A chaos-based cryptographic hash function for message authentication

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)4043-4050
Journal / PublicationInternational Journal of Bifurcation and Chaos
Issue number12
Publication statusPublished - Dec 2005


In this paper, a chaos-based cryptographic hash function is proposed for message authentication where a fixed length message digest can be generated from any messages with arbitrary length. The compression function in-use is developed according to the diffusion and confusion properties of a novel high-dimensional discrete chaotic map. A symmetric key structure can also be easily embedded based on the high sensitivity to initial conditions and system parameters of the map. As demonstrated in experiments, the throughput of the proposed scheme is about 1.5 times of that with MD5, and the hash value appears randomly without any correlation with the message or the key. © World Scientific Publishing Company.

Research Area(s)

  • Chaos, Hash function, Message authentication