基于EPR粒子对的信息签名协议  

Information signature protocols using Einstein-Podolsky-Rosen pairs

作　　者：温晓军[1] 刘云[1] 张鹏云[2] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]大连理工大学物理系,辽宁大连116024

出　　处：《大连理工大学学报》2007年第3期424-428,共5页Journal of Dalian University of Technology

基　　金：国家自然科学基金资助项目(10505005;60572035);通信与信息系统北京市重点实验室资助项目(JD100040513)

摘　　要：研究了利用Einstein-Podolsky-Rosen(EPR)对的纠缠特性进行量子数字签名的方案,提出了一个基于测量结果比较的签名协议以及一个基于隐形传态的签名协议.在基于测量结果比较的签名协议中,通信双方测量各自的EPR并将测量结果与消息M进行比较可以实现M的签名和验证,同时通过量子单向函数来保证协议的安全.在基于隐形传态的签名协议中,消息发送者将M通过隐形传态传递给接收者来实现对M签名并验证,其安全性由量子隐形传态的物理特性来保证.这两种协议均可以脱离可信赖的第三方,且通信过程中不需要密钥,具有无条件安全性.Two quantum digital signature schemes using the entanglement character of Einstein-Podolsky-Rosen （EPR） pairs were researched, and a protocol based on comparing the measurement result and the other protocol based on teleportation were proposed. In the first protocol, the communicators measured their EPR and compared the measurement results with the message M to implement signature and verification, in the meantime using quantum one-way function to guarantee its security. In the second protocol, the sender sent M to the receiver via quantum teleportation to implement signature and verification, whose security was guaranteed by the physical characteristics of quantum teleportation. These two protocols did not need a third party who was worthy of being trusted, neither need any keys in the communication process. Furthermore, they had unconditional security.

关 键 词：量子信息 签名协议 EPR对 

分 类 号：TN918.91[电子电信—通信与信息系统] TN201[电子电信—信息与通信工程]