A Proposed Cryptosystem Algorithm Based on Two Different Chaotic Systems (PCA2CS) for Securing the Colored Images
نویسندگان
چکیده
In this paper, a proposed cryptosystem algorithm based on two different chaotic systems is presented. Chen's chaotic system and Henon chaotic system is used as different chaotic systems to obtain our proposed encryption algorithm; in order to meet the requirements of secure image transfer. The proposed encryption Algorithm will be designated as PCA2CS. It is applied on two different color's frequencies colored-images. The proposed algorithm (PCA2CS) contains confusion and diffusion procedures. Confusion procedure based on Chen 's chaotic system is used to shuffle the positions of pixels of the colored plain-image. Diffusion procedure based on mixing of Chen's chaotic system and Henon chaotic system is used to change the values of pixels of the shuffled-image. PCA2CS is applied on all color's channels of the image; Red, Green, and Blue with two modes of operations ECB and CFB. The expectant results of several experiments, statistical analysis, key sensitivity tests, NPCR and UACI analysis, and information entropy analysis will show that our proposed encryption algorithm (PCA2CS) is a good algorithm to provides an efficient and secure method for securing colored images.
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