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authorwolfbeast <mcwerewolf@gmail.com>2018-02-06 11:46:26 +0100
committerwolfbeast <mcwerewolf@gmail.com>2018-02-06 11:46:26 +0100
commitf017b749ea9f1586d2308504553d40bf4cc5439d (patch)
treec6033924a0de9be1ab140596e305898c651bf57e /security/nss/fuzz/mpi_add_target.cc
parent7c728b3c7680662fc4e92b5d03697b8339560b08 (diff)
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Update NSS to 3.32.1-RTM
Diffstat (limited to 'security/nss/fuzz/mpi_add_target.cc')
-rw-r--r--security/nss/fuzz/mpi_add_target.cc42
1 files changed, 42 insertions, 0 deletions
diff --git a/security/nss/fuzz/mpi_add_target.cc b/security/nss/fuzz/mpi_add_target.cc
new file mode 100644
index 000000000..3ebad370d
--- /dev/null
+++ b/security/nss/fuzz/mpi_add_target.cc
@@ -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"
+
+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
+
+ // 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
+}