Quantum Private Comparison: A Review
This is an incremental review paper for researchers in quantum secure multiparty computation.
This paper reviews quantum private comparison (QPC) protocols, categorizing them into three types based on quantum implementation mechanisms and analyzing their progress, design ideas, and characteristics.
As an important branch of quantum secure multiparty computation, quantum private comparison (QPC) has attracted more and more attention recently. In this paper, according to the quantum implementation mechanism that these protocols used, we divide these protocols into three categories: The quantum cryptography QPC, the superdense coding QPC, and the entanglement swapping QPC. And then, a more in-depth analysis on the research progress, design idea, and substantive characteristics of corresponding QPC categories is carried out, respectively. Finally, the applications of QPC and quantum secure multi-party computation issues are discussed and, in addition, three possible research mainstream directions are pointed out.