class ZuoraConnect::AppInstanceBase

def fetch_cipher(type)
  raise "Type must be set to 'encrypt' or 'decrypt'" if !['decrypt','encrypt'].include?(type)
  cipher = OpenSSL::Cipher.new('AES-256-CBC')
  cipher.send(type)
  cipher.key = self.decrypted_data_key
  cipher.iv = Base64.strict_decode64(self.iv_key)
  return cipher
end