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Physical layer secret key generation for fiber-optical networks

Author(s): Kravtsov, K; Wang, ZX; Trappe, W; Prucnal, Paul R

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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
Publication Date: 30-Sep-2013
Electronic Publication Date: 30-Sep-2013
Citation: Kravtsov, K, Wang, ZX, Trappe, W, Prucnal, PR. (2013). Physical layer secret key generation for fiber-optical networks. Optics Express, 21 (23756 - 23771. doi:10.1364/OE.21.023756
DOI: doi:10.1364/OE.21.023756
Pages: 23756 - 23771
Type of Material: Journal Article
Journal/Proceeding Title: Optics Express
Version: Final published version. This is an open access article.

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