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An image Encryption Algorithm resistant to attacks using Chaotic Maps

Anchal Jain, Navin Rajpal


Chaotic maps are effectively useful in image encryption techniques due to their sensitivity to the input conditions and non–linear and deterministic natures. A number of chaotic image encryption techniques exist in literature. In this paper, a new image encryption technique using a chaotic logistic map and 80 bit external key has been proposed which has been evaluated in terms of resistance to statistical attacks using histogram analysis and correlation coefficients. Key sensitivity and key space analysis has been used to demonstrate its effectiveness for image security. The proposed technique has also been analyzed for entropy measurement and various attacks on cipher image like block loss and introduction of noise as well.


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