Asymmetric encryption of multiple-image based on compressed sensing and phase-truncation in cylindrical diffraction domain

In this paper, an asymmetric multiple-image encryption algorithm based on compressed sensing and cylindrical diffraction is proposed. Firstly, these multiple gray scale images are compressed by compressed sensing in separately. Then single amplitude ciphertext is obtained by asymmetric operation of...

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Bibliographic Details
Published in:Optics communications 2019-01, Vol.431, p.203-209
Main Authors: Wu, Chao, Wang, Ying, Chen, Ye, Wang, Jun, Wang, Qiong-Hua
Format: Article
Language:English
Subjects:
Asymmetric encryption
Compressed sensing
Cylindrical diffraction
Multiple-image encryption
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Summary:In this paper, an asymmetric multiple-image encryption algorithm based on compressed sensing and cylindrical diffraction is proposed. Firstly, these multiple gray scale images are compressed by compressed sensing in separately. Then single amplitude ciphertext is obtained by asymmetric operation of phase truncation after cylindrical diffraction. This method not only can achieve multiple-image encryption with a small amount of data, but also can prevent information disclosure. Moreover, the proposed method has high security because it can resist the phase-retrieval attack. Numerical simulations have demonstrated the security and effectiveness of the proposed method. •Free of phase-retrieval attack and information leakage•First time to apply the cylindrical diffraction to optical multiple-image encryption•Partly solved the problem of large amount of data in the multi-image encryption•Large encryption capacity of encrypting up to eight images
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2018.09.034