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

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

Spectrally phase coded OCDMA with a modulation format based on switching between two codes is demonstrated. The code switching data modulation format enhances security compared to on-off keying by eliminating a vulnerability to eavesdropping based on a simple energy detector.

Electronics LettersJul 7, 200590 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

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

Novel virtual user scheme to increase data confidentiality against eavesdropping in OCDMA network

Vishav Jyoti, Rajinder Singh Kaler

We propose a novel technique to increase the confidentiality of an optical code division multiple access (OCDMA) system. A virtual user technique is analyzed and implemented to make an OCDMA system secure. Using this technique, an eavesdropper will never find an isolated authorized user's signal. When authorized users and virtual users transmit data synchronously and asynchronously, network security increases by 25% and 37.5%, respectively.

Chinese Optics LettersJan 1, 20119 citations

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

Vishav Jyoti, Rajinder Singh Kaler

OptikAug 3, 201011 citations

New Approach for Performance and Security Enhancement in OCDMA Networks

Sumit Kumar Gupta, Aditya Goel

Advances in intelligent systems and computingJan 1, 20173 citations

Security Issues in OCDMA with Multiple-User Aggregation

Abstract

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Security Issues in OCDMA with Multiple-User Aggregation

Abstract

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