An image encryption scheme employing key related skipping

Autor: Lubos Ovsenik, Jakub Oravec, Tomáš Huszaník, Jan Turan
Rok vydání: 2018
Předmět:
Zdroj: Journal of Electrical Engineering. 69:93-105
ISSN: 1339-309X
DOI: 10.2478/jee-2018-0013
Popis: This paper describes an image encryption algorithm which utilizes chaotic logistic map. Values generated by this map are used in two steps of algorithm which shuffles image pixels and then changes their intensities. Design of the encryption scheme considers possibility of various attacks, such as statistical, differential or phase space reconstruction attacks. Robustness against last mentioned type of attacks is introduced by selective skipping of values generated by the map. This skipping depends on key entered by user. The paper also verifies properties of proposed algorithm by common measures and by set of statistical tests that examine randomness of computed encrypted images. Results are compared with other approaches and they are also briefly discussed.
Databáze: OpenAIRE