Digital secure-communication using robust hyper-chaotic systems

Shih Liang Chen*, Shu-Ming Chang, Wen-Wei Lin, Tingting Hwang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


In this paper, we propose a robust hyper-chaotic system that is suitable for digital secure-communication. The system consists of many coupled robust logistic maps that form a hyper-chaotic system. It has a higher degree of complexity than traditional discrete-time secure-communication systems that use only a single map. Moreover, the system has a very large parameter space which grows along with system precision. Hence, attacking the system by the method of map reconstruction in current computation technology is not feasible. Statistical analysis shows that the system achieves very high security level. Finally, two hardware architectures (multiple-cycle and pipelined) are proposed for area and performance optimization, respectively.

Original languageEnglish
Pages (from-to)3325-3339
Number of pages15
JournalInternational Journal of Bifurcation and Chaos
Issue number11
StatePublished - 1 Jan 2008


  • Chaotic encryption
  • Digital communication
  • Logistic map


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