Optical image encryption based on multiple-region plaintext and phase retrieval in three-dimensional space

Wen Chen, Xudong Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

Recently, three-dimensional (3D) phase retrieval algorithm has been developed for optical image encryption to overcome the limitations inherent in conventional two-dimensional (2D) phase-retrieval-based optical cryptosystems. In this paper, we propose a novel method for optical image encryption based on multiple-region plaintext and phase retrieval in 3D space. The plaintext is divided into multiple regions, and each region is encrypted into one phase-only mask based on phase retrieval in 3D space. The plaintext can be encrypted into multiple independent phase-only masks (i.e., ciphertexts) during image encryption, and cryptosystem security is effectively enhanced. Numerical experiment is conducted to demonstrate feasibility and effectiveness of the proposed method.
Original languageEnglish
Pages (from-to)128-133
Number of pages6
JournalOptics and Lasers in Engineering
Volume51
Issue number2
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes

Keywords

  • 3D phase retrieval
  • Image decryption
  • Multiple-region plaintext
  • Optical image encryption
  • Security analysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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