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Enhanced Chaotic Key-Based Algorithm for Low-Entropy Image Encryption      
Yazarlar (4)
Erdem Yavuz
Istanbul Ticaret Üniversitesi, Türkiye
Rifat Yazici
Istanbul Ticaret Üniversitesi, Türkiye
Doç. Dr. Mustafa Cem KASAPBAŞI Doç. Dr. Mustafa Cem KASAPBAŞI
Istanbul Ticaret Üniversitesi, Türkiye
Ezgi Yamac
Istanbul Ticaret Üniversitesi, Türkiye
Devamını Göster
Özet
As computing power of today's computer enhances rapidly, secure encryption is getting harder and the need for powerful secure encryption methods becomes inevitable. To avoid brute-force attacks it is necessary to have a larger key space, which makes the chaotic systems more attractive. In order to sufficiently apply confusion and diffusion rules for an image data with any entropy structure, a two-dimensional chaotic system, which has high sensitivity to initial states, has been utilized in this study. The fact that adjacent pixels of an image have naturally close values makes it easier for crackers to perform statistical analysis. So, two chaotic functions are used to disrupt correlations among them, one for shuffling pixel positions and one for changing pixels values. Even with low entropy images the proposed algorithm has been proved to be more secure and faster than the previous algorithms. © 2014 IEEE.
Anahtar Kelimeler
chaos | image encryption | entropy
Makale Türü Özgün Makale
Makale Alt Türü Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale
Dergi Adı 2014 22ND SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU)
Dergi ISSN 2165-0608
Makale Dili İngilizce
Basım Tarihi 01-2014
Sayı 1
Sayfalar 385 / 388
DOI Numarası 10.1109/SIU.2014.6830246