Jerrel Gianni1, Zhiguo Qu2,*
Journal of Quantum Computing, Vol.3, No.2, pp. 45-54, 2021, DOI:10.32604/jqc.2021.019675
Abstract In this paper, we propose a new protocol designed for quantum private
comparison (QPC). This new protocol utilizes the hyperentanglement as the
quantum resource and introduces a semi-honest third party (TP) to achieve the
objective. This protocol’s quantum carrier is a hyperentangled three-photon GHZ
state in 2 degrees of freedom (DOF), which could have 64 combinations. The TP
can decide which combination to use based on the shared key information
provided from a quantum key distribution (QKD) protocol. By doing so, the
security of the protocol can be improved further. Decoy photon technology is also
used as another means of… More >
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