计算机应用 ›› 2015, Vol. 35 ›› Issue (4): 981-984.DOI: 10.11772/j.issn.1001-9081.2015.04.0981

• 信息安全 • 上一篇    下一篇

基于W态的高效量子信息拆分方案

谢淑珍, 谭晓青   

  1. 暨南大学 信息科学技术学院, 广州 510632
  • 收稿日期:2014-10-28 修回日期:2014-12-19 出版日期:2015-04-10 发布日期:2015-04-08
  • 通讯作者: 谭晓青
  • 作者简介:谢淑珍(1990-),女,江西赣州人,硕士研究生,主要研究方向:密码编码学; 谭晓青(1976-),女,湖南衡阳人,副教授,博士,主要研究方向:密码编码学。
  • 基金资助:

    国家自然科学基金资助项目(61003258, 61472165);广东省科技计划项目(2013B010401018)。

Efficient quantum information splitting scheme based on W states

XIE Shuzhen, TAN Xiaoqing   

  1. College of Information Science and Technology, Jinan University, Guangzhou Guangdong 510632, China
  • Received:2014-10-28 Revised:2014-12-19 Online:2015-04-10 Published:2015-04-08

摘要:

为提高基于W态的量子通信方案的效率,提出了一种新的基于W态的量子信息拆分(QIS)方案。该方案中,秘密分发者通过局域操作将经典信息编码在量子比特上,并在分发的量子比特中随机插入非正交态粒子进行检测窃听,参与者只需进行3粒子投影测量即可恢复秘密。方案使参与者能够利用1个W态直接共享2比特经典信息,并能够抵御截获-测量、截获-重发和纠缠附加粒子攻击,安全性得以保证。该方案效率较高, 理论上其量子比特效率为67%。

关键词: 量子信息拆分, W态, 局域操作, 非正交态粒子

Abstract:

To improve the efficiency of quantum communication based on W states, a new scheme about Quantum Information Splitting (QIS) based on W states was proposed. Local operation was used to encode the classic information into the qubit by dealer in this scheme. The nonorthogonal state particles were inserted to detect eavesdropping in the distribution of qubit. To recover the secret, participants only needed to perform three-particle projective measurements. One W state can transmit two bits of classical information between the participants. Moreover, the scheme can resist some attacks like intercept-and-measure attack, intercept-and-resend attack and entangled ancillary particles attack to make sure of its security. The scheme has good efficiency with theoretical quantum efficiency of 67%.

Key words: Qantum Information Splitting (QIS), W state, local operation, nonorthogonal state particle

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