A recursive non-linear pre-encryption for opto-digital double random phase encoding

被引：7

作者：

Bekkouche, Toufik ^{[1
]}

Bouguezel, Saad ^{[2
]}

机构：

[1] Fac Technol, Dept Elect, ETA Lab, Bordj Bouarreridj 34000, Algeria

[2] Univ Ferhat Abbas Setif 1, Fac Technol, Dept Elect, LCCNS Lab, Setif 19000, Algeria

来源：

OPTIK | 2018年 / 158卷

关键词：

Chaotic maps; Double random phase encoding; Fractional Fourier transforms; Image encryption; Recursive non-linear pre-encryption; FRACTIONAL FOURIER-TRANSFORM; OPTICAL-IMAGE ENCRYPTION; PLAINTEXT ATTACK; DOMAINS;

D O I：

10.1016/j.ijleo.2017.12.142

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we propose a recursive non-linear pre-encryption to be carried out digitally on the input image in the spatial domain before applying any double random phase encoding (DRPE). It consists of firstly scrambling the input image chaotically and then performing the bit-wise XOR operation recursively between two consecutive pixels following a given pattern. The starting two consecutive pixels are formed by the initial pixel in the pattern and a random eight-bit integer. The proposed pre-encryption-based DRPE image encryption system and existing DRPE cryptosystems are compared in terms of the sensitivity of the various encryption keys to decryption attacks. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：940 / 950

页数：11

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