Secure Key Distribution Using Correlated Randomness in Lasers Driven by Common Random Light
Abstract
We propose a secure key distribution scheme based on correlated physical randomness in remote optical scramblers driven by common random light. The security of the scheme depends on the practical difficulty of completely observing random optical phenomena. We describe a particular realization using the synchronization of semiconductor lasers injected with common light of randomly varying phase. We experimentally demonstrate the feasibility of the scheme over a distance of 120 km.
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References 24 · Cited by 174
- Authors
- Yoshimura, K., Muramatsu, J., Davis, P., Harayama, T., Okumura, H., Morikatsu, S., Aida, H., & Uchida, A.
- Affiliations
- NTT (Japan) (JP)
- Saitama University (JP)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2012-02-14
- Volume
- 108
- Issue
- 7
- Pages
- 070602-070602
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2334036084
- Cited by
- 174
- References
- 24
- Citations by year
- 2026: 19 · 2025: 15 · 2024: 12 · 2023: 17 · 2022: 10 · 2021: 17 · 2020: 11 · 2019: 11 · 2018: 14 · 2017: 15 · 2016: 6 · 2015: 7 · 2014: 11 · 2013: 4 · 2012: 5
- FWCI
- 8.50
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Japan Society for the Promotion of Science (21686009)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Acoustics and Ultrasonics › Random lasers and scattering media
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Chaos-based Image/Signal Encryption
- Keywords
- secure key distribution, correlated randomness, physical randomness, semiconductor lasers, laser synchronization, quantum key distribution, long-haul optical transmission
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