Quantum-Resilient Antenna-Assisted Communication Protocols for Satellite-Based Secure IoT Networks

Abstract

To solve the issue of new security threats to the satellite-based IoT (Sat-IoT) networks introduced by quantum computing, this research intends to create a quantum-resistant communication protocol of the satellite category of networks (Sat-IoT). As novel low Earth orbit
(LEO) satellite constellations emerge to enable the reach of global IoT networks, secure and flexible communication in the presence of quantum-capable adversaries constitutes the most important consideration. In the given study, the post-quantum cryptographic
package (lattice-based encryption: Kyber-1024) is combined with the reconfigurable antenna system in order to perform enhanced two- level security. A new protocol suite is proposed combining a quantum-safe key exchange, physical-layer beam reconfiguration
and integrity-aware adaptive link management. The model is an analytical model which is verified with satellite channel requirements utilizing LEO dynamics. The most important measures of performance are key compromise probability, signal-in-interference-plus-
noise ratio (SINR), and encryption latency of simulated quantum attacks. The findings show that the suggested protocol can better the key compromise resistance levels by up to 82 percent than the conventional ECC-based or RSA-based protocols. The adaptive antenna subsystem will also increase the resilience of the links in a high interference environment by 45 per cent. These findings help find out that the cryptographic hardening, combined with antenna level adaptability, can improve the Sat-IoT network survivability in the quantum age tremendously. To sum up, this work looks promising as a similar work can eventually be employed to allow scalable and forward-compatible secure satellite-IoT communication and acts as a scalable anchor of future quantum-safe Sat- IoT implementations.