The Varieties of Secure Distributed Computation

Rafail Ostrovsky, Moti Young

Pratyusa Mukherjee, Rabindra Kumar Barik

Geospatial fog computing system offers various benefits as a platform for geospatial computing services closer to the end users, including very low latency, good mobility, precise position awareness, and widespread distribution. In recent years, it has grown quickly. Fog nodes' security is susceptible to a number of assaults, including denial of service and resource abuse, because to their widespread distribution, complex network environments, and restricted resource availability. This paper proposes a Quantum Key Distribution (QKD)-based geospatial quantum fog computing environment that offers a symmetric secret key negotiation protocol that can preserve information-theoretic security. In QKD, after being negotiated between any two fog nodes, the secret keys can be given to several users in various locations to maintain forward secrecy and long-term protection. The new geospatial quantum fog computing environment proposed in this work is able to successfully withstand a variety of fog computing assaults and enhances information security.

Gregory Neven, Frank Piessens, Bart De Decker

Namisha Gupta, Divya Punia, Kumar Gautam +2 more

Recent advances in quantum technologies are rapidly pushing the boundaries of computational capabilities, with the promise of significant speedups across a variety of applications. However, building large-scale monolithic quantum processors remains an immense engineering challenge, motivating the pursuit of alternative paradigms to realize practical quantum advantage. One such paradigm is Distributed Quantum Computing (DQC), which interconnects multiple quantum nodes via quantum networks to collectively perform complex computations. While Circuit-Based Quantum Computing (CBQC) has traditionally been the dominant model, Measurement-Based Quantum Computing (MBQC), with its one-way computation framework and pre-shared entangled cluster states, introduces distinctive benefits for distributed architectures. Importantly, within DQC, MBQC offers enhanced security over CBQC by naturally supporting protocols such as Blind Quantum Computation (BQC) and secure delegated processing. This study offers an application-oriented perspective on the role of MBQC in DQC, highlighting concrete industrial use cases alongside key implementation challenges. By bridging theoretical potential with practical deployment considerations, it aims to accelerate progress toward secure and scalable distributed quantum systems.

Yuval Ishai

Pranav Gani, Ross Greer

Methods of eavesdropping and side-channel attacks - physical attacks on cryptosystems - have always been developing to stay in the race against classical and even quantum security protocols. In this paper, we review foundational approaches to quantum security against such attacks. In particular, we examine principles of quantum mechanics which make security protocols such as quantum key distribution and BB84 possible. Further, we describe a variety of side-channel attack configurations and conclude by describing the relevance of these attacks and security measures across modern systems, motivating future research in quantum security.