)
    return CertificateAdapters.subjectPublicKeyInfo.toDer(subjectPublicKeyInfo)
  }

  /** Returns a byte string that differs from this one by one bit. */
  private fun ByteString.offByOneBit(): ByteString =
    Buffer()
      .write(this, 0, size - 1)
      .writeByte(this[size - 1].toInt() xor 1)
      .readByteString()

  private fun date(s: String): Date =

        // Skip 7 reserved bytes (1-7)
        // Skip 8 bytes for RootDirectory (8-15)
        SMBUtil.writeInt4(nameBytes.length, buffer, 16);
        System.arraycopy(nameBytes, 0, buffer, 20, nameBytes.length);

        FileRenameInformation2 info = new FileRenameInformation2();
        int bytesRead = info.decode(buffer, 0, buffer.length);

        assertEquals(20 + nameBytes.length, bytesRead);

        assertEquals(32, SMBUtil.readInt2(buffer, offset));

        // Verify notify flags
        assertEquals(Smb2ChangeNotifyRequest.SMB2_WATCH_TREE, SMBUtil.readInt2(buffer, offset + 2));

        // Verify output buffer length
        assertEquals(8192, SMBUtil.readInt4(buffer, offset + 4));

        // Verify file ID
        byte[] readFileId = new byte[16];
        System.arraycopy(buffer, offset + 8, readFileId, 0, 16);

        byte[] buffer = new byte[100];
        int offset = 20;

        // Prepare data at offset
        int dataOffset = offset;
        SMBUtil.writeInt4(0, buffer, dataOffset);
        dataOffset += 4;
        SMBUtil.writeInt4(8, buffer, dataOffset);
        dataOffset += 4;
        SMBUtil.writeInt4(1000000, buffer, dataOffset);
        dataOffset += 4;
        SMBUtil.writeInt4(500000, buffer, dataOffset);

    ByteBuffer buffer;

    ByteBufferHasher(int expectedInputSize) {
      this.buffer = ByteBuffer.allocate(expectedInputSize).order(ByteOrder.LITTLE_ENDIAN);
    }

    /**
     * Resizes the buffer if necessary. Guaranteed to leave `buffer` in Write Mode ready for new
     * data.
     */
    private void ensureCapacity(int needed) {
      if (buffer.remaining() >= needed) {
        return;
      }

        domainInfo.name = new rpc.unicode_string();
        domainInfo.name.buffer = null;
        domainInfo.sid = null;

        // Encode to buffer
        byte[] buffer = new byte[1024];
        NdrBuffer encodeBuffer = new NdrBuffer(buffer, 0);
        domainInfo.encode(encodeBuffer);

        // Decode from buffer
        NdrBuffer decodeBuffer = new NdrBuffer(buffer, 0);
        lsarpc.LsarDomainInfo decodedInfo = new lsarpc.LsarDomainInfo();

    /**
     * Creates a security descriptor by decoding from a byte buffer.
     *
     * @param buffer the byte buffer containing the security descriptor data
     * @param bufferIndex the starting offset in the buffer
     * @param len the length of data to decode
     * @throws IOException if an I/O error occurs during decoding
     */
    public SecurityDescriptor(final byte[] buffer, final int bufferIndex, final int len) throws IOException {

        assertNotNull(emptyUnicodeStringTrue.buffer, "Buffer should not be null for empty string with zterm");
        assertEquals(1, emptyUnicodeStringTrue.buffer.length, "Buffer length should be 1 for empty string with zterm");
        assertEquals(0, emptyUnicodeStringTrue.buffer[0], "Buffer should contain only zero for empty string with zterm");

        // Test with an empty string and zterm = false

            // Create a buffer with null terminator within the max length
            byte[] buffer = new byte[20];
            System.arraycopy("Test".getBytes(), 0, buffer, 0, 4);
            buffer[4] = 0; // null terminator
            System.arraycopy("String".getBytes(), 0, buffer, 5, 6);

            String result = testBlock.readString(buffer, 0, buffer.length, 10, false);

            assertEquals("Test", result);

            int bytesWritten = context.encode(buffer, 0);

            assertEquals(6, bytesWritten);
            assertEquals(2, SMBUtil.readInt2(buffer, 0));
            assertEquals(EncryptionNegotiateContext.CIPHER_AES128_CCM, SMBUtil.readInt2(buffer, 2));
            assertEquals(EncryptionNegotiateContext.CIPHER_AES128_GCM, SMBUtil.readInt2(buffer, 4));
        }

        @Test