Applied Cryptography

A special issue of Journal of Cybersecurity and Privacy (ISSN 2624-800X). This special issue belongs to the section "Cryptography and Cryptology".

Deadline for manuscript submissions: 20 February 2026 | Viewed by 1726

Special Issue Editors


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Guest Editor
Surrey Centre for Cyber Security, Department of Computer Science, University of Surrey, Guildford, Surrey GU2 7XH, UK
Interests: applied cryptography; network security; blockchain technologies; privacy-preserving technologies

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Guest Editor
Department of Electrical Engineering and Computer Science, Howard University, Washington, DC 20059, USA
Interests: wireless networks; cyber security; cyber physical systems; Internet of Things; big data analytics; wireless virtualization; software-defined networks; smart grid systems security; and vehicular/wireless ad-hoc networks
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Special Issue Information

Dear Colleagues,

Cryptography is essential for establishing trust and ensuring security in the digital world. With the enormous amount of data produced daily, we must guarantee its security and privacy. Moreover, applied cryptography provides a collection of cryptographic primitives to ensure data security and privacy for real applications. This Special Issue aims to investigate new cryptographic primitives for data security and privacy and their applications.

We invite submissions for this Special Issue, focusing on cryptographic algorithms, technologies, and practices. Specifically, we are interested in research related to IoT security, quantum cryptography, and cryptographic protocols. Possible topics include, but are not limited to, the following:

Dr. Yangguang Tian
Prof. Dr. Danda B. Rawat
Guest Editors

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Keywords

  • cryptography and cryptanalysis
  • applied cryptography
  • cryptography for iot and blockchains
  • cryptography for secure computing
  • cryptography for data protection
  • privacy-preserving technologies

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Published Papers (1 paper)

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Research

27 pages, 1146 KB  
Article
Attacking Tropical Stickel Protocol by MILP and Heuristic Optimization Techniques
by Sulaiman Alhussaini and Sergeĭ Sergeev
J. Cybersecur. Priv. 2025, 5(4), 82; https://doi.org/10.3390/jcp5040082 - 3 Oct 2025
Viewed by 760
Abstract
Known attacks on the tropical implementation of Stickel protocol involve finding minimal covers for a certain covering problem, and this leads to an exponential growth in the worst case time required to recover the secret key as the used polynomial degree increases. The [...] Read more.
Known attacks on the tropical implementation of Stickel protocol involve finding minimal covers for a certain covering problem, and this leads to an exponential growth in the worst case time required to recover the secret key as the used polynomial degree increases. The computational inefficiency of this attack is also observed in practice, unless the number of explored covers is limited, on the expense of the success rate of the attack. Consequently, it can be argued that Alice and Bob can still repel these attacks on tropical Stickel protocol by utilizing very high polynomial degrees, a feasible approach due to the efficiency of tropical operations. The same is true for the implementation of Stickel protocol over some other semirings with idempotent addition (such as the max–min or digital semiring). In this paper, we propose alternative methods to attack the Stickel protocols that avoid solving the covering problem. These methods involve framing the attacks as a mixed integer linear programming (MILP) problem or applying certain heuristic global optimization techniques. We also include a number of numerical experiments to analyze the success rate and the time required to execute the suggested attacks in practice. Full article
(This article belongs to the Special Issue Applied Cryptography)
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