Cryptanalysis and Improvement of Semi-Quantum Dialogue with Bell Entangled States

被引：1
|
作者：
Shi, Guo-Fang [1 ]
机构：
[1] Xian Univ Posts & Telecommun, Sch Sci, Xian 710061, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2023年 / 62卷 / 10期
关键词：
Semi-quantum; Dialogue; Double controlled-not operation; Bell states; 03.67.Hk; 03.67.Dd; 03.65.Ud; KEY DISTRIBUTION; CRYPTOGRAPHY; SECURITY;
D O I：
10.1007/s10773-023-05482-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Recently, Pan proposed a semi-quantum dialogue scheme with Bell entangled states Pan (Int. J. Theor. Phys. 59, 1364-1371, 2020). Here we re-examin the security of it and discover a security vulnerability in the original scheme. Eavesdropper Eve may utilize double controlled-not operation attack to obtain Bob's secret without being detected. Finally, we give an improvement of the semi-quantum dialogue protocol and prove its security. We sincerely hope the researchers pay enough attention to double controlled-not operation attack hidden in semi-quantum cryptography protocols and design truly secure semi-quantum protocols.
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页数：11
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