Quantum Private Comparison Protocol Based on Bell Entangled States

Wen, Liu; Wang, Yongbin; Cui, Wei

doi:10.1088/0253-6102/57/4/11

Cited by 91 publications

(48 citation statements)

References 33 publications

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“…If the error rate is higher than the threshold they preset, he will abort the protocol; otherwise, the TP-Alice quantum channel is secure, and Alice discards the checking particles and continues the next step. It should be noted that sequence S [25]. Since our improvement is similar to Liu et al's protocol, so it can also resist these attacks.…”

Section: The Improvementmentioning

confidence: 79%

“…Since then, with different categories of quantum states, many other QPCE protocols have been proposed [18][19][20][21][22][23][24]. Recently, Liu et al [25] proposed a QPCE protocol based on Bell states. In the protocol, the characteristic of quantum entanglement swapping is utilized to realize the comparison task, and TP is assumed as a semi-honest third party.…”

Section: Introductionmentioning

confidence: 99%

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Cryptanalysis and Improvement of Quantum Private Comparison Protocol Based on Bell Entangled States

Liu¹,

Liu²,

Chen³

et al. 2014

Commun. Theor. Phys.

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Abstract. Recently, Liu et al. [Commun. Theor. Phys. 57, 583, 2012] proposed a quantum private comparison protocol based on entanglement swapping of Bell states, which aims to securely compare the equality of two participants' information with the help of a semi-honest third party (TP). However, this study points out there is a fatal loophole in this protocol, i.e., TP can obtain all of the two participants secret inputs without being detected through making a specific Bell-basis measurement. To fix the problem, a simple solution, which uses one-time eavesdropper checking with decoy photons instead of twice eavesdropper checking with Bell states, is demonstrated. Compared with the original protocol, it also reduces the Bell states consumption and simplifies the steps in the protocol.PACS numbers: 03.65. Ta, 03.67.Dd, 03.67.Lx Keywords: Quantum private comparison, Bell states, Entanglement swapping, TP's measurement attack, ImprovementCryptanalysis and improvement of the quantum private comparison protocol based on Bell entangled states2

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Section: The Improvementmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Cryptanalysis and Improvement of Quantum Private Comparison Protocol Based on Bell Entangled States

Liu¹,

Liu²,

Chen³

et al. 2014

Commun. Theor. Phys.

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“…In the article (Liu et al 2012), the length of useful secrets is L and the every comparison result was leaked to Calvin. Here, we propose a method to solve this problem.…”

Section: Big Data Quantum Private Comparison Scheme With the Intelligmentioning

confidence: 99%

“…QPC) (Liu et al 2012;Chen et al , 2010Xu et al 2012;Tseng et al 2012;Chang et al 2013;Chen and Hwang 2014) as a special branch of SMC were proposed to solve a variant of the millionaire problem. The main function of QPC protocol is to compare the equality of the secret information of two parties privately, without disclosing any actual information.…”

Section: Introductionmentioning

confidence: 99%

“…These secret information of two parties are big data and difficult to ensure safety. Such as a QPC protocol based on Bell state is proposed by Liu et al (2012) as LYW protocol, which mainly utilizes the principle of entanglement swapping (i.e. ES) to compare two bits of information in each round with the help of a semi-honest Calvin, who may try to reveal the private information without colluding with the user.…”

Section: Introductionmentioning

confidence: 99%

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Big data quantum private comparison with the intelligent third party

Tan

Zhang

Jin

2015

J Ambient Intell Human Comput

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Big data is often thought as a large number of virous unstructured forms of data. Expensive intelligent computing engineering techniques of critical systems that are not cost-effective for non-critical systems may sometimes be used as a intelligent protection system. The private comparison is to compare the equality of the secret information of two parties privately, without disclosing any actual information. These secret information of two parties are big data that need to be analysed for comparison privately in critical system. Quantum private comparison is more safer than classic private comparison based on the theory of quantum mechanics. In this paper, a big data quantum private comparison scheme with intelligent third party is proposed. Two distrustful parties Alice and Bob compare the equivalence of big data information by quantum computing with the help of the intelligent robot belonged to a semi-honest third party Calvin. The participants including the intelligent robot are just required having the ability to prepare photons and perform measurement, which makes the presented protocol be more feasible in technique. The transmitted particles is in the anticlockwise order with a circle that make the transferred private information to be more safe. The technique of entanglement swapping makes the comparison be achieved with the help of the intelligent robot. Due to the photon transmission is a one-way distribution, the Trojan horse attack can be automatically avoided. It is secure against the various well-known attacks.

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Bell‐GHZ Measurement‐Device‐Independent Quantum Key Distribution

2021

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In this work, a one‐sided measurement‐device‐independent quantum key distribution protocol that uses Bell and Greenberger–Horne–Zeilinger (GHZ) states is proposed. The protocol considers three parties: Alice and Bob, who will share the key at the end of the protocol; and Charlie, who plays the role of facilitating the key distribution without having access to the key itself. Alice and Charlie are trusted users, while Bob is uncharacterized. The protocol is asymmetrical, meaning that Alice sends one qubit while Bob sends two; this allows Bob to identify himself via a previously assigned ID; if this authentication fails, the key distribution also will.

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Quantum Private Comparison Protocol Based on Bell Entangled States

Cited by 91 publications

References 33 publications

Cryptanalysis and Improvement of Quantum Private Comparison Protocol Based on Bell Entangled States

Cryptanalysis and Improvement of Quantum Private Comparison Protocol Based on Bell Entangled States

Big data quantum private comparison with the intelligent third party

Bell‐GHZ Measurement‐Device‐Independent Quantum Key Distribution

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