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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 9 — May. 1, 2006
  • pp: 3738–3751

A method for secure communications over a public fiber-optical network

Bernard B. Wu and Evgenii E. Narimanov  »View Author Affiliations


Optics Express, Vol. 14, Issue 9, pp. 3738-3751 (2006)
http://dx.doi.org/10.1364/OE.14.003738


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Abstract

We develop a spread-spectrum based approach to secure communications over existing fiber-optical networks. Secure transmission for a dedicated user is achieved by overlaying a covert channel onto a host channel in the existing active fiber link. The covert channel is optically encoded and temporally spread, and has average power below the noise floor in the fiber, making it hidden for a direct detection thus allowing for cryptographic and steganographic security capabilities. The presence for the host channel in the network provides an ad hoc security expansion and increases the difficulty for an eavesdropper to intercept and decode the secure signal.

© 2006 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 27, 2006
Revised Manuscript: April 18, 2006
Manuscript Accepted: April 18, 2006
Published: May 1, 2006

Citation
Bernard B. Wu and Evgenii E. Narimanov, "A method for secure communications over a public fiber-optical network," Opt. Express 14, 3738-3751 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-9-3738


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