Cryptanalysis and improvement in controlled quantum dialogue using cluster states

The controlled quantum dialogue protocol which was put forward recently (Kao and Hwang in Quantum Inf Process 16(5):139, 2017 ) is analyzed. It shows that a dishonest controller can successfully eavesdrop on the secret messages that the two users send by the different initial state attack or he (she...

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Bibliographic Details
Published in:Quantum information processing 2019-04, Vol.18 (4), p.1-11, Article 98
Main Authors: Liu, Zhihao, Chen, Hanwu
Format: Article
Language:English
Subjects:
Cryptography
Data Structures and Information Theory
Eavesdropping
Mathematical Physics
Physics
Physics and Astronomy
Quantum Computing
Quantum Information Technology
Quantum Physics
Spintronics
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Summary:The controlled quantum dialogue protocol which was put forward recently (Kao and Hwang in Quantum Inf Process 16(5):139, 2017 ) is analyzed. It shows that a dishonest controller can successfully eavesdrop on the secret messages that the two users send by the different initial state attack or he (she) can disturb communication without being detected by the denial-of-service attack. To improve these security loopholes, a new method to check eavesdropping is given. The correctness and efficiency of this method is proven.
ISSN:1570-0755
1573-1332
DOI:10.1007/s11128-019-2214-9