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controlled quantum secure direct communication with authentication based on four particle cluster state
Zhao Zhezijian 1,Chen Xiubo 2 *
1.Department of Cyberspace Security,Beijing University of Posts and Telecommunications,Beijing 100876;Department of Cyberspace Security,Beijing University of Posts and Telecommunications,Beijing 100876
2.
*Correspondence author
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Funding: none
Opened online: 9 January 2018
Accepted by: none
Citation: Zhao Zhezijian,Chen Xiubo.controlled quantum secure direct communication with authentication based on four particle cluster state[OL]. [ 9 January 2018] http://en.paper.edu.cn/en_releasepaper/content/4743047
 
 
A controlled quantum secure direct communication with authentication protocol using four particle cluster states is presented in this paper. By using identity string, the participants of the communication can authenticate the other communicators.We redesign the authentication method from protocol of Chang et.al[23], a hash function is used to generate a random string in order to guarantee the transmission of the particles, preventing the eavesdropper from stealing the secret message. In our protocol, one particle of the cluster state is used as controller\'s permission and two qubits are used to transmit two classical bit information. At the end of this paper, we discuss the security of our protocol and show that our scheme can against both inside and outside attack.
Keywords:Controlled quantum direct communication;Authentication; Quantum cryptography
 
 
 

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