/* 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(&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);