Abstract
A quantum private comparison is a primitive protocol of secure multiparty quantum computation that enables two parties to privately decide whether x = y or not, given two integers x and y, that are held as private inputs by the two parties, respectively. However, many existing quantum private comparison schemes may not be efficient enough, especially applied in big-data and large-scale network environments, because of low efficiency bit-by-bit comparisons. In this paper, we present a novel and efficient quantum private comparison scheme. The proposed scheme provides higher communication efficiency because a secret-by-secret comparison instead of a bit-by-bit comparison is used.
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Acknowledgments
This work was supported by National Natural Science Foundation of China (No. 61772001), Natural Science Key Fund of Education Department of Anhui Province (No. KJ2018A0823), and Research Project of Hefei Technology College (No. 201814KJB001).
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Li, L., Shi, Rh. A Novel and Efficient Quantum Private Comparison Scheme. J. Korean Phys. Soc. 75, 15–21 (2019). https://doi.org/10.3938/jkps.75.15
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DOI: https://doi.org/10.3938/jkps.75.15