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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 6 — Feb. 20, 2013
  • pp: 1276–1283

Evaluations of phase-only double random phase encoding based on key-space analysis

Kazuya Nakano, Masafumi Takeda, Hiroyuki Suzuki, and Masahiro Yamaguchi  »View Author Affiliations

Applied Optics, Vol. 52, Issue 6, pp. 1276-1283 (2013)

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Although initial research shows that double-random phase encoding (DRPE) is vulnerable to known-plaintext attacks that use phase retrieval algorithms, subsequent research has shown that phase-only DRPE, in which the Fourier amplitude component of an image encrypted with classical DRPE remains constant, is resistant to attacks that apply phase retrieval algorithms. Herein, we numerically analyze the key-space of DRPE and investigate the distribution property of decryption keys for classical and phase-only DRPE. We determine the difference in the distribution property of successful decryption keys for these DRPE techniques from the numerical analysis results and then discuss the security offered by them.

© 2013 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(060.5060) Fiber optics and optical communications : Phase modulation
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.2000) Image processing : Digital image processing
(200.4740) Optics in computing : Optical processing
(060.4785) Fiber optics and optical communications : Optical security and encryption

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 31, 2012
Revised Manuscript: January 23, 2013
Manuscript Accepted: January 24, 2013
Published: February 15, 2013

Kazuya Nakano, Masafumi Takeda, Hiroyuki Suzuki, and Masahiro Yamaguchi, "Evaluations of phase-only double random phase encoding based on key-space analysis," Appl. Opt. 52, 1276-1283 (2013)

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