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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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8
src/Mount/MainCom.cpp
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@@ -100,13 +100,13 @@ public:
return BaseCom::CallDriver (ioctl, input, output);
}
virtual int STDMETHODCALLTYPE ChangePassword (BSTR volumePath, Password *oldPassword, Password *newPassword, int pkcs5, LONG_PTR hWnd)
virtual int STDMETHODCALLTYPE ChangePassword (BSTR volumePath, Password *oldPassword, Password *newPassword, int pkcs5, int wipePassCount, LONG_PTR hWnd)
{
USES_CONVERSION;
CW2A volumePathA(volumePath);
MainDlg = (HWND) hWnd;
if (volumePathA.m_psz)
return ::ChangePwd (volumePathA.m_psz, oldPassword, newPassword, pkcs5, (HWND) hWnd);
return ::ChangePwd (volumePathA.m_psz, oldPassword, newPassword, pkcs5, wipePassCount,(HWND) hWnd);
else
return ERR_OUTOFMEMORY;
}
@@ -261,7 +261,7 @@ extern "C" int UacRestoreVolumeHeader (HWND hwndDlg, char *lpszVolume)
}
extern "C" int UacChangePwd (char *lpszVolume, Password *oldPassword, Password *newPassword, int pkcs5, HWND hwndDlg)
extern "C" int UacChangePwd (char *lpszVolume, Password *oldPassword, Password *newPassword, int pkcs5, int wipePassCount, HWND hwndDlg)
{
CComPtr<ITrueCryptMainCom> tc;
int r;
@@ -269,7 +269,7 @@ extern "C" int UacChangePwd (char *lpszVolume, Password *oldPassword, Password *
if (ComGetInstance (hwndDlg, &tc))
{
WaitCursor ();
r = tc->ChangePassword (CComBSTR (lpszVolume), oldPassword, newPassword, pkcs5, (LONG_PTR) hwndDlg);
r = tc->ChangePassword (CComBSTR (lpszVolume), oldPassword, newPassword, pkcs5, wipePassCount, (LONG_PTR) hwndDlg);
NormalCursor ();
}
else

2
src/Mount/MainCom.h
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@@ -23,7 +23,7 @@ BOOL ComServerMain ();
void UacAnalyzeKernelMiniDump (HWND hwndDlg);
int UacBackupVolumeHeader (HWND hwndDlg, BOOL bRequireConfirmation, char *lpszVolume);
int UacRestoreVolumeHeader (HWND hwndDlg, char *lpszVolume);
int UacChangePwd (char *lpszVolume, Password *oldPassword, Password *newPassword, int pkcs5, HWND hwndDlg);
int UacChangePwd (char *lpszVolume, Password *oldPassword, Password *newPassword, int pkcs5, int wipePassCount, HWND hwndDlg);
#ifdef __cplusplus
}

2
src/Mount/MainCom.idl
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@@ -27,7 +27,7 @@ library TrueCryptMainCom
void AnalyzeKernelMiniDump (LONG_PTR hwndDlg);
int BackupVolumeHeader (LONG_PTR hwndDlg, BOOL bRequireConfirmation, BSTR lpszVolume);
DWORD CallDriver (DWORD ioctl, BSTR input, BSTR *output);
int ChangePassword (BSTR volumePath, Password *oldPassword, Password *newPassword, int pkcs5, LONG_PTR hWnd);
int ChangePassword (BSTR volumePath, Password *oldPassword, Password *newPassword, int pkcs5, int wipePassCount, LONG_PTR hWnd);
DWORD CopyFile (BSTR sourceFile, BSTR destinationFile);
DWORD DeleteFile (BSTR file);
BOOL IsPagingFileActive (BOOL checkNonWindowsPartitionsOnly);

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);
}
}

10
src/Mount/Mount.rc
View File

@@ -101,7 +101,7 @@ BEGIN
CONTROL "",IDC_VOLUME_PROPERTIES_LIST,"SysListView32",LVS_REPORT | LVS_ALIGNLEFT | LVS_NOSORTHEADER | WS_BORDER | WS_TABSTOP,7,6,269,154
END
IDD_PASSWORDCHANGE_DLG DIALOGEX 0, 0, 316, 162
IDD_PASSWORDCHANGE_DLG DIALOGEX 0, 0, 316, 183
STYLE DS_SETFONT | DS_MODALFRAME | DS_3DLOOK | DS_FIXEDSYS | DS_CENTER | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "Change Password or Keyfiles"
CLASS "CustomDlg"
@@ -124,7 +124,9 @@ BEGIN
RTEXT "Confirm Password:",IDT_CONFIRM_PASSWORD,9,93,75,16
RTEXT "PKCS-5 PRF:",IDT_PKCS5_PRF,9,137,74,10,SS_CENTERIMAGE
GROUPBOX "Current",IDT_CURRENT,6,3,238,58
GROUPBOX "New",IDT_NEW,6,63,238,93
GROUPBOX "New",IDT_NEW,6,63,238,113
COMBOBOX IDC_WIPE_MODE,89,155,125,90,CBS_DROPDOWNLIST | WS_TABSTOP
RTEXT "Wipe mode:",IDT_WIPE_MODE,9,157,74,8,0,WS_EX_RIGHT
END
IDD_MOUNT_DLG DIALOGEX 0, 0, 375, 271
@@ -351,7 +353,7 @@ BEGIN
LEFTMARGIN, 7
RIGHTMARGIN, 309
TOPMARGIN, 7
BOTTOMMARGIN, 155
BOTTOMMARGIN, 176
END
IDD_MOUNT_DLG, DIALOG
@@ -593,7 +595,7 @@ BEGIN
MENUITEM "Beginner's Tutorial", IDM_ONLINE_TUTORIAL
MENUITEM "Frequently Asked Questions", IDM_FAQ
MENUITEM SEPARATOR
MENUITEM "VeraCrypt Website", IDM_WEBSITE
MENUITEM "VeraCrypt Website", IDM_WEBSITE
MENUITEM "Downloads", IDM_TC_DOWNLOADS
MENUITEM "News", IDM_NEWS
MENUITEM "Version History", IDM_VERSION_HISTORY

4
src/Mount/Mount.vcproj
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@@ -373,6 +373,10 @@
RelativePath="..\Common\Volumes.c"
>
</File>
<File
RelativePath="..\Common\Wipe.c"
>
</File>
<File
RelativePath="..\Common\Wipe.h"
>

2
src/Mount/Resource.h
View File

@@ -106,11 +106,13 @@
#define IDC_SHOW_PASSWORD_CHPWD_ORI 1083
#define IDC_HK_DISMOUNT_PLAY_SOUND 1084
#define IDC_HOTKEY_ASSIGN 1085
#define IDC_WIPE_MODE 1085
#define IDC_HOTKEY_REMOVE 1086
#define IDC_HOTKEY_KEY 1087
#define IDT_HOTKEY_KEY 1088
#define IDC_HOTKEY_LIST 1089
#define IDC_RESET_HOTKEYS 1090
#define IDT_WIPE_MODE 1090
#define IDT_DISMOUNT_ACTION 1091
#define IDT_ASSIGN_HOTKEY 1092
#define IDC_HK_MOD_SHIFT 1093