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Substitution cipher text-encoding and un-encoding software and method

  • US 20080112559A1
  • Filed: 11/01/2006
  • Published: 05/15/2008
  • Est. Priority Date: 11/01/2006
  • Status: Active Grant
First Claim
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1. A method of encoding or un-encoding characters comprising:

  • receiving an input keyword string;

    removing superfluous characters in the input keyword string which are not in a pre-approved character set to thereby form a truncated keyword string; and

    removing duplicate characters in the truncated keyword string to form a validated keyword.

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