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Bug 1334106 - split mpi target, r=ttaubert
Differential Revision: https://nss-review.dev.mozaws.net/D189 --HG-- extra : rebase_source : 30bd247a2eb5023e3ce5438b3f32d73ac3752065 extra : histedit_source : 3e3642f16fe9526943b563560468e4944bf37ff6
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| /* 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" | ||
|
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| 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 | ||
|
|
||
| // Compare with OpenSSL addition | ||
| assert(mp_add(&a, &b, &c) == MP_OKAY); | ||
| (void)BN_add(C, A, B); | ||
| check_equal(C, &c, max_size); | ||
|
|
||
| // Check a + b == a - -b | ||
| mp_neg(&b, &b); | ||
| assert(mp_sub(&a, &b, &r) == MP_OKAY); | ||
| bool eq = mp_cmp(&r, &c) == 0; | ||
| if (!eq) { | ||
| char rC[max_size], cC[max_size], aC[max_size], bC[max_size]; | ||
| mp_tohex(&r, rC); | ||
| mp_tohex(&c, cC); | ||
| mp_tohex(&a, aC); | ||
| mp_tohex(&b, bC); | ||
| std::cout << "a = " << std::hex << aC << std::endl; | ||
| std::cout << "-b = " << std::hex << bC << std::endl; | ||
| std::cout << "a + b = " << std::hex << cC << std::endl; | ||
| std::cout << "a - -b = " << std::hex << rC << std::endl; | ||
| } | ||
| assert(eq); | ||
|
|
||
| CLEANUP_AND_RETURN | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -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_NUMBERS | ||
|
|
||
| auto modulus = get_modulus(data, size, ctx); | ||
| // Compare with OpenSSL add mod | ||
| m1 = &std::get<1>(modulus); | ||
| assert(mp_addmod(&a, &b, m1, &c) == MP_OKAY); | ||
| (void)BN_mod_add(C, A, B, std::get<0>(modulus), ctx); | ||
| check_equal(C, &c, max_size); | ||
|
|
||
| CLEANUP_AND_RETURN | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /* 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 | ||
| } | ||
|
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| // Compare with OpenSSL division | ||
| assert(mp_div(&a, &b, &c, &r) == MP_OKAY); | ||
| BN_div(C, R, A, B, ctx); | ||
| check_equal(C, &c, max_size); | ||
| check_equal(R, &r, max_size); | ||
|
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||
| // Check c * b + r == a | ||
| assert(mp_mul(&c, &b, &c) == MP_OKAY); | ||
| assert(mp_add(&c, &r, &c) == MP_OKAY); | ||
| assert(mp_cmp(&c, &a) == 0); | ||
|
|
||
| CLEANUP_AND_RETURN | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -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_NUMBERS | ||
|
|
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| auto modulus = get_modulus(data, size, ctx); | ||
| // Compare with OpenSSL exp mod | ||
| m1 = &std::get<1>(modulus); | ||
| 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); | ||
|
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| CLEANUP_AND_RETURN | ||
| } |
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