return buffer;
    }

    /**
     * Parse network interface info from encoded bytes
     *
     * @param data encoded data
     * @param offset offset in data
     * @return parsed NetworkInterfaceInfo
     */
    public static NetworkInterfaceInfo decode(byte[] data, int offset) {
        // Ensure we have enough data for the full structure

        assertEquals("NTLM ", headerValue.substring(0, 5), "Header should start with 'NTLM '");

        // Decode the returned Type 2 message and check its signature and type
        byte[] type2Bytes = Base64.getDecoder().decode(headerValue.substring(5));
        assertEquals('N', (char) type2Bytes[0]);
        assertEquals('T', (char) type2Bytes[1]);

        byte[] buffer = new byte[context.size()];
        int encoded = context.encode(buffer, 0);
        assertEquals(context.size(), encoded);

        DirectoryLeaseContext decodedContext = new DirectoryLeaseContext(new Smb2LeaseKey(), 0, DirectoryCacheScope.IMMEDIATE_CHILDREN);

        decodedContext.decode(buffer, 0, buffer.length);

        // Verify roundtrip integrity

    byte[] bytes = new byte[string.length() / 2];
    for (int i = 0; i < string.length(); i += 2) {
      int ch1 = decode(string.charAt(i)) << 4;
      int ch2 = decode(string.charAt(i + 1));
      bytes[i / 2] = (byte) (ch1 + ch2);
    }
    return fromBytesNoCopy(bytes);
  }

  private static int decode(char ch) {
    if (ch >= '0' && ch <= '9') {
      return ch - '0';
    }
    if (ch >= 'a' && ch <= 'f') {

     *
     * @param encryptedString base64 encoded encrypted credentials
     * @return decrypted credentials
     * @throws GeneralSecurityException if decryption fails
     */
    public char[] decryptFromString(String encryptedString) throws GeneralSecurityException {
        if (encryptedString == null) {
            return null;
        }
        byte[] encrypted = Base64.getDecoder().decode(encryptedString);

            byte[] dst = new byte[buffer.size()];
            int bytesEncoded = buffer.encode(dst, 0);

            assertEquals(buffer.size(), bytesEncoded);

            // Decode and verify
            ByteBuffer bb = ByteBuffer.wrap(dst).order(ByteOrder.LITTLE_ENDIAN);
            assertEquals(maxReferralLevel, bb.getShort());

            byte[] pathBytes = path.getBytes(StandardCharsets.UTF_16LE);

        SMBUtil.writeInt8(expectedIndexNumber, buffer, bufferIndex);

        // Decode
        int bytesDecoded = fileInternalInfo.decode(buffer, bufferIndex, 8);

        // Verify
        assertEquals(8, bytesDecoded);
        assertEquals(expectedIndexNumber, fileInternalInfo.getIndexNumber());
    }

    @Test
    @DisplayName("Test decode with zero index number")

        // Decode
        fileBothDirectoryInfo.decode(buffer, 0, buffer.length);

        // Verify - the decode method strips null termination, so filename should match
        assertEquals(expectedFilename, fileBothDirectoryInfo.getFilename());
    }

    @Test
    @DisplayName("Test decode with null-terminated non-Unicode filename")

    }

    @Test
    @DisplayName("Test decode with minimum valid length")
    void testDecodeMinimumValidLength() throws SMBProtocolDecodingException {
        // Prepare minimum valid buffer - exactly 24 bytes
        byte[] buffer = new byte[28];
        Arrays.fill(buffer, 0, 24, (byte) 0xAA);

        // Decode with len = 24 (minimum valid)
        int bytesConsumed = response.decode(buffer, 0, 24);

                new RequestParameter("lang", new String[] { "en", "ja" }) };
        String encoded = searchHelper.serializeParameters(params);
        assertNotNull(encoded);
        byte[] compressed = Base64.getUrlDecoder().decode(encoded);
        byte[] jsonBytes = searchHelper.gzipDecompress(compressed);
        String json = new String(jsonBytes);
        assertTrue(json.contains("q"));