Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (12): 81-82.DOI: 10.3778/j.issn.1002-8331.2009.12.027

• 网络、通信、安全 • Previous Articles     Next Articles

Controllable quantum secret sharing scheme on three-party entangled state

MA Hong-yang1,2,WANG Shu-mei1,LI Ran1   

  1. 1.School of Sciences,Qingdao Technological University,Qingdao,Shandong 266033,China
    2.Department of Computer Science,Ocean University of China,Qingdao,Shandong 266100,China
  • Received:2008-10-23 Revised:2008-12-26 Online:2009-04-21 Published:2009-04-21
  • Contact: MA Hong-yang


马鸿洋1,2,王淑梅1,李 冉1   

  1. 1.青岛理工大学 理学院,山东 青岛 266033
    2.中国海洋大学 信息科学与工程学院,山东 青岛 266100
  • 通讯作者: 马鸿洋

Abstract: Controllable quantum secret sharing scheme on three-party entangled states can be implemented in realistic,high quantum network with three quantum units.S1S2S3 construct a three-party entangled state.S1 prepares 2N GHZ-like state,and sends S2 and S3 the last two particles,respectively.At last,S1S2S3 check together,derive the private key string through hidden value α.The scheme analyzes the security of the protocol for two cases of attacks,where one is an eavesdropping by Eve,and the other is the intercept-and-resend attack by a dishonest person.The three-party entangled state guarantees the security of the controllable secret sharing scheme.

Key words: quantum cryptography, quantum secret sharing, three-party entangled state

摘要: 提出由3个节点组成的星型量子网络中,基于三态纠缠的可控的量子秘密共享协议。在协议中,3个节点S1S2S3共享2N个GHZ-like states,发送编码序列,利用可控制的状态参量α,将测量结果的联合计算共享密钥。理论分析证明,该协议对于外在的窃听者Eve和内在的窃听者都具有很高的安全性。如果存在窃听者,则必然发现,从而保证了共享量子密钥的安全性。

关键词: 量子密码学, 量子密钥共享, 三态纠缠