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- Title
Practical quantum contract signing without quantum storage.
- Authors
Cai, Xiao-Qiu; Wang, Tian-Yin; Wei, Chun-Yan; Gao, Fei
- Abstract
In many occasions, it is inevitable to sign a contract, which can be easily realized in a face-to-face way. However, how to sign a contract in asynchronous network while guaranteeing each party's fairness is a difficult problem. In this work, we present a practical quantum contract signing protocol, which keeps the previous work's advantages such as fairness, low communication complexity and independence with the current signing technology. Furthermore, it is based on single particles but not entangled states. More importantly, it removes the requirement of long-time quantum storage which is difficult to be realized with current technology. Therefore, this protocol is more easily to be realized in practice.
- Subjects
CONTRACTS; STORAGE; ASYNCHRONOUS learning; FAIRNESS
- Publication
Quantum Information Processing, 2022, Vol 21, Issue 2, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-021-03406-4