[Zhang, Wei-Wei; Li, Dan; Li, Yan-Bing] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China. [Zhang, Wei-Wei] Chinese Acad Sci, Inst Software, State Key Lab Informat Secur, Beijing 100190, Peoples R China. [Li, Yan-Bing] Beijing Elect Sci & Technol Inst, Beijing 100070, Peoples R China.
Abstract:
We propose a secure quantum protocol for comparing the equality of information with the help of a semi-honest third party (Trent). Our protocol utilizes the triplet W states, and the single-particle measurement. The technique for preparing W state is mature, which ensures the utility of our protocol. The security of our protocol with respect to both outsider attack and participant attack is discussed. Any information about the private information, the comparison result will not be leaked out, even the third party cannot know these information.
English Abstract:
We propose a secure quantum protocol for comparing the equality of information with the help of a semi-honest third party (Trent). Our protocol utilizes the triplet W states, and the single-particle measurement. The technique for preparing W state is mature, which ensures the utility of our protocol. The security of our protocol with respect to both outsider attack and participant attack is discussed. Any information about the private information, the comparison result will not be leaked out, even the third party cannot know these information.
Zhang, Wei-Wei,Li, Dan,Li, Yan-Bing. Quantum Private Comparison Protocol with W States[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,2014-01-01,53(5):1723-1729.
