A fast multiple-image encryption algorithm based on hybrid chaotic systems for gray scale images

摘要

This paper proposes a fast and efficient multiple-image encryption based on chaotic system. The combination chaotic system is used to produce pseudorandom sequences to replace the subblocks of the plain images and then they are combined together. The subblocks of the combined image are replaced by applying the chaos sequences which are generated with combination chaotic system. Also, to achieve the encrypted image Arnold cat map and some operations including XOR and cyclic shift are used. Simulations and analysis outcomes are shown that the proposed algorithm can resist against the different attacks strongly and efficiently.