Attack and Detection on Reference-Pulse Phase of Continuous-Variable Quantum-Key Distribution

Biao Huang; Yongmei Huang; Zhenming Peng

doi:10.3788/AOS201939.1127001

Acta Optica Sinica, Volume. 39, Issue 11, 1127001(2019)

Attack and Detection on Reference-Pulse Phase of Continuous-Variable Quantum-Key Distribution

Biao Huang^{1,2,3,4,5、*}, Yongmei Huang^1,2,3, and Zhenming Peng⁴

Author Affiliations

¹Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China

²Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China

³School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China

⁴School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China

⁵Southwest Communication Institute, Chengdu, Sichuan 610041, China

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Figures & Tables(8)

Fig. 1. Model of CVQKD based on LLO

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Fig. 2. Diagram of phase attack on reference pulses

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Fig. 3. Model of receiver based on detection of phase attack

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Fig. 4. Secure-key rate of LLO-CVQKD under phase attack on reference pulses

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Fig. 5. Phase compensation noise variances of quantum signals and reference pulses under phase attack

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Table 1. Parameters for practical CVQKD systems
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Table 1. Parameters for practical CVQKD systems
Parameter V_A V_el ε_c β η
Value 18.900 0.001 0.010 0.926 0.590

Table 2. Phase noise and phase compensation accuracy
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Table 2. Phase noise and phase compensation accuracy
Parameter Group 1 Group 2 Group 3
${V_{ch}}_{}$ /rad² 0.0001 0.0001 0.0001
${V_{attack}}_{}$ /rad² 0 0.0009 0.0025
κ' 0.9998 0.9994 0.9986

Table 3. Experimental parameters of phase compensation noise variances
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Table 3. Experimental parameters of phase compensation noise variances
Parameter V_ch V_attack V_S V_R
Value /rad² 0.0001 0.0009 0.0006 0.0015

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Biao Huang, Yongmei Huang, Zhenming Peng. Attack and Detection on Reference-Pulse Phase of Continuous-Variable Quantum-Key Distribution[J]. Acta Optica Sinica, 2019, 39(11): 1127001

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