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IEEE Open Journal of the Communications Society

Future-Proofing Security for UAVs With Post-Quantum Cryptography: A Review

Muhammad Asghar Khan, Shumaila Javaid, Syed Agha Hassnain Mohsan, Muhammad Tanveer, Insaf Ullah

Published Jan 1, 2024• 67 citations
Publisher

Abstract

Unmanned Aerial Vehicles (UAVs), commonly known as drones, are increasingly being employed across a broad spectrum of applications, ranging from military operations to commercial purposes. However, as UAVs become more integrated into everyday life, security and privacy concerns are similarly escalating due to vulnerabilities arising from operating on open wireless channels and having limited onboard computational resources. Moreover, with the emergence of quantum computers, conventional cryptographic methods that ensure the security and privacy of UAV communications are at severe risk. These risks encompass the possibility of unauthorized access, breaches of data, and cyber-physical attacks that jeopardize the integrity, confidentiality, and availability of UAV operations. Quantum computers are expected to break the conventional cryptography methods, such as symmetric and asymmetric schemes, with the support of Grover’s and Shor’s algorithms, respectively. Consequently, traditional cryptographic algorithms must give way to quantum-resistant algorithms, referred to as Post-Quantum Cryptography (PQC) algorithms. Although researchers actively develop, test, and standardize new PQC algorithms, the threat persists despite the progress made through these consistent efforts. This review article first examines the security and privacy landscape, including threats and requirements of UAVs. This article also discusses PQC and various PQC families and the status of the NIST’s implementation and standardization process. Lastly, we explore challenges and future directions in implementing PQC for UAVs.

DOI
10.1109/ojcoms.2024.3486649

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Unmanned Aerial Vehicles (UAVs), commonly known as drones, are increasingly being employed across a broad spectrum of applications, ranging from military operations to commercial purposes. However, as UAVs become more integrated into everyday life, security and privacy concerns are similarly escalating due to vulnerabilities arising from operating on open wireless channels and having limited onboard computational resources. Moreover, with the emergence of quantum computers, conventional cryptographic methods that ensure the security and privacy of UAV communications are at severe risk. These risks encompass the possibility of unauthorized access, breaches of data, and cyber-physical attacks that jeopardize the integrity, confidentiality, and availability of UAV operations. Quantum computers are expected to break the conventional cryptography methods, such as symmetric and asymmetric schemes, with the support of Grover’s and Shor’s algorithms, respectively. Consequently, traditional cryptographic algorithms must give way to quantum-resistant algorithms, referred to as Post-Quantum Cryptography (PQC) algorithms. Although researchers actively develop, test, and standardize new PQC algorithms, the threat persists despite the progress made through these consistent efforts. This review article first examines the security and privacy landscape, including threats and requirements of UAVs. This article also discusses PQC and various PQC families and the status of the NIST’s implementation and standardization process. Lastly, we explore challenges and future directions in implementing PQC for UAVs.
Unmanned Aerial Vehicles (UAVs) have gone from single platforms that were remotely piloted to fully networked, autonomous cyber-physical systems that operate in the civilian, industrial and defense arenas. Their increasing reliance on wireless communication for command and control, cooperative sensing, distributed decision-making and swarm coordination has raised the level of communication security to the point where it has become a mission-critical requirement. Contemporary UAV security architectures are much based on classical public-key–based cryptography (RSA and elliptic are the most well-known) whose security assumptions become fundamentally vulnerable against the presence of large-scale quantum computing. This chapter gives a comprehensive and future-oriented discussion about post-quantum cryptography (PQC)-based security models for UAVs communication and information exchange networks. Quantum resistance should be applied not only at the algorithmic level but across the whole UAV communications trust stack, which is the main argument. Part I set the conceptual and technical ground by affecting a short range of the improvement of UAV communication systems, in articulating a system quantum-era threat model and giving a motivation for mission-adaptive, cross-layer security architectures. The discussion makes the long-term confidentiality, survivability of the system and continuing operation more robust, and the security of UAV with PQC enabled is no longer speculative, but is considered a strategic requirement.
The first comprehensive framework for deploying NIST-standardized post-quantum cryptography in military UAV systems, bridging the critical gap between theoretical PQC algorithms and practical implementation on resource-constrained drone platforms. We provide rigorous mathematical security proofs for lattice-based schemes (Kyber, Dilithium, Falcon, SPHINCS+) tailored to MAVLink protocol requirements, extensive performance benchmarking demonstrating <1% operational overhead on embedded military hardware, and four complete implementation architectures with working code. Our NATO-compliant security frameworks integrate STANAG requirements with PQC mandates—addressing a gap in existing civilian-focused literature. We validate our approach through an MQ-9 Reaper retrofit case study achieving zero mission degradation, providing the defense community with an actionable roadmap for transitioning military UAV fleets to quantum resistance before cryptographically-relevant quantum computers emerge (projected 2028-2033).
Because of the abrupt increase in demand for security, researchers have developed immediate safety solutions that outperform state-of-the-art solutions. Data security was first sought for during the Spartan period. These days, efforts are being made to broaden this area of study by challenging the status quo and creating novel algorithms that outperform their weaker predecessors. Unmanned aerial vehicles, or UAVs, are widely used in a variety of industries, including agriculture, the military, healthcare, monitoring and surveillance, and many more, because of their svelte designs and adaptable mobility. In this post, we go over the significance of drone technology as well as its growth and demand. The study also discusses the current state of security concerns in real-time settings and how quantum cryptography outperforms conventional methods in protecting data. This inspires us to offer an overview of quantum cryptography's significance, function, and advantages in protecting UAV communications that go beyond 5G networks. Additionally, a unique layered architectural approach based on quantum cryptography is suggested to ensure excellent data security and effective transmission. A case study on the Internet of Military Things' implementation in the battlefield is also included in this presentation. The latency, security, and dependability of the suggested case study system are taken into account while assessing its performance.
The advent of quantum computing poses a significant threat to current cryptographic systems, particularly public-key algorithms such as RSA and ECC, which are vulnerable to quantum attacks like Shor's algorithm. Post-Quantum Cryptography (PQC) aims to develop and standardize quantum-resistant cryptographic algorithms to secure digital communications in the quantum era. This paper examines the current landscape of PQC, focusing on the evaluation and standardization efforts led by organizations such as the National Institute of Standards and Technology (NIST). We analyze the major families of quantum-resistant algorithms, including lattice-based, hash-based, code-based, multivariate, and isogeny-based cryptography, discussing their security guarantees, performance trade-offs, and implementation challenges. Furthermore, we review NIST's PQC standardization process, highlighting selected finalists and alternate candidates, and explore the ongoing transition challenges in adopting these algorithms across industries. Finally, we discuss future directions for PQC research, including hybrid cryptographic systems and the need for continued cryptanalysis to ensure long-term security. This work provides a comprehensive overview of the progress and challenges in deploying quantum-resistant cryptography to safeguard against emerging quantum threats.
Secure communication is vital for unmanned aerial vehicle (UAV) operations, where ensuring data integrity and secrecy is essential. The distinctive challenges in UAV communication UAV communication and the evolving quantum computing field heighten the vulnerabilities of traditional cryptographic methods. Quantum cryptography quantum cryptography offers a promising solution by leveraging quantum mechanics to establish provably secure channels. This chapter provides a comprehensive overview of quantum cryptography quantum cryptography in UAV communications, covering fundamental concepts of quantum mechanics relevant to cryptography. It explores protocols like quantum key distribution (QKD QKD ), quantum secure direct communication (QSDC), and quantum teleportation, quantum teleportation discussing their applicability and limitations in UAV networks. Additionally, the chapter discusses how quantum communication can be effectively utilized for long-range UAV communication. Furthermore, it delves into implementing quantum cryptography-as-a-service for UAVs, presenting real-world case studies and outlining future directions and challenges. Serving as a roadmap for integrating quantum cryptography, this chapter ensures robust security in UAV operations against evolving threats.
Current cryptographic systems, heavily reliant on classical algorithms, are increasingly vulnerable to the formidable capabilities of quantum computing. Notably, quantum algorithms such as Shor’s and Grover’s pose profound threats by accelerating decryption processes, which could soon make existing cryptosystems ineffective. This paper stresses the critical need and complexity of shifting to Post-Quantum Cryptography (PQC) to safeguard encrypted communications against these emerging quantum threats. It outlines the timeline of the National Institute of Standards and Technology’s (NIST) efforts in standardizing PQC, elucidating the significant challenges and the essential nature of adopting these new standards. While NIST provides structured guidance, transitioning to PQC presents substantial risks and difficulties, particularly in terms of organizational adaptation and the technical overhaul required. The discourse further explores the tangible implications of quantum advancements on both symmetric and asymmetric key cryptography, highlighting the potential vulnerabilities and the increased risk of security breaches. The paper underscores the imperative for immediate action in initiating the transition towards robust PQC systems, given the rapid development and anticipated deployment of quantum computing technologies capable of decrypting currently secure information. This transition is not merely a technical upgrade but a crucial strategic move to preemptively counteract quantum threats, ensuring the continued confidentiality and integrity of sensitive data across various sectors.