Threshold proxy quantum signature scheme with threshold shared verification  

作　　者：YANG YuGuang1,3,4 & WEN QiaoYan2 1 College of Computer Science and Technology,Beijing University of Technology,Beijing 100124,China 2 State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Tele-communications,Beijing 100876,China 3 State Key Laboratory of Integrated Services Network,Xidian University,Xi’an 710071,China 4 State Key Laboratory of Information Security(Graduate University of Chinese Academy of Sciences) ,Beijing 100049,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2008年第8期1079-1088,共10页中国科学：物理学、力学、天文学（英文版）

基　　金：the National Basic Research Program of China (973 Program)(Grant No. 2007CB311100);the National High-Technology Research and Development Program of China (Grant Nos. 2006AA01Z419 and 20060101Z4015);the Major Research Plan of the National Natural Science Foundation of China (Grant No. 90604023);the Scientific Research Common Program of Beijing Municipal Commission of Education (Grant No. KM200810005004);the Scientific Research Foundation for the Youth of Beijing University of Technology (Grant No. 97007016200701);the Doctoral Scientific Research Activation Foundation of Beijing University of Technology (Grant No. 52007016200702);the National Laboratory for Modern Communications Science Foundation of China (Grant No. 9140C1101010601)

摘　　要：A threshold proxy quantum signature scheme with threshold shared verification is proposed. An original signer could authorize a group as its proxy signers. Then only t or more of n persons in the proxy group can generate the proxy signature on behalf of the original signer and any t-1 or fewer ones cannot do that. When the proxy signature needs to be verified,any t or more of n persons belonging to the verification group can verify the message and any t-1 or fewer ones cannot verify the validity of the proxy signature.A threshold proxy quantum signature scheme with threshold shared verification is proposed. An original signer could authorize a group as its proxy signers. Then only t or more of n persons in the proxy group can generate the proxy signature on behalf of the original signer and any t ? 1 or fewer ones cannot do that. When the proxy signature needs to be verified, any t or more of n persons belonging to the verification group can verify the message and any t ? 1 or fewer ones cannot verify the validity of the proxy signature.

关 键 词：QUANTUM SIGNATURE THRESHOLD PROXY QUANTUM group SIGNATURE THRESHOLD SHARED verification 

分 类 号：TN918[电子电信—通信与信息系统]