abstract

• The technique of detrended fluctuation analysis (DFA) has been widely used to unveil scaling properties of many different signals. In this paper, we determine scaling properties in the encrypted images by means of a two-dimensional DFA approach. To carry out the image encryption, we use an enhanced cryptosystem based on a rule-90 cellular automaton and we compare the results obtained with its unmodified version and the encryption system AES. The numerical results show that the encrypted images present a persistent behavior which is close to that of the 1/f-noise. These results point to the possibility that the DFA scaling exponent can be used to measure the quality of the encrypted image content. © 2015 World Scientific Publishing Company.

authors

• González Aguilar Hernán
• Mejía Carlos Marcela
• Murguía Ibarra José Salomé
• Ramírez Torres Marco Tulio
• Rosu H.C.
• Vargas-Olmos C.

publication date

• 2015-01-01

published in

• International Journal of Modern Physics C  Journal

keywords

• Encryption system; scaling laws; two-dimensional DFA

Digital Object Identifier (DOI)

• 10.1142/S012918311550093X

start page

end page

volume

• 26

issue

• 8