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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 14 — Jul. 15, 2008
  • pp: 1575–1577

Security enhancement of double-random phase encryption by amplitude modulation

X. C. Cheng, L. Z. Cai, Y. R. Wang, X. F. Meng, H. Zhang, X. F. Xu, X. X. Shen, and G. Y. Dong  »View Author Affiliations


Optics Letters, Vol. 33, Issue 14, pp. 1575-1577 (2008)
http://dx.doi.org/10.1364/OL.33.001575


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Abstract

Conventional double-random phase encoding is vulnerable to a chosen or known plaintext attack owing to the linearity of the system. We introduce a technique to break down this linearity with an undercover amplitude modulation in the encryption scheme. As an additional key, this operation can significantly enhance the security of the system. A series of computer simulations have shown the effectiveness of this method and its resistance against the known plaintext attack. The design and parameter choice of the amplitude modulator is also discussed.

© 2008 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.4560) Fourier optics and signal processing : Data processing by optical means
(100.0100) Image processing : Image processing
(100.5070) Image processing : Phase retrieval

ToC Category:
Fourier Optics and Signal Processing

History
Original Manuscript: April 15, 2008
Revised Manuscript: June 4, 2008
Manuscript Accepted: June 10, 2008
Published: July 11, 2008

Citation
X. C. Cheng, L. Z. Cai, Y. R. Wang, X. F. Meng, H. Zhang, X. F. Xu, X. X. Shen, and G. Y. Dong, "Security enhancement of double-random phase encryption by amplitude modulation," Opt. Lett. 33, 1575-1577 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-14-1575


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