Title: Improving performance of the symmetrical evolutionary ciphering system SEC

Authors: Mohammed Bougrine; Salima Trichni; Fouzia Omary

Addresses: Faculty of Sciences of Rabat, 4 Avenue Ibn Batouta, B.P. 1014, Rabat, 10106, Morocco ' Faculty of Sciences of Rabat, 4 Avenue Ibn Batouta, B.P. 1014, Rabat, 10106, Morocco ' Faculty of Sciences of Rabat, 4 Avenue Ibn Batouta, B.P. 1014, Rabat, 10106, Morocco

Abstract: Nowadays computer security becomes, increasingly, an indispensable field. It represents a major challenge for all entities: economic, political, social... However, few are the cryptographic systems that ensure security and still resists the enormous growth in technology. Now, cryptanalysis tools are much more sophisticated and more powerful than before. Hence, the need to design new systems that can be competitive to the old ones. New cryptographic systems with new properties and the ability to support this technology watch. In this work we have focused on the SEC encryption system uses a new approach of ciphering based on evolutionary algorithms, hence its called: symmetrical evolutionary ciphering. Since the strength of this type of algorithm will be very beneficial in cryptography, we will present in this paper, a new evaluation function that we have developed to improve the performance of this system and improve its resistance against all possible types of attacks.

Keywords: security; cryptography; cipher; symmetrical encryption; evolutionary algorithms; fitness function; appearance frequency; integrity; secret key; SEC.

DOI: 10.1504/IJHPSA.2021.115502

International Journal of High Performance Systems Architecture, 2021 Vol.10 No.1, pp.12 - 19

Received: 01 Jun 2020
Accepted: 23 Aug 2020
Published online: 07 Jun 2021 *