Lightweight mediated semi-quantum key distribution protocol

被引：23

作者：

Tsai, Chia-Wei ^{[1
]}

Yang, Chun-Wei ^{[2
,3
]}

Lee, Narn-Yih ^{[4
]}

机构：

[1] Natl Taitung Univ, Dept Comp Sci & Informat Engn, Taitung 95092, Taiwan

[2] China Med Univ, Ctr Gen Educ, Taichung 40402, Taiwan

[3] China Med Univ, Coll Humanities & Sci, Taichung 40402, Taiwan

[4] Southern Taiwan Univ Sci & Technol, Dept Comp Sci & Informat Engn, Tainan 71005, Taiwan

来源：

MODERN PHYSICS LETTERS A | 2019年 / 34卷 / 34期

关键词：

Semi-quantum; mediated key distribution protocol; untrusted third party; single photon; Trojan-horse attack; SECURITY; ATTACKS; PROOF;

D O I：

10.1142/S021773231950281X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Classical users can share a secret key with a quantum user by using a semi-quantum key distribution (SQKD) protocol. Allowing two classical users to share a secret key is the objective of the mediated semi-quantum key distribution (MSQKD) protocol. However, the existing MSQKD protocols need a quantum user to assist two classical users in distributing the secret keys, and these protocols require that the classical users be equipped with a Trojan horse photon detector. This reduces the practicability of the MSQKD protocols. Therefore, in this study we propose a lightweight MSQKD, in which the two participants and third party are classical users. Due to the usage of the one-way transmission strategy, the proposed lightweight MSQKD protocol is free from quantum Trojan horse attack. The proposed MSQKD is more practical than the existing MSQKD protocols.

引用

页数：13

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