Two-level chaos-based video cryptosystem on H.263 codec

Zengqiang Chen, W. H. Ip, Ching Yuen Chan, Kai Leung Yung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

25 Citations (Scopus)


Chaos-based video encryption algorithms are designed based on selective encryption method. Different from many prevailing MPEG-based video encryption designs, this paper lays out a scheme for a two-level H.263-based video cryptosystem, which skillfully combines the traditional selective encryption algorithm with permutation and subsequent masking operation of the coded H.263-based stream. Lastly, the implementation of the proposed cryptosystem on a local area network (LAN) strongly illustrates the efficiency and feasibility of the two-level chaos-based cryptosystem for practical use in many respects, including processing speed, compression ratio, quality of reconstructed image and security level.
Original languageEnglish
Pages (from-to)647-664
Number of pages18
JournalNonlinear Dynamics
Issue number3
Publication statusPublished - 1 Nov 2010


  • Baker map
  • Chaos-based video cryptosystem
  • H.263 codec
  • Hyperchaos
  • Permutation and masking

ASJC Scopus subject areas

  • Applied Mathematics
  • Mechanical Engineering
  • Aerospace Engineering
  • Ocean Engineering
  • Electrical and Electronic Engineering
  • Control and Systems Engineering


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