One-way hash function construction based on chaotic map network

Huaqian Yang, Kwok-Wo Wong, Xiaofeng Liao, Yong Wang and Degang Yang

Chaos, Solitons & Fractals, 2009, vol. 41, issue 5, 2566-2574

Abstract: A novel chaotic hash algorithm based on a network structure formed by 16 chaotic maps is proposed. The original message is first padded with zeros to make the length a multiple of four. Then it is divided into a number of blocks each contains 4bytes. In the hashing process, the blocks are mixed together by the chaotic map network since the initial value and the control parameter of each tent map are dynamically determined by the output of its neighbors. To enhance the confusion and diffusion effect, the cipher block chaining (CBC) mode is adopted in the algorithm. Theoretic analyses and numerical simulations both show that the proposed hash algorithm possesses good statistical properties, strong collision resistance and high flexibility, as required by practical keyed hash functions.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:41:y:2009:i:5:p:2566-2574

DOI: 10.1016/j.chaos.2008.09.056

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