Cryptanalysis of a multi-user quantum network system and quantum communication using χ-type entangled states

被引：1

作者：

Gao, Gan ^{[1
]}

机构：

[1] Tongling Univ, Dept Elect Engn, Tongling 244000, Peoples R China

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2013年 / 62卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Security loophole; Quantum secure direct communication; Quantum key distribution; chi-type entangled state; SECURE COMMUNICATION; BELL THEOREM; GHZ STATE; CRYPTOGRAPHY; KEY;

D O I：

10.3938/jkps.62.1093

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A quantum secure direct communication and quantum key distribution(QSDC-QKD) protocol based on chi-type entangled states was recently proposed by Hong et al. [J. Korean Phys. Soc. 61, 1 (2012)]. By analyzing the protocol, we find that it is not secure; that is, the eavesdropper can eavesdrop on half of Bob's secret messages and half of Alice's secret keys without introducing any error.

引用

页码：1093 / 1096

页数：4

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