Results 1 to 10 of about 226,911 (338)

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

PLoS 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 [PDF]

Entropy, 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, Xu Zhao, Long Zhang, Guojing Tian, Tingting Song   +4 more
doaj   +2 more sources

An arbitrated quantum signature scheme [PDF]

Physical Review A, 2001
The general principle for a quantum signature scheme is proposed and investigated based on ideas from classical signature schemes and quantum cryptography.
A. Barenco, A. Kent, A.K. Ekert, B. Schumacher, C.H. Bennett, C.H. Bennett, Christoph H. Keitel, D. Bouwmeester, D. Greenberger, G. Zeng, Guihua Zeng, M. Hillery, P.G. Kwiat, P.W. Shor, S. Bose, S. Wiesner, W. Tittel, W. Tittel, W.T. Buttler   +18 more
core   +6 more sources

Quantum signatures in the quantum Carnot cycle

New 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

Logarithmic-Size Post-Quantum Linkable Ring Signatures Based on Aggregation Operations [PDF]

Entropy
Linkable ring signatures are a type of ring signature scheme that can protect the anonymity of signers while allowing the public to verify whether the same signer has signed the same message multiple times.
Minghui Zheng, Shicheng Huang, Deju Kong, Xing Fu, Qiancheng Yao, Wenyi Hou   +5 more
doaj   +2 more sources

Unconditionally Secure Quantum Signatures [PDF]

Entropy, 2015
Signature schemes, proposed in 1976 by Diffie and Hellman, have become ubiquitous across modern communications. They allow for the exchange of messages from one sender to multiple recipients, with the guarantees that messages cannot be forged or tampered
Ryan Amiri, Erika Andersson
doaj   +3 more sources

A Quantum Proxy Signature Scheme Without Restrictions on the Identity and Number of Verifiers [PDF]

Entropy
Quantum digital signatures (QDS) establish a framework for information-theoretically secure authentication in quantum networks. As a specialized extension of QDS, quantum proxy signatures facilitate secure delegation of signing privileges in distributed ...
Siyu Xiong
doaj   +2 more sources

Dynamical Generation of Spacetime Signature by Massive Quantum Fields on a Topologically Non-Trivial Background [PDF]

, 1994
The effective potential for a dynamical Wick field (dynamical signature) induced by the quantum effects of massive fields on a topologically non-trivial $D$ dimensional background is considered.
August Romeo, Brill D, Carlini A, Carlini A, Dereli T, Dirac P A M, Dirac P A M, Dirac P A M, Dirac P A M, Elizalde E, Elizalde E, Elizalde E, Ellis G F R, Ellis G F R, Geroch R P, Hawking S W, Hawking S W, Kundt W, Linde A D, Robin W Tucker, Sakharov A D, Sergei D Odintsov, Vilenkin A, Önder M   +23 more
core   +2 more sources

Quantum Digital Signature Using Entangled States for Network [PDF]

Entropy
We propose an entanglement-based quantum digital signature (QDS) protocol optimized for quantum networks. The protocol follows the Lamport-inspired QDS paradigm but eliminates QKD post-processing by signing and verifying with raw conclusive keys, thereby
Changho Hong, Youn-Chang Jeong, Osung Kwon, Se-Wan Ji   +3 more
doaj   +2 more sources

Digital Signatures with Quantum Candies [PDF]

Entropy, 2022
Quantum candies (qandies) represent a type of pedagogical simple model that describes many concepts from quantum information processing (QIP) intuitively without the need to understand or make use of superpositions and without the need of using complex algebra. One of the topics in quantum cryptography that has gained research attention in recent years
Tal Mor, Roman Shapira, Guy Shemesh
openaire   +4 more sources