Class: Key::SCKey

Inherits:

SKey

• Object
• Key
• SKey
• Key::SCKey

show all

Includes:

Crypto

Defined in:

lib/key/sckey.rb

Overview

Constant Summary

BASE =

'ABCDEFGHIJKLMNOPQRSTUVWXYZ/-'

Instance Attribute Summary (collapse)

• - (Object) full_key readonly

  Returns the value of attribute full_key.

• - (Object) longc readonly

  Returns the value of attribute longc.

• - (Object) shortc readonly

  Returns the value of attribute shortc.

Attributes inherited from SKey

#alpha, #ralpha

Instance Method Summary (collapse)

• - (Object) gen_rings

  gen_rings.

• - (SCKey) initialize(key, longc = [ 8, 9 ]) constructor

  A new instance of SCKey.

• - (Boolean) is_long?(digit)

  is_long?.

Methods included from Crypto

#addmod10, #chainadd, #expand5to10, #find_hole, #keyshuffle, #normalize, #p1_encode, #str_to_numeric, #submod10

Methods inherited from SKey

#decode, #encode

26
27
28
29
30
31

# File 'lib/key/sckey.rb', line 26

def initialize(key, longc = [ 8, 9 ])
  super(key)
  @longc = longc
  @full_key = keyshuffle(@key, BASE)
  gen_rings()
end

24
25
26

# File 'lib/key/sckey.rb', line 24

def full_key
  @full_key
end

24
25
26

# File 'lib/key/sckey.rb', line 24

def longc
  @longc
end

24
25
26

# File 'lib/key/sckey.rb', line 24

def shortc
  @shortc
end

45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62

# File 'lib/key/sckey.rb', line 45

def gen_rings
  shortc = (0..9).collect{|i| i unless @longc.include?(i) }.compact
  raise DataError if shortc.nil?
  long = @longc.collect{|i| (0..9).collect{|j| i*10+j } }.flatten
  raise DataError if long.nil?
  @shortc = shortc.dup

  word = @full_key.dup
  word.scan(/./) do |c|
    if 'ESANTIRU'.include? c then
      ind = shortc.shift
    else
      ind = long.shift
    end
    @alpha[c] = ind.to_s
    @ralpha[ind.to_s] = c
  end
end

66
67
68

# File 'lib/key/sckey.rb', line 66

def is_long?(digit)
  return @longc.include?(digit)
end