Quantum secret sharing between multiparty and multiparty with Bell states and Bell measurements  

作　　者：SHI RunHua HUANG LiuSheng YANG Wei ZHONG Hong 

机构地区：[1]National High Performance Computing Center at Hefei,Department of Computer Science and Technology,University of Science and Technology of China,Hefei,230027,China [2]School of Computer Science and Technology,Anhui University,Hefei 230039,China [3]Suzhou Institute for Advanced Study,USTC,Suzhou 215123,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2010年第12期2238-2244,共7页中国科学:物理学、力学、天文学(英文版)

基　　金：supported by the Major Research Plan of the National Natural Science Foundation of China (Grant No. 90818005);the National Natural Science Foundation of China (Grant Nos. 60903217, 60773032and 60773114);the Ph.D. Program Foundation of Ministry of Education of China (Grant No. 20060358014)

摘　　要：We present a quantum secret sharing scheme between multiparty (m members in Group 1) and multiparty (n members in Group 2), and analyze its security. This scheme takes EPR pairs in Bell states as quantum resources. In order to obtain the shared key, all members only need to perform Bell measurements, rather than perform any local unitary operation. The total efficiency in this scheme approaches 100% as the classical information exchanged is not necessary except for the eavesdropping checks.We present a quantum secret sharing scheme between multiparty (m members in Group 1) and multiparty (n members in Group 2), and analyze its security. This scheme takes EPR pairs in Bell states as quantum resources. In order to obtain the shared key, all members only need to perform Bell measurements, rather than perform any local unitary operation. The total efficiency in this scheme approaches 100% as the classical information exchanged is not necessary except for the eavesdropping checks.

关 键 词：quantum information quantum cryptography quantum secret sharing 

分 类 号：O431.2[机械工程—光学工程]