Cryptanalysis and improvement of the quantum private comparison protocol with semi-honest third party

Cryptanalysis and improvement of the quantum private comparison protocol with semi-honest third... Recently, a quantum private comparison (QPC) protocol with a dishonest third party (TP) (Yang et al. in Quantum Inf Process, 2012. doi: 10.1007/s11128-012-0433-4 ) was proposed, which pointed out that the assumption of semi-honest third party (TP) is unreasonable. Here we find this protocol is not so secure as it was expected, and then we give some improvement strategies, which ensure that both players’ secrets will not be leaked to anyone. We also discuss the assumption for TP in QPC protocls, which gives a constructive suggestions for the design of a new QPC protocol. Quantum Information Processing Springer Journals

Cryptanalysis and improvement of the quantum private comparison protocol with semi-honest third party

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Springer US
Copyright © 2012 by Springer Science+Business Media New York
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
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