Security analysis and improvement in a semi-quantum private comparison without pre-shared key

被引：6
|
作者：
He, Zhenbin [1 ]
Lou, Xiaoping [1 ]
机构：
[1] Hunan Normal Univ, Coll Informat Sci & Engn, Lushan Rd, Changsha, Hunan, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2023年 / 22卷 / 03期
关键词：
Semi-quantum private comparison; No pre-shared key; Semi-honest third party; Quantum cryptography; COMPARISON PROTOCOL; DIRECT COMMUNICATION;
D O I：
10.1007/s11128-023-03892-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Lately, Tian et al. proposed a novel semi-quantum private comparison (SQPC) protocol without pre-shared key, which reduces the complexity and cost of the protocol. However, we found there exist some security problems in Tian's SQPC protocol, such that participants' secret information can easily be leaked. In addition, based on Tian's SQPC protocol, we proposed an improved SQPC protocol that has a higher security level.
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收藏
页数：18
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