// Act & Assert
        assertTrue(signingDigest.verify(testData, 0, 8, 0, message));
        assertFalse(signingDigest.verify(testData, 0, 8, 0, message));
        assertTrue(signingDigest.verify(testData, 0, 8, 0, message));
        assertFalse(signingDigest.verify(testData, 0, 8, 0, message));
        assertTrue(signingDigest.verify(testData, 0, 8, 0, message));

        SMBUtil.writeInt4(messageLength, buffer, bufferIndex + 12);
        System.arraycopy(testData, 0, buffer, bufferIndex + 16, testData.length);

        // Decode
        int bytesDecoded = response.decode(buffer, bufferIndex, buffer.length);

        // Verify results
        assertEquals(namedPipeState, response.getNamedPipeState());

        ExecutorService executor = Executors.newFixedThreadPool(threadCount);

        // Create test data
        byte[] testData = new byte[64];
        for (int i = 0; i < testData.length; i++) {
            testData[i] = (byte) i;
        }

        // Run concurrent updates
        for (int i = 0; i < threadCount; i++) {
            executor.submit(() -> {
                try {

        SMBUtil.writeInt4(0, buffer, bodyStart + 12);

        // Write test data at the specified offset
        byte[] testData = new byte[dataLength];
        for (int i = 0; i < dataLength; i++) {
            testData[i] = (byte) (i & 0xFF);
        }
        System.arraycopy(testData, 0, buffer, dataOffsetFromHeader, dataLength);

        // Use reflection to set headerStart

        assertNotNull(os);
        byte[] testData = "test data".getBytes();
        os.write(testData);
        os.flush();
        os.close();

        // Assert
        // Verify that data was written to the underlying stream through CacheStream
        verify(initialOutputStream).write(testData);
        verify(initialOutputStream).flush();
        verify(initialOutputStream).close();

            // Test data preparation
            byte[] testData = "Test RDMA data transfer".getBytes();
            sendBuffer.getBuffer().put(testData);
            sendBuffer.getBuffer().flip();
            assertEquals(testData.length, sendBuffer.getBuffer().remaining(), "Buffer should contain test data");

            // Clean up

    private static final byte[] LONG_TEST_KEY = new byte[80]; // Longer than 64 bytes
    private static final byte[] SHORT_TEST_KEY = "short".getBytes();
    private static final byte[] TEST_DATA = "testdata".getBytes();
    private static final byte[] EMPTY_DATA = new byte[0];

    static {
        // Initialize long key with predictable data
        Arrays.fill(LONG_TEST_KEY, (byte) 0xAB);
    }

    @Test

    private static final byte[] LONG_TEST_KEY = "thisisalongtestkeythatislongerthan64bytesandshouldbetruncated".getBytes();
    private static final byte[] SHORT_TEST_KEY = "short".getBytes();
    private static final byte[] TEST_DATA = "testdata".getBytes();
    private static final byte[] EMPTY_DATA = new byte[0];

    @Mock
    private MessageDigest mockMd5;

    @BeforeEach
    void setUp() throws NoSuchAlgorithmException {

        // Clean up
        Arrays.fill(plaintext, '\0');
    }

    @Test
    public void testDecryptWithWrongSalt() throws Exception {
        char[] plaintext = "TestData".toCharArray();

        // Encrypt with first storage
        byte[] encrypted = storage.encryptCredentials(plaintext);

        // Create new storage with different salt