A New DSP-Based Physical Layer Encryption Technique Applied to Passive Optical Networks
| Autor: | Marcelo Luis Francisco Abbade, Ivan Aldaya, Leonardo Silva Lessa, Melissa de Oliveira Santos, Afonso Jose do Prado |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer science
business.industry Advanced Encryption Standard Physical layer Keying 02 engineering and technology Encryption 01 natural sciences Passive optical network 010309 optics 020210 optoelectronics & photonics 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Baseband business Digital signal processing Computer hardware Phase-shift keying |
| Zdroj: | ICTON |
| DOI: | 10.1109/icton.2018.8473949 |
| Popis: | Point-to-multipoint architecture poses serious security problems to passive optical networks (PONs). In this paper, we propose the use of a new digital signal processing (DSP)-based technique to improve the confidentiality of signals traveling through PONs. The technique consists of phase-shifting and delaying the spectral components of baseband signals that further modulate optical carriers. Our simulation analysis encompasses the application of the technique to binary phase-shift keying (BPSK) in an intensity modulated-direct detection (IM-DD) system. Results reveal that the encrypted signals may be properly decoded even when 64 PON users are considered and suggest the potential of the proposed technique for practical implementations. From a security point of view, we show that the proposed technique utterly outperforms the Advanced Encryption Standard (AES) in brute force attacks. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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