Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems
| Autor: | Yan Yu, Tao Wang, Yanzan Sun, Qianwu Zhang, Yating Wu, Yuanfeng Hu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Key generation
Orthogonal frequency division multiplexing (OFDM) business.industry Computer science Key space security QC350-467 Shared secret Optics. Light Communications security Encryption Passive optical network Atomic and Molecular Physics and Optics TA1501-1820 Key (cryptography) Static key Applied optics. Photonics Electrical and Electronic Engineering business passive optical network (PON) Computer network key generation |
| Zdroj: | IEEE Photonics Journal, Vol 13, Iss 2, Pp 1-9 (2021) |
| ISSN: | 1943-0655 |
| Popis: | Key generation and distribution is a fundamental problem of communication security. To avoid the potential risk due to static key, a physical-layer dynamic key generation and encryption scheme is proposed for orthogonal frequency division multiplexing passive optical network (OFDM-PON) systems. By exploiting the inherent channel randomness, the shared secret key between the OLT and ONU is generated and renewed periodically, thereby effectively improving the security against malicious attacks. The transmission experiment of 3.5 Gb/s 16-quardrature-amplitued-modulatin encrypted OFDM data is successfully demonstrated over a 25 km standard single-mode fiber. The key space of the proposed encryption scheme reaches ${10^{66}}$ , which provides privacy between users and protection against eavesdropping. |
| Databáze: | OpenAIRE |
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