Two authenticated quantum dialogue protocols based on three-particle entangled states
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In this paper, we propose two authenticated quantum dialogue protocols based on three-particle entangled states, which are both completely secure and more efficient. The first controlled quantum dialogue protocol with authentication is creatively proposed, which is secure under not only some famous external attacks but also internal attacks, for example, the dishonest controller’s attack. This protocol has a slightly increasing efficiency and less qubit cost compared to previous protocols. Besides, we present the second authenticated quantum dialogue protocol, which has a high efficiency with 80% by integrating dense coding. This protocol can also resist various well-known attacks.
KeywordsControlled and authenticated quantum dialogue Authenticated quantum dialogue Three-particle entangled states Security analyses
Project supported by NSFC (Grant Nos. 61671087, 61272514, 61170272, 61003287, 61572246, 61602232, 61373131), the Fok Ying Tong Education Foundation (Grant No. 131067), the Major Science and Technology Support Program of Guizhou Province under Grant 20183001, Open Foundation of Guizhou Provincial Key Laboratory of Public Big Data (2017BDKFJJ007), the Plan for Scientific Innovation Talents of Henan Province (164100510003) and the Program for Science & Technology Innovation Research Team in Universities of Henan Province (Grant No. 18IRTSTHN014).
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