Research on Quantum Private Comparison Based on χ-type State

doi:10.3969/j.issn.1671-1122.2017.10.008

Abstract

Abstract:

This paper proposes a quantum private comparison protocol based on χ-type state. Two participant parties Alice and Bob, with the help of a semi-honest third party, can compare the equality of their secret information without revealing the content of secret information by simple quantum measurements and mathematical operations. The protocol doesn’t need unitary operations which may consume expensive quantum devices. Single particle and two particles measurements, which are easy implemented with current technologies, are employed by two participant parties and a semi-honest third party respectively. The security analysis of the protocol shows that the protocol is theoretically safe, which can effectively prevent external eavesdropping, participant’s intercept-measure-resend attack, and third party’s attack.

Key words: quantum private comparison, χ-type state, semi-honest third party

CLC Number:

TP309

Pei YANG, Xiaoqing TAN. Research on Quantum Private Comparison Based on χ-type State[J]. Netinfo Security, 2017, 17(10): 50-54.

Figures/Tables 2

References 20

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