基于新型结构和单量子比特的高效多方量子秘密共享的密码分析与改进

IF 5.8 2区 物理与天体物理 Q1 OPTICS EPJ Quantum Technology Pub Date : 2024-03-25 DOI:10.1140/epjqt/s40507-024-00235-z
Gan Gao
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引用次数: 0

摘要

在论文(EPJ Quant. Technol. 10:29, 2023)中,Kuo 等人提出了一种基于新型结构和单量子比特的多方量子秘密共享协议。由于不存在纠缠态,该协议比其他使用纠缠特性的量子秘密共享协议更实用。因此,我们研究了所提协议的安全性,发现其中的n方(\(n\geq 4\))秘密共享情况存在安全漏洞,即两个不诚实的代理可以串通起来,在没有其他代理帮助的情况下获取爱丽丝的(部分)秘密。为了克服这个安全漏洞,我们给出了一个改进的协议,并对其进行了安全分析。通过计算,其中三方情况下的量子比特效率等于\(\frac{1}{8}\),高于希勒里等人的协议(Phys.)
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Cryptanalysis and improvement of efficient multiparty quantum secret sharing based on a novel structure and single qubits

In the paper (EPJ Quant. Technol. 10:29, 2023), Kuo et al. proposed a multiparty quantum secret sharing protocol based on a novel structure and single qubits. Owing to the absence of an entanglement state, the proposed protocol is more practical than other quantum secret sharing protocols which use entanglement properties. Therefore, we study the security of the proposed protocol and find there exists a security loophole in the n-party (\(n\geq 4\)) secret sharing case in it, that is, two dishonest agents can collude to obtain (part of) Alice’s secret without the help of the other agents. In order to overcome the security loophole, we give an improved protocol and make a security analysis for it. By calculating, the qubit efficiency of the three-party case in it is equal to \(\frac{1}{8}\), which is higher than that in Hillery et al.’s protocol (Phys. Rev. A 59:1829, 1999).

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来源期刊
EPJ Quantum Technology
EPJ Quantum Technology Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
7.70
自引率
7.50%
发文量
28
审稿时长
71 days
期刊介绍: Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. EPJ Quantum Technology covers theoretical and experimental advances in subjects including but not limited to the following: Quantum measurement, metrology and lithography Quantum complex systems, networks and cellular automata Quantum electromechanical systems Quantum optomechanical systems Quantum machines, engineering and nanorobotics Quantum control theory Quantum information, communication and computation Quantum thermodynamics Quantum metamaterials The effect of Casimir forces on micro- and nano-electromechanical systems Quantum biology Quantum sensing Hybrid quantum systems Quantum simulations.
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