VeraCrypt
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path: root/src/Main/Forms/RandomPoolEnrichmentDialog.cpp
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Diffstat (limited to 'src/Main/Forms/RandomPoolEnrichmentDialog.cpp')
-rw-r--r--src/Main/Forms/RandomPoolEnrichmentDialog.cpp26
1 files changed, 24 insertions, 2 deletions
diff --git a/src/Main/Forms/RandomPoolEnrichmentDialog.cpp b/src/Main/Forms/RandomPoolEnrichmentDialog.cpp
index fcfd0767..f8b04d24 100644
--- a/src/Main/Forms/RandomPoolEnrichmentDialog.cpp
+++ b/src/Main/Forms/RandomPoolEnrichmentDialog.cpp
@@ -33,7 +33,7 @@ namespace VeraCrypt
}
}
- ShowBytes (RandomPoolStaticText, RandomNumberGenerator::PeekPool().GetRange (0, 24));
+ HideBytes (RandomPoolStaticText, 24);
MouseStaticText->Wrap (Gui->GetCharWidth (MouseStaticText) * 70);
MainSizer->SetMinSize (wxSize (-1, Gui->GetCharHeight (this) * 24));
@@ -41,6 +41,8 @@ namespace VeraCrypt
Layout();
Fit();
Center();
+
+ MouseEventsCounter = 0;
foreach (wxWindow *c, this->GetChildren())
c->Connect (wxEVT_MOTION, wxMouseEventHandler (RandomPoolEnrichmentDialog::OnMouseMotion), nullptr, this);
@@ -68,12 +70,20 @@ namespace VeraCrypt
if (ShowRandomPoolCheckBox->IsChecked())
ShowBytes (RandomPoolStaticText, RandomNumberGenerator::PeekPool().GetRange (0, 24));
+ else
+ HideBytes (RandomPoolStaticText, 24);
+
+ /* conservative estimate: 1 mouse move event brings 1 bit of entropy
+ * https://security.stackexchange.com/questions/32844/for-how-much-time-should-i-randomly-move-the-mouse-for-generating-encryption-key/32848#32848
+ */
+ if (MouseEventsCounter < 2560)
+ CollectedEntropy->SetValue (++MouseEventsCounter);
}
void RandomPoolEnrichmentDialog::OnShowRandomPoolCheckBoxClicked (wxCommandEvent& event)
{
if (!event.IsChecked())
- RandomPoolStaticText->SetLabel (L"");
+ HideBytes (RandomPoolStaticText, 24);
}
void RandomPoolEnrichmentDialog::ShowBytes (wxStaticText *textCtrl, const ConstBufferPtr &buffer)
@@ -94,4 +104,16 @@ namespace VeraCrypt
str[i] = L'X';
}
}
+
+ void RandomPoolEnrichmentDialog::HideBytes (wxStaticText *textCtrl, size_t len)
+ {
+ wxString str;
+
+ for (size_t i = 0; i < len + 1; ++i)
+ {
+ str += L"**";
+ }
+
+ textCtrl->SetLabel (str.c_str());
+ }
}