一种基于GHZ态的新型安全三方量子密钥协商协议  

Novel secure three-party Quantum Key Agreement based on three-particle GHZ state

作　　者：张焰琳 ZHANG Yanlin(Chongqing College of Mobile Communication,Chongqing 401520,China;Chongqing Key Laboratory of Public Big Data Security Technology,Chongqing 401420,China)

机构地区：[1]重庆移通学院,重庆401520 [2]公共大数据安全技术重庆市重点实验室,重庆401420

出　　处：《计算机应用文摘》2023年第19期102-105,共4页Chinese Journal of Computer Application

摘　　要：基于GHZ态,文章对三方量子密钥协商协议进行了研究。其中,三位参与者预共享密钥并独立生成私钥,制备GHZ态并分组,利用量子信道交换部分序列;根据预共享密钥对序列展开测量,并将测量结果与私钥执行异或操作后发送给对应参与者;在收到异或结果后,结合预共享密钥与GHZ态的纠缠特性推导其余两方私钥的异或结果,结合私钥获得三方私钥的异或结果,结合预共享密钥获得最终共享密钥。在不揭露私钥的前提下,文章实现了多方私钥异或,且每位参与者对最终共享密钥作出相同贡献,能够有效抵抗内外部攻击。In this paper,the three-party Quantum Key Agreement is performed based on the GHZ state.The three participants pre-shared the key and generated the private key independently prepared GHZ states divided,and exchanged partial sequences using quantum channels.Participants measure the sequence according to the pre-shared key and perform XOR operations on the measurement results and the private key to send them to the corresponding participants.After the participant receives the XOR result,the XOR result of the remaining two private keys is derived by combining the entanglement characteristics of the pre-shared key and the GHZ state,and the XOR result of the three-party private key can be obtained by combining the private key,and the final shared key can be obtained by combining the pre-shared key.Under the premise of not disclosing the private key,this paper realizes the XOR of multi-party private keys,and each participant makes the same contribution to the final shared key,which can effectively resist internal attacks and external attacks.

关 键 词：量子密钥协商 GHZ态 异或运算 

分 类 号：TN918[电子电信—通信与信息系统]