Efficient mediated semi-quantum key distribution

Lingli Chen, Qin Li, Chengdong Liu, Yu Peng and Fang Yu

Physica A: Statistical Mechanics and its Applications, 2021, vol. 582, issue C

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.

Keywords: Semi-quantum key distribution; Quantum key distribution; Quantum cryptography; Quantum information processing (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:582:y:2021:i:c:s0378437121005380

DOI: 10.1016/j.physa.2021.126265

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