Modified general individual attack against differential-phase-shift quantum key distribution

Inoue, Kyo; Honjo, Toshimori

doi:10.1103/physreva.110.042626

Phys. Rev. A

2024

DOI: 10.1103/physreva.110.042626

|View full text |Cite

Modified general individual attack against differential-phase-shift quantum key distribution

Kyo Inoue,

Toshimori Honjo

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Practical Security of Continuous Variable Measurement- Device-Independent Quantum Key Distribution with Local Local Oscillator

Guo,

Zhang,

Guo

2024

Mathematics

View full text Add to dashboard Cite

Continuous-variable (CV) measurement-device-independent (MDI) quantum key distribution (QKD) can remove the feasible side-channel attacks on detectors based on the accurate Bell-state measurement (BSM), where an optical amplitude modulator (AM) plays a crucial role in managing the intensity of the transmitted light pulse. However, the AM-involved practical security has remained elusive as the operating frequency of the AM usually determines the actual secret key rate of the CV-MDI-QKD system. We find that an imperfect pulse generated from the AM at high speed can lead to a challenge to the practical security as a minor intensity change of the light pulse can bring about a potential information leakage. Taking advantage of this flaw, we suggest an attack strategy targeting the embedded AM in CV-MDI-QKD without sending the local oscillator (LO). This attack can damage the AM and thus decrease the estimated secret key rate of the system even when the orthogonal local LO (LLO) scheme is carried out. To assess the practical security risk resulting from the leaked information from the AM, we conduct numerical simulations to demonstrate the influence of the AM on the CVMDI-QKD system.

show abstract

Practical Security of Continuous Variable Measurement- Device-Independent Quantum Key Distribution with Local Local Oscillator

Guo,

Zhang,

Guo

2024

Mathematics

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Modified general individual attack against differential-phase-shift quantum key distribution

Cited by 1 publication

References 24 publications

Practical Security of Continuous Variable Measurement- Device-Independent Quantum Key Distribution with Local Local Oscillator

Practical Security of Continuous Variable Measurement- Device-Independent Quantum Key Distribution with Local Local Oscillator

Contact Info

Product

Resources

About