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arXiv quant-ph/0309185quant-ph
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纠缠交换确保多方量子通信

Entanglement swapping secures multiparty quantum communication

Juhui Lee, Soojoon Lee, Jaewan Kim, Sung Dahm Oh

摘要:

扩展Zhang,Li和Guo [Phys. Rev. A 63,036301(2001)]设计的窃听策略,我们证明了Cabello [quant-ph/0009025]提出的基于纠缠交换的多方量子通信协议是不安全的.我们对协议进行了修改,使得纠缠交换可以保证多方量子通信的安全性,如多方量子密钥分发和经典信息的量子秘密共享,并证明了修改后的协议对Zhang-Li-Guo的窃听策略和基本的拦截-重发攻击是安全的.

英文摘要:

Extending the eavesdropping strategy devised by Zhang, Li and Guo [Phys. Rev. A 63, 036301 (2001)], we show that the multiparty quantum communication protocol based on entanglement swapping, which was proposed by Cabello [quant-ph/0009025], is not secure. We modify the protocol so that entanglement swapping can secure multiparty quantum communication, such as multiparty quantum key distribution and quantum secret sharing of classical information, and show that the modified protocol is secure against the Zhang-Li-Guo's strategy for eavesdropping as well as the basic intercept-resend attack.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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