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Linux/MacOSX: Add switch to force the use of legacy maximum password length (64 UTF8 bytes)

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The switch is --legacy-password-maxlength
This commit is contained in:
Mounir IDRASSI
2019-11-03 22:54:23 +01:00
parent 8fb7742dad
commit a7d5b6a477
47 changed files with 92 additions and 36 deletions
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14
src/Main/Forms/VolumePasswordPanel.cpp
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@@ -21,6 +21,7 @@ namespace VeraCrypt
VolumePasswordPanel::VolumePasswordPanel (wxWindow* parent, MountOptions* options, shared_ptr <VolumePassword> password, bool disableTruecryptMode, shared_ptr <KeyfileList> keyfiles, bool enableCache, bool enablePassword, bool enableKeyfiles, bool enableConfirmation, bool enablePkcs5Prf, bool isMountPassword, const wxString &passwordLabel)
: VolumePasswordPanelBase (parent), Keyfiles (new KeyfileList), EnablePimEntry (true)
{
size_t maxPasswordLength = CmdLine->ArgUseLegacyPassword? VolumePassword::MaxLegacySize : VolumePassword::MaxSize;
if (keyfiles)
{
*Keyfiles = *keyfiles;
@@ -32,8 +33,8 @@ namespace VeraCrypt
UseKeyfilesCheckBox->SetValue (Gui->GetPreferences().UseKeyfiles && !Keyfiles->empty());
}
PasswordTextCtrl->SetMaxLength (VolumePassword::MaxSize);
ConfirmPasswordTextCtrl->SetMaxLength (VolumePassword::MaxSize);
PasswordTextCtrl->SetMaxLength (maxPasswordLength);
ConfirmPasswordTextCtrl->SetMaxLength (maxPasswordLength);
if (!passwordLabel.empty())
{
@@ -195,9 +196,10 @@ namespace VeraCrypt
FreezeScope freeze (this);
bool isPim = (*textCtrl == VolumePimTextCtrl);
int colspan = isPim? 1 : 2;
size_t maxPasswordLength = CmdLine->ArgUseLegacyPassword? VolumePassword::MaxLegacySize : VolumePassword::MaxSize;
wxTextCtrl *newTextCtrl = new wxTextCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, display ? 0 : wxTE_PASSWORD);
newTextCtrl->SetMaxLength (isPim? MAX_PIM_DIGITS : VolumePassword::MaxSize);
newTextCtrl->SetMaxLength (isPim? MAX_PIM_DIGITS : maxPasswordLength);
newTextCtrl->SetValue ((*textCtrl)->GetValue());
newTextCtrl->SetMinSize ((*textCtrl)->GetSize());
@@ -226,12 +228,12 @@ namespace VeraCrypt
{
shared_ptr <VolumePassword> password;
wchar_t passwordBuf[VolumePassword::MaxSize + 1];
size_t maxPasswordLength = bLegacyPassword? VolumePassword::MaxLegacySize: VolumePassword::MaxSize;
size_t maxPasswordLength = (bLegacyPassword || CmdLine->ArgUseLegacyPassword)? VolumePassword::MaxLegacySize: VolumePassword::MaxSize;
finally_do_arg (BufferPtr, BufferPtr (reinterpret_cast <byte *> (passwordBuf), sizeof (passwordBuf)), { finally_arg.Erase(); });
#ifdef TC_WINDOWS
int len = GetWindowText (static_cast <HWND> (textCtrl->GetHandle()), passwordBuf, VolumePassword::MaxSize + 1);
password = ToUTF8Password (passwordBuf, len);
password = ToUTF8Password (passwordBuf, len, maxPasswordLength);
#else
wxString passwordStr (textCtrl->GetValue()); // A copy of the password is created here by wxWidgets, which cannot be erased
for (size_t i = 0; i < passwordStr.size() && i < maxPasswordLength; ++i)
@@ -239,7 +241,7 @@ namespace VeraCrypt
passwordBuf[i] = (wchar_t) passwordStr[i];
passwordStr[i] = L'X';
}
password = ToUTF8Password (passwordBuf, passwordStr.size() <= maxPasswordLength ? passwordStr.size() : maxPasswordLength);
password = ToUTF8Password (passwordBuf, passwordStr.size() <= maxPasswordLength ? passwordStr.size() : maxPasswordLength, maxPasswordLength);
#endif
return password;
}