A NEW IMAGE ENCRYPTION METHOD BASED ON A 6D HYPERCHAOTIC MAP AND GENETIC OPERATORS

Mehmet Demirtas

doi:10.17780/ksujes.1208570

EN TR

A NEW IMAGE ENCRYPTION METHOD BASED ON A 6D HYPERCHAOTIC MAP AND GENETIC OPERATORS

Abstract

This paper presents a novel and secure image encryption method. The plain image’s pixels are confused using the N-point crossover operation of genetic algorithms. Randomly paired rows and columns are determined by the two state variables of a six-dimensional hyperchaotic map. The number of crossover points, which are calculated by the two other state variables of the hyperchaotic map, differ from each other for each row or column pair. The crossover positions are specified according to the number of crossover points with the help of the last two state variables. The proposed algorithm generates the diffusion stage’s encryption key using the SHA-256 hash value of the plain image. Mutation and crossover operators are implemented using the 16-bit subblocks of the 256-bit hash value. The scrambled image’s pixels are altered with the generated encryption key and previously encrypted pixels. Keyspace and sensitivity, histogram, correlation, information entropy, differential, data loss, noise attack, and computational time analyzes are performed to test the safety and effectiveness of the encryption method. The experiments and simulation results show that the proposed encryption technique is highly secure and efficient since it can resist various attacks.

Keywords

HİPERKAOTİK HARİTA VE GENETİK OPERATÖRLERE DAYALI YENİ BİR GÖRÜNTÜ ŞİFRELEME YÖNTEMİ

Öz

Bu makale, yeni ve güvenli bir görüntü şifreleme yöntemi sunmaktadır. Düz görüntünün pikselleri, genetik algoritmaların N noktalı çaprazlama işlemi kullanılarak karıştırılır. Rastgele eşleştirilmiş satırlar ve sütunlar, altı boyutlu bir hiper kaotik haritanın iki durum değişkeni tarafından belirlenir. Hiperkaotik haritanın diğer iki durum değişkeni tarafından hesaplanan geçiş noktalarının sayısı, her satır veya sütun çifti için birbirinden farklıdır. Geçiş konumları, son iki durum değişkeni yardımıyla geçiş noktalarının sayısına göre belirlenir. Önerilen algoritma, düz görüntünün SHA-256 hash değerini kullanarak difüzyon aşamasının şifreleme anahtarını üretir. Mutasyon ve çaprazlama operatörleri, 256 bitlik hash değerinin 16 bitlik alt blokları kullanılarak gerçekleştirilir. Karıştırılan görüntünün pikselleri, oluşturulan şifreleme anahtarı ve önceden şifrelenmiş piksellerle değiştirilir. Şifreleme yönteminin güvenliğini ve etkinliğini test etmek için anahtar alanı ve duyarlılığı, histogram, korelasyon, bilgi entropisi, diferansiyel, veri kaybı, gürültü saldırısı ve hesaplama süresi analizleri yapılır. Deneyler ve simülasyon sonuçları, önerilen şifreleme tekniğinin çeşitli saldırılara karşı koyabilmesi nedeniyle oldukça güvenli ve verimli olduğunu göstermektedir.

Anahtar Kelimeler

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Elektrik Mühendisliği

Bölüm

Araştırma Makalesi

Yazarlar

Mehmet Demirtas ^*
0000-0002-9018-3124
Türkiye

Yayımlanma Tarihi

15 Mart 2023

Gönderilme Tarihi

22 Kasım 2022

Kabul Tarihi

25 Ocak 2023

Yayımlandığı Sayı

Yıl 2023 Cilt: 26 Sayı: 1

DOI

https://doi.org/10.17780/ksujes.1208570

IZ

https://izlik.org/JA48BS37EA

Kaynak Göster

RIS / Bibtex

APA

Demirtas, M. (2023). A NEW IMAGE ENCRYPTION METHOD BASED ON A 6D HYPERCHAOTIC MAP AND GENETIC OPERATORS. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 26(1), 261-278. https://doi.org/10.17780/ksujes.1208570

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https://doi.org/10.17780/ksujes.1412850