Cryptanalysis of Quantum Secure Direct Communication and Authentication Scheme via Bell States
Cryptanalysis of Quantum Secure Direct Communication and Authentication Scheme via Bell States
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DOI：
10.1088/0256-307x/28/2/020303
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发表时间：
2011-02
影响因子：
3.5
通讯作者：
F. Gao 高;Su-Juan 素娟 Qin 秦;F. Guo 郭;Q. Wen 温
中科院分区：
文献类型：
--
作者：
F. Gao 高;Su-Juan 素娟 Qin 秦;F. Guo 郭;Q. Wen 温
分析了基于贝尔状态的量子安全直接通信（QSDC）和认证协议的安全性。结果表明，窃听者可以使认证功能失效，成功实施中间人攻击，在不引入任何错误的情况下获取甚至修改传输的秘密。对特定的攻击策略进行了论证，并提出了一种改进的协议。
The security of the quantum secure direct communication (QSDC) and authentication protocol based on Bell states is analyzed. It is shown that an eavesdropper can invalidate the authentication function, and implement a successful man-in-the-middle attack, where he/she can obtain or even modify the transmitted secret without introducing any error. The particular attack strategy is demonstrated and an improved protocol is presented.