Results 31 to 40 of about 1,558 (178)

Hierarchical Physical‐Cyber Encryption via Metasurface‐Encoded Holographic Keys

Advanced Science, EarlyView.
ABSTRACT Physical‐layer encryption based on metasurfaces has emerged as a promising alternative to conventional algorithmic cryptography by embedding security into physical processes. However, most existing metasurface‐based encryption schemes operate within single‐stage or static frameworks, where correct physical illumination directly reveals the ...
Zhen Liu, Changhong Dai, Wei Zhu, Ruisheng Yang, Bohan Zhang, Lei Zhang, Bobo Du, Shengxiang Wang, Guangwei Hu   +8 more
wiley   +1 more source

Quantum one-way functions and related cryptographic primitives

New Journal of Physics
Quantum cryptographic primitives beyond key distribution remain a less well understood area of research. In classical cryptography, one-way functions (OWFs) underpin nearly all standard cryptographic protocols, motivating the search for meaningful ...
Georgios M Nikolopoulos
doaj   +1 more source

Reinforced Secure Gossiping Against DoS Attacks in Post-Disaster Scenarios

IEEE Access, 2020
During and after a disaster, the perceived quality of communication networks often becomes remarkably degraded with an increased ratio of packet losses due to physical damages of the networking equipment, disturbance to the radio frequency signals ...
Christian Esposito, Zhongliang Zhao, Jacek Rak   +2 more
doaj   +1 more source

Implementation of a nonlinear transformation of a substitution in the form of elements of a numbering system of a number of factorial sets

Безопасность информационных технологий, 2021
The paper investigates a nonlinear substitution transformation, presented as an element of the number system of factorial sets. This approach takes into account the characteristic features of substitutions and al-lows you to minimize the amount of memory
Alexander P. Martynov, Dmitry B. Nikolaev, Kirill D. Ermakov   +2 more
doaj   +1 more source

Voltage‐Reconfigurable Magneto‐Ionic Nanolayers in Dot Arrays for Probabilistic, Materials‐Engineered Security Primitives

Advanced Science, EarlyView.
A magneto‐ionic security‐by‐materials‐design strategy exploits voltage‐driven N3– migration in selectively contacted FeCoN dots, creating reconfigurable sub‐15 nm ferromagnetic sublayers with deterministic and/or probabilistic (single‐domain↔vortex) states, voltage‐tunable probabilities and fully stochastic orientation/chirality.
Irena Spasojevic, Federica Celegato, Alessandro Magni, Paola Tiberto, Jordi Sort   +4 more
wiley   +1 more source

Quantum Security of Cryptographic Primitives

CoRR, 2017
In dieser Arbeit bezeichnen wir mit der Terminologie Quantensicherheit den Bereich der IT-Sicherheit welcher sich mit dem Anwendungsfall beschäftigt, in dem einer oder mehrere Teilnehmer Zugriff auf Quanten-Hardware haben. Dies umfasst sowohl den Bereich der Post-Quanten Kryptographie (d.h.
openaire   +5 more sources

Quantum cryptographic dynamics: modeling cryptosystems via entropy operators

Academia Quantum
This paper introduces Quantum Cryptographic Dynamics (QCD), a novel theoretical framework that models cryptographic processes through the lens of entropy injection and ejection.
Randy Kuang
doaj   +1 more source

Identity-Based Key Exchange on In-Vehicle Networks: CAN-FD & FlexRay

Sensors, 2019
Security has become critical for in-vehicle networks as they carry safety-critical data from various components, e.g., sensors or actuators, and current research proposals were quick to react with cryptographic protocols designed for in-vehicle buses, e ...
Bogdan Groza, Pal-Stefan Murvay
doaj   +1 more source

Receptogenesis in a Vascularized Robotic Embodiment

Advanced Science, EarlyView.
Functional augmentation of situated robots via ex novo hardware generation extends physical adaptability. Drawing inspiration from open circulatory systems for mass and function redistribution, this study presents a vascularized robotic composite exhibiting receptogenesis ‐ the on‐demand construction of sensors ‐ from internal fluid reserves based on ...
Kadri‐Ann Pankratov, Leonid Zinatullin, Hans Priks, Adele Metsniit, Urmas Johanson, Tarmo Tamm, Alvo Aabloo, Edoardo Sinibaldi, Indrek Must   +8 more
wiley   +1 more source

cryptographic Primitives: Insertions, Examples and Open Problems

Безопасность информационных технологий, 2014
Cryptographic primitives are considered. Each of cryptographic primitives can be the basis for building more complex cryptographic protocol. Examples of insertion of cryptographic primitives are given. The problems arising at the proof of security of the
Stanislav Olegovich Dordzhiev, Oleg Viktorovich Kazarin   +1 more
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