基于cluster态的量子多重代理盲签名方案  

A quantum multi-proxy blind signature scheme based on cluster state

作　　者：谢淑翠[1] 邵爱霞[2] 张建中[2] XIE Shu-cui SHAO Ai-xia ZHANG Jian-zhong(School of Science, Xi＇an University of Posts and Telecommunications,Xi＇ an 710121, Shaanxi, China College of Mathematics and Information Science, Shaanxi Normal University, Xi＇an 710119, Shaanxi, China)

机构地区：[1]西安邮电大学理学院,陕西西安710121 [2]陕西师范大学数学与信息科学学院,陕西西安710119

出　　处：《山东大学学报（理学版）》2017年第6期105-110,共6页Journal of Shandong University(Natural Science)

基　　金：国家自然科学基金资助项目(61402275;61273311;61402015);中央高校基本科研业务费专项资金资助项目(GK201402004);陕西省自然科学基础研究计划资助基金资助项目(2015JM 6263;2016JM6069)

摘　　要：基于可控的量子隐形传态,提出一个以四粒子cluster态为量子信道的量子多重代理盲签名方案。首先代理签名人U_j对他拥有的粒子进行Bell基测量,产生代理申请;然后原始签名Charlie对自己的粒子进行Bell基测量来授权U_j进行签名;最后验证者Bob进行相应的幺正变换验证签名。与已有的方案相比,此方案只需四粒子cluster态为量子信道,可以较少的资源和更大的安全性完成量子多重代理盲签名。安全性分析表明该方案满足不可伪造性、不可否认性、盲性以及无条件安全性。Based on the controlled quantum teleportation,this paper proposed a quantum multi-proxy blind signature scheme in which four-particle cluster state functions as quantum channel. First,the proxy signer U_j performs Bell-measurement on his particles generate proxy application. Second,the original signer Charlie performs Bell-measurement on his particles to authorize U_j to complete the signature. Finally,the verifier Bob can verify the signature by performing one unitary transformation. Compared with the existing schemes,this scheme only needs a four-particle cluster state as quantum channel to complete the quantum multi-proxy blind signature with less resources and greater security. Security analysis shows that the scheme can meet the requirements of undeniability,unforgeability,blindness and unconditional security.

关 键 词：多重代理盲签名 可控的量子隐形传态方案 cluster态 

分 类 号：TN91[电子电信—通信与信息系统]