKAY);
|
|
(void)BN_mod(C, A, B, ctx);
|
|
check_equal(C, &c, max_size);
|
|
|
|
// Check a mod b = a - floor(a / b) * b
|
|
assert(mp_div(&a, &b, &r, nullptr) == MP_OKAY);
|
|
assert(mp_mul(&r, &b, &r) == MP_OKAY);
|
|
assert(mp_sub(&a, &r, &r) == MP_OKAY);
|
|
assert(mp_cmp(&c, &r) == 0);
|
|
|
|
CLEANUP_AND_RETURN
|
|
}
|