[crypto] reduce memcpy() usage (#2018)

2026-08-26 20:19:53 +00:00 · 2017-07-20 22:15:44 -07:00
parent 2aa9830a07
commit ffd28ebd4d
4 changed files with 130 additions and 24 deletions
@@ -0,0 +1,88 @@
+/*
+ *  Copyright (c) 2017, The OpenThread Authors.
+ *  All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions are met:
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *  3. Neither the name of the copyright holder nor the
+ *     names of its contributors may be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *  POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <openthread/config.h>
+#include <openthread/openthread.h>
+
+#include "meshcop/commissioner.hpp"
+#include "utils/wrap_string.h"
+#include "common/logging.hpp"
+
+#include "test_platform.h"
+#include "test_util.h"
+
+static const uint8_t sXPanId[] =
+{
+    0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
+};
+
+void TestMinimumPassphrase(void)
+{
+    uint8_t pskc[OT_PSKC_MAX_SIZE];
+    const uint8_t expectedPskc[] =
+    {
+        0x44, 0x98, 0x8e, 0x22, 0xcf, 0x65, 0x2e, 0xee,
+        0xcc, 0xd1, 0xe4, 0xc0, 0x1d, 0x01, 0x54, 0xf8
+    };
+    const char passphrase[] = "123456";
+    otInstance *instance = testInitInstance();
+    SuccessOrQuit(ot::MeshCoP::Commissioner::GeneratePSKc(passphrase, "OpenThread", sXPanId, pskc),
+                  "TestMinimumPassphrase failed to generate PSKc");
+    VerifyOrQuit(memcmp(pskc, expectedPskc, sizeof(pskc)) == 0, "TestMinimumPassphrase got wrong pskc");
+    testFreeInstance(instance);
+}
+
+void TestMaximumPassphrase(void)
+{
+    uint8_t pskc[OT_PSKC_MAX_SIZE];
+    const uint8_t expectedPskc[] =
+    {
+        0x9e, 0x81, 0xbd, 0x35, 0xa2, 0x53, 0x76, 0x2f,
+        0x80, 0xee, 0x04, 0xff, 0x2f, 0xa2, 0x85, 0xe9
+    };
+    const char passphrase[] =
+        "1234567812345678" "1234567812345678" "1234567812345678" "1234567812345678"
+        "1234567812345678" "1234567812345678" "1234567812345678" "1234567812345678"
+        "1234567812345678" "1234567812345678" "1234567812345678" "1234567812345678"
+        "1234567812345678" "1234567812345678" "1234567812345678" "123456781234567";
+
+    otInstance *instance = testInitInstance();
+    SuccessOrQuit(ot::MeshCoP::Commissioner::GeneratePSKc(passphrase, "OpenThread", sXPanId, pskc),
+                  "TestMaximumPassphrase failed to generate PSKc");
+    VerifyOrQuit(memcmp(pskc, expectedPskc, sizeof(pskc)) == 0, "TestMaximumPassphrase got wrong pskc");
+    testFreeInstance(instance);
+}
+
+#ifdef ENABLE_TEST_MAIN
+int main(void)
+{
+    TestMinimumPassphrase();
+    TestMaximumPassphrase();
+    printf("All tests passed\n");
+    return 0;
+}
+#endif