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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 24, Iss. 11 — Nov. 1, 2006
  • pp: 4228–4234

Experimental Investigation of Security Issues in O-CDMA

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

Journal of Lightwave Technology, Vol. 24, Issue 11, pp. 4228-4234 (2006)


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Abstract

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 codes.

© 2006 IEEE

Citation
Zhi Jiang, Daniel E. Leaird, and Andrew M. Weiner, "Experimental Investigation of Security Issues in O-CDMA," J. Lightwave Technol. 24, 4228-4234 (2006)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-24-11-4228

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