Abstract
Chaos-based algorithms are proven to have advantages in image encryption. In this paper, a new algorithm mixing Logistic map, Henon map and Lorenz system is presented. Signals from two discrete chaotic maps, Logistic map and Henon map, are mixed proportionately and sent to a continuous Lorenz system to generate a chaotic sequence. Then, by masking the image data with this sequence, the encryption is realized fast and simply. Experimental tests are carried out with detailed analysis, which demonstrates the large key space, the good sensitivity to the key, the perfect diffusion and confusion properties of this new scheme.
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