Results 1 to 10 of about 490,317 (122)

Physical One‐Way Functions for Decentralized Consensus Via Proof of Physical Work [PDF]

Advanced Science
Decentralized consensus on the state of the Bitcoin blockchain is ensured by proof of work. It relies on digital one‐way functions and is associated with an enormous environmental impact. This paper conceptualizes a physical one‐way function that aims to
Marvin Winkler, Catharina Peither, Simon Petrick, Lothar Seidemann, Holger Jelich, Frank Kleine Jäger, Jörn Müller‐Quade, Alexander Colsmann, Hermann Nirschl, Frank Rhein   +9 more
doaj   +6 more sources

Subjective Assessment of Physical and Mental Fatigue Does Not Predict Objective Decline of Cognitive Functions After Ultra‐Endurance Race (Veloreality) [PDF]

European Journal of Sport Science
Although acute exercise can have positive effects on individual's cognitive functioning, performing ultra‐endurance race can diminish these benefits. No previous studies have examined if cognitive decline can be estimated by subjective perception; thus ...
Diana Lismane, Deina Vilite, Jelena Raudeniece, Linda Laizane, Gita Gersone, Ilze Barone, Ilze Justamente, Kristiana Kovtuna, Edmunds Vanags, Bart Roelands, Maksims Zolovs, Dace Reihmane   +11 more
doaj   +2 more sources

2D physically unclonable functions of the arbiter type

Informatika, 2023
Objectives. The problem of constructing a new class of physically unclonable functions of the arbiter type (APUF) is being solved, based on the difference in delay times for the inputs of numerous modifications of the base element, due to both an ...
V. N. Yarmolik, A. A. Ivaniuk
doaj   +1 more source

Physically unclonable functions with controlled propagation delay

Informatika, 2022
O b j e c t i v e s. The problem of constructing a new class of physically uncloneable functions (PUF) based on controlling the signal propagation delay through the elements lying on the path of its propagation is being solved.
V. N. Yarmolik, A. A. Ivaniuk, N. N. Shynkevich   +2 more
doaj   +1 more source

Noncoherent Massive MIMO With Embedded One-Way Function Physical Layer Security

IEEE Transactions on Information Forensics and Security, 2023
We propose a novel physical layer security scheme that exploits an optimization method as a one-way function. The proposed scheme builds on nonsquare differential multiple-input multiple-output (MIMO), which is capable of noncoherent detection even in massive MIMO scenarios and thus resilient against risky pilot insertion and pilot contamination ...
Yuma Katsuki, Giuseppe Thadeu Freitas de Abreu, Koji Ishibashi, Naoki Ishikawa   +3 more
openaire   +2 more sources

Two Quantum Proxy Blind Signature Schemes Based on Controlled Quantum Teleportation

Entropy, 2022
We present a scheme for teleporting an unknown, two-particle entangled state with a message from a sender (Alice) to a receiver (Bob) via a six-particle entangled channel.
Qiming Luo, Tinggui Zhang, Xiaofen Huang, Naihuan Jing   +3 more
doaj   +1 more source

Physical One-Way Functions [PDF]

Science, 2002
Modern cryptographic practice rests on the use of one-way functions, which are easy to evaluate but difficult to invert. Unfortunately, commonly used one-way functions are either based on unproven conjectures or have known vulnerabilities. We show that instead of relying on number theory, the mesoscopic physics of coherent transport through a ...
Ravikanth, Pappu, Ben, Recht, Jason, Taylor, Neil, Gershenfeld   +3 more
openaire   +2 more sources

Behavioral and Physical Unclonable Functions (BPUFs): SRAM Example

IEEE Access, 2021
Physical Unclonable Functions (PUFs) have gained a great interest for their capability to identify devices uniquely and to be a lightweight primitive in cryptographic protocols.
Miguel A. Prada-Delgado, Iluminada Baturone   +1 more
doaj   +1 more source

Measuring Process via Sampling of Signals, and Functions with Attributes [PDF]

International Journal of Electronics and Telecommunications, 2020
In this paper, it has been shown that any measuring process can be modeled as a process of sampling of signals. Also, a notion of a special kind of functions, called here functions with attributes, has been introduced.
Andrzej Borys
doaj   +1 more source

Functions of a Monograph as a Document in Scholarly Communications

Библиосфера, 2022
The article considers functions of a monograph within the scholarly communication. They are studied via document that may have perceptive, nominative, informative, signative, sintactive, temporal, pragmatic and material (physical) elements.
M. C. Kuular
doaj   +1 more source