Abstract

Cryptographic techniques or chaotic maps are the major pillars for digital image encryption. Pixels rearrangement in various dimensions can be very deceiving for the pernicious parties. In this paper, we have presented the color image encryption using different 3D chaotic maps, such as 3D logistic map, Henon map, Baker map and cross chaos map which are the further extension of 2D chaotic maps. The efficiency of these image encryption techniques is verified by the differential attack analysis and the time taken. NPCR (number of pixels change rate) and UACI (unified average changing intensity) have been chosen as the evaluation parameters.

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