中国物理B ›› 2014, Vol. 23 ›› Issue (6): 64201-064201.doi: 10.1088/1674-1056/23/6/064201

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

An encryption scheme based on phase-shifting digital holography and amplitude-phase disturbance

花丽丽a, 徐宁a, 杨庚b   

  1. a College of Opto-Electronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;
    b College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
  • 收稿日期:2013-08-12 修回日期:2013-10-30 出版日期:2014-06-15 发布日期:2014-06-15
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2011CB302903), the National Natural Science Foundation of China (Grant Nos. 61272084 and 61202004), and the Key Project of Natural Science Research of Jiangsu University, China (Grant No. 11KJA520002).

An encryption scheme based on phase-shifting digital holography and amplitude-phase disturbance

Hua Li-Li (花丽丽)a, Xu Ning (徐宁)a, Yang Geng (杨庚)b   

  1. a College of Opto-Electronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;
    b College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
  • Received:2013-08-12 Revised:2013-10-30 Online:2014-06-15 Published:2014-06-15
  • Contact: Xu Ning E-mail:xuning@njupt.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2011CB302903), the National Natural Science Foundation of China (Grant Nos. 61272084 and 61202004), and the Key Project of Natural Science Research of Jiangsu University, China (Grant No. 11KJA520002).

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摘要： In this paper, we propose an encryption scheme based on phase-shifting digital interferometry. According to the original system framework, we add a random amplitude mask and replace the Fourier transform by the Fresnel transform. We develop a mathematical model and give a discrete formula based on the scheme, which makes it easy to implement the scheme in computer programming. The experimental results show that the improved system has a better performance in security than the original encryption method. Moreover, it demonstrates a good capability of anti-noise and anti-shear robustness.

关键词: optical encryption, phase-shifting holography, security, robustness

Abstract: In this paper, we propose an encryption scheme based on phase-shifting digital interferometry. According to the original system framework, we add a random amplitude mask and replace the Fourier transform by the Fresnel transform. We develop a mathematical model and give a discrete formula based on the scheme, which makes it easy to implement the scheme in computer programming. The experimental results show that the improved system has a better performance in security than the original encryption method. Moreover, it demonstrates a good capability of anti-noise and anti-shear robustness.

Key words: optical encryption, phase-shifting holography, security, robustness

中图分类号:  (Imaging and optical processing)

  • 42.30.-d
42.15.Eq (Optical system design) 42.40.-i (Holography) 42.87.Bg (Phase shifting interferometry)