CRYPTANALYSIS AND IMPROVEMENTS FOR THE QUANTUM PRIVATE COMPARISON PROTOCOL USING EPR PAIRS
2013 ◽
Vol 11
(04)
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pp. 1350039
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Keyword(s):
In this paper, we carry out an in-depth analysis of the quantum private comparison (QPC) protocol with the semi-honest third party (TP). The security of QPC protocol using the EPR pairs is re-examined. Unfortunately, we find that TP can use the fake EPR pairs to steal all the secret information. Furthermore, we give two simple and feasible solutions to improve the original QPC protocol. It is shown that the improved protocol is secure, which can resist various kinds of attacks from both the outside eavesdroppers and the inside participants, even the semi-honest TP.
2016 ◽
Vol 55
(6)
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pp. 2969-2976
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2015 ◽
Vol 14
(6)
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pp. 2301-2305
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2015 ◽
Vol 14
(11)
◽
pp. 4225-4235
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2013 ◽
Vol 13
(2)
◽
pp. 239-247
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2019 ◽
Vol 17
(03)
◽
pp. 1950026
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2018 ◽
Vol 16
(05)
◽
pp. 1850047
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2019 ◽
Vol 34
(28)
◽
pp. 1950229
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