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计算机工程 ›› 2010, Vol. 36 ›› Issue (2): 170-172.doi: 10.3969/j.issn.1000-3428.2010.02.060

• 安全技术 • 上一篇    下一篇

基于部分纠缠态的量子安全直接通信协议

徐红云1，杨新元2，马 智2，吕 欣3   

  1. (1. 乌鲁木齐总医院，乌鲁木齐 830000；2. 信息工程大学应用数学系，郑州 450002；3. 国家信息中心，北京 100045)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-01-20 发布日期:2010-01-20

Quantum Secure Direct Communication Protocol Based on Partially Entangler State

XU Hong-yun1, YANG Xin-yuan2, MA Zhi2, LV Xin3   

  1. (1. Urumchi General Hospital, Urumchi 830000; 2. Department of Applied Mathematics, Information Engineering University, Zhengzhou 450002; 3. State Information Center, Beijing 100045)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-01-20 Published:2010-01-20

PDF

1226

被引次数

7 | 2

摘要： 提出一种新的带认证的三方量子安全直接通信协议。该方案利用共享的三粒子部分纠缠态和CNOT门来编码和译码，两方可同时向第三方传递秘密消息，共享的部分纠缠态可重复使用。在理想信道下，协议对于非相干攻击是安全的。该方案通过认证可以验证客户端身份的合法性，部分纠缠态在实际中容易制备和保存，能够实现两方同时跟第三方直接通信。

关键词: 密码学, 量子密码学, 量子安全直接通信, 部分纠缠态

Abstract: This paper proposes a new three-party quantum secure direct communication protocol with authentication. The scheme uses three-particle partially entangled states and CNOT gate to encode and decode. Two users can simultaneously transmit secret message to the third party, and partially entangled states shared can be used repeatedly. In ideal channel, the protocol is secure against incoherent attack. The advantage of the scheme is that through authentication, one can confirm the client’s legitimate identity, partially entangled states are easy to prepare and store in practice, and two users can simultaneously communicate with the third party.

Key words: cryptography, quantum cryptography, quantum secure direct communication, partially entangler state

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