Study about decryption based on optical image encryption system in the Fresnel domain

XIAO Yong-liang; LIU Qiang; YUAN Sheng; ZHOU Xin; ZHAO Xiao-jun; YANG Ze-hou; CHEN Yong; ZHOU Ding-fu

doi:10.3969/j.issn.1001-3806.2009.04.029

A method was proposed to decrypt the original image from an only ciphertext encrypted from a symmetrical image.Through inverse Fresnel transform of the ciphertext holograph,the intensity of the frequency spectrum can be received by CCD and sent into a computer.According to the characteristics of autocorrelation and complex-convolution in discrete Fresnel transform,the coefficients are classified and ranked,so that the input light wave can be recovered and the original image can be obtained.The effect of the symmetrical deviation on the quality of the decrypted image was also studied.The investigation indicates that the original image can be decrypted by means of discrete Fresnel diffraction.

Study about decryption based on optical image encryption system in the Fresnel domain

Corresponding author: XIAO Yong-liang, zhoxn@21cn.com;

1. School of Electronics and Information, Sichuan University, Chengdu 610064, China;

2. Southwest Institute of TechnicalPhysics, Chengdu 610041, China

Received Date: 2008-06-03

Accepted Date: 2008-10-30

Available Online: 2009-08-25

Abstract: A method was proposed to decrypt the original image from an only ciphertext encrypted from a symmetrical image.Through inverse Fresnel transform of the ciphertext holograph,the intensity of the frequency spectrum can be received by CCD and sent into a computer.According to the characteristics of autocorrelation and complex-convolution in discrete Fresnel transform,the coefficients are classified and ranked,so that the input light wave can be recovered and the original image can be obtained.The effect of the symmetrical deviation on the quality of the decrypted image was also studied.The investigation indicates that the original image can be decrypted by means of discrete Fresnel diffraction.

HTML

Reference (15)

[1]	SITU G H,ZHANG J J.Double random-phase encoding in the Fresnel domain[J].Opt Lett,2004,29(14):1584-1586.
[2]	REFREGIER P,JAVIDI B.Optical image encryption based on input plane and output plane random encoding[J].Opt Lett,1995,20(7):767-769.
[3]	UNNIKRISHNAN G,JOSEPH J,SINGH K.Optical encryption by double-random encoding in the fractional Fourier[J].Opt Lett,2000,25(12):887-889.
[4]	ZHOU X,YUAN S,WANG S W,et al.Affine cryptosystem of double-random-phase encryption based on the fractional Fourier transform[J].Appl Opt,2006,45(33):8434-8439.
[5]	CARNICER A,MONTES-USATEGUI M,ARCOS S,et al.Vulnerability to chosen-cyphertext attacks of optical encryption schemes based on double random phase keys[J].Opt Lett,2005,30(13):1644-1646.
[6]	PENG X,ZHANG P,WEI H,et al.Known-plaintext attack on optical encryption based on double random phase keys[J].Opt Lett,2006,31(8):1044-1046.
[7]	PENG X,TANG H Q,TIAN J D.Ciphertext-only attack on double random phase encoding optical encryption system[J].Acta Physica Sinica,2007,56(5):2629-2636(in Chinese).
[8]	FIENUP J R.Phase retrieval algorithms:a comparison[J].Appl Opt,1982,21(15):2758-2769.
[9]	UNNIKRISHNAN G,MONAGHAN D S,NAUGHTON J T.A known-plaintext heuristic attack on the Fourier plane encryption algorithm[J].Optics Express,2006,14(8):3181-3186.
[10]	YU F T S,JUTAUMULIA S.Optical signal processing computing and neural networks[M].New York:Wiley-Interscience,1992:1-432.
[11]	GARRETT P.Introduction to cryptology[M].Beijing:Science Press,1999:4(in Chinese).
[12]	HWANG H E,HAN P.Signal reconstruction algorithm based on a single intensity in the Fresnel domain[J].Optics Express,2007,15(7):3766-3776.
[13]	CONG W X,CHEN N X,GU B Y.Phase retrieval in the Fresnel transforms system:a recursive algorithm[J].J O S A,1999,A16(7):1827-1830.
[14]	GOODMAN J W.Introduction to fourier optics[M].New York:McGraw-Hill,1968:1-441.
[15]	GOUDAI F,JAVIDI B,REFREGIER P.Influence of a perturbation in a double phase-encoding system[J].J O S A,1998,A15(10):2629-2637.

Study about decryption based on optical image encryption system in the Fresnel domain

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views