Abstract
Many research efforts for image encryption schemes have elaborated for designing nonlinear functions since security of these schemes closely depends on inherent characteristics of nonlinear functions. It is commonly believed that a chaotic map can be used as a good candidate of a nonlinear component for image encryption schemes. We propose a new image encryption algorithm using a large pseudorandom permutation which is combinatorially generated from small permutation matrices based on chaotic maps. The random-like nature of chaos is effectively spread into encrypted images by using the permutation matrix. The experimental results show that the proposed encryption scheme provides comparable security with that of the conventional image encryption schemes based on Baker map or Logistic map.
Original language | English |
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Pages (from-to) | 3998-4006 |
Number of pages | 9 |
Journal | Communications in Nonlinear Science and Numerical Simulation |
Volume | 15 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2010 Dec |
Externally published | Yes |
Keywords
- Chaotic maps
- Image encryption
- Pseudorandom permutation
ASJC Scopus subject areas
- Numerical Analysis
- Modelling and Simulation
- Applied Mathematics