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Chinese Physics Letters

Improvement of Security of Three-Party Quantum Secure Direct Communication Based on GHZ States

满忠晓, 夏云杰

Published Jan 1, 2007• 1 citation
OpenAlex

Abstract

为安全直接通讯基于 Greenberger Horne Zeilinger (GHZ ) 说的三聚会的量的一个协议最近被 Jin 等建议。[Phys。Lett。一 354 (2006 ) 67 ] 由分析协议，我们发现某安全枪眼，没有任何偷听，例如一位一个聚会(在原来的纸的艾莉斯) 的秘密消息，罐头总是直接被漏到公众。以前建议的这些问题被讨论，可能的答案被介绍改进原来的协议的安全。

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为安全直接通讯基于 Greenberger Horne Zeilinger (GHZ ) 说的三聚会的量的一个协议最近被 Jin 等建议。[Phys。Lett。一 354 (2006 ) 67 ] 由分析协议，我们发现某安全枪眼，没有任何偷听，例如一位一个聚会(在原来的纸的艾莉斯) 的秘密消息，罐头总是直接被漏到公众。以前建议的这些问题被讨论，可能的答案被介绍改进原来的协议的安全。
A protocol for three-party quantum secure direct communication based on Greenberger–Horne–Zeilinger (GHZ) states was recently proposed by Jin et al. [Phys. Lett. A 354 (2006) 67] By analysing the protocol we find some security loopholes, e.g. one bit of secret messages of a party (Alice in the original paper) can always be leaked straight to the public without any eavesdropping. These problems suggested previously are discussed and possible solutions are presented to improve the security of the original protocol.