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On the Existence of Quantum Signature for Quantum Messages |
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| Authors: | Qin Li Wai Hong Chan Chunhui Wu Zhonghua Wen |
| Affiliation: | 1. MOE Key Laboratory of Intelligent Computing and Information Processing, College of Information Engineering, Xiangtan University, Xiangtan, 411105, China 2. Department of Mathematics and Information Technology, The Hong Kong Institute of Education, Hong Kong, Hong Kong 3. Department of Computer Science, Guangdong University of Finance, Guangzhou, 510521, China 4. College of Information Engineering, Xiangtan University, Xiangtan, 411105, China |
| Abstract: | Quantum signature (QS) is used to authenticate the identity of the originator, ensure data integrity and provide non-repudiation service with unconditional security. Depending on whether a trusted third party named arbitrator is involved or not, QS is classified as arbitrated QS and true QS. This paper studies existence problem about the two kinds of QS and contributes to two points: (1) a basic framework is provided to analyze the possibility of arbitrated QS on signing quantum messages; (2) disagreement between the impossibility of true QS and an existing true QS scheme is solved. |
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