}
	privatePem, err := os.Create("support_private.pem")
	if err != nil {
		fmt.Printf("error when create private.pem: %s n", err)
		os.Exit(1)
	}
	err = pem.Encode(privatePem, privateKeyBlock)
	if err != nil {
		fmt.Printf("error when encode private pem: %s n", err)
		os.Exit(1)
	}

	// dump public key to file
	publicKeyBytes := x509.MarshalPKCS1PublicKey(&privatekey.PublicKey)
	if err != nil {

						filemap[file][verID+".json"] = buf.String()
					}
					return nil
				})
				if err != nil {
					return nil, err
				}
				enc := json.NewEncoder(buf)
				if err := enc.Encode(struct {
					Versions []version
				}{Versions: versions}); err != nil {
					return nil, err
				}
				data = b
			default:
				return nil, fmt.Errorf("unknown metadata version %d", minor)
			}