public void Encrypt(string path)
{
string keyPath = KeyStorage.Instance().GetKeyPath();
Console.WriteLine($"Encrypting the file using {keyPath} key");
using (var rsa = new RSACryptoServiceProvider())
{
try
{
rsa.FromXmlString(File.ReadAllText(keyPath));
byte[] bytesToEncrypt = File.ReadAllBytes(path);
byte[] encrypted = rsa.Encrypt(bytesToEncrypt, false);
var pureFileName = Path.GetFileName(path).Split('.')[0];
File.WriteAllBytes($"{pureFileName}_ENCRYPTED.txt", encrypted);
Process.Start("explorer.exe", Directory.GetCurrentDirectory());
}
catch (Exception exception)
{
MessageBox.Show("Nieprawidłowy klucz!");
}
}
}
public void Decrypt()
{
string keyPath = KeyStorage.Instance().GetKeyPath();
Console.WriteLine($"Decrypting the file using {keyPath} key");
using (var rsa = new RSACryptoServiceProvider())
{
rsa.FromXmlString(File.ReadAllText(keyPath));
byte[] bytesToDecrypt = File.ReadAllBytes(filePath);
try
{
byte[] decrypted = rsa.Decrypt(bytesToDecrypt, false);
var decryptedString = Encoding.UTF8.GetString(decrypted);
var pureFileName = Path.GetFileName(filePath).Split('.')[0].Split('_')[0];
var extension = Path.GetFileName(filePath).Split('.')[1];
File.WriteAllText($"{pureFileName}_DECRYPTED.{extension}", decryptedString);
Process.Start("explorer.exe", Directory.GetCurrentDirectory());
}
catch (Exception exception)
{
MessageBox.Show("Nieprawidłowy klucz!");
}
}
}
private void RefreshAvailableKeys()
{
KeysListBox.Items.Clear();
foreach (var keyFileName in KeyStorage.GetKeysInDirectory())
{
var item = new ListBoxItem();
var displayedName = "";
var pureName = keyFileName.Split('.')[0].Split('_')[0];
var fileSufix = keyFileName.Split('.')[0].Split('_')[1];
displayedName += pureName;
if (fileSufix == "PRIVATE")
{
displayedName = "🔒 " + displayedName;
}
else
{
displayedName = " " + displayedName;
}
item.Selected += KeyStorage.Instance().ChooseKey;
item.Selected += ChangeButtonsState;
item.MouseDoubleClick += DisplayKeyInfo;
item.Content = displayedName;
item.Tag = keyFileName;
KeysListBox.Items.Add(item);
}
}
private void CopyButton_OnClick(object sender, RoutedEventArgs e)
{
var keyPath = KeyStorage.Instance().GetKeyPath();
Clipboard.SetText(File.ReadAllText(keyPath));
Close();
}
public static KeyStorage Instance()
{
if (_instance == null)
{
_instance = new KeyStorage();
}
return(_instance);
}
private void InitializeData()
{
var keyPath = KeyStorage.Instance().GetKeyPath();
KeyNameText.Text = "Nazwa: " + Path.GetFileName(keyPath);
KeyCreationDateText.Text = "Stworzono: " + new FileInfo(keyPath).CreationTime.ToString();
var rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(File.ReadAllText(keyPath));
KeySizeText.Text = "Rozmiar: " + rsa.KeySize.ToString();
}
private void GenerateKeysButton_OnClick(object sender, RoutedEventArgs e)
{
Console.WriteLine("Generating asymetric keys...");
var selected = (ComboBoxItem)AvailableSizeOptions.SelectedItem;
var rsa = new RSACryptoServiceProvider((int)selected.Tag);
var publicKey = rsa.ToXmlString(false);
var privateKey = rsa.ToXmlString(true);
var fileName = $"{KeyName.Text}_PRIVATE";
KeyStorage.SaveKeyToFile(fileName, privateKey);
fileName = $"{KeyName.Text}_PUBLIC";
KeyStorage.SaveKeyToFile(fileName, publicKey);
refreshAvailableKeys.Invoke();
Close();
}
