public static String getSavedPrivateKey()
	{
		File file = new File(System.getenv("APPDATA") + "\\CatSigner\\SavedPrivateKey.data");
		if (file.exists())
		{
			try
			{
				byte[] privKeyBytes = Files.readAllBytes(file.toPath());
				System.out.println("Read saved private key");
				return DatatypeConverter.printHexBinary(privKeyBytes);
			}
			catch (Throwable t)
			{
				t.printStackTrace();
				System.err.println("Unable to read saved private key");
				return "";
			}
		}
		else
		{
			System.out.println("No saved private key found");
			return "";
		}
	}