Continuous-variable quantum key distribution: security analysis with trusted hardware noise against general attacks

Goncharov, R.K.; Kiselev, A.D.; Samsonov, E.O.; Egorov, V.I.

doi:10.17586/2220-8054-2022-13-4-372-391

Cited by 3 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, given the finiteness of the available sample for parameter estimation, it is necessary to introduce additional corrections related to the confidence intervals. These corrections are given by [42,37] , Corr , 2…”

Section: Finite-key Effects and Composable Securitymentioning

confidence: 99%

Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis

Goncharov¹,

Kiselev²,

Samsonov³

et al. 2023

Computer Optics

View full text Add to dashboard Cite

In this paper, we continue the study of the quantum cryptographic GG02 protocol, performed using the approach based on the subcarrier waves. We modify the scheme via heterodyne detection and perform security analysis for the full trusted hardware noise model in the presence of collective attacks with finite-key effects. It is shown that the system can potentially distribute the key even if the level of losses in the channel is above 9 dB. This result is consistent with the general technical level and comply with modern standards of practical CV-QKD systems. Finally, the system under consideration fully meets the criterion of composability.

show abstract

Section: Finite-key Effects and Composable Securitymentioning

confidence: 99%

Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis

Goncharov¹,

Kiselev²,

Samsonov³

et al. 2023

Computer Optics

View full text Add to dashboard Cite

show abstract

Covert information sharing via ghost displacement

et al. 2023

View full text Add to dashboard Cite

Quantum key distribution: a survey on current vulnerability trends and potential implementation risks

Brazaola-Vicario,

Ruiz,

Lage

et al. 2024

Opt. Continuum

View full text Add to dashboard Cite

Quantum key distribution (QKD) is a cryptographic technique that enables secure private key exchange between geographically distant parties over an insecure channel, protecting confidentiality against potential eavesdroppers. QKD has evolved significantly since its inception with the BB84 protocol proposed by Bennett and Brassard in 1984. Its theoretical foundation relies on quantum physics, particularly the uncertainty principle, the no-cloning theorem, and particle entanglement, which ensures its information-theoretic security when combined with the one-time-pad cryptographic algorithm. However, certain security loopholes persist in terms of practical implementation in commercial devices. Some vulnerabilities are associated with side-channel vectors linked to commonly used optical subcomponents, while others are more related to how existing protocols handle encoding and communication pipelines. In this work, we aim to comprehensively study the current state of security loopholes affecting QKD technology in commercial devices. We also provide a concise overview of the existing types of QKD implementations. Additionally, we offer insights into current trends and vulnerability countermeasures, paving the way for future research and novel mechanisms to enhance the implementation security of commercial QKD devices.

show abstract

Continuous-variable quantum key distribution: security analysis with trusted hardware noise against general attacks

Cited by 3 publications

References 34 publications

Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis

Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis

Covert information sharing via ghost displacement

Quantum key distribution: a survey on current vulnerability trends and potential implementation risks

Contact Info

Product

Resources

About