363 citations · 1k across the 17 of their papers we have counts for
17 papers · 1 filter
Improve the Maximum Transmission Distance of Four-State Continuous Variable Quantum Key Distribution by using a Noiseless Linear Amplifier
Bingjie Xu, Chunming Tang, Hui Chen +2
A modified four-state CVQKD protocol is proposed to increase the maximum transmission distance and tolerable excess noise in the presence of Gaussian lossy and noisy channel by usi…
Quantum asymmetric cryptography with symmetric keys
Fei Gao, Qiao-Yan Wen, Su-Juan Qin +1
Based on quantum encryption, we present a new idea for quantum public-key cryptography (QPKC) and construct a whole theoretical framework of a QPKC system. We show that the quantum…
Revisiting the security of quantum dialogue and bidirectional quantum secure direct communication
Fei Gao, Fen-Zhuo Guo, Qiao-Yan Wen +1
From the perspective of information theory and cryptography, we analyze the security of two quantum dialogue protocols and a bidirectional quantum secure direct communication (QSDC…
Cryptanalysis of the Hillery-Buzek-Berthiaume quantum secret-sharing protocol
Su-Juan Qin, Fei Gao, Qiao-Yan Wen +1
The participant attack is the most serious threat for quantum secret-sharing protocols. We present a method to analyze the security of quantum secret-sharing protocols against this…
Consistency of shared reference frames should be reexamined
Fei Gao, Fen-Zhuo Guo, Qiao-Yan Wen +1
In a recent Letter [G. Chiribella et al., Phys. Rev. Lett. 98, 120501 (2007)], four protocols were proposed to secretly transmit a reference frame. Here We point out that in these…
Fake one-time pad cannot be used to improve the efficiency of quantum communication
Fei Gao, Su-Juan Qin, Qiao-Yan Wen +1
Two misuses of one-time pad in improving the efficiency of quantum communication are pointed out. One happens when using some message bits to encrypt others, the other exists becau…