// with MD5 or 512-bit RSA; that's insecure!
    //
    // openssl req \
    //   -x509 \
    //   -md5 \
    //   -nodes \
    //   -days 1 \
    //   -newkey rsa:512 \
    //   -keyout privateKey.key \
    //   -out certificate.crt
    val certificatePem =
      """
      |-----BEGIN CERTIFICATE-----
      |MIIBFzCBwgIJAIVAqagcVN7/MA0GCSqGSIb3DQEBBAUAMBMxETAPBgNVBAMMCGNh

// Submitted by JaeYoong Lee <******@****.***>
ktistory.com

// Kapsi : https://kapsi.fi
// Submitted by Tomi Juntunen <******@****.***>
kapsi.fi

// Keyweb AG : https://www.keyweb.de
// Submitted by Martin Dannehl <******@****.***>
keymachine.de

// KingHost : https://king.host
// Submitted by Felipe Keller Braz <******@****.***>
kinghost.net

          // Byte xor is experimental in Kotlin so we coerce bytes to int, xor them
          // and convert back to byte.
          val bufferInt: Int = buffer[i].toInt()
          val keyInt: Int = key[keyIndex].toInt()
          buffer[i] = (bufferInt xor keyInt).toByte()

          i++
          keyIndex++
        }
      }
    } while (cursor.next() != -1)
  }

  fun closeCodeExceptionMessage(code: Int): String? {