A high-speed key management method for quantum key distribution network

Ririka Takahashi ◽  
Yoshimichi Tanizawa ◽  
Alexander Dixon
2021 ◽  
Joo Yeon Cho ◽  
Jose-Juan Pedreno-Manresa ◽  
Sai Patri ◽  
Andrew Sergeev ◽  
Jörg-Peter Elbers ◽  

2005 ◽  
Xiao Tang ◽  
Lijun Ma ◽  
Alan Mink ◽  
Anastase Nakassis ◽  
Barry Hershman ◽  

2017 ◽  
Vol 2 (3) ◽  
pp. 034003 ◽  
A Tajima ◽  
T Kondoh ◽  
T Ochi ◽  
M Fujiwara ◽  
K Yoshino ◽  

2021 ◽  
pp. 259-267
Kamal Kishor Choure ◽  
Ankur Saharia ◽  
Nitesh Mudgal ◽  
Manish Tiwari ◽  
Ghanshyam Singh

2017 ◽  
Vol 31 (02) ◽  
pp. 1650264 ◽  
Dong Jiang ◽  
Yuanyuan Chen ◽  
Xuemei Gu ◽  
Ling Xie ◽  
Lijun Chen

Quantum key distribution (QKD) promises unconditionally secure communications, however, the low bit rate of QKD cannot meet the requirements of high-speed applications. Despite the many solutions that have been proposed in recent years, they are neither efficient to generate the secret keys nor compatible with other QKD systems. This paper, based on chaotic cryptography and middleware technology, proposes an efficient and universal QKD protocol that can be directly deployed on top of any existing QKD system without modifying the underlying QKD protocol and optical platform. It initially takes the bit string generated by the QKD system as input, periodically updates the chaotic system, and efficiently outputs the bit sequences. Theoretical analysis and simulation results demonstrate that our protocol can efficiently increase the bit rate of the QKD system as well as securely generate bit sequences with perfect statistical properties. Compared with the existing methods, our protocol is more efficient and universal, it can be rapidly deployed on the QKD system to increase the bit rate when the QKD system becomes the bottleneck of its communication system.

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