class ComplexConfig::Encryption

def encrypt(text)
  @cipher.encrypt
  @cipher.key = @secret
  iv = @cipher.random_iv
  @cipher.auth_data = ""
  encrypted = @cipher.update(Marshal.dump(text))
  encrypted << @cipher.final
  [
    encrypted,
    iv,
    @cipher.auth_tag
  ].map { |v| base64_encode(v) }.join('--')
end