ruby rijndael encryption - add IV

crypt_rijndael_add_iv.rb

module Crypt
  class Rijndael
    def vector() @vector; end 

    alias orig_initialize initialize
    def initialize(key, vector, keyBits = 256, blockBits = 128)
      @vector = vector
      orig_initialize(key, keyBits, blockBits)
    end 

    alias orig_generate_initialization_vector generate_initialization_vector
    def generate_initialization_vector( *p )
      @vector || orig_generate_initialization_vector( *p )
    end 

    def iv_length() block_size; end 

  end 
end