private void btnSetMasterKey_Click(object sender, RoutedEventArgs e)
{
string newKeyText = txtNewMasterKey.Text.Trim();
if ((string.IsNullOrEmpty(newKeyText)) || (newKeyText.Length < 3))
{
MessageBox.Show("ERROR: Master key not long enough. Key must be longer than 3 characters");
}
else
{
MSPWDStorage.SetMasterKeyFile(MSPWDCrypto.CreateMasterKey(txtNewMasterKey.Text.Trim()));
txtNewMasterKey.Text = string.Empty;
// Add the "delete master key" page back
if (!pvtPages.Items.Contains(tabSpecial))
{
pvtPages.Items.Add(tabSpecial);
}
if (!pvtPages.Items.Contains(tabAlpha))
{
pvtPages.Items.Add(tabAlpha);
}
if (!pvtPages.Items.Contains(tabClean))
{
pvtPages.Items.Add(tabClean);
}
pvtPages.SelectedItem = tabSpecial;
}
}
/// <summary>
/// Creates a password with special characters, using the specified string as a seed
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static string CreatePassword_Special(string input)
{
// Convert the given string to a byte array so we can work with it
byte[] inputBytes = Encoding.Unicode.GetBytes(input);
// Retreive the user's master key
byte[] MasterKey = MSPWDStorage.GetMasterKey();
return(GenPasswordWithThisHash(characterArray_Special, SHA256(CombineByteArrays(inputBytes, MasterKey))));
}
private void btnEraseKey_Click(object sender, RoutedEventArgs e)
{
MSPWDStorage.DeleteMasterKey();
pvtPages.SelectedItem = tabKey;
pvtPages.Items.Remove(tabSpecial);
pvtPages.Items.Remove(tabAlpha);
pvtPages.Items.Remove(tabClean);
txtCleanDescription.Visibility = System.Windows.Visibility.Visible;
btnEraseKeyPrompt.Visibility = System.Windows.Visibility.Visible;
txtCleanSure.Visibility = System.Windows.Visibility.Collapsed;
btnEraseKey.Visibility = System.Windows.Visibility.Collapsed;
btnDoNotErase.Visibility = System.Windows.Visibility.Collapsed;
}
public MainPage()
{
InitializeComponent();
// If this is the first run of the app, show the master key page
if (!MSPWDStorage.MasterKeyFileExists())
{
pvtPages.SelectedItem = tabKey;
// We don't need to delete a key that doesn't exist, so hide the tab
pvtPages.Items.Remove(tabClean);
pvtPages.Items.Remove(tabAlpha);
pvtPages.Items.Remove(tabSpecial);
}
else
{
pvtPages.SelectedItem = tabSpecial;
}
// Event handlers for clearing data if the app is closed or backgrounded
PhoneApplicationService.Current.Closing += Current_Closing;
PhoneApplicationService.Current.Deactivated += Current_Deactivated;
}
