| Citation: | SUN Haizheng, SHANG Tao, LIU Jianwei, et al. Data reconciliation scheme for space-ground quantum key distribution network[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(12): 2311-2319. doi: 10.13700/j.bh.1001-5965.2019.0599(in Chinese)
|
In the space-ground quantum key distribution network, the hardware device limitation of the air platform makes the data transmission speed and processing capability of the post-processing stage weakened. Aimed at the characteristics of free space and airborne platform, this paper proposes a data reconciliation scheme suitable for the space-ground quantum key distribution network. Firstly, quantum error correction techniques are used to reduce the bit error rate of the original key. Then, a new method is designed to prepare random sequences in Low Density Parity-Check (LDPC) algorithm. Finally, considering the performance of the LDPC decoding algorithm and the hardware implementation complexity of the algorithm, Min-Sum decoding algorithm in the soft decision is selected. The simulation analysis shows that the error rate of the original key after quantum error correction processing is significantly reduced, and the error rate is reduced from 29.5% to 4.4%. Using a new method to generate a random sequence, the efficiency is improved under the premise of ensuring the randomness of the sequence. The time to generate a random replacement sequence with a length of 10 000 is about 0.019 s. The Min-Sum decoding algorithms in the LDPC decoding algorithm are moderate in performance and simple in hardware implementation.
| [1] |
李默, 张春梅, 银振强, 等.量子密钥分配后处理概述[J].密码学报, 2015, 2(2):113-121.
LI M, ZHANG C M, YIN Z Q, et al.An overview on the post-processing procedure in quantum key distribution[J].Journal of Cryptologic Research, 2015, 2(2):113-121(in Chinese).
|
| [2] |
朱焕东, 黄春晖.基于量子密钥分配的数据协调方法[J].计算机安全, 2007(5):27-30.
ZHU H D, HUANG C H.Data coordination method based on quantum key distribution[J].Network & Computer Security, 2007(5):27-30(in Chinese).
|
| [3] |
BENNETT C H, BRASSARD G.Quantum cryptography: Public key distribution and coin tossing[C]//Proceedings of IEEE International Conference on Computer System and Signal Processing.Piscataway: IEEE Press, 1984: 175-179.
|
| [4] |
EKERT A.Quantum cryptography based on Bell's theorem[J].Physical Review Letters, 1991, 67(6):661-663.
|
| [5] |
CHIP E, ALEXANDER C, DAVIN P, et al.Current status of the DARPA quantum network[C]//Proceedings of SPIE-The International Society for Optical Engineering.Cambridge: SPIE, 2005: 138-149.
|
| [6] |
陈非凡, 胡鑫煜, 赵英浩, 等.全球量子保密通信网络发展研究[J].计算机科学与应用, 2018, 8(10):1628-1641.
CHEN F F, HU X Y, ZHAO Y H, et al.Development analysis on global quantum secure communication network[J].Computer Science and Application, 2018, 8(10):1628-1641(in Chinese).
|
| [7] |
HEIM B, ELSER D, BARTLEY T J, et al.Atmospheric channel characteristics for quantum communication with continuous polarization variables[J].Applied Physics B, 2009, 98(4):635-640.
|
| [8] |
ELSER D, BARTLEY T, HEIM B, et al.Feasibility of free space quantum key distribution with coherent polarization states[J].New Journal of Physics, 2009, 11(4):1-13.
|
| [9] |
李晓峰, 胡渝.空-地激光通信链路总体设计思路及重要概念研究[J].应用光学, 2005, 26(6):57-62.
LI X F, HU Y.Research of the design method and some important concepts for space-to-ground optical communication[J].Journal of Applied Optics, 2005, 26(6):57-62(in Chinese).
|
| [10] |
NAUERTH S, MOLL F, RAU M, et al.Air-to-ground quantum communication[J].Nature Photonics, 2013, 7(5):382-386.
|
| [11] |
PUGH C J, KAISER S, BOURGOIN J P, et al.Airborne demonstration of a quantum key distribution receiver payload[J].Quantum Science and Technology, 2017, 2(2):1-13.
|
| [12] |
LIU H Y, TIAN X H, GU C S, et al.Drone-based all-weather entanglement distribution[J/OL].Quantum Physics, 2019(2019-05-23)[2019-10-01].https://arxiv.org/ftp/arxiv/papers/1905/1905.09527.pdf.
|
| [13] |
任继刚, 印娟, 杨彬, 等.星地量子密钥分发中的时间同步研究[J].红外与毫米波学报, 2011, 30(4):381-384.
REN J G, YIN J, YANG B, et al.Time synchronization for quantum key distribution from ground to satellite[J].Journal of Infrared and Millimeter Waves, 2011, 30(4):381-384(in Chinese).
|
| [14] |
李颖, 张鹏明, 魏俊淦.空中的网络-航空自组网[J].科技信息, 2013(11):181.
LI Y, ZHANG P M, WEI J G.Aerial network-Aeronautical ad hoc networks[J].Science & Technology Information, 2013(11):181(in Chinese).
|
| [15] |
杨汝, 李云霞, 石磊, 等.自由空间量子密钥分发关键技术的研究进展[J].激光与光电子学进展, 2018, 55(2):28-35.
YANG R, LI Y X, SHI L, et al.Research progress on key technologies of free-space quantum key distributions[J].Laser & Optoelectronics Progress, 2018, 55(2):28-35(in Chinese).
|
| [16] |
屠亮亮.基于LDPC码的离散变量量子密钥分发的数据协调[D].南京: 南京邮电大学, 2016: 33-34.
TU L L.Information reconciliatioin for discrete-variable quantum key distribution with LDPC codes[D].Nanjing: Nanjing University of Posts and Telecommunications, 2016: 33-34(in Chinese).
|
| [17] |
王瑷玲.标准量子纠错与算子量子纠错[D].西安: 陕西师范大学, 2018.
WANG A L.Standard quantum error correction and operator quantum error correction[D].Xi'an: Shaanxi Normal University, 2018(in Chinese).
|
| [18] |
GALLAGER R G.Low density parity-check codes[D].Cambridge: Massachusetts Institute of Technology, 1963.
|
| [19] |
袁建国, 孙雪敏, 汪哲, 等.光通信系统中LDPC码译码算法的研究进展[J].激光杂志, 2018, 39(2):1-7.
YUAN J G, SUN X M, WANG Z, et al.Research progress on decoding algorithm of LDPC codes in optical communication systems[J].Laser Journal, 2018, 39(2):1-7(in Chinese).
|
Figures(9)
Copyright © Journal of Beijing University of Aeronautics and Astronautics
Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn
Supported by:
Beijing Renhe Information Technology Co., Ltd.
DownLoad:
