private async void Decypher_Click(object sender, RoutedEventArgs e)
{
string errors = "";
if (inputPath == "")
{
errors += "No input file specified\n";
}
if (outputPath == "")
{
errors += "No output file specified\n";
}
if (loggedUser == "")
{
errors += "No logged user\n";
}
if (errors != "")
{
MessageBox.Show(errors, "Error", MessageBoxButton.OK);
return;
}
string tempFile = System.IO.Path.GetTempFileName();
using (var input = File.OpenRead(inputPath))
{
using (var reader = XmlReader.Create(input))
{
aes = FilesManager.FromXml(reader, aes);
using (var output = File.OpenWrite(tempFile))
{
input.Position = (reader as IXmlLineInfo).LinePosition + "</Header>".Length;//Set proper position beacues xmlReader loads to much
Task copyTask = input.CopyToAsync(output);
//new Thread(() => StartUpdatingprogress(source, copyTask)).Start();
long length = input.Length;
do
{
double position = (double)input.Position;
pbStatus.Value = (position / length) * 100;
}while (!copyTask.IsCompleted);
pbStatus.Value = 100;
copyTask.Wait();
}
}
}
using (var input = File.OpenRead(tempFile))
{
using (var decryptedStream = aes.DecrypteStream(input, loggedUser, LogInPassword.Text))
{
if (decryptedStream == null)
{
return;
}
using (var output = File.OpenWrite(outputPath))
{
Task copyTask = decryptedStream.CopyToAsync(output);
long length = input.Length;
do
{
double position = (double)input.Position;
pbStatus.Value = (position / length) * 100;
}while (!copyTask.IsCompleted);
pbStatus.Value = 100;
await copyTask;
}
}
}
}
private async void Cypher_Click(object sender, RoutedEventArgs e)
{
try
{
string errors = "";
if (inputPath == "")
{
errors += "No input file specified\n";
}
if (outputPath == "")
{
errors += "No output file specified\n";
}
if (aes.cipherMode == 0)
{
errors += "No cipher mode specified\n";
}
if (pendingRecipents == null || pendingRecipents.Count == 0)
{
errors += "No Recipient was assigned\n";
}
if (errors != "")
{
MessageBox.Show(errors, "Error", MessageBoxButton.OK);
return;
}
//INITIALIZE
FileInfo info = new FileInfo(Path.GetTempFileName());
int randomValue;
byte[] buffer = new byte[4];
random.NextBytes(buffer);
randomValue = BitConverter.ToInt32(buffer, 0);
string basePassword = String.Format("{0}{1}", DateTime.Now, randomValue);
byte[] salt1 = new byte[8];
using (RNGCryptoServiceProvider rngCsp = new
RNGCryptoServiceProvider())
{
// Fill the array with a random value.
rngCsp.GetBytes(salt1);
}
const int Iterations = 400;
var keyGenerator = new Rfc2898DeriveBytes(basePassword, salt1, Iterations);
aes.key = keyGenerator.GetBytes(aes.keySize);
keyGenerator = new Rfc2898DeriveBytes(basePassword.Reverse().ToString(), salt1, Iterations);
buffer = new byte[16];
random.NextBytes(buffer);
aes.iV = buffer;
// END OF INITIALIZE
foreach (string nickname in pendingRecipents)
{
aes.addUser(nickname);
}
using (var output = File.Open(outputPath, FileMode.Create))
{
using (var xmlOutput = XmlWriter.Create(output))
{
xmlOutput.WriteStartDocument();
FilesManager.WriteToXml(xmlOutput, aes);
xmlOutput.Flush();
xmlOutput.WriteEndDocument();
}
using (var source = File.Open(inputPath, FileMode.Open))
{
using (var sourceEncypted = aes.EncrypteStream(source))
{
Task copyTask = sourceEncypted.CopyToAsync(output);
//new Thread(() => StartUpdatingprogress(source, copyTask)).Start();
long length = source.Length;
do
{
double position = (double)source.Position;
pbStatus.Value = (position / length) * 100;
}while (!copyTask.IsCompleted);
pbStatus.Value = 100;
await copyTask;
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK);
}
}
