Quantum Safe Internet-of-Things (IoT)

The promise of scalable quantum computing is causing major upheaval in the domain of cryptography and security. In this perspective paper, we review the progress towards the realization of large-scale quantum computing with the corresponding impact on developing Quantum Safe Internet-of-Things (IoT). We first summarize the imminent threats from a quantum-adversary towards existing cryptographic primitives. To address these challenges, there is a consolidated effort towards the standardization of new cryptographic primitives, namely Post-Quantum Cryptography (PQC). We discuss the underlying mathematical problems that define different classes of PQC candidates, and then present a thorough analysis of the implementation and robustness challenges of porting PQC to constrained IoT platforms. This perspective is juxtaposed with discussions on IoT standards, along with a path for migration to quantum safe domain.