Controlled Quantum Dialogue with Five-Qubit Entangled States

2021 ◽  
Author(s):  
Hong-Ming Pan
Keyword(s):  
Quantum Dialogue ◽  
Entangled States

Information leakage in quantum dialogue by using the two-qutrit entangled states

2014 ◽  
Vol 28 (12) ◽  
pp. 1450094 ◽  
Author(s):  
Gan Gao
Keyword(s):  
Information Leakage ◽  
Quantum Dialogue ◽  
Entangled States

In this paper [Mod. Phys. Lett. B23 (2009) 2993], Zhang and Zhan proposed a quantum dialogue protocol by using the two-qutrit entangled states. We study the security of the protocol and find that it is not secure. The eavesdropper can obtain half of secret messages without performing any attack. In other words, their quantum dialogue protocol has the drawback of information leakage.

Two authenticated quantum dialogue protocols based on three-particle entangled states

2018 ◽  
Vol 17 (9) ◽  
Author(s):  
Jia-Min Qi ◽  
Gang Xu ◽  
Xiu-Bo Chen ◽  
Tian-Yin Wang ◽  
Xiao-Qiu Cai ◽  
...  
Keyword(s):  
Quantum Dialogue ◽  
Entangled States

A Ping-Pong Quantum Dialogue Scheme Using Genuine Four-Particle Entangled States

2011 ◽  
Vol 50 (10) ◽  
pp. 3089-3095 ◽  
Author(s):  
Gan Gao ◽  
Ming Fang ◽  
Yue Wang ◽  
Da-Jin Zang
Keyword(s):  
Quantum Dialogue ◽  
Entangled States ◽  
Ping Pong

QUANTUM DIALOGUE BY USING THE TWO-QUTRIT ENTANGLED STATES

2009 ◽  
Vol 23 (25) ◽  
pp. 2993-2998 ◽  
Author(s):  
LING-LING ZHANG ◽  
YOU-BANG ZHAN
Keyword(s):  
Quantum Dialogue ◽  
Entangled States ◽  
Entangled State ◽  
Classical Communication ◽  
Bell Basis

A protocol for quantum dialogue is proposed to exchange directly the communicators' secret messages by using the two-qutrit entangled state. In this protocol, the security of communication is ensured by the secret transmitting order of qutrits. It is shown that two legitimate users can directly transmit the secret messages by generalized Bell-basis measurement and classical communication.

Authenticated quantum dialogue protocol based on four-particle entangled states

2021 ◽  
pp. 2150189
Author(s):  
Zhou-jing Feng ◽  
Liang Tang ◽  
Yi Xiang ◽  
Zhi-wen Mo ◽  
Ming-qiang Bai
Keyword(s):  
Hash Function ◽  
Random Number ◽  
Quantum Circuit ◽  
Identity Authentication ◽  
Quantum Dialogue ◽  
Entangled States ◽  
Entangled State ◽  
Preparation Process ◽  
Nonlocal Correlation ◽  
Correlation Properties

Many protocols of quantum dialogue are based on the assumption that the user is legitimate. In fact, the assumption is ideal. Therefore, it is necessary to identify whether the user is legitimate or not. In this paper, by adding identity authentication, a quantum dialogue protocol is proposed based on four-particle entangled states. For preparing the entangled state, we first give the description of the preparation process and draw the diagram of the prepared quantum circuit. Next, the nonlocal correlation properties of the entangled state are investigated. By associating identity authentication with channel security detection, the consumption of quantum resources is reduced to a certain extent. Furthermore, a random number r and a one-way hash function are added to increase the security of the protocol. In the end, compared with other protocols, our protocol has an improvement in efficiency.

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