err := os.Rename(outputFileName, outputFileName+"."+time.Now().Format("20060102150405"))
		if err != nil {
			fatalErr(err)
		}
	}

	// Open the input and create the output file
	input, err := os.Open(inputFileName)
	fatalErr(err)
	defer input.Close()
	output, err := os.Create(outputFileName)
	fatalErr(err)

	// Decrypt the inspect data
	msg := fmt.Sprintf("output written to %s", outputFileName)