Feasibility of Quantum‑Resistant Cryptography on Resource‑Constrained Satellites

Ascertain the feasibility of deploying quantum‑resistant cryptographic protocols on resource‑constrained satellite platforms used in integrated terrestrial–non‑terrestrial networks, including evaluation of algorithmic complexity, performance overhead, and energy usage under in‑orbit operating conditions.

Background

In discussing security for integrated terrestrial and non‑terrestrial networks, the paper considers adopting quantum‑resistant cryptographic protocols to future‑proof communications. Satellites, however, face stringent limits on power, processing, and thermal budgets, which may render such protocols impractical without careful assessment and optimization.

The authors explicitly note that the feasibility of quantum‑resistant cryptography in satellite environments remains to be evaluated, highlighting the need for rigorous analysis and potential lightweight alternatives in the interim.