Real-Time and Secretly Monitoring the Screen of a Remote Desktop Session

In this work, we use a Programming ProtocolIndependent Packet Processors (P4) hardware switch to design and implement a remote desktop monitoring system. This system can real-time monitor the screen of another person's remote desktop session if the session is not encrypted or if the session is encrypted but the encryption key has been compromised. Our system incurs only an average delay of 12 ms on the mouse and keyboard operations that the user performs, which can hardly be noticed. In this paper, we present the design, implementation, demonstration, and performance of our system.