CRYPTANALYSIS OF THE QSDC PROTOCOL WITHOUT USING PERFECT QUANTUM CHANNEL

被引：1

作者：

Gao, Fei ^{[1
]}

Qin, Su-Juan ^{[1
]}

Wen, Qiao-Yan ^{[1
]}

Zhu, Fu-Chen ^{[2
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

[2] Sci & Technol Commun Secur Lab, Chengdu 610041, Peoples R China

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2012年 / 10卷 / 04期

基金：

北京市自然科学基金;

关键词：

Quantum secure direct communication; quantum cryptography; cryptanalysis; SECURE DIRECT COMMUNICATION; ATTACK;

D O I：

10.1142/S0219749912500542

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

We study the security of quantum secure direct communication without perfect quantum channel. Our analysis is focused on a general individual attack, i.e. entangle-ancilla attack. The sufficient and necessary condition for a successful eavesdropping operation is obtained, and a particular attack is presented, by which Eve can elicit the whole secret without being discovered. Finally we find the root of this loophole and give a possible improvement of this protocol accordingly.

引用

页数：7

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