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Efficient mediated semi-quantum key distribution

Author

Listed:
  • Chen, Lingli
  • Li, Qin
  • Liu, Chengdong
  • Peng, Yu
  • Yu, Fang

Abstract

Mediated semi-quantum key distribution (MSQKD) allows two “classical” participants to establish a secret key with the help of an untrusted quantum third party (TP). In all existing MSQKD protocols, the quantum capability required by TP is high and thus it needs much cost in a real implementation. In this paper, we propose an efficient MSQKD protocol, where TP only needs to prepare and measure qubits in the X basis and two “classical” participants just have the ability to prepare and measure qubits in the Z basis. Compared with other similar MSQKD protocols, the proposed protocol reduces the capability requirements of TP without sacrificing the qubit efficiency.

Suggested Citation

  • Chen, Lingli & Li, Qin & Liu, Chengdong & Peng, Yu & Yu, Fang, 2021. "Efficient mediated semi-quantum key distribution," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 582(C).
    • Handle: RePEc:eee:phsmap:v:582:y:2021:i:c:s0378437121005380
    DOI: 10.1016/j.physa.2021.126265
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    References listed on IDEAS

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    1. Lai, Hong & Pieprzyk, Josef & Orgun, Mehmet A., 2020. "Novel quantum key distribution with shift operations based on Fibonacci and Lucas valued orbital angular momentum entangled states," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 554(C).
    2. Frédéric Grosshans & Gilles Van Assche & Jérôme Wenger & Rosa Brouri & Nicolas J. Cerf & Philippe Grangier, 2003. "Quantum key distribution using gaussian-modulated coherent states," Nature, Nature, vol. 421(6920), pages 238-241, January.
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    Cited by:

    1. Cai, Xiao-Qiu & Wang, Tian-Yin & Wei, Chun-Yan & Gao, Fei, 2022. "Cryptanalysis of quantum digital signature for the access control of sensitive data," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 593(C).
    2. Cai, Xiao-Qiu & Liu, Zi-Fan & Wei, Chun-Yan & Wang, Tian-Yin, 2022. "Long distance measurement-device-independent three-party quantum key agreement," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 607(C).

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