Comment on "A novel chaos based optical image encryption using fractional Fourier transform and DNA sequence operation". (June 2021)

• Record Type: Journal Article
• Authors: Chen, Hang; Liu, Zhengjun; Tanougast, Camel; Blondel, Walter
• Is Part Of: Optics & laser technology. Volume 138(2021)
• Publication Date: 2021-06
• Subjects: Optcal image encryption -- Fractional Fourier transform -- Chaos -- DNA sequence operation; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2020.106901
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: We have analyzed the image encryption scheme proposed by Farah et al. in a recent published article and point out its fatal weakness and design flaw of the optical system. Abstract: We numerically demonstrate that the optical image scheme using fractional Fourier transform and DNA sequence operation proposed recently by Farah et al. [Opt & Lasers Tech, 2020, 121: 105777] has the problem of using DNA xor operation and optical implementation. The original image cannot be decrypted completely accordingly to the inverse encryption process.