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Novel security enhancement technique against eavesdropper for OCDMA system using 2-D modulation format with code switching scheme

Simranjit Singh, Ramandeep Kaur, Amanvir Singh +1 more

Optical Fiber TechnologyFeb 14, 201515 citations

Experimental Investigation of Security Issues in O-CDMA

Zhi Jiang, Daniel E. Leaird, Andrew M. Weiner

In this paper, two vulnerabilities that allow an eavesdropper to extract data from an isolated user in a two-code-keying spectrally phase-coded optical-code-division-multiple-access (O-CDMA) system are experimentally demonstrated. One of these vulnerabilities stems from spectral dips that result from phase-to-amplitude conversion in the encoding process, which allows eavesdropping by using a narrowband tunable optical filter and a simple energy detector. A modified O-CDMA transmitter scheme that masks this vulnerability is demonstrated. A second, especially serious, vulnerability allows eavesdropping by using a differential-phase-shift-keying receiver. Both of these vulnerabilities arise from a structure in the coding and signaling schemes that allow an eavesdropper to recover data, with relatively simple hardware and without attempting to learn the codesIn this paper, two vulnerabilities that allow an eavesdropper to extract data from an isolated user in a two-code-keying spectrally phase-coded optical-code-division-multiple-access (O-CDMA) system are experimentally demonstrated. One of these vulnerabilities stems from spectral dips that result from phase-to-amplitude conversion in the encoding process, which allows eavesdropping by using a narrowband tunable optical filter and a simple energy detector. A modified O-CDMA transmitter scheme that masks this vulnerability is demonstrated. A second, especially serious, vulnerability allows eavesdropping by using a differential-phase-shift-keying receiver. Both of these vulnerabilities arise from a structure in the coding and signaling schemes that allow an eavesdropper to recover data, with relatively simple hardware and without attempting to learn the codes

Journal of Lightwave TechnologyNov 1, 200668 citations

Security enhancement of OCDMA system against eavesdropping using code-switching scheme

Vishav Jyoti, Rajinder Singh Kaler

OptikAug 3, 201011 citations

Experimental investigation on security of temporal phase coding OCDMA system with code-shift keying and differential phase-shift keying

Bo Dai, Zhensen Gao, Xu Wang +2 more

We experimentally demonstrate security vulnerability in the temporal phase coding single-user DPSK- and CSK-OCDMA systems with a DPSK demodulator. In the systems without proper decoding, error free BER performance and clear open eye diagrams indicate the eavesdropping possibility for both systems. We also discuss the principle of DPSK demodulation attack.

Asia Communications and Photonics ConferenceDec 1, 20103 citations

Novel Security Enhancement Technique for OCDMA and SAC OCDMA Against Eavesdropping Using Multi-diagonal Code and Gating Scheme

Teena Sharma, Ravi Kumar Maddila

Lecture notes in electrical engineeringApr 9, 20195 citations

Security Issues in OCDMA with Multiple-User Aggregation

Zhi Liang Jiang, Daniel E. Leaird, Andrew M. Weiner

We experimentally investigate security issues in OCDMA using the multiple-user aggregation scheme and demonstrate vulnerabilities that may permit an eavesdropper to recover data masked by aggregation.

Conference on Lasers and Electro-OpticsMay 1, 20074 citations

Experimental investigation of security issues in OCDMA: a code-switching scheme

Abstract

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Experimental investigation of security issues in OCDMA: a code-switching scheme

Abstract

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