Results 1 to 10 of about 25,650 (293)

Enhanced quantum signature scheme using quantum amplitude amplification operators. [PDF]

open access: yesPLoS ONE, 2021
Quantum signature is the use of the principles of quantum computing to establish a trusted communication between two parties. In this paper, a quantum signature scheme using amplitude amplification techniques will be proposed.
Basma Elias, Ahmed Younes
doaj   +2 more sources

A Quantum Dual-Signature Protocol Based on SNOP States without Trusted Participant

open access: yesEntropy, 2021
Quantum dual-signature means that two signed quantum messages are combined and expected to be sent to two different recipients. A quantum signature requires the cooperation of two verifiers to complete the whole verification process.
Kejia Zhang   +4 more
doaj   +2 more sources

A Verifiable Arbitrated Quantum Signature Scheme Based on Controlled Quantum Teleportation. [PDF]

open access: yesEntropy (Basel), 2022
In this paper, we present a verifiable arbitrated quantum signature scheme based on controlled quantum teleportation. The five-qubit entangled state functions as a quantum channel.
Lu D, Li Z, Yu J, Han Z.
europepmc   +2 more sources

A New Quantum Blind Signature Scheme with BB84-State

open access: yesEntropy, 2019
The blind signature is widely used in cryptography applications because it can prevent the signer from gaining the original message. Owing to the unconditional security, the quantum blind signature is more advantageous than the classical one.
Feng-Lin Chen, Zhi-Hua Wang, Yong-Mo Hu
doaj   +2 more sources

Quantum signatures in the quantum Carnot cycle

open access: yesNew Journal of Physics, 2020
The Carnot cycle combines reversible isothermal and adiabatic strokes to obtain optimal efficiency, at the expense of a vanishing power output. Quantum Carnot-analog cycles are constructed and solved, operating irreversibly with positive power.
Roie Dann, Ronnie Kosloff
doaj   +3 more sources

Sequential double quantum blind signature protocol [PDF]

open access: yesTongxin xuebao, 2015
Considering the fact that both party banks need to sign on the same bill because of the inter-bank E-payment in real life.A sequential double blind signature protocol based on the quantum coherence and quantum entanglement was proposed for the first time.
Hui WANG   +5 more
doaj   +4 more sources

Measurement-Device Independency Analysis of Continuous-Variable Quantum Digital Signature

open access: yesEntropy, 2018
With the practical implementation of continuous-variable quantum cryptographic protocols, security problems resulting from measurement-device loopholes are being given increasing attention. At present, research on measurement-device independency analysis
Tao Shang, Ke Li, Jianwei Liu
doaj   +2 more sources

Quantum Proxy Signature Scheme with Discrete Time Quantum Walks and Quantum One-Time Pad CNOT Operation

open access: yesApplied Sciences, 2020
The quantum proxy signature is one of the most significant formalisms in quantum signatures. We put forward a quantum proxy signature scheme using quantum walk-based teleportation and quantum one-time pad CNOT (QOTP-CNOT) operation, which includes four ...
Yanyan Feng   +4 more
doaj   +2 more sources

Multiparty Quantum Signature Schemes [PDF]

open access: yesQuantum Information and Computation, 2015
Digital signatures are widely used in electronic communications to secure important tasks such as financial transactions, software updates, and legal contracts.
Wallden, Petros   +4 more
core   +3 more sources

Cryptanalysis of a Semi-Quantum Bi-Signature Scheme Based on W States

open access: yesEntropy, 2022
Recently, Zhao et al. proposed a semi-quantum bi-signature (SQBS) scheme based on W states with two quantum signers and just one classical verifier. In this study, we highlight three security issues with Zhao et al.’s SQBS scheme.
Chun-Wei Yang   +3 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy