A blind quantum signature protocol using the GHZ states

查看全文 作　　者：WANG [1]MingMing;CHEN [1,2]XiuBo;YANG [1]YiXian

机构地区：[1]Information Security Center,State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications;[2]State Key Laboratory of Information Security(Institute of Information Engineering,Chinese Academy of Sciences)

出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2013年第56卷第9期,共6页

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.61003287,61170272,61121061 and 61272514);the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No.20100005120002);the Fok Ying Tong Education Foundation (Grant No.131067);the Asia Foresight Program under NSFC (Grant No.61161140320);the Fundamental Research Funds for the Central Universities (Grant No.BUPT2012RC0221) 摘　　要：Recently,some blind quantum signature(BQS) protocols have been proposed.But the previous schemes have security and efficiency problems.Based on the entangled Greenberger-Horne-Zeilinger(GHZ) states,a new weak BQS protocol is proposed.Compared with some existing schemes,our protocol has 100% efficiency.Besides,the protocol is simple and easy to implement.The security of the protocol is guaranteed by the correlation of the GHZ particles held by each participant.In our protocol,the signatory is kept blind from the content of the message.According to the security analysis,the signatory cannot disavowal his/her signature while the signature cannot be forged by others. 关键词：签名协议 GHZ态量子盲人安全保证安全分析安全性 GHZ

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A blind quantum signature protocol using the GHZ states

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