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机构地区:[1]浙江工商大学信息与电子工程学院,杭州310018
出 处:《光子学报》2013年第11期1311-1318,共8页Acta Photonica Sinica
基 金:The National Natural Science Foundation of China(No.11375152);the Natural Science Foundation of Zhejiang Province(No.LQ12F02012)
摘 要:针对量子对话协议信息泄露导致的安全威胁,提出一个无信息泄露的受控量子对话协议,使控制者Alice能够控制Bob和Charlie通信双方之间的双向通信.该协议充分利用两个最大纠缠的GHZ态纠缠交换后的测量相关性和降低传输效率来防止信息发生泄露;同时,不需要进行GHZ基测量而只需要进行Bell基测量.安全性分析表明,该协议能够检测到外部窃听者发起的截获-重发、测量-重发和纠缠-测量等主动攻击.In order to solve the security threat of information leakage in quantum dialogue protocols, a controlled quantum dialogue protocol without information leakage was proposed, where the controller Alice controlled the bidirectional communication between two communication parties, Bob and Charlie. The problem of information leakage was avoided by making full use of the measurement correlation property after entanglement swapping between two maximally entangled GHZ states and decreasing the transmission efficiency. Moreover, the Bell-basis measurement rather than the GHZ-basis measurement was needed. Security analysis shows that the active attacks from an outside eavesdropper can be detected, such as the intercept-resend attack, the measurement-resend attack and the entanglement-and-measurement attack.
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