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Encrypted control has been extensively studied to ensure the confidentiality of system states and control inputs for networked control systems. This paper presents a computationally efficient encrypted control framework for networked…

Quantum Physics · Physics 2025-12-16 Zihao Ren , Daniel Quevedo , Salah Sukkarieh , Guodong Shi

Information-theoretical security of quantum key distribution (QKD) has been convincingly proven in recent years and remarkable experiments have shown the potential of QKD for real world applications. Due to its unique capability of…

Quantum Physics · Physics 2015-03-26 Marco Lucamarini , James F. Dynes , Bernd Fröhlich , Zhiliang Yuan , Andrew J. Shields

The financial sector faces escalating cyber threats amplified by artificial intelligence (AI) and the advent of quantum computing. AI is being weaponized for sophisticated attacks like deepfakes and AI-driven malware, while quantum…

Cryptography and Security · Computer Science 2025-03-21 Ahmed M. Elmisery , Mirela Sertovic , Andrew Zayin , Paul Watson

This paper presents a practical solution to the problem of limited bandwidth in Quantum Key Distribution (QKD)- secured communication through using rapidly rekeyed Internet Protocol security (IPsec) links. QKD is a cutting-edge security…

Cryptography and Security · Computer Science 2018-01-08 Stefan Marksteiner , Benjamin Rainer , Oliver Maurhart

An adversary copies your encrypted traffic today and waits for a quantum computer to decrypt it later. How exposed are you? We show that the functional form of the answer is not merely a calibration choice -- it is structurally justified by…

Cryptography and Security · Computer Science 2026-05-22 Matheus Rufino , Rafael Duarte Marcelino , Julio Smanioto Garcia

Quantum key distribution (QKD) seeks to provide a method of generating cryptographically-secure keys between remote parties while guaranteeing unconditional security. Implementations of high-dimensional QKD using dispersive-optics (DO-QKD)…

Quantum Physics · Physics 2024-03-15 Ariel Shlosberg , Alex Kwiatkowski , Akira Kyle , Graeme Smith

Recently, low-altitude wireless networks (LAWNs) have emerged as a critical backbone for supporting the low-altitude economy, particularly with the densification of unmanned aerial vehicles (UAVs) and high-altitude platforms (HAPs). To meet…

Cryptography and Security · Computer Science 2025-07-22 Zeeshan Kaleem , Misha Urooj Khan , Ahmad Suleman , Waqas Khalid , Kai-Kit Wong , Chau Yuen

A central assumption in quantum key distribution (QKD) is that Eve has no knowledge about which rounds will be used for parameter estimation or key distillation. Here we show that this assumption is violated for iterative sifting, a sifting…

Quantum Physics · Physics 2016-05-12 Corsin Pfister , Norbert Lütkenhaus , Stephanie Wehner , Patrick J. Coles

Quantum computer is no longer a hypothetical idea. It is the worlds most important technology and there is a race among countries to get supremacy in quantum technology. Its the technology that will reduce the computing time from years to…

Cryptography and Security · Computer Science 2022-04-07 Manish Kumar

The rapid expansion of the Internet of Things (IoT) ecosystem has transformed various sectors but has also introduced significant cybersecurity challenges. Traditional centralized security methods often struggle to balance privacy…

Cryptography and Security · Computer Science 2025-02-18 Milad Rahmati

Data analytics (such as association rule mining and decision tree mining) can discover useful statistical knowledge from a big data set. But protecting the privacy of the data provider and the data user in the process of analytics is a…

Quantum Physics · Physics 2017-02-16 Shenggang Ying , Mingsheng Ying , Yuan Feng

Quantum Key Distribution (QKD) is rapidly transitioning from cutting-edge laboratory research to real-world deployment in established communication networks. Although QKD promises future-proof security, practical challenges stil exist due…

Smart healthcare industry is increasingly relying on Internet of Things (IoT) devices to improve patient care and operational efficiency. However, the cryptographic algorithms that enable fundamental security and are widely used in these…

Cryptography and Security · Computer Science 2026-04-20 Asif Alif , Khondokar Fida Hasan , Basker Palaniswamy , Md. Morshedul Islam

The coherent one-way (COW) quantum key distribution (QKD) is a highly practical quantum communication protocol that is currently deployed in off-the-shelves products. However, despite its simplicity and widespread use, the security of…

Quantum Physics · Physics 2022-12-26 Emilien Lavie , Charles C. -W. Lim

Post-quantum cryptography (PQC) is becoming essential for securing Internet of Things (IoT) and Industrial IoT (IIoT) systems against quantum-enabled adversaries. However, existing evaluation approaches primarily focus on isolated…

Cryptography and Security · Computer Science 2026-01-21 Jonatan Rassekhnia

Quantum data locking is a unique quantum phenomenon that allows a relatively short key to (un)lock an arbitrarily long message encoded in a quantum state, in such a way that an eavesdropper who measures the state but does not know the key…

Quantum Physics · Physics 2014-12-30 Cosmo Lupo , Mark M. Wilde , Seth Lloyd

We suggest that the randomness of the choices of measurement basis by Alice and Bob provides an additional important resource for quantum cryptography. As a specific application, we present a novel protocol for quantum key distribution…

Quantum Physics · Physics 2016-08-16 Hannes R. Böhm , Paul S. Böhm , Markus Aspelmeyer , Časlav Brukner , Anton Zeilinger

The integration of unmanned aerial vehicles (UAVs) into smart agriculture has enabled real-time monitoring, data collection, and automated farming operations. However, the high mobility, decentralized nature, and low-power communication of…

Cryptography and Security · Computer Science 2025-05-27 Taimoor Ahmad

Quantum communication networks are connected by various devices to achieve communication or distributed computing for users in remote locations. In order to solve the problem of generating temporary session key for secure communication in…

Quantum Physics · Physics 2023-04-03 Li-Zhen Gao , Xin Zhang , Song Lin , Ning Wang , Gong-De Guo

Quantum databases open an exciting new frontier in data management by offering privacy guarantees that classical systems cannot match. Traditional engines tackle user privacy, which hides the records being queried, or data privacy, which…

Quantum Physics · Physics 2025-11-25 Giancarlo Gatti , Floris Geerts , Rihan Hai