Comment on “controlled quantum secure direct communication with authentication protocol based on five-particle cluster state and classical XOR operation"

2021 ◽  
Vol 20 (10) ◽  
Author(s):  
Zhi-Hao Liu ◽  
Han-Wu Chen
Keyword(s):  
Cluster State ◽  
Quantum Secure Direct Communication ◽  
Authentication Protocol ◽  
Particle Cluster ◽  
Direct Communication ◽  
Xor Operation

An efficient controlled quantum secure direct communication and authentication by using four particle cluster states

2017 ◽  
Vol 15 (01) ◽  
pp. 1750002 ◽  
Author(s):  
Milad Nanvakenari ◽  
Monireh Houshmand
Keyword(s):  
Cluster State ◽  
Quantum Secure Direct Communication ◽  
Identity Authentication ◽  
Secret Message ◽  
Particle Cluster ◽  
Cluster States ◽  
Present Scheme ◽  
Direct Communication ◽  
Eavesdropping Detection ◽  
Base Identity

In this paper, a three-party controlled quantum secure direct communication and authentication (QSDCA) protocol is proposed by using four particle cluster states via a quantum one-time pad and local unitary operations. In the present scheme, only under the permission of the controller, the sender and the receiver can implement secure direct communication successfully. But under any circumstances, Charlie cannot obtain the secret message. Eavesdropping detection and identity authentication are achieved with the help of the previously shared reusable base identity strings of users. This protocol is unconditionally secure in both ideal and practical noisy cases. In one transmission, a qubit of each four particle cluster state is used as controller’s permission and the same qubit with another qubit are used to recover two classical bits of information. In the proposed scheme, the efficiency is improved compared with the previous works.

A new controlled quantum secure direct communication protocol based on a four-qubit cluster state

2014 ◽  
Vol 28 (24) ◽  
pp. 1450194 ◽  
Author(s):  
Meiling Wang ◽  
Wenping Ma ◽  
Dongsu Shen ◽  
Xunru Yin
Keyword(s):  
Quantum Channel ◽  
Quantum Teleportation ◽  
Communication Protocol ◽  
Cluster State ◽  
Security Analysis ◽  
Quantum Secure Direct Communication ◽  
Secret Message ◽  
Particle Cluster ◽  
Controlled Quantum Teleportation ◽  
Direct Communication

A new controlled quantum secure direct communication (CQSDC) protocol is presented by using a four-particle cluster state as quantum channel and the physical characteristics of controlled quantum teleportation to implement the transmission and the control. In this scheme, the receiver can receive the secret message from the sender and recover the secret message under the permission of the controller. According to the security analysis, the communication is secure against both participant and outside attacks, so this CQSDC protocol is secure and feasible.

Quantum secure direct communication based on four-particle cluster state grouping

2019 ◽  
Vol 60 ◽  
pp. 248-254
Author(s):  
Zhengwen Cao ◽  
Dan Song ◽  
Geng Chai ◽  
Chen He ◽  
Guang Zhao
Keyword(s):  
Cluster State ◽  
Quantum Secure Direct Communication ◽  
Particle Cluster ◽  
Direct Communication

A NEW DETECTION STRATEGY FOR TWO-STEP QSDC PROTOCOL BASED ON THE FIVE-PARTICLE CLUSTER STATE

2013 ◽  
Vol 11 (07) ◽  
pp. 1350066
Author(s):  
JIAN LI ◽  
LINGYUN LI ◽  
SICONG CHEN ◽  
XUDONG LIU
Keyword(s):  
Quantum Key Distribution ◽  
Detection Efficiency ◽  
Cluster State ◽  
Quantum Secure Direct Communication ◽  
Theoretical Method ◽  
Particle Cluster ◽  
Direct Communication ◽  
Detection Strategy ◽  
New Strategy ◽  
Detection Strategies

Detection efficiency of a quantum secure direct communication (QSDC) protocol is crucial. Therefore, it is necessary to improve the security of these protocols on the basis of new detection strategies. In this paper, a new strategy based on the five-particle cluster state is proposed, and applied to the two-step QSDC protocol. Moreover, information theoretical method and numerical analysis is applied to analyze the security of the improved protocol. If Eve intends to eavesdrop all of the information, the probability of being detected reaches up to 7/8, whereas the same is 0.5 in the original protocol. It is concluded that using the new detection strategy in the two-step QSDC protocol is more secure than using the original protocol when the quantum key distribution (QKD) protocol is considered.

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