Image Encryption Using Chaos and Block Cipher | Zendy

Alireza Jolfaei | Zendy; Abdolrasoul Mirghadri | Zendy

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Image Encryption Using Chaos and Block Cipher

Author(s) -

Alireza Jolfaei,

Abdolrasoul Mirghadri

Publication year - 2010

Publication title -

computer and information science

Language(s) - English

Resource type - Journals

eISSN - 1913-8997

pISSN - 1913-8989

DOI - 10.5539/cis.v4n1p172

Subject(s) - encryption , computer science , shuffling , block cipher , histogram , advanced encryption standard , s box , cipher , security analysis , chaotic , scrambling , pixel , algorithm , chaos (operating system) , theoretical computer science , image (mathematics) , artificial intelligence , computer security , programming language

In this paper, a novel image encryption scheme is proposed based on combination of pixel shuffling and new modified version of simplified AES. Chaotic baker’s map is used for shuffling and improving S-AES efficiency through S-box design. Chaos is used to expand diffusion and confusion in the image. Due to sensitivity to initial conditions, chaotic baker’s map has a good potential for designing dynamic permutation map and S-box. In order to evaluate performance, the proposed algorithm was measured through a series of tests. These tests included visual test and histogram analysis, randomness test, information entropy, encryption quality, correlation analysis, differential analysis and sensitivity analysis. Experimental results show that the new cipher has satisfactory security and is more efficient than AES which makes it a potential candidate for encryption of multimedia data.

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