@Article{jqc.2021.019675,
AUTHOR = {Jerrel Gianni, Zhiguo Qu},
TITLE = {New Quantum Private Comparison Using Hyperentangled GHZ State},
JOURNAL = {Journal of Quantum Computing},
VOLUME = {3},
YEAR = {2021},
NUMBER = {2},
PAGES = {45--54},
URL = {http://www.techscience.com/jqc/v3n2/42996},
ISSN = {2579-0145},
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 security and checks if the transmission in the quantum 
channel is secure or not before sending the quantum carrier. The proposed protocol 
is proved to be able to fend off various kinds of eavesdropping attacks. In addition, 
the new QPC protocol also can compare secret inputs securely and efficiently.},
DOI = {10.32604/jqc.2021.019675}
}