A protocol for quantum private comparison of equality(QPCE) is proposed based on five-particle cluster state with the help of a semi-honest third party(TP). In our protocol, TP is allowed to misbehave on its own but c...A protocol for quantum private comparison of equality(QPCE) is proposed based on five-particle cluster state with the help of a semi-honest third party(TP). In our protocol, TP is allowed to misbehave on its own but can not conspire with either of two parties. Compared with most two-user QPCE protocols, our protocol not only can compare two groups of private information(each group has two users) in one execution, but also compare just two private information. Compared with the multi-user QPCE protocol proposed, our protocol is safer with more reasonable assumptions of TP. The qubit efficiency is computed and analyzed. Our protocol can also be generalized to the case of 2N participants with one TP. The 2N-participant protocol can compare two groups(each group has N private information)in one execution or just N private information.展开更多
Biological weapons are used in wars to wound or kill people or animals and destroy crops with pathogenic microorganisms such as bacteria and viruses,as well as toxins and other biologically active substances.These are...Biological weapons are used in wars to wound or kill people or animals and destroy crops with pathogenic microorganisms such as bacteria and viruses,as well as toxins and other biologically active substances.These are highly infectious,easily communicable,widely destructive,long-acting,and difficult to prevent and treat.Thus,a major challenge for the international community is preventing the spread of biological weapons throughout the world.The Biological Weapons Convention(BWC)is a multilateral treaty that clearly prohibits the development,production,stockpiling,acquisition and preservation of biological and toxic weapons,as well as the design and delivery of biological warfare agents,except for the purpose of prevention,protection and other peaceful uses.The BWC is,to a certain extent,binding on countries capable of manufacturing biological weapons,and has become a powerful tool enabling the international community to jointly deal with the threats posed by biological weapons.However,its effectiveness has been reduced by the lack of a corresponding verification mechanism.With the rapid development of biotechnology,global biosecurity is faced with new and highly uncertain challenges and threats,which requires the member countries of the BWC to cooperate with,promote,and supervise each other in making constant improvements to the BWC in an effort to maintain global peace and stable development.展开更多
基金Supported by NSFC under Grant Nos.61402058,61572086the Fund for Middle and Young Academic Leaders of CUIT under Grant No.J201511+2 种基金the Science and Technology Support Project of Sichuan Province of China under Grant No.2013GZX0137the Fund for Young Persons Project of Sichuan Province of China under Grant No.12ZB017the Foundation of Cyberspace Security Key Laboratory of Sichuan Higher Education Institutions under Grant No.szjj2014-074
文摘A protocol for quantum private comparison of equality(QPCE) is proposed based on five-particle cluster state with the help of a semi-honest third party(TP). In our protocol, TP is allowed to misbehave on its own but can not conspire with either of two parties. Compared with most two-user QPCE protocols, our protocol not only can compare two groups of private information(each group has two users) in one execution, but also compare just two private information. Compared with the multi-user QPCE protocol proposed, our protocol is safer with more reasonable assumptions of TP. The qubit efficiency is computed and analyzed. Our protocol can also be generalized to the case of 2N participants with one TP. The 2N-participant protocol can compare two groups(each group has N private information)in one execution or just N private information.
基金This study was supported by the Key Laboratory on Emerging Infectious Diseases and Biosafety in Wuhan(2018201261638501)a project of the Wuhan Science and Technology Program.
文摘Biological weapons are used in wars to wound or kill people or animals and destroy crops with pathogenic microorganisms such as bacteria and viruses,as well as toxins and other biologically active substances.These are highly infectious,easily communicable,widely destructive,long-acting,and difficult to prevent and treat.Thus,a major challenge for the international community is preventing the spread of biological weapons throughout the world.The Biological Weapons Convention(BWC)is a multilateral treaty that clearly prohibits the development,production,stockpiling,acquisition and preservation of biological and toxic weapons,as well as the design and delivery of biological warfare agents,except for the purpose of prevention,protection and other peaceful uses.The BWC is,to a certain extent,binding on countries capable of manufacturing biological weapons,and has become a powerful tool enabling the international community to jointly deal with the threats posed by biological weapons.However,its effectiveness has been reduced by the lack of a corresponding verification mechanism.With the rapid development of biotechnology,global biosecurity is faced with new and highly uncertain challenges and threats,which requires the member countries of the BWC to cooperate with,promote,and supervise each other in making constant improvements to the BWC in an effort to maintain global peace and stable development.
