//Open file and store it path...
private void Button2_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
if (ofd.ShowDialog() == DialogResult.OK)
{
textBox1.Text = ofd.SafeFileName;
fileName = ofd.FileName;
Debug.WriteLine($"FilePath: {filepath} ");
try
{
bff = new BootloaderFile(fileName);
string result = BitConverter.ToString(bff.IV);
Debug.WriteLine($"{ bff.ToFancyString()} IV: {result} ");
richTextBox1.Text = bff.ToFancyString();
isClickedButton2 = true;
if (isClickedButton3 == true)
{
button1.Enabled = true;
}
}
catch (Exception ex)
{
Restart_Params(RESTART_FILE_PARAMS);
UpdateStatus(true, ex.Message);
button1.Enabled = false;
}
}
}
private static void RunOptions(Options opts)
{
var inputFilePath = opts.InputFilePath;
var keyFilePath = opts.KeyFilePath;
var manufacturerName = opts.ManufacturerName;
var version = opts.Version;
var outputFilePath = opts.OutputFilePath;
uint startAddr = 0;
uint endAddr = 0;
// check ManufacturerName length
if (manufacturerName.Length > 31)
{
throw new ConstraintException("Manufacturer name is too long (max: 31)");
}
// parse startAddr and endAddr
try
{
startAddr = Convert.ToUInt32(opts.StartAddr, 16);
}
catch (FormatException)
{
startAddr = Convert.ToUInt32(opts.StartAddr);
}
try
{
endAddr = Convert.ToUInt32(opts.EndAddr, 16);
}
catch (FormatException)
{
endAddr = Convert.ToUInt32(opts.EndAddr);
}
// read firmware binary
var rawFirmwareBinaryList = new List <byte>();
using (var binaryReader =
new BinaryReader(new FileStream(inputFilePath, FileMode.Open, FileAccess.Read, FileShare.Read)))
{
while (true)
{
byte tempByte;
try
{
tempByte = binaryReader.ReadByte();
}
catch (EndOfStreamException)
{
break;
}
rawFirmwareBinaryList.Add(tempByte);
}
}
while (rawFirmwareBinaryList.Count % 16 != 0)
{
rawFirmwareBinaryList.Add(0);
}
// calculate CRC32
var addrCrc = Crc32Algorithm.Compute(BitConverter.GetBytes(startAddr).Concat(BitConverter.GetBytes(endAddr)).ToArray());
var dataCrc = Crc32Algorithm.Compute(rawFirmwareBinaryList.ToArray());
var firstBlock =
BitConverter.GetBytes(addrCrc)
.Concat(BitConverter.GetBytes(startAddr))
.Concat(BitConverter.GetBytes(endAddr))
.Concat(BitConverter.GetBytes(dataCrc));
// read key
byte[] key;
using (var binaryReader = new BinaryReader(new FileStream(keyFilePath, FileMode.Open, FileAccess.Read, FileShare.Read)))
{
key = binaryReader.ReadBytes(32);
}
// create BootloaderFile
var file = new BootloaderFile();
// encrypt
var encryptedBinary = Utilities.Encrypt(
firstBlock.Concat(rawFirmwareBinaryList).ToArray(),
key,
ref file
);
file.Data = encryptedBinary.Skip(16).ToArray();
file.ManufacturerName = manufacturerName;
file.FirstBlock = encryptedBinary.Take(16).ToArray();
// parse version
var splitVersion = version.Split(".");
for (var i = 0; i < 4; i++)
{
file.FirmwareVersion[i] = ushort.Parse(splitVersion[i]);
}
file.WriteBootloaderFile(outputFilePath);
Console.WriteLine(file.ToFancyString());
Console.Write("IV: ");
}
