Method: CryptoToolchain::BlackBoxes::MT19937StreamCipher#keystream

Defined in:
lib/crypto_toolchain/black_boxes/mt_19937_stream_cipher.rb

#keystream ⇒ Object 



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# File 'lib/crypto_toolchain/black_boxes/mt_19937_stream_cipher.rb', line 33

def keystream
  return @keystream if defined? @keystream
  _keystream = (0..(plaintext.bytesize / 4)).each_with_object("") do |_, memo|
    memo << [prng.extract].pack("L")
  end
  @keystream = _keystream[0...(plaintext.bytesize)]
end