Eur. Phys. J. Plus (2018) 133: 167
https://doi.org/10.1140/epjp/i2018-11987-x

Regular Article

A noise resistant symmetric key cryptosystem based on S₈ S-boxes and chaotic maps

¹ Department of Mathematics, College of Science, King Khalid University, Abha, Saudi Arabia
² Department of Electrical Engineering, HITEC University, Taxila, Pakistan
³ Department of Mathematics, Quaid-i-Azam University, Islamabad, Pakistan
⁴ Department of Meteorology, Comsats Institute of Information Technology, Islamabad, Pakistan
⁵ Department of Basic Sciences, University of Engineering and Technology, Taxila, Pakistan

^* e-mail: ihkhudad@kku.edu.sa

Received: 3 February 2018
Accepted: 14 March 2018
Published online: 27 April 2018

Abstract

In this manuscript, we have proposed an encryption algorithm to encrypt any digital data. The proposed algorithm is primarily based on the substitution-permutation in which the substitution process is performed by the S ₈ Substitution boxes. The proposed algorithm incorporates three different chaotic maps. We have analysed the behaviour of chaos by secure communication in great length, and accordingly, we have applied those chaotic sequences in the proposed encryption algorithm. The simulation and statistical results revealed that the proposed encryption scheme is secure against different attacks. Moreover, the encryption scheme can tolerate the channel noise as well; if the encrypted data is corrupted by the unauthenticated user or by the channel noise, the decryption can still be successfully done with some distortion. The overall results confirmed that the presented work has good cryptographic features, low computational complexity and resistant to the channel noise which makes it suitable for low profile mobile applications.