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Add option in select the number of passes for volume header over-writing. By default, it is set to 3 but it can be increased to 256 passes (which can lead to a delay of many hours for a single password change operation).

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This commit is contained in:
Mounir IDRASSI
2014-07-27 02:36:23 +02:00
parent 97154aaf51
commit 1c11ee428d
16 changed files with 67 additions and 35 deletions
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15
src/Mount/Mount.c
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@@ -1396,6 +1396,7 @@ BOOL CALLBACK PasswordChangeDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam, LPAR
LPARAM nIndex;
HWND hComboBox = GetDlgItem (hwndDlg, IDC_PKCS5_PRF_ID);
int i;
WipeAlgorithmId headerWipeMode = TC_WIPE_3_DOD_5220;
ZeroMemory (&newKeyFilesParam, sizeof (newKeyFilesParam));
@@ -1427,6 +1428,9 @@ BOOL CALLBACK PasswordChangeDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam, LPAR
SendMessage (hComboBox, CB_SETCURSEL, 0, 0);
PopulateWipeModeCombo (GetDlgItem (hwndDlg, IDC_WIPE_MODE), FALSE, FALSE, TRUE);
SelectAlgo (GetDlgItem (hwndDlg, IDC_WIPE_MODE), (int *) &headerWipeMode);
switch (pwdChangeDlgMode)
{
case PCDM_CHANGE_PKCS5_PRF:
@@ -1751,6 +1755,11 @@ BOOL CALLBACK PasswordChangeDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam, LPAR
HWND hParent = GetParent (hwndDlg);
Password oldPassword;
Password newPassword;
WipeAlgorithmId headerWiperMode = (WipeAlgorithmId) SendMessage (
GetDlgItem (hwndDlg, IDC_WIPE_MODE),
CB_GETITEMDATA,
SendMessage (GetDlgItem (hwndDlg, IDC_WIPE_MODE), CB_GETCURSEL, 0, 0),
0);
int nStatus;
int pkcs5 = SendMessage (GetDlgItem (hwndDlg, IDC_PKCS5_PRF_ID), CB_GETITEMDATA,
SendMessage (GetDlgItem (hwndDlg, IDC_PKCS5_PRF_ID), CB_GETCURSEL, 0, 0), 0);
@@ -1813,7 +1822,7 @@ BOOL CALLBACK PasswordChangeDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam, LPAR
try
{
nStatus = BootEncObj->ChangePassword (&oldPassword, &newPassword, pkcs5);
nStatus = BootEncObj->ChangePassword (&oldPassword, &newPassword, pkcs5, GetWipePassCount(headerWiperMode));
}
catch (Exception &e)
{
@@ -1825,14 +1834,14 @@ BOOL CALLBACK PasswordChangeDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam, LPAR
{
// Non-system
nStatus = ChangePwd (szFileName, &oldPassword, &newPassword, pkcs5, hwndDlg);
nStatus = ChangePwd (szFileName, &oldPassword, &newPassword, pkcs5, GetWipePassCount(headerWiperMode), hwndDlg);
if (nStatus == ERR_OS_ERROR
&& GetLastError () == ERROR_ACCESS_DENIED
&& IsUacSupported ()
&& IsVolumeDeviceHosted (szFileName))
{
nStatus = UacChangePwd (szFileName, &oldPassword, &newPassword, pkcs5, hwndDlg);
nStatus = UacChangePwd (szFileName, &oldPassword, &newPassword, pkcs5, GetWipePassCount(headerWiperMode), hwndDlg);
}
}