Vol.65, No.1, 2020, pp.879-896, doi:10.32604/cmc.2020.010042
Device-Independent Quantum Key Distribution Protocol Based on Hyper-Entanglement
  • Yan Chang1, *, Shibin Zhang1, Lili Yan1, Xueyang Li1, Tian Cao1, Qirun Wang2
1 College of Information Security Engineering, Chengdu University of Information Technology, Chengdu, China.
2 School of Engineering and Technology, University of Hertfordshire, Hertford, UK.
* Corresponding Author: Yan Chang. Email: cyttkl@cuit.edu.cn.
Received 06 February 2020; Accepted 03 May 2020; Issue published 23 July 2020
The secure key rate of quantum key distribution (QKD) is greatly reduced because of the untrusted devices. In this paper, to raise the secure key rate of QKD, a device-independent quantum key distribution (DIQKD) protocol is proposed based on hyper-entangled states and Bell inequalities. The security of the protocol is analyzed against the individual attack by an adversary only limited by the no-signaling condition. Based on the formalization of Clauser-Horne Shimony-Holt (CHSH) violation measurement on local correlation, the probability of a secure secret bit is obtained, which is produced by a pair of hyper-entangled particles. By analyzing the secure secret bit, it is proven that, when both the polarization mode and the path mode contains entangledstates, the DIQKD protocol gets a better secure key rate than common Bell states.
Hyper-entangled states, device-independent, QKD, secure key rate.
Cite This Article
Chang, Y., Zhang, S., Yan, L., Li, X., Cao, T. et al. (2020). Device-Independent Quantum Key Distribution Protocol Based on Hyper-Entanglement. CMC-Computers, Materials & Continua, 65(1), 879–896.
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