An Arbitrated Quantum Signature Scheme without Entanglement  

作　　者：Hui-Ran Li Ming-Xing Luo Dai-Yuan Peng Xiao-Jun Wang 李慧然;罗明星;彭代渊;王晓军(School of Information Science and Technology Southwest Jiaotong University;Department of Physics University of Michigan;Department of Electrical Engineering Dublin City University)

机构地区：[1]School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China [2]Department of Physics, University of Michigan, Ann Arbor, M1 48109, USA [3]Department of Electrical Engineering, Dublin City University, Dublin 9, Ireland

出　　处：《Communications in Theoretical Physics》2017年第9期317-322,共6页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.61303039;Sichuan Youth Science and Technique Foundation No.2017JQ0048;Fundamental Research Funds for the Central Universities(Nos.2682014CX095);CSC Scholarship;EU ICT COST Crypto Action No.IC1306

摘　　要：Several quantum signature schemes are recently proposed to realize secure signatures of quantum or classical messages. Arbitrated quantum signature as one nontriviai scheme has attracted great interests because o~ its usefulness and efficiency. Unfortunately, previous schemes cannot against Trojan horse attack and DoS attack and lack of the unforgeability and the non-repudiation. In this paper, we propose an improved arbitrated quantum signature to address these secure issues with the honesty arbitrator. Our scheme takes use of qubit states not entanglements. More importantly, the qubit scheme can achieve the unforgeability and the non-repudiation. Our scheme is also secure for other known quantum attacks.

关 键 词：arbitrated quantum signature UNFORGEABILITY NON-REPUDIATION trojan horse attack DoS attack 

分 类 号：O413[理学—理论物理] TN918[理学—物理]