Citation
Alaghbari, Khaled Ab. Aziz and Rumyantsev, Konstantin and Eltaif, Tawfig and Elmabrok, Osama and Lim, Heng Siong (2021) Adaptive Modulation for Continuous-Variable Quantum Key Distribution With Real Local Oscillators Under Phase Attack. IEEE Photonics Journal, 13 (5). pp. 1-7. ISSN 1943-0647
Text
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Abstract
Continuous-variable quantum key distribution (CV-QKD) with a real local oscillator (LO) experiences a phase attack security challenge due to the reference pulses transmitted along with quantum signals over an unsecure quantum channel. In this paper, a phase attack on reference pulses of CV-QKD with a real LO is investigated. The performance of the discrete-modulated (DM) CV-QKD under this attack is analyzed analytically and by simulation, and compared with the Gaussian-modulated (GM) CV-QKD. It is found that such an attack by an eavesdropper's, significantly reduce the transmission distance for the GM based CV-QKD, whereas, the DM based CV-QKD shows a high tolerance to high phase noise. Based on phase attack monitoring, a new adaptive modulation scheme is proposed for CV-QKD to adaptively switch between GM and DM so as to maintain the optimum secret key rate.
Item Type: | Article |
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Uncontrolled Keywords: | Cryptography, CV-QKD, quantum cryptography, phase attack, discrete modulation, adaptive modulation |
Subjects: | Q Science > QA Mathematics > QA150-272.5 Algebra |
Divisions: | Faculty of Engineering and Technology (FET) |
Depositing User: | Ms Nurul Iqtiani Ahmad |
Date Deposited: | 29 Oct 2021 05:01 |
Last Modified: | 29 Oct 2021 05:01 |
URII: | http://shdl.mmu.edu.my/id/eprint/9731 |
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