Class: Cyphr

Inherits:
Object
  • Object
show all
Defined in:
lib/cyphrb.rb

Overview

should use a module?

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cyphr

Returns a new instance of Cyphr.



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# File 'lib/cyphrb.rb', line 4

def initialize
  @cyph = {'a'=>'0', 'b'=>'1', 'c'=>'2', 'd'=>'3', 'e'=>'4', 'f'=>'5',
          'g'=>'6', 'h'=>'7', 'i'=>'8', 'j'=>'9', 'k'=>'p', 'l'=>'o',
          'm'=>'n', 'n'=>'m', 'o'=>'l', 'p'=>'k', 'q'=>'j', 'r'=>'i',
          's'=>'h', 't'=>'g', 'u'=>'f', 'v'=>'e', 'w'=>'d', 'x'=>'c',
          'y'=>'b', 'z'=>'a', '0'=>'q', '1'=>'r', '2'=>'s', '3'=>'t',
          '4'=>'u', '5'=>'v', '6'=>'w', '7'=>'x', '8'=>'y', '9'=>'z',
          'A'=>'Z', 'B'=>'Y', 'C'=>'X', 'D'=>'W', 'E'=>'V', 'F'=>'U',
          'G'=>'T', 'H'=>'S', 'I'=>'R', 'J'=>'Q', 'K'=>'P', 'L'=>'O',
          'M'=>'N', 'N'=>'M', 'O'=>'L', 'P'=>'K', 'Q'=>'J', 'R'=>'I',
          'S'=>'H', 'T'=>'G', 'U'=>'F', 'V'=>'E', 'W'=>'D', 'X'=>'C',
          'Y'=>'B', 'Z'=>'A'}
          
  @dcyph = {'0'=>'a', '1'=>'b', '2'=>'c', '3'=>'d','4'=>'e','5'=>'f',
          '6'=>'g', '7'=>'h', '8'=>'i', '9'=>'j', 'p'=>'k', 'o'=>'l',
          'n'=>'m', 'm'=>'n', 'l'=>'o', 'k'=>'p', 'j'=>'q', 'i'=>'r',
          'h'=>'s', 'g'=>'t', 'f'=>'u', 'e'=>'v', 'd'=>'w', 'c'=>'x',
          'b'=>'y', 'a'=>'z', 'q'=>'0', 'r'=>'1', 's'=>'2', 't'=>'3',
          'u'=>'4', 'v'=>'5', 'w'=>'6', 'x'=>'7', 'y'=>'8', 'z'=>'9',
          'Z'=>'A', 'Y'=>'B', 'X'=>'C', 'W'=>'D', 'V'=>'E', 'U'=>'F',
          'T'=>'G', 'S'=>'H', 'R'=>'I', 'Q'=>'J', 'P'=>'K', 'O'=>'L',
          'N'=>'M', 'M'=>'N', 'L'=>'O', 'K'=>'P', 'J'=>'Q', 'I'=>'R',
          'H'=>'S', 'G'=>'T', 'F'=>'U', 'E'=>'V', 'D'=>'W', 'C'=>'X',
          'B'=>'Y', 'A'=>'Z'}
end

Instance Method Details

#descram(str) ⇒ Object 



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# File 'lib/cyphrb.rb', line 34

def descram(str)
  str.gsub!(/[a-zA-Z0-9]/) { |match| @dcyph[match] }
end

#scram(str) ⇒ Object 



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# File 'lib/cyphrb.rb', line 30

def scram(str)
  str.gsub!(/[a-zA-Z0-9]/) { |match| @cyph[match] }
end