Description: Abstract: According t o the characteristic of higher secrecy of high2 di mensi on chaotic system, a new col our i mage
encryp ti on algorithm based on unified chaotic system and general cat map s was p r oposed . Firstly, tricol or scrambling
transformati on was realized respectively in s pace domain by using the general cat map s . Then the three chaotic sequences of
unified chaotic system were adop ted t o realize the tricol or Substituti on transformati on p ixel by p ixel . The results demonstrate
that the algorithm has good p roperties of confusi on and diffusi on . The key space is large enough t o resist the brute2 force attack .
For the encryp ted i mage the distributi on of p ixel2 values has a random2like behavi or and the values of adjacent p ixels satisfy
zero correlati on, showing that the p r oposed scheme is of high security .
Key words: col our i mage encryp ti on unified chaotic system general catmap tricol or scrambling
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一种基于高维混沌系统的彩色图像加密新算法.pdf
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