hmac.update(clientChallenge);
        hmac.digest(response, 0, 16);
        System.arraycopy(clientChallenge, 0, response, 16, 8);
        return response;
    }

    /**
     * Generate the Unicode MD4 hash for the password associated with these credentials.
     *
     * @param password the password to hash
     * @param challenge the server challenge bytes
     * @return the calculated response

            date = new Date(completeBigInt.longValue());
        }

        return date;
    }

    /**
     * Reads a PAC Unicode string structure.
     * @return the PAC Unicode string object
     * @throws IOException if an I/O error occurs
     * @throws PACDecodingException if the string structure is malformed
     */

    }

    @ParameterizedTest
    @DisplayName("Test decode with various file names")
    @CsvSource({ "a.txt", "very_long_filename_with_many_characters_to_test_buffer_handling.docx", "file with spaces.pdf", "文件.txt", // Unicode filename
            "file-with-special-chars!@#$%^&().bin" })
    void testDecodeWithVariousFileNames(String fileName) throws SMBProtocolDecodingException {

        assertEquals(testString, readString);
    }

    @Test
    void testStringReadWriteUnicode() throws UnsupportedEncodingException {
        smb.useUnicode = true;
        String testString = "Hello Unicode World";
        byte[] buffer = new byte[testString.length() * 2 + 2];
        int len = smb.writeString(testString, buffer, 0);
        assertEquals(testString.length() * 2 + 2, len);

    }

    int writeString(final String str, final byte[] dst, int dstIndex, final boolean useUnicode) {
        final int start = dstIndex;

        try {
            if (useUnicode) {
                // Unicode requires word alignment
                if ((dstIndex - headerStart) % 2 != 0) {
                    dst[dstIndex++] = (byte) '\0';
                }

        assertEquals(message, exception.getMessage());
    }

    public void test_unicodeCharactersInMessage() {
        // Test with Unicode characters in message
        String message = "LDAP設定エラー: 接続失敗 🚫 ñ é ü ß";
        LdapConfigurationException exception = new LdapConfigurationException(message);

        assertEquals(message, exception.getMessage());

        int size = 64;
        final boolean unicode = getFlag(NTLMSSP_NEGOTIATE_UNICODE);
        final String oemCp = unicode ? null : getOEMEncoding();

        final String domainName = getDomain();
        byte[] domainBytes = null;
        if (domainName != null && domainName.length() != 0) {
            domainBytes = unicode ? domainName.getBytes(UNI_ENCODING) : domainName.getBytes(oemCp);

		{"0.123456789abcdef", time.Time{}, false},
		{"foo", time.Time{}, false},
		{"\x00", time.Time{}, false},
		{"𝟵𝟴𝟳𝟲𝟱.𝟰𝟯𝟮𝟭𝟬", time.Time{}, false}, // Unicode numbers (U+1D7EC to U+1D7F5)
		{"98765﹒43210", time.Time{}, false}, // Unicode period (U+FE52)
	}

	for _, v := range vectors {
		ts, err := parsePAXTime(v.in)
		ok := (err == nil)
		if v.ok != ok {
			if v.ok {

    }

    // Test append with Unicode characters
    public void test_append_unicodeCharacters() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> "テスト 测试 테스트 🎉";

        monitorTarget.append(buf, "unicodeKey", supplier);
        // Unicode characters are escaped in JSON format

    /**
     *
     */
    private static final long serialVersionUID = -2832037191318016836L;

    /** The ANSI password hash */
    private byte[] ansiHash;
    /** The Unicode password hash */
    private byte[] unicodeHash;
    /** Flag indicating if hashes are externally provided */
    private boolean hashesExternal = false;
    /** The CIFS context for this authentication */