Security of Binary-Modulated Optical Key Distribution Against Quantum-Enhanced Coherent Eavesdropping
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2026
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866914412205441024 |
|---|---|
| author | Łukanowski, Karol Wójcik, Michał Olivares, Stefano Banaszek, Konrad Jarzyna, Marcin |
| author_facet | Łukanowski, Karol Wójcik, Michał Olivares, Stefano Banaszek, Konrad Jarzyna, Marcin |
| contents | Optical key distribution (OKD) protects the physical layer of communication links by taking advantage of the inherent noise present in the photodetection process. It allows for efficient generation of a shared random key between two distant users which can subsequently be used for cryptographic purposes secure against passive eavesdropping. Moreover, it can be straightforwardly implemented over standard intensity modulation and direct detection links, making it an attractive alternative to quantum key distribution. Here we present a comprehensive security analysis against more powerful eavesdroppers possessing either the ability to perform coherent detection, or even quantum-optimal measurements on the intercepted transmission. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_20395 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Security of Binary-Modulated Optical Key Distribution Against Quantum-Enhanced Coherent Eavesdropping Łukanowski, Karol Wójcik, Michał Olivares, Stefano Banaszek, Konrad Jarzyna, Marcin Quantum Physics Optical key distribution (OKD) protects the physical layer of communication links by taking advantage of the inherent noise present in the photodetection process. It allows for efficient generation of a shared random key between two distant users which can subsequently be used for cryptographic purposes secure against passive eavesdropping. Moreover, it can be straightforwardly implemented over standard intensity modulation and direct detection links, making it an attractive alternative to quantum key distribution. Here we present a comprehensive security analysis against more powerful eavesdroppers possessing either the ability to perform coherent detection, or even quantum-optimal measurements on the intercepted transmission. |
| title | Security of Binary-Modulated Optical Key Distribution Against Quantum-Enhanced Coherent Eavesdropping |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2603.20395 |