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Recently an image encryption scheme based on chaotic maps and memory cellular automata has been proposed. In this paper, the security of the scheme is evaluated and it is demonstrated that the schem...
Permutation is widely used in cryptographic algorithm. Recently, a number of candidate instructions have been proposed to efficient compute arbitrary bit permutations. Among these, we present the most...
This paper presents a novel chaos-based cryptosystem for secure transmitted images. In the proposed block encryption/decryption algorithm, two chaotic permutation methods (key-dependant shift approach...
Pixels in an image are essentially constituted of two properties, position and colour. Pixel Property Separation, a radically different approach for Symmetric-key image encryption, separates these pr...
Recently, a chaos-based image encryption scheme called RCES (also called RSES) was proposed. This paper analyzes the security of RCES, and points out that it is insecure against the known/chosen-plai...
Recently four chaos-based image encryption schemes were proposed. Essentially, the four schemes can be classified into one class, which is composed of two basic parts: permutation of position and d...

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