Quantum Private Comparison Protocol Based on Bell Entangled States
Wen Liu, Yongbin Wang, Wei Cui · Communications in Theoretical Physics · 2012
In this paper, a quantum private comparison protocol is proposed based on bell entangled states. In our protocol, two parties can compare the equality of their information with the help of a semi-honest third party. The correctness and security of our protocol are discussed. One party cannot learn the other's private information and the third party also cannot learn any information about the private information.