private void FormMain_Load(object sender, EventArgs e)
{
// start the encryption thread pool to speed up the analyzer - this is also the first access to the native
// "TrueCrypt.dll" and therefore an exception may occur when the library cannot be loaded
try
{
TrueCrypt.EncryptionThreadPoolStart(Environment.ProcessorCount);
}
catch (Exception ex)
{
if (ex is DllNotFoundException || ex is EntryPointNotFoundException)
{
MessageBox.Show(this, PageContext.GetInstance().GetResourceString("LoadTrueCryptDllFailed"), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Stop);
silentExit = true;
Close();
return;
}
throw;
}
// try to open the TestCrypt driver just to test whether the driver can be opened
try
{
TrueCrypt.OpenDriver();
}
catch (TrueCrypt.TrueCryptException ex)
{
// the TestCrypt driver could not be opened - most probably this is caused by a 64-bit operating system
// which requires digitally signed drivers
string msg;
switch (ex.Cause)
{
case TrueCrypt.TrueCryptException.ExceptionCause.DriverLoadFailed:
// check whether loading the driver failed due to the missing digital driver signature
if (((uint)ex.ErrorCode == 0x80004005) &&
Wow.Is64BitOperatingSystem && Wow.IsOSAtLeast(Wow.OSVersion.WIN_VISTA))
{
// missing digital driver signature
notifyIcon.BalloonTipClicked += notifyIcon_BalloonTipClicked;
notifyIcon.BalloonTipTitle = PageContext.GetInstance().GetResourceString("LoadTestCryptDriverFailedTitle");
notifyIcon.BalloonTipText = PageContext.GetInstance().GetResourceString("DriverSignatureEnforcement");
notifyIcon.ShowBalloonTip(30000);
}
else
{
// another error has occurred
msg = string.Format(PageContext.GetInstance().GetResourceString("LoadTestCryptDriverFailed"), ex.ErrorCode, ex.Message);
MessageBox.Show(this, msg, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
break;
case TrueCrypt.TrueCryptException.ExceptionCause.DriverOpenFailed:
default:
msg = string.Format(PageContext.GetInstance().GetResourceString("OpenTestCryptDriverFailed"), ex.ErrorCode, ex.Message);
MessageBox.Show(this, msg, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Warning);
break;
}
}
}
private void mnuDismountAll_Click(object sender, EventArgs e)
{
try
{
TrueCrypt.DismountAll();
}
catch (TrueCrypt.TrueCryptException ex)
{
MessageBox.Show(this, string.Format("Unable to dismount all volumes: {0}", ex.Message), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public EncryptionScenarioViewModel(
DESEncryption desEncryption,
AESEncryption aesEncryption,
TrueCrypt trueCrypt) : base()
{
DisplayName = "Encryption";
Scenarios.Add(desEncryption);
Scenarios.Add(aesEncryption);
Scenarios.Add(trueCrypt);
}
/// <summary>
/// "Click" event handler of the "OK" button.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="T:System.EventArgs" /> instance containing the event data.</param>
private void btnAccept_Click(object sender, EventArgs e)
{
Nullable <TrueCrypt.Password> password = page.Password;
if (password.HasValue)
{
using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
byte[] data = new byte[TrueCrypt.TC_VOLUME_HEADER_GROUP_SIZE];
int count = fs.Read(data, 0, data.Length);
fs.Close();
int offset = 0;
TrueCrypt.Password pwd = password.Value;
while (offset + TrueCrypt.TC_VOLUME_HEADER_SIZE_LEGACY <= count)
{
Array.Copy(data, offset, data, 0, TrueCrypt.TC_VOLUME_HEADER_SIZE_LEGACY);
TrueCrypt.CRYPTO_INFO cryptoInfo = new TrueCrypt.CRYPTO_INFO();
if (0 == TrueCrypt.ReadVolumeHeader(false, data, ref pwd, IntPtr.Zero, ref cryptoInfo))
{
CryptoInfo = cryptoInfo;
break;
}
offset += TrueCrypt.TC_VOLUME_HEADER_SIZE;
}
if (offset + TrueCrypt.TC_VOLUME_HEADER_SIZE_LEGACY <= count)
{
// select the default keyboard layout and close the dialog (after setting the result of the dialog)
InputLanguage.CurrentInputLanguage = InputLanguage.DefaultInputLanguage;
DialogResult = DialogResult.OK;
Close();
}
else
{
MessageBox.Show(PageContext.GetInstance().GetResourceString("PasswordIncorrect"), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
}
}
