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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_helper.h
parent7c728b3c7680662fc4e92b5d03697b8339560b08 (diff)
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Update NSS to 3.32.1-RTM
Diffstat (limited to 'security/nss/fuzz/mpi_helper.h')
-rw-r--r--security/nss/fuzz/mpi_helper.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/security/nss/fuzz/mpi_helper.h b/security/nss/fuzz/mpi_helper.h
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+++ b/security/nss/fuzz/mpi_helper.h
@@ -0,0 +1,86 @@
+/* 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/. */
+
+/* Helper functions for MPI fuzzing targets. */
+
+#ifndef mpi_helper_h__
+#define mpi_helper_h__
+
+#include <iostream>
+#include <string>
+#include <tuple>
+#include <vector>
+
+#include "hasht.h"
+#include "mpi.h"
+
+#include <openssl/bn.h>
+
+void check_equal(BIGNUM *b, mp_int *m, size_t max_size);
+void parse_input(const uint8_t *data, size_t size, BIGNUM *A, BIGNUM *B,
+ mp_int *a, mp_int *b);
+void parse_input(const uint8_t *data, size_t size, BIGNUM *A, mp_int *a);
+std::tuple<BIGNUM *, mp_int> get_modulus(const uint8_t *data, size_t size,
+ BN_CTX *ctx);
+
+// Initialise MPI and BN variables
+// XXX: Also silence unused variable warnings for R.
+#define INIT_FOUR_NUMBERS \
+ mp_int a, b, c, r; \
+ mp_int *m1 = nullptr; \
+ BN_CTX *ctx = BN_CTX_new(); \
+ BN_CTX_start(ctx); \
+ BIGNUM *A = BN_CTX_get(ctx); \
+ BIGNUM *B = BN_CTX_get(ctx); \
+ BIGNUM *C = BN_CTX_get(ctx); \
+ BIGNUM *R = BN_CTX_get(ctx); \
+ assert(mp_init(&a) == MP_OKAY); \
+ assert(mp_init(&b) == MP_OKAY); \
+ assert(mp_init(&c) == MP_OKAY); \
+ assert(mp_init(&r) == MP_OKAY); \
+ size_t max_size = 2 * size + 1; \
+ parse_input(data, size, A, B, &a, &b); \
+ do { \
+ (void)(R); \
+ } while (0);
+
+// Initialise MPI and BN variables
+// XXX: Also silence unused variable warnings for B.
+#define INIT_THREE_NUMBERS \
+ mp_int a, b, c; \
+ BN_CTX *ctx = BN_CTX_new(); \
+ BN_CTX_start(ctx); \
+ BIGNUM *A = BN_CTX_get(ctx); \
+ BIGNUM *B = BN_CTX_get(ctx); \
+ BIGNUM *C = BN_CTX_get(ctx); \
+ assert(mp_init(&a) == MP_OKAY); \
+ assert(mp_init(&b) == MP_OKAY); \
+ assert(mp_init(&c) == MP_OKAY); \
+ size_t max_size = 4 * size + 1; \
+ parse_input(data, size, A, &a); \
+ do { \
+ (void)(B); \
+ } while (0);
+
+#define CLEANUP_AND_RETURN \
+ mp_clear(&a); \
+ mp_clear(&b); \
+ mp_clear(&c); \
+ mp_clear(&r); \
+ if (m1) { \
+ mp_clear(m1); \
+ } \
+ BN_CTX_end(ctx); \
+ BN_CTX_free(ctx); \
+ return 0;
+
+#define CLEANUP_AND_RETURN_THREE \
+ mp_clear(&a); \
+ mp_clear(&b); \
+ mp_clear(&c); \
+ BN_CTX_end(ctx); \
+ BN_CTX_free(ctx); \
+ return 0;
+
+#endif // mpi_helper_h__