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Electronic encryption device and method

  • US 6,078,665 A
  • Filed: 10/21/1997
  • Issued: 06/20/2000
  • Est. Priority Date: 09/09/1996
  • Status: Expired due to Fees
First Claim
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1. A data encryption and decryption system comprising:

  • a. means for selecting a set of parameters from a predetermined parameter space;

    b. means for inserting the parameters into chaotic equations of the form;

    
    
    space="preserve" listing-type="equation">x'"'"'=-σ

    x+σ

    y
    
    
    space="preserve" listing-type="equation">y'"'"'=rx-y-xz
    
    
    space="preserve" listing-type="equation">z'"'"'=-bz+xy where x'"'"', y'"'"' and z'"'"' are numeric results and x, y, z, σ

    , r and b are parameters;

    c. means for iterating the chaotic equations to derive x'"'"', y'"'"' and z'"'"' iterate streams;

    d. means for testing at least one of the iterate streams for chaotic behavior;

    e. means for deriving a cipher number from the iterate streams; and

    f. means for xoring the cipher number with the data.

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