期刊
PHYSICS LETTERS A
卷 376, 期 16, 页码 1323-1327出版社
ELSEVIER
DOI: 10.1016/j.physleta.2012.02.048
关键词
Quantum scalar product; Quantum cryptography; Quantum entanglement; Secure multi-party computation
资金
- National Natural Science Foundation of China [90818005, 60903217, 60773032]
- China Postdoctoral Science Foundation [20090450701]
Secure scalar product serves as an important primitive for secure multi-party computation and has a wide application in different areas, such as statistical analysis, data mining, computational geometry, etc. How to collaboratively compute the correct scalar product result without leaking any participants' private information becomes the primary principle of designing secure scalar product schemes. In this Letter, we present a secure two-party quantum scalar product scheme via quantum entanglement and quantum measurement with the help of a non-colluding third party (TP). Furthermore, the scheme is proven to be secure under various kinds of outside attacks and participant attacks. (C) 2012 Elsevier B.V. All rights reserved.
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