Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Connection of Two Conventional Enhanced to Encrypt Color Images

Version 1 : Received: 18 April 2021 / Approved: 19 April 2021 / Online: 19 April 2021 (16:06:55 CEST)

How to cite: Hraoui, S.; JarJar, A. Connection of Two Conventional Enhanced to Encrypt Color Images. Preprints 2021, 2021040507 (doi: 10.20944/preprints202104.0507.v1). Hraoui, S.; JarJar, A. Connection of Two Conventional Enhanced to Encrypt Color Images. Preprints 2021, 2021040507 (doi: 10.20944/preprints202104.0507.v1).

Abstract

This document introduces a new cryptosystem mixing two improvement standards generally used for text encryption, in order to give birth a new color image encryption algorithm capable of dealing with known attacks. Firstly, two substitution matrixes attached to a strong replacement function will be generated for advanced Vigenere technique application. At the end of this first round, the output vector is subdivided into size blocks according to the used chaotic map, for acting a single enhanced Hill circuit insured by a large inversible matrix. A detailed description of such a large involutive matrix constructed using Kronecker products will be given. accompanied by a dynamic translation vector to eliminate any linearity. A solid chaining is established between the encrypted block and the next clear block to avoid any differential attack. Simulations carried out on a large volume of images of different sizes and formats ensure that our approach is not exposed to any known attacks.

Subject Areas

Vigenere grid; Involutive matrix; Chaotic map; Broadcast function; genetic operator

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