private void encryptFile_Button_Click(object sender, RoutedEventArgs e)
{
string inputFileError = ValidateInputPath(inputFile_TextBox.Text);
string outputFileError = validateOutputPath(outputFile_TextBox.Text);
if (inputFileError != null)
{
MessageBox.Show(inputFileError);
return;
}
if (outputFileError != null)
{
MessageBox.Show(outputFileError);
return;
}
try
{
FileEncryption.targetUsers = recipientsListBox.Items.Cast <User>().ToList();
FileEncryption.mode = GetSelectedCipherMode();
FileEncryption.keySize = Int32.Parse(keySize_TextBox.Text);
//FileEncryption.key = GetAnuBytes(FileEncryption.keySize >> 3);
FileEncryption.bufferSize = 1 << 15;
FileEncryption.blockSize = Int32.Parse(blockSize_TextBox.Text);
FileEncryption.iv = GetAnuBytes(16);
FileEncryption.InitializeEncryption(inputFile_TextBox.Text, outputFile_TextBox.Text);
}
catch (Exception ex)
{
MessageBox.Show("Error during decryption: " + ex);
}
}
public static void generateKeyPair(string publicKeyPath, string privateKeyPath, string privateKeyPassword)
{
using (var rsa = new RSACryptoServiceProvider(1024))
{
try
{
File.WriteAllText(publicKeyPath, rsa.ToXmlString(false));
byte[] passwordHash = generateHash(privateKeyPassword);
//content to write = AES.ECB.encrypt(rsa.ToXmlString(true), passwordHash)
byte[] priv = FileEncryption.encryptPrivateKey(rsa.ToXmlString(true), passwordHash);
File.WriteAllBytes(privateKeyPath, priv);
//File.WriteAllText(privateKeyPath, rsa.ToXmlString(true));
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
finally
{
rsa.PersistKeyInCsp = false;
}
}
}
private void decryptionInputButton_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
if (openFileDialog.ShowDialog() == true)
{
decryptionInputFileBox.Text = openFileDialog.FileName;
FileEncryption.loadPossibleRecipientsAndFileType(openFileDialog.FileName, decryptionRecipientsList, extension_Label);
}
}
public static Key loadPrivateKey(string path, string password)
{
byte[] encryptedContent = File.ReadAllBytes(path);
byte[] passwordHash = generateHash(password);
// byte[] decryptedContent = AES.ECB.decrypt(encryptedContent, passwordHash);
// return new Key(Encoding.UTF8.GetString(decryptedContent))
string decryptedConten = FileEncryption.decryptPrivateKey(encryptedContent, passwordHash);
//return new Key(File.ReadAllText(path));
return(new FileEncryptionTool.RSA.Key(decryptedConten));
}
private void DecryptFile_Button_Click(object sender, RoutedEventArgs e)
{
string inputFileError = ValidateInputPath(decryptionInputFileBox.Text);
string outputFileError = validateOutputPath(decryptionOutputFileBox.Text);
if (inputFileError != null)
{
MessageBox.Show(inputFileError);
return;
}
if (outputFileError != null)
{
MessageBox.Show(outputFileError);
return;
}
try
{
FileEncryption.bufferSize = 1 << 15;
//FileEncryption.key = GetAnuBytes(32);
User selectedUser = (User)decryptionRecipientsList.SelectedItem;
if (selectedUser == null)
{
MessageBox.Show("A user was not chosen");
return;
}
string password = decryptionPassword.Password;
FileEncryption.InitializeDecryption(decryptionInputFileBox.Text, decryptionOutputFileBox.Text, selectedUser, password);
}
catch (Exception ex)
{
MessageBox.Show("Error encountered during decryption");
}
}
