On the Security of Optical Ciphers Under the Architecture of Compressed Sensing Combining with Double Random Phase Encoding

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

9 Scopus Citations
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  • Junxin Chen
  • Yushu Zhang
  • Leo Yu Zhang

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Original languageEnglish
Article number7802611
Journal / PublicationIEEE Photonics Journal
Issue number4
Online published26 Jun 2017
Publication statusPublished - Aug 2017


This work investigates the security of optical ciphers integrating compressed sensing (CS) with double random phase encoding. Theoretical analysis demonstrates that the combined system, regardless of the implementation order of the two procedures, can be normalized as a single CS projection process, whose equivalent measurement matrix can be recovered by plaintext attack. The proved restricted isometry property of the equivalent measurement matrices further renders the adversary great convenience to recover the plaintext with only a single-step l1 optimization. Computer simulations are also carried out for verification.

Research Area(s)

  • Imaging systems, optical encryption and authentication

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