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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 20 — Oct. 7, 2013
  • pp: 23756–23771

Physical layer secret key generation for fiber-optical networks

Konstantin Kravtsov, Zhenxing Wang, Wade Trappe, and Paul R. Prucnal  »View Author Affiliations


Optics Express, Vol. 21, Issue 20, pp. 23756-23771 (2013)
http://dx.doi.org/10.1364/OE.21.023756


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Abstract

We propose and experimentally demonstrate a method for generating and sharing a secret key using phase fluctuations in fiber optical links. The obtained key can be readily used to support secure communication between the parties. The security of our approach is based on a fundamental asymmetry associated with the optical physical layer: the sophistication of tools needed by an eavesdropping adversary to subvert the key establishment is significantly greater and more costly than the complexity needed by the legitimate parties to implement the scheme. In this sense, the method is similar to the classical asymmetric algorithms (Diffie-Hellman, RSA, etc.)

© 2013 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4510) Fiber optics and optical communications : Optical communications
(060.4785) Fiber optics and optical communications : Optical security and encryption

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 14, 2013
Revised Manuscript: September 15, 2013
Manuscript Accepted: September 17, 2013
Published: September 30, 2013

Citation
Konstantin Kravtsov, Zhenxing Wang, Wade Trappe, and Paul R. Prucnal, "Physical layer secret key generation for fiber-optical networks," Opt. Express 21, 23756-23771 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-20-23756


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