Results 41 to 50 of about 492 (119)

Analysis of Atom against quantum attacks

open access: yesIET Quantum Communication
A significant amount of study is being done to review the security promises made for the various ciphers now in use as a result of the development of quantum computing technology.
Ravi Anand, Rimpa Nandi, Takanori Isobe
doaj   +1 more source

Privacy-preserving Quantum Sealed-bid Auction Based on Grover’s Search Algorithm

open access: yesScientific Reports, 2019
Sealed-bid auction is an important tool in modern economic especially concerned with networks. However, the bidders still lack the privacy protection in previously proposed sealed-bid auction schemes. In this paper, we focus on how to further protect the
Run-hua Shi, Mingwu Zhang
doaj   +1 more source

Investigating an amplitude amplification-based optimization algorithm for model predictive control

open access: yesDigital Chemical Engineering
The potential for greater algorithmic efficiency for some problems on quantum computers compared to classical computers is appealing in many fields including, for example, the process systems engineering field.
Kip Nieman   +4 more
doaj   +1 more source

Review Quantum Circuit Synthesis for Grover’s Algorithm Oracle

open access: yesAlgorithms
The search for information in a system has been a continuous problem for a computer. This has resulted in the construction of a set of classical algorithms that can search for a set of data.
Miguel A. Naranjo, Luis A. Fletscher
doaj   +1 more source

Deriving Grover's lower bound from simple physical principles

open access: yesNew Journal of Physics, 2016
Grover's algorithm constitutes the optimal quantum solution to the search problem and provides a quadratic speed-up over all possible classical search algorithms.
Ciarán M Lee, John H Selby
doaj   +1 more source

Quantum Computing Concepts with Deutsch Jozsa Algorithm

open access: yesJOIV: International Journal on Informatics Visualization, 2019
In this paper, we briefly review the basic concepts of quantum computation,  entanglement,  quantum cryptography and quantum fourier  transform.   Quantum algorithms like Deutsch Jozsa, Shor’s   factorization and Grover’s data search are developed using ...
Poornima Aradyamath   +2 more
doaj   +1 more source

A Quantum Algorithm for the Commutativity of Finite Dimensional Algebras

open access: yesIEEE Access, 2019
A quantum procedure for testing the commutativity of a finite dimensional algebra is introduced. This algorithm, based on Grover's quantum search, is shown to provide a quadratic speed-up (when the number of queries to the algebra multiplication ...
Elias F. Combarro   +2 more
doaj   +1 more source

Quantum Attacks on MIBS Block Cipher Based on Bernstein–Vazirani Algorithm

open access: yesMathematics
Because of the substantial progress in quantum computing technology, the safety of traditional cryptologic schemes is facing serious challenges. In this study, we explore the quantum safety of the lightweight cipher MIBS and propose quantum key-recovery ...
Huiqin Xie   +4 more
doaj   +1 more source

Noise-tolerant Grover's algorithm via success-probability prediction

open access: yesPhysical Review Research
We present theoretical and experimental studies on efficient quantum search with noise. We propose a noise-tolerant method that significantly reduces the running time and exponentially improves the error threshold with number of qubits for Grover's ...
Jian Leng, Fan Yang, Xiang-Bin Wang
doaj   +1 more source

Big Step: A fast quantum algorithm for nonce discovery in Proof-of-Work blockchains

open access: yesICT Express
Since the emergence of quantum computing, Grover’s algorithm has been widely studied as a method to attack Proof-of-Work (PoW) blockchains. However, it requires multiple oracle and diffuser iterations, causing high computational overhead and ancilla ...
Younghoon Park
doaj   +1 more source

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