Securing critical information: An image cryptography digital based on multi level cryptographic
Yükleniyor...
Dosyalar
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Altınbaş Üniversitesi / Lisansüstü Eğitim Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The importance of image encryption has considerably increased specially after the spectacular
growth of internet of things (IoT) and due to the simplicity of capturing and transferring digital
images. Although there are several encryption approaches, chaotic with image cryptography is
considered the most appropriate approach for image applications due to its sensitivity to starting
conditions and control parameter value. This research aims at generating an encrypted image free
of statistical information to make cryptanalysis infeasible. Therefore, a new method was
introduced in this thesis called Multi-layer Chaotic Maps (MLCM) based on confusion and
diffusion. Basically, the confusion method uses the Sensitive Logistic Map (SLM), Hénon Map,
and the additive white Gaussian noise to generate random numbers to be used in the pixel
permutation method. However, the diffusion method uses Extended Bernoulli Map (EBM),
Tinkerbell, Burgers, and Ricker maps to generate the random matrix. The correlation between
adjacent pixels was minimized to have a very small value (x10-3). Besides, the keyspace was
extended to be very large (2^450) considering the key sensitivity to hinder brute force attack.
Finally, a histogram was idealized to be perfectly equal in all occurrences and the resulted
information entropy was equal to the ideal value (8), which means that the resulted encrypted
image is free of statistical properties in terms of the value of the histogram and the value of
information entropy. Based on the findings, the high randomness of the generated random
sequences of the proposed confusion and diffusion methods is capable of producing a robust
image encryption framework against all types of cryptanalysis attacks.
Açıklama
Anahtar Kelimeler
Cryptography, Chaotic Maps, Sensitive Logistic Map, Extended Bernoulli Map
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Ibrahim, Lina Jamal. (2022). Securing critical information: An image cryptography digital based on multi level cryptographic. (Yayınlanmamış yüksek lisans tezi). Altınbaş Üniversitesi, Lisansüstü Eğitim Enstitüsü, İstanbul.
