Mcrypt using CFB

mcrypttest.ex

defmodule Mcrypttest do
  @algo :rijndael_256
  @mode :cfb
  @key "00000000000000000000000000000000"
  @iv "00000000000000000000000000000000"

  def encrypt(plaintext) do
    Mcrypt.encrypt(plaintext, @algo, @mode, @key, @iv)
  end

  def decrypt(ciphertext) do
    Mcrypt.decrypt(ciphertext, @algo, @mode, @key, @iv)
  end

end

{:ok, bin} = Mcrypttest.encrypt "mujju"
# => {:ok, <<50, 161, 213, 87, 56>>}
Mcrypttest.decrypt bin
# => {:ok, "mujju"}